1670.4-2004

AS 1670.42004

Australian Standard

Fire detection, warning, control and intercom systemsSystem design, installation and commissioning

Part 4: Sound systems and intercom systems for emergency purposes

AS

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This Australian Standard was prepared by Committee FP-002, Fire Detection, Warning, Control and Intercom Systems. It was approved on behalf of the Council of Standards Australia on 17 March 2004 and published on 23 April 2004.

The following are represented on Committee FP-002:

Audio Engineering Society

Australasian Fire Authorities Council

Australian Building Codes Board

Australian Chamber of Commerce and Industry

Australian Electrical and Electronic Manufacturers Association

Australian Industry Group

Australian Institute of Building Surveyors

Deafness Forum, of Australia

Department of Defence

Fire Protection Association Australia

Institute of Security Executives

National Electrical Contractors Association Australia

Property Council of Australia

Scientific Services Laboratory AGALDepartment of Administrative Services

Keeping Standards up-to-date

Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased.

Detailed information about Standards can be found by visiting the Standards Web Shop at www.standards.com.au and looking up the relevant Standard in the on-line catalogue.

Alternatively, the printed Catalogue provides information current at 1 January each year, and the monthly magazine, The Global Standard, has a full listing of revisions and amendments published each month.

Australian StandardsTM and other products and services developed by Standards Australia are published and distributed under contract by SAI Global, which operates the Standards Web Shop.

We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at [email protected], or write to the Chief Executive, Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001.

This Standard was issued in draft form for comment as DR 02376.

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AS 1670.42004

Australian Standard



Originated as part of AS 22201978. Previous edition AS 2220.21989. Revised and redesignated as AS 1670.42004.

COPYRIGHT

Standards Australia International

All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher.

Published by Standards Australia International Ltd GPO Box 5420, Sydney, NSW 2001, Australia

ISBN 0 7337 5857 6

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2

PREFACE

This Standard was prepared by the Standards Australia Committee FP-002, Fire Detection,

Warning, Control and Intercom Systems, to supersede AS 2220.21989, Emergency

warning and intercommunication systems in buildings, Part 2: System design, installation

and commissioning.

The objective of this Standard is to specify the design, installation and commissioning

requirements for an evacuation and intercommunication system used in a building for the

safe evacuation of the building occupants in the event of a fire alarm.

AS 2220.21989 specified requirements for the installation of emergency warning and

intercommunication systems. This part of AS 1670 is drafted on the basis of functions that

are to be provided on all sound systems and intercom systems for emergency purposes and

optional functions (with requirements), which may be provided. The optional functions

enable the system to be installed to include either the warning functions or the intercom

functions, or both. It is intended that the options be used for specific applications when

required.

For the first time this Standard permits the installation of specific components that comply

with international equipment Standards (issued as AS Standards) and EN 54, Fire detection

and fire alarm systems. Committee FP-002 intends to withdraw existing Australian

equipment Standards where international Standards exist; however, this will take effect five

years after the publication of the Australian adoption of the international Standards.

This Standard will be referenced in the Building Code of Australia 2004, thereby

superseding AS 2220.21989, which will be withdrawn 12 months from the date of

publication of this Standard.

This Standard may be used in conjunction with the fire detection system installation

requirements specified in AS 1670.1 to form a complete fire detection, warning, control and

intercom system.

Maintenance requirements for control and indicating equipment are given in AS 1851,

Maintenance of fire protection equipment.

The terms normative and informative have been used in this Standard to define the

application of the appendix to which they apply. A normative appendix is an integral part

of a Standard, whereas an informative appendix is only for information and guidance.

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CONTENTS

Page

FOREWORD.............................................................................................................................. 5

SECTION 1 SCOPE AND GENERAL

1.1 SCOPE ........................................................................................................................ 6

1.2 APPLICATION ........................................................................................................... 6

1.3 REFERENCED DOCUMENTS .................................................................................. 6

1.4 DEFINITIONS ............................................................................................................ 7

1.5 COMPLIANCE WITH OTHER STANDARDS .......................................................... 8

1.6 INTERPRETATION OF SPECIFIED LIMITING VALUES ...................................... 8

SECTION 2 GENERAL INSTALLATION REQUIREMENTS

2.1 INDICATOR PANELS................................................................................................ 9

2.2 DISTRIBUTED EQUIPMENT PROTECTION......................................................... 10

2.3 WIRING .................................................................................................................... 10

2.4 EMERGENCY PROCEDURES ................................................................................ 10

2.5 OPERATORS INSTRUCTIONS.............................................................................. 11

2.6 INSTALLERS STATEMENT.................................................................................. 11

SECTION 3 POWER SUPPLY

3.1 GENERAL ................................................................................................................ 12

3.2 MAIN POWER SOURCE ......................................................................................... 12

3.3 STAND-BY POWER SOURCE ................................................................................ 12

3.4 POWER SOURCE RATING ..................................................................................... 12

3.5 BATTERY CAPACITY ............................................................................................ 13

3.6 CHARGING CURRENT........................................................................................... 13

3.7 BATTERIES AND ENCLOSURES .......................................................................... 13

3.8 ANCILLARY LOADS .............................................................................................. 14

SECTION 4 SOUND SYSTEM INSTALLATION REQUIREMENTS

4.1 GENERAL ................................................................................................................ 15

4.2 COMPONENTS ........................................................................................................ 15

4.3 FUNCTIONAL REQUIREMENTS........................................................................... 15

4.4 WIRING .................................................................................................................... 17

4.5 LOUDSPEAKERS .................................................................................................... 19

SECTION 5 INTERCOM SYSTEM INSTALLATION REQUIREMENTS

5.1 GENERAL ................................................................................................................ 21

5.2 COMPONENTS ........................................................................................................ 21

5.3 WARDEN INTERCOM POINTS.............................................................................. 21

5.4 WIRING .................................................................................................................... 22

SECTION 6 COMMISSIONING

6.1 GENERAL CHECKS ................................................................................................ 25

6.2 SPECIFIC SOUND SYSTEM CHECKS................................................................... 25

6.3 SPECIFIC INTERCOM SYSTEM CHECKS ............................................................ 26

6.4 DOCUMENTATION................................................................................................. 26

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Page

APPENDICES

A MEASUREMENT OF SPEECH INTELLIGIBILITY ............................................... 28

B METHODS OF MEASURING SPEECH INTELLIGIBILITY.................................. 30

C WIRING SYSTEMS RATING .................................................................................. 33

D STANDARD FORM OF INSTALLERS STATEMENT

FOR SOUND SYSTEM AND INTERCOM SYSTEM.............................................. 35

E COMMISSIONING TEST REPORT......................................................................... 37

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FOREWORD

A sound system and intercom system for emergency purposes is a life-safety system for

installation within a building or site. The purpose is to provide assistance in the orderly

evacuation of personnel in emergencies such as, but not limited to, fire, smoke, civil

commotion, bomb threats, siege, explosion, leakage of toxic substances or fumes and

structural damage. A guide to the development of evacuation procedures is described in

AS 3745.

To achieve this aim, the sound system and intercom system has the following capabilities as

appropriate:

(a) Receive alarm signals from a detection system.

(b) Delivery of intelligible speech for emergency announcements and directions.

(c) Audible, and where required, visual emergency signals.

(d) Provision for automatic and manual operation.

(e) Continuous operation under conditions of the emergency.

(f) Independence from other systems in manual operation.

(g) Provide a positive means of communication between the chief warden and the various

floor or area wardens.

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Standards Australia www.standards.com.au

6

STANDARDS AUSTRALIA

Australian Standard



S E C T I O N 1 S C O P E A N D G E N E R A L

1.1 SCOPE

This Standard specifies requirements for the design, installation and commissioning of

sound systems and intercom systems for emergency purposes comprising components

complying with the requirements of the appropriate product Standards.

NOTE: The general procedures for the use of the sound system and intercom system and the

response of personnel are given in AS 3745.

1.2 APPLICATION

The requirements of this Standard apply to the installation of a sound system and intercom

system installed either stand alone or as an integral part of a fire detection and warning

system. Where the sound system functions are required, they shall be installed in

accordance with the requirements of Section 4. Where the intercom system functions are

required, they shall be installed in accordance with the requirements of Section 5.

1.3 REFERENCED DOCUMENTS

AS

1259 AcousticsSound level meters (all parts)

1428 Design for access and mobility

1428.2 Part 2: Enhanced and additional requirementsBuildings and facilities

1603 Automatic fire detection and alarm systems

1603.5 Part 5: Manual call points

1603.11 Part 11: Visual warning devices

1670 Fire detection, warning, control and intercom systemsSystem design,

installation and commissioning

1670.1 Part 1: Fire

1670.4 Part 4: Sound systems and intercom systems for emergency purposes

2220 Emergency warning and intercommunication systems in buildings

2220.1 Part 1: Equipment design and manufacture

2293 Emergency evacuation lighting for buildings

2293.1 Part 1: System design, installation and operations

2484 FireGlossary of terms

2484.2 Fire protection and firefighting equipment

2659 Guide to the use of sound measuring equipment

2659.1 Part 1: Portable sound level meters

2676 Guide to the installation, maintenance, testing and replacement of secondary

batteries in buildings (all parts) Acc

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AS

2706 Numerical valuesRounding and interpretation of limiting values

3745 Emergency control organization and procedures for buildings

4029 Stationary batteriesLead acid (all parts)

4428 Fire detection, warning, control and intercom systemsControl and indicating

equipment

4428.0 Part 0: General requirements and test methods

4428.4 Part 4: Intercommunication systems for emergency purposes

60849 Sound systems for emergency purposes

AS/NZS

3000 Electrical installations (known as the Australian/New Zealand Wiring Rules)

3013 Electrical installationsClassification of the fire and mechanical performance

of wiring systems

3100 Approval and test specificationGeneral requirements for electrical equipment

60950.1 Information technology equipmentSafetyGeneral requirements

AS/ACIF

S009 Installation requirements for customer cabling

ABCB

BCA Building Code of Australia

EN

54-11 Manual call points

ISO

TR 4870 Acoustics; the construction and calibration of speech intelligibility tests

7731 ErgonomicsDanger signals for public and work areasAuditory danger

signals

8201 AcousticsAudible emergency evacuation signal

IEC

60268 Sound system equipment

60268-16 Part 16: Objective rating of speech intelligibility by speech transmission

index

ANSI

S3.5 Methods for the calculation of the articulation index

1.4 DEFINITIONS

For the purpose of this Standard the definitions given in AS 2484.2, the Building Code of

Australia (BCA) and those below apply:

1.4.1 Alert signal

An audible signal complying with ISO 7731 or a visual signal, or a combination of audible

and visual signals that call attention to the possibility of a hazardous or dangerous situation.

NOTE: It is recommended that the default alert signal complying with ISO 7731 consist of a

420 Hz square wave with an on period of 0.6 s and an off period of 0.6. Other signals may be

more appropriate for use where the ambient noise will mask the signal.

1.4.2 Discharged battery

A battery that has reached the minimum CIE operating voltage.

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1.4.3 Emergency call point

A device complying with the requirements of AS 1603.5 or EN 54-11 with the exception

that it is coloured white and bears the legend emergency alarm.

1.4.4 Evacuate signal

An audible or visual signal or a combination of audible and visual signals, complying with

ISO 8201, that means evacuate the building immediately.

NOTE: It is recommended the default evacuate signal complying with ISO 8201 consist of a

uniformly increasing frequency from 500 Hz to 1200 Hz during the 0.5 s on phase of the signal.

Other signals may be more appropriate for use where the ambient noise will mask the signal.

1.4.5 Evacuation zone

A subdivision of the premises that can be evacuated separately from any other subdivision.

NOTE: The term evacuation zone is used interchangeably with the term emergency zone used in

AS 60849.

1.4.6 Warning signal

An alert signal or evacuate signal or a combination of alert and evacuate signals.

1.5 COMPLIANCE WITH OTHER STANDARDS

The sound system and intercom system shall comply with the appropriate electrical safety

requirements specified in AS/NZS 3000 and the individual parts of the installation shall

comply with the appropriate Standards listed in Clause 1.3.

1.6 INTERPRETATION OF SPECIFIED LIMITING VALUES

For the purpose of assessing compliance with this Standard, the specified values herein

shall be interpreted in accordance with the rounding method described in AS 2706, that is,

the observed or calculated value shall be rounded to the same number of figures as in the

specified limiting value and then compared with the specified limiting value. For example,

for specified limiting values of 2.5, 2.50, and 2.500, the observed or calculated value would

be rounded respectively to the nearest 0.1, 0.01 and 0.001.

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S E C T I O N 2 G E N E R A L I N S T A L L A T I O N

R E Q U I R E M E N T S

2.1 INDICATOR PANELS

2.1.1 Location

The indicator panels shall be installed in approved locations complying with the following

requirements:

(a) The area shall be secure from unauthorized access.

(b) The ambient noise level at the indicator panel shall be not greater than 70 dB(A).

NOTE: This Standard expects the ambient noise level to be assessed taking into consideration

the unusual circumstances of an emergency. For example, during a fire, it is expected that a

fire brigade booster pump may be operating outside the building, possibly increasing the

noise level in the lobby area above 70 dB(A). The lobby area in this case would be unsuitable,

for the indicator panel, unless provisions were made for its acoustic isolation.

(c) Access to the indicator panel shall not be obstructed.

(d) Operation of the indicator panel shall not obstruct the evacuation of the building.

(e) Visible indications shall remain readily distinguishable under all ambient lighting

conditions.

(f) All controls and indicators shall be not less than 750 mm and not more than 1850 mm

above floor level.

(g) The indicator panel shall be located in an area that presents a low risk of damage to

the equipment and injury to personnel in an emergency.

NOTE: It is recommended that a telephone, with access to the public network, be provided in

the vicinity of the indicator panel.

2.1.2 Physical working environment

The following physical working environment requirements shall apply:

(a) Lighting In addition to the normal lighting pertaining to the area in which the

indicator panel is installed, emergency lighting complying with AS 2293.1 shall be

provided.

(b) Workspace The workspace for operational personnel shall be arranged so as to

minimize distraction by peripheral activities and its plan dimensions shall be not less

than those specified in Figure 2.1.

(c) Enclosure The CIE may share a common or adjoining enclosure with other CIE

complying with AS 4428 provided that the controls are located such that they can be

used by a separate individual to that operating fire CIE.

(d) Safety The area shall be free of ignition sources and stored combustible materials.

Areas such as electrical switch rooms, store rooms and the like, are not acceptable

locations.

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DIMENSIONS IN MILLIMETRES

FIGURE 2.1 INDICATOR PANELPERSONNEL WORKSPACE

2.2 DISTRIBUTED EQUIPMENT PROTECTION

Distributed equipment, serving other than the fire compartment in which it is installed, shall

be installed in a fire-isolated area that is free from ignition sources and stored combustible

materials.

2.3 WIRING

2.3.1 Wiring protection

The wiring of the sound system and intercom system shall comply with the requirements of

AS/NZS 3000, AS/NZS 3013. It shall be stranded, except where mineral insulated metal

sheathed (MIMS) cable is used, and shall have a cross-sectional area of not less than

0.75 mm2. It shall be dedicated to sound system and intercom system functions, except that

the wiring may be shared with systems complying with other parts of the AS 1670, provided

that the wiring complies with the most onerous requirements of the relevant part of

AS 1670.

In no case shall the wiring required by this clause conflict with the requirements of the

AS/ACIF S009.

2.3.2 Joints and terminations

Joints and terminations shall be made only in a suitably labelled enclosed terminal box

employing fixed terminations, and rated the same as the cable, in accordance with

AS/NZS 3013, where applicable.

Joints and terminations associated with vertical riser cables shall be made within the

associated fire-isolated duct.

2.3.3 Separation from other systems

The wiring of the sound system, intercom system and associated extra-low voltage (ELV)

circuits shall be separate and distinct from power and light circuits (see AS/ASIF S009 for

segregation of wiring systems requirements).

2.4 EMERGENCY PROCEDURES

A procedure providing instructions to be followed in case of emergency shall be positioned

adjacent to each indicator panel.

NOTE: The procedure is not specified in this Standard and depends on the type of building, type

of system and evacuation procedures required (see AS 3745).

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2.5 OPERATORS INSTRUCTIONS

Operators instructions complying with the requirements of AS 4428.0 shall be attached to,

or mounted, adjacent to all intercom panels.

These instructions shall be readily visible and legible, and shall be designed to remain so

after being in service for the expected life of the system.

2.6 INSTALLERS STATEMENT

The installer shall complete a statement outlining the installation criteria for sound system

and intercom system.

NOTE: A typical example of an installers statement is given in Appendix D.

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S E C T I O N 3 P O W E R S U P P L Y

3.1 GENERAL

When calculating the capacity of the power supply, consideration shall be made to

accommodate any ancillary loads.

Where the CIE uses a power supply common with other permitted CIE, the power supply

shall comply with the most onerous requirement of any of the connected CIE and each CIE

supply feed shall be provided with an isolation switch and over-current protection.

3.2 MAIN POWER SOURCE

The CIE shall be energized by a reliable source of supply and shall be connected in

accordance with AS/NZS 3000. The power source shall be either

(a) an a.c. supply from an electricity authority; or

(b) a source of equal quality and reliability to Clause 3.2(a).

3.3 STAND-BY POWER SOURCE

The system shall be provided with a stand-by power source that is capable of operating the

system should the main power source fail.

Where the stand-by power source is a battery, the battery shall comply with the

requirements of AS 4029.

3.4 POWER SOURCE RATING

3.4.1 Main power source

The main power source shall be capable of operating the system in its quiescent state,

including any quiescent ancillary load and all fault and isolation indication loads without

reliance on the stand-by power source. Where the main power source is also used for

charging the batteries it shall simultaneously charge the batteries as specified in Clause 3.6.

The main power supply shall be capable of supplying the sum of main power source loads

specified in each of the CIE system design, installation and commissioning Standards.

A typical set of calculations may be as follows:

CQPSU III += and

( )ACIEQCIEQANCQSQ , ofgreaterthe IIIII ++=

where

IPSU = total current required to power the system in its quiescent state and to

charge the battery

IQ = total quiescent current

IC = charging current calculated in Clause 3.6

IQS = highest quiescent current of the system

IQANC = any quiescent ancillary load connected

IQCIE = quiescent load of all other CIE connected

IACIE = any alarm current of other CIE required to be supplied by the main power

source

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3.4.2 Stand-by power source

The stand-by power source shall be capable of supplying all quiescent loads for at least 24 h

followed by not less than 30 min operation at full load. Where the stand-by power source is

a battery, the battery capacity shall be calculated in accordance with Clause 3.5.

3.5 BATTERY CAPACITY

When calculating battery capacity, allowance shall be made for the expected loss of

capacity over the useful life of the battery. A new battery shall be at least 125% of the

calculated capacity requirements, based on a loss of 20% of its capacity over the useful life

of the battery.

The battery capacity requirement shall be determined as follows:

(a) Determine the quiescent load current (IQ).

(b) Determine the full load current (IA).

(c) Determine the capacity de-rating factor (Fc) of the battery when discharged at the full

load rate taking into account the minimum operating voltage of the connected CIE

using the battery manufacturers data. Where more than one CIE is connected to the

battery, use the highest minimum of any of the CIEs. A value of 2 for FC is deemed

to satisfy these requirements.

(d) The 20 h discharge battery capacity C20 at 15C to 30C shall be determined as

follows:

C20 = 1.25 ((IQ TQ) + Fc (IA TA))

where

C20 = battery capacity in Ah at 20 h discharge rate

IQ = total quiescent current

TQ = quiescent stand-by power source time (normally 24 h)

Fc = capacity de-rating factor

IA = total current in alarm state

TA = alarm load stand-by power source time (normally 0.5 h)

1.25 = compensation factor for expected battery deterioration

Where the load may vary, the worst case average over any 24 h period shall be used.

Where the average battery temperature is outside 15C to 30C, the battery manufacturers

data shall be used to determine any further compensation factor to be applied.

3.6 CHARGING CURRENT

The battery charging current shall return a charge to a discharged battery to 80% of its

maximum rated capacity within 24 h.

3.7 BATTERIES AND ENCLOSURES

3.7.1 General

Batteries shall be located and installed in accordance with the requirements of the relevant

part of AS 2676 and the manufacturers recommendations.

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3.7.2 Battery enclosures

The battery and enclosure shall be readily accessible for inspection.

Battery enclosures shall be secured from unauthorized persons by a locked door. The key

shall be identical with other keys required for access to the control and indicating

equipment

For non-sealed batteries, the battery enclosure shall not be above the enclosure of any CIE.

The connecting leads to the battery shall be clearly labelled to reduce the possibility of

reverse connections to the battery. The battery shall not be tapped for intermediate voltages

and all connections shall be made using suitable connectors.

Where batteries are not adjacent to the indicator panels, all cabling shall have a minimum

rating of WS51W, in accordance with Appendix C, with the mechanical rating upgraded

dependent upon the hazard as defined in AS/NZS 3013.

3.8 ANCILLARY LOADS

Connected ancillary loads shall be provided with current limiting or overload protection.

Ancillary control devices or isolation relays external to the CIE shall be installed within

protective enclosures and shall be marked or labelled with the words EMERGENCY

SYSTEM.

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S E C T I O N 4 S O U N D S Y S T E M I N S T A L L A T I O N

R E Q U I R E M E N T S

4.1 GENERAL

Where the installation includes a sound system for emergency purposes, the additional

requirements of Section 4 shall be met.

4.2 COMPONENTS

The sound system shall comprise

(a) control and indicating equipment complying with AS 60849 or AS 2220.1;

(b) emergency call points;

(c) audible warning devices; and

(d) visual warning devices (where applicable) complying with AS 1603.11.

The individual components shall be compatible and selected in order to achieve stable and

reliable performance. The system shall use components in accordance with the component

manufacturers specifications.

Compliance of equipment required by Items (a), (b), (c) and (d) of this Clause shall have a

product listing by an internationally recognized fire protection listing organization

acceptable to the authority having jurisdiction. The product listing criteria shall include a

periodic audit to verify continued compliance.

4.3 FUNCTIONAL REQUIREMENTS

4.3.1 Distribution of audible signals

The audible warning signals shall be distributed throughout the appropriate zones by a

system of loudspeakers.

NOTES:

1 It is recommended that at least one power amplifier be provided for each zone.

2 Consideration should be given to the need for the distribution of warning signals for the

hearing impaired via means other than loudspeakers, such as

(a) visual warning devices (see AS 1603.11);

(b) induction loop systems (see AS 1428.2) where it augments a sound re-enforcement

system; and

(c) other sensory systems.

4.3.2 Initiation

The sound system shall be initiated by either a detection system, emergency call points or at

each indicator panel. Emergency call points shall be installed at the following locations:

(a) Each indicator panel.

(b) Adjacent to each warden intercom point (WIP) (when installed).

(c) Areas of the zone not protected by detection or suppression systems.

Manual call points connected to the fire detection system and installed in the above

locations shall meet the requirements of this Clause.

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4.3.3 Alert signal duration

Unless otherwise specified in the building emergency management plan, the alert signal

duration shall be set to 0 s such that only the evacuation signal shall be produced.

Where the alert signal is used, it shall continue to operate until manual control of the

system is taken or, if not responded to in a prescribed time from initiation, shall be

automatically replaced by an evacuation signal. The prescribed time shall be established to

suit the building in question but shall not exceed 10 min.

NOTE: For buildings over 25 m effective height, determined in accordance with the BCA, the

alert signal duration and any automatic sequencing of the evacuation signal should consider

horizontal and vertical exiting, occupant characteristics, the building design approach, affected

compartments and adjacent compartments as a sequence, and management in use principles.

4.3.4 Output of loudspeakers

At all places within the evacuation zone within a building where warning signals are

conveyed to building occupants, the A-weighted sound pressure level during the on phases

of the audible warning signals, measured with the time-weighting characteristic F (Fast)

(see AS 1259), shall exceed by a minimum of 10 dB the ambient sound pressure level

averaged over a period of 60 s, shall not be less than 65 dB and not more than 105 dB.

These values shall be determined in accordance with AS 2659.1.

NOTE: Measurement should be taken in the normal standing positions on the floor of coverage.

If the audible warning signals are intended to arouse sleeping occupants, the minimum

A-weighted sound pressure level of the signal shall be 75 dB at the bedhead, with all doors

closed.

NOTE: 75 dB(A) may not be adequate to awaken all sleeping occupants.

The performance of the sound system under stand-by power source operation shall not

cause audible emergency signals to fall by more than 6 dB sound pressure level (SPL)

below the required sound level when tested after 24 h of quiescent operation and the period

required to evacuate the premises, which shall in no case be less than 30 min.

Loudspeakers installed within the vicinity of any sound system panel or warden intercom

point (WIP) shall not inhibit nor adversely affect the operation of the system. In particular

care shall be taken that the proximity and power setting for any speakers near the sound

system panel do not cause acoustic feedback when the microphone is used.

Where occupants, such as patients in hospital wards, must not be subject to possible stress

imposed by loud noises, the sound pressure level and content shall be arranged to provide

warning for the staff and minimize trauma.

4.3.5 Voice message

The evacuation signal shall include a verbal messages stating emergency and evacuate

now. These messages shall be inserted in the evacuation signal in accordance with

ISO 8201.

NOTE: ISO 8201 permits longer additional voice messages to be inserted between evacuate signal

cycles. It is recommended that more detailed messages, giving specific instructions, be included

as part of the system design.

4.3.6 Intelligibility

At all places within the zone where ambient noise figures are less than 85 dB(A), the speech

transmission index (STI) shall be 0.5. The rating of speech intelligibility shall be in

accordance with the common intelligibility scale (CIS) method of AS 60849, measured in

accordance with Appendix A. The average speech SPL shall not exceed 110 dB(A).

NOTE: Methods of measuring speech intelligibility are given in Appendix B.

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The performance of the sound system under stand-by power source operation shall not

cause the CIS index to fall below 0.65 (0.45 STI) when tested after 24 h of quiescent

operation and the period required to evacuate the premises, which shall in no case be less

than 30 min.

4.3.7 Visual warning devices and tactile warning devices

In areas having high ambient noise levels, the audible warning system shall be reinforced

by a system of visual warning devices or other devices, to provide sensory stimulation

adequate for the needs of the person at risk. The temporal pattern described in ISO 8201

shall be imposed on the visual and tactile evacuation signals.

Visual warning devices shall be installed in areas where the background A-weighted

ambient noise level exceeds 95 dB(A) or where the wearing of hearing protection devices is

required (see AS 1269), or where required by the BCA for hearing impaired persons.

4.3.8 Interconnection to the fire CIE

The sound system shall be interconnected with the fire CIE where provided. Any fault

condition on the sound system shall be annunciated at the fire CIE.

Any fire CIE connected to the sound system shall have an isolate facility to allow the fire

detection system to be tested without initiating operation of the sound system.

4.3.9 Use of the sound system for non-emergency purposes

The sound system may be used for public address or background music under non-

emergency conditions provided that

(a) the CIE is designed to override these functions as specified in AS 60849;

(b) the capacity of the power supply unit provides sufficient current and meets any

additional non-emergency load imposed;

(c) the system integrity is maintained; and

(d) specified continuous fault monitoring and indicating functions are maintained.

4.4 WIRING


All cabling required to have protection (see Table 4.1 and Figure 4.1) shall have a minimum



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TABLE 4.1

PROTECTION REQUIREMENTS ON CABLING AND SPECIFIC COMPONENTS

Component Requirement

(a) Trunk cabling

(i) Cables, including joints and terminations, that

traverse any fire compartment to service another fire

compartment

Protection required

See Clause 4.4.1

(ii) Cables, including joints and terminations, that

traverse any evacuation zone to service another

evacuation zone

Protection required

See Clause 4.4.1

(b) Zone cabling

(i) Cables, including joints and terminations, running

within a single fire compartment not traversing an

evacuation zone boundary

Protection not required

(ii) Cables, including joints and terminations running

within a single evacuation zone and traversing a fire

compartment boundary


(c) Fire CIE interface cabling

Cables, including joints and terminations, between

fire CIE and sound system CIE

Protection required, except where the

equipment is in the same room and not

separated by more than 2 m

See Clause 4.4.1

(d) Indicator panel interconnection

Cables, including joints and terminations, between indicator

panels and sound system CIE

Protection required

See Clause 4.4.1

(e) Zone-terminating equipment

Speakers, lights and emergency call points Protection not required

(f) Distributed equipment Protection required (see Clause 4.5.1)

(g) Stand-by power source cabling Protection required, except where the

equipment is in the same room and not

separated by more than 2 m

See Clause 4.4.1

4.4.2 Integrity of circuits

Wiring between indicator panels, remote amplification equipment, fire indicator panel

(FIP), evacuation zone loudspeakers and emergency call points shall be arranged so that a

single short-circuit or open-circuit within a cable in any emergency zone shall not affect the

normal operation of any other emergency zone.

4.4.3 Circuit supervision

Where fault supervision of the system field wiring is required, any condition that will affect

the normal operation of the system shall be detected and reported at all indicator panels.

This shall include the removal of any actuating or output device that is a dedicated part of

the sound system (see Table 4.2).

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TABLE 4.2

SUPERVISION REQUIREMENTS ON SIGNAL LINES

Connection Monitoring requirements

(a) Loudspeaker lines between sound system CIE and loud

speakers

Open-circuit and short-circuit

(b) Outgoing signal lines between sound system CIE and visual

alarm


(c) Alarm-initiating signal lines

(i) All alarm-initiating signal lines between sound system

CIE and fire CIE

NOTE: This may be satisfied by the warning system

supervisor specified by the fire CIE or the sound

system CIE.

Open-circuit and short-circuit. Short-

circuit may be interpreted as a fire

alarm

(ii) Alarm-initiating signal lines between sound system CIE

and emergency call points

Open-circuit and short-circuit. Short-

circuit may be interpreted as a sound

system alarm

(d) Signal lines between physically separated parts of the sound

system CIE


(e) Sound system CIE fault signal to fire CIE Open-circuit and short-circuit

4.5 LOUDSPEAKERS

4.5.1 General

Loudspeakers shall be permanently fixed in position.

4.5.2 Connection facilities

Each incoming and outgoing conductor of the same potential shall be connected to a

separate screw or clamping facility. Terminal blocks shall be securely fixed to the

loudspeaker. Terminals shall only be accessible with the use of tools.

Speakers required to operate at voltages above ELV shall comply with the appropriate

requirements of AS/NZS 3100 or AS/NZS 60950.1.

4.5.3 Stress on conductors and terminals

Conductors shall be so supported and connected that there will be no undue mechanical

stress on the conductors or the terminations to which they are connected.

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FIGURE 4.1 TYPICAL SOUND SYSTEM CABLE PROTECTION SCHEMATIC

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S E C T I O N 5 I N T E R C O M S Y S T E M

I N S T A L L A T I O N R E Q U I R E M E N T S

5.1 GENERAL

Where the installation includes an intercom system, the additional requirements of

Section 5 shall be met.

5.2 COMPONENTS

The intercom system shall comprise

(a) control and indicating equipment complying with AS 4428.4 or AS 2220.1; and

(b) warden intercom point handset.

Compliance of equipment required by Items (a) and (b) of this Clause shall have a product

listing by an internationally recognized fire protection listing organization acceptable to the

authority having jurisdiction. The product listing criteria shall include a periodic audit to

verify continued compliance.

5.3 WARDEN INTERCOM POINTS

5.3.1 General

The WIP shall be located to enable the warden to readily control the evacuation of the

building occupants in an emergency.

NOTE: WIP handsets should not be located adjacent to loudspeakers or sounders.

5.3.2 Sound levels during and emergency

The anticipated SPL in the vicinity of each WIP location during an emergency shall not

adversely effect the ability of a warden to communicate with the intercom panel.

5.3.3 Location

WIP handsets shall be located in the following areas:

(a) On each floor, as determined by the emergency control organization defined in

AS 3745.

(b) At the designated building entry point in accordance with AS 1670.1 (if remote from

the intercom panel).

(c) In each zone, if each floor is divided into two or more emergency zones, as

determined by the emergency control organization defined in AS 3745.

(d) In each designated emergency lift.

(e) If required by the fire service, in or adjacent to pump rooms, sprinkler valve rooms

and hydrant relay booster pump sets.

(f) Adjacent to the FIP (if remote from the intercom panel).

The WIP handset shall be mounted at a height of not less than 1200 mm and not more than

1800 mm above finished floor level.

WIP handsets shall be permanently fixed in position.

5.3.4 Connection facilities

Each conductor shall be connected to a separate screw or clamping facility. Terminal blocks

shall be securely fixed. Terminals shall only be accessible with the use of tools. Acce

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5.3.5 Stress on conductors and terminals

Conductors shall be so supported and connected that there will be no undue mechanical

stress on the conductors or the termination to which they are connected.

5.3.6 Crosstalk, clarity and intelligibility

Crosstalk, clarity and intelligibility of conversation between the WIP handset and the

intercom panel after installation shall not suffer degradation below the minimum

requirement of AS 4428.4.

5.3.7 Aural call signal

The WIP aural call signal shall have a sound pressure level (SPL) of not less than 80 dB(A)

when measured at a distance of 1 m from the WIP. The SPL of the WIP handset aural call

signal shall also be met when the WIP handset is mounted within a security enclosure.

5.4 WIRING


All cabling required to have protection (see Table 5.1 and Figure 5.1) shall have a minimum



TABLE 5.1

PROTECTION REQUIREMENTS ON CABLING AND SPECIFIC COMPONENTS

Component Requirement

(a) Trunk cabling

(i) Cables, including joints and terminations, that traverse any fire

compartment to service another fire compartment

Protection required

See Clause 5.4.1

(ii) Cables, including joints and terminations, that traverse any

emergency zone to service another emergency zone

Protection required

See Clause 2.3.1

(b) Zone cabling

(i) Cables, including joints and terminations, running within a

single fire compartment not traversing an emergency zone

boundary


(ii) Cables, including joints and terminations, running within a

single emergency zone and traversing a fire compartment

boundary


(c) Cables, including joints and terminations between intercom panels Protection required

See Clause 2.3.1

(d) Zone terminating equipment for WIP handsets Protection not required

(e) Distributed equipment Protection required

See Clause 2.2 and 5.4.1

(f) Stand-by power source cabling Protection required, except

where the equipment is in the

same room and not separated

by more than 2 m

See Clause 4.4.1

5.4.2 Integrity of circuits

Wiring between CIE, intercom panels and WIPs shall be arranged so that a single short-

circuit or open-circuit within a cable in any emergency zone shall not affect the normal

operation of any other emergency zone.

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5.4.3 Circuit Supervision

Where supervision of the system field wiring is required, any condition that will affect the

normal operation of the system shall be detected and reported at the intercom panel. This

shall include the removal of any actuating or output device that is a dedicated part of the

intercom system (see Table 5.2).

TABLE 5.2

CIRCUIT SUPERVISION REQUIREMENTS ON SIGNAL LINES

Connection Circuit supervision requirements

Intercom system call signal and speech lines between Intercom CIE

and WIP handsets


Signal lines between components of the intercom CIE and panels if

not co-located Supervision

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FIGURE 5.1 TYPICAL INTERCOM SYSTEM CABLE PROTECTION SCHEMATIC

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S E C T I O N 6 C O M M I S S I O N I N G

6.1 GENERAL CHECKS

On completion of the installation of the sound system and intercom system, all equipment

shall be checked to ascertain that it has been installed and interconnected in accordance

with the system documentation and relevant Standards.

NOTES:

1 An example of a commissioning test report is shown in Appendix E.

2 Reference should be made to the emergency management plan for commissioning of the

system.

6.2 SPECIFIC SOUND SYSTEM CHECKS

The following specific checks shall be carried out:

(a) Audible signals Check that alert, evacuation and voice message signals are

distributed throughout the building in accordance with Clauses 4.3.4, 4.3.5 and 4.3.6.

(b) Visual and tactile signals Check that visual signals and tactile signals, where used,

comply with Clause 4.3.7.

(c) Automatic operation

(i) If the system is connected to a detection system, simulate an alarm for each

zone on the detection system indicator panel unless only a common alarm is

used. An alarm signal indication shall appear at the sound system panels and

the warning signals shall be transmitted to designated evacuation zones.

(ii) Actuate separately each emergency call point that is connected to the sound

system. An alarm signal indication shall appear at the sound system panels and

the warning signals shall be transmitted to designated evacuation zones.

(iii) Check the operation of the automatic evacuation sequence, where provided.

(d) Installation Check that the installation requirements comply with Section 4.

(e) Circuit supervision Check that the supervision of all signal lines operates in

compliance with Table 4.2.

(f) Battery voltage Allow the system to operate, in the quiescent state, for a period of

not less than 24 h. At the end of this period measure the temperature of the battery

space. Check that the battery voltage corresponds to that specified by the battery

manufacturer for that temperature.

(g) Speaker lines Check the audio impedance of each speaker line to determine that

(i) the permitted load on the amplifier is not exceeded; and

(ii) the sum of all the loads does not exceed that for which the stand-by batteries

were sized.

(h) Fault supervision Check that any fault is annunciated at the fire CIE.

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6.3 SPECIFIC INTERCOM SYSTEM CHECKS

The following specific checks shall be carried out:

(a) Intercom system

(i) Check that the interconnection between intercom panels is operational.

(ii) Check all handset volumes and signal-to-noise ratios for compliance with this

Standard.

(iii) Check that the system is capable of simultaneously communicating with a

number of WIPs, as specified.

(iv) Check that the all-call address is as specified.

(b) Installation Check that the installation requirements comply with Section 5.

(c) Circuit supervision Check that the supervision of all signal lines operate in

compliance with Table 5.2.

(d) Battery voltage Allow the system to operate, in the quiescent state, for a period of

not less than 24 h. At the end of this period measure the temperature of the battery

space. Check that the battery voltage corresponds to that specified by the battery

manufacturer for that temperature.

6.4 DOCUMENTATION

6.4.1 General

The following documentation shall be provided upon completion of commissioning tests:

(a) As-installed drawings covering the whole system.

(b) Documentation, as required by AS 4428.4 or AS 60849, as appropriate.

(c) Log in accordance with Clause 6.4.2.

6.4.2 Log

The log, which may be an electronic form of record keeping, shall have provisions for

entering the following information:

(a) Identification of the building.

(b) Description of the system components and their location.

(c) All commissioning data to serve as a basis for future service and including the

following:

(i) Type, quantity and 20 h discharge capacity of batteries required.

(ii) Date of battery installation and manufacturers recommended replacement

dates.

(iii) Manufacturers recommended float voltage at normal ambient temperature and

the voltage correction for other temperatures.

(iv) Quiescent current of the sound system and intercom system, ancillary loads and

that of any other CIE connected.

(v) Full load current of the sound system and intercom system, ancillary loads and

that of any other CIE connected.

(vi) The minimum operating voltage of all CIE connected.

(vii) The battery discharge capacity correction factor at full load as determined in

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(viii) Minimum battery capacity as calculated in Clause 3.5(d).

(ix) Minimum charging current as calculated in Clause 3.6.

(x) The main power source rating.

(xi) STI reading for each evacuation zone.

(d) Date of commissioning.

(e) A facility for recording the results of maintenance routines as specified in AS 1851.

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APPENDIX A

MEASUREMENT OF SPEECH INTELLIGIBILITY

(Normative)

A1 CHOICE OF MEASUREMENT

The intelligibility of speech shall be measured, and the requirements for reliable results

shall be satisfied. The results shall then be converted to the CIS according to the relevant

curve(s) given in Figure A1.

NOTE: One of the methods listed in Appendix B should be used.

A2 STATUS OF THE SOUND SYSTEM

Usually, the whole evacuation zone should be in operation for all measurements. If

measurements are carried out with the evacuation zone in a special status, this shall be

stated with the results.

A3 NUMBER OF MEASUREMENTS AND CALCULATION OF THE RESULT

The measurements shall be made at a sufficient number (n) of representative points, which

shall be detailed in the system specification, in each area of coverage. The arithmetical

average (Iav) of the intelligibility values on the CIS, and the standard deviation () of the

results, shall be calculated. The quantity Iav shall exceed the limit value specified in

Clause 4.3.6.

If the result is within of the limit, the measurements shall be repeated, preferably at a

larger number of points.

The mean value of intelligibility, and its 95% confidence interval, over the whole area of

coverage shall be calculated, taking into account the shape of the statistical distribution of

the results of the measurements.

A4 SOUND PRESSURE LEVEL (SPL)

The C-weighted SPL for the measurement shall be equal to the LCeq measured for not less

than 16 s at the measuring point when the system is in normal operation as an emergency

sound system.

NOTES:

1 If the RASTI method is used, A-weighting may be used for both measurements instead of

C-weighting.

2 Linear response may be used instead of C-weighting, only if the results are reliable.

A5 AMBIENT NOISE LEVEL

The A-weighted ambient noise level (the residual noise level) in the absence of the test

signal (the residual noise) shall be measured, in decibels re 20 Pa, over a period sufficient

to reasonably represent the residual noise at the time of the intelligibility test.

Measurements of the equivalent A-weighted SPL shall be made at representative points

over the area of coverage. The positions, duration and time of measurements shall be

reported, together with a note of any unusual circumstances which might affect the validity

of the measurements.

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FIGURE A1 CONVERSION OF EXISTING INTELLIGIBILITY SCALES TO

THE COMMON INTELLIGIBILITY SCALE

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APPENDIX B

METHODS OF MEASURING SPEECH INTELLIGIBILITY

(Informative)

B1 GENERAL

A number of methods of measuring speech intelligibility have been proposed, and several

are mentioned in National and International Standards. Work on this subject is continuing.

Pending completion of this work, the examples of the available methods herein provide

information on the correlation between them, and their limitations, either directly or by

reference to relevant Standards. This Appendix provides the procedures that should be used.

It is recommended to choose, if possible, the method of measurement that gives the greatest

discrimination in the range of intelligibility being investigated, taking into account the

standard deviation to be achieved and the gradients of the relative curves. For example, STI

has the greatest discrimination at high values of intelligibility, while a 256 word

phonetically balances word score has the greatest discrimination at low values.

B2 METHODS OF MEASUREMENT

B2.1 Speech transmission index (STI)

The STI is derived by calculation from measurements of the modulation transfer function

(MTF), and a number of computer-based measuring systems offer this facility. However,

the details of the carriers and modulation frequencies to be used, and the weights given to

them in the calculations, have not as yet been standardized.

NOTE: Weighting values that are intended to be used, unless there is a reason to the contrary, are

given in IEC 60268-16:1998.

B2.2 Rapid (or room) acoustics speech transmission index (RASTI)

The RASTI results from a simplified method of determining the STI, using two octave-band

noise carriers and four or five modulation frequencies.

NOTE: A description of this method is given in IEC 60268-16.

B2.3 Phonetically balance (PB) word scores

The PB word score method depends on the transmission of specially chosen words, selected

from a known population, to a panel of listeners.

NOTES:

1 General information is given in ISO/TR 4870.

2 For all types of subjective test involving room acoustics, the test words should be embedded

in carrier phrases as this produces representative reflections and reverberation during the

presentation of the test words.

B2.4 Modified rhyme test (MRT)

The MRT method also uses a panel of listeners.

B2.5 Articulation index (AI)

The AI is determined by measuring the sound pressure levels of the wanted speed signals

and the ambient noise. It is calculated after making corrections for masking, frequency and

amplitude distortion of the speech signal, reverberation and the presence of visual clues.

NOTE: Additional information is given in ANSI S3.5.

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B2.6 Articulated loss of consonants

The articulated loss of consonants, usually expressed as a percentage with the symbol

%ALcons can be determined from the results of transmission tests, using specially chosen

simple words.

NOTES:

1 Further information can be obtained from Peutz, V.M.A, Articulation loss of consonants as a

criterion from speech transmission in a room, J. Aud.Eng.Soc. 19, 12 (Dec. 1971).

2 ALcons does not use test words in carrier phrases and omits vowels. This leads to erroneous

results in the presence of reverberation or peak clipping.

B3 LIMITATIONS OF THE METHODS

B3.1 General

All the foregoing methods can give misleading results unless the measurement procedure is

carried out very carefully and is strict accordance with the relative Standard. Furthermore,

it is essential that the ambient noise level at the time of measurement is very similar to that

which occurs under normal operating conditions, or an appropriate correction is made to the

raw data of the test results.

NOTE: General information on intelligibility testing is given in ISO/TR 4870.

B3.2 Speech transmission index (STI)

Generally, STI methods are not suitable for testing systems introducing frequency shifts or

frequency multiplication or using vocoders.

With some measuring versions (see IEC 60268-16) the results are meaningful only if

(a) the system does not use any amplitude compression, expansion or non-stationary

temporal processing; and

(b) the total harmonic distortion of a sinusoidal signal giving the same sound pressure

level at the measuring position as the STI test signal does not exceed 17%

(corresponding to approximately 1 dB of compression of a pink-noise signal due to

peak clipping).

B3.3 RASTI

The results are meaningful only if the requirements given in IEC 60268-16 are satisfied. In

general, RASTI is suitable for room acoustics with direct sound transmission between

speaker and listener. Only in specific conditions (i.e., substantially linear systems) can the

method be applied to sound systems.

B3.4 Phonetically balanced (PB) word scores (256 and 1009 population)

The limitations of this method are given in ISO/TR 4870. It should be noted that, because

the method is based on the reception of words by listeners, there are not limitations in

respect of the characteristics of the sound system or those of the environment.

B3.5 Articulation index

The limitations applying to this method are given in ANSI S 3.5.

B3.6 Articulation loss of consonants

The limitations of this method are given in ISO/TR 4870. It should be noted that, because

the method is based on the reception of words by listeners, there are not limitations in

respect of the characteristics of the sound system or those of the environment. If, however,

another method of measurement is used, there may be limitations in these respects.

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B4 CORRELATION OF THE RESULTS OF THE VARIOUS METHODS

In order to specify a single figure for the intelligibility requirements of a system, and to

compare results of different measurements, much work has been done to determine

relationships between the results of the various methods of measurement. In most cases,

these relationships are now firmly established and accepted, despite being subject to a

degree of uncertainty or statistical variation. For the purposes of the present Standard, it has

been found necessary to correlate the results of each of the foregoing methods to a new

scale, termed the common intelligibility scale (CIS). An essential requirement, due to the

aforementioned uncertainty, is that the gradient of each correlation curve is neither too

small nor too great, as each of these conditions exaggerates the uncertainty in the

correlation.

The correlations that have been determined are given in Figure A1.

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APPENDIX C

WIRING SYSTEMS RATING

(Normative)

C1 PROTECTION AGAINST EXPOSURE TO FIRE

All wiring systems required to have protection against fire shall have a rating of not less

than 120 min. This rating is represented as WS5X.

C2 PROTECTION AGAINST MECHANICAL DAMAGE

C2.1 General

Protection against mechanical damage shall be provided in accordance with

Paragraphs C2.2 to 2.7, as applicable. The areas indicated should not be considered as a

rigid list to be adhered to with no deviations, rather they should be considered as a guide to

the types of areas and causes of damage to be encountered. Details of ways to achieve the

grade of protection can be found in AS 3013.

C2.2 WS5X

Areas where physical damage is considered to be unlikely. Examples of these areas are

(a) masonry riser shafts with strictly limited access;

(b) non-trafficable ceiling void areas; non-trafficable ceiling void areas;

(c) inaccessible underfloor areas;

(d) underground installation in accordance with AS/NZS 3000; and

(e) internal domestic and office situations where cabling is mounted on walls at heights

above 1.5 m.

C2.3 WS51

Areas where physical damage by light impact is considered possible. Examples of these

areas are

(a) internal domestic or office situations where cable is mounted on walls at heights

below 1.5 m; and

(b) trafficable ceiling void areas where access to building services for maintenance

purposes is required.

C2.4 WS52

Areas where physical damage by impact from manually propelled vehicle is possible.

Examples of these areas are

(a) passageways and storerooms in domestic, office and commercial locations where

hand trucks and barrows may be used, and cables are mounted at a height of less than

1.5 m;

(b) plant rooms where only minor equipment is installed; and

(c) workshops where repair and maintenance, on small equipment and furniture or the

like, is carried out, and cables are mounted at a height of less than 2.0 m.

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C2.5 WS53

Areas where physical damage by impact from light vehicles is possible. Examples of these

areas are

(a) car parks and driveways where cars and other light vehicles are present and cables are

mounted at a height of less than 2.0 m; and

(b) storage areas where manually operated devices such as pallet trucks may be operated

and cables are mounted at a height of less than 2.5 m.

C2.6 WS54

Areas where physical impact from vehicles with rigid frames or rigid objects, the weight of

which does not exceed 2.0 t, is possible. Examples of these areas are

(a) small delivery docks where the cabling is mounted below a height of 3.0 m;

(b) warehouses with pallet storage up to 3.0 m and use of forklift trucks; and

(c) heavy vehicle workshops.

C2.7 WS55

Areas where physical damage from impact by laden vehicles or objects the laden weight of

which exceeds 2.0 t. Examples of these areas are

(a) loading and delivery docks;

(b) fabrication and maintenance areas for medium to heavy engineering; and

(c) large high pile storage warehouses with forklift trucks.

Where any WS cabling traverses areas of various protection requirement, and it is neither

viable nor practicable to change the degree of protection at the transition points, the

installed cabling shall comply with the highest requirement of protection.

C3 PROTECTION AGAINST HOSING WITH WATER

Where the wiring system is required to maintain its integrity after exposure to fire and

subsequent hosing with water, it shall have the suffix W appended to its rating,

i.e., WS5XW.

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APPENDIX D

(Informative)

STANDARD FORM OF INSTALLERS STATEMENT FOR SOUND SYSTEM AND INTERCOM SYSTEM

1 Name of premises ......................................................................................................

2 Situated at .................................................................................................................

..................................................................................................................................

..................................................................................................................................

3 I/We have installed in the above premises

an alteration to the system of* ..........................................................................

a system of*.....................................................................................................

(Brand name)

4 The system incorporates ...........................................................................................

.................................................................................................................................

...................................... ancillary equipment

CIE location ..............................................................................................................

5 The quiescent load of ancillary equipment is .............................................................

6 Primary power voltage and source .............................................................................

7 Secondary battery type and capacity .........................................................................

8 System maintenance agreement details .....................................................................

9 Portion/s of premises not served by this system ........................................................

.................................................................................................................................

I/We hereby certify that:

a The installation is complete and has been thoroughly tested.

b The system is installed in accordance with the current requirements of

AS 1670.4*.

c The system is installed in accordance with attached design specification*.

Except in regard to the following details*....................................................................

.................................................................................................................................

.................................................................................................................................

Which have been approved by ...................................................................... (person)

of......................................................................................................... (organization)

*Strike out the words that are not applicable.

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Fa

ult

sig

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fire

CIE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

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APPENDIX E

COMMISSIONING TEST REPORT

(Normative)

THE SOUND SYSTEM AND INTERCOM SYSTEM IS INSTALLED AT:

(Premises) ...................................................................................................................

...................................................................................................................

...................................................................................................................

Postcode ....................................................

Owner or Owners Authorized Agent........................................................................................

..............................................................................................................................................

..............................................................................................................................................

Postcode .....................................................

* NEW

* MODIFICATION TO SYSTEM

* ADDITION TO

(* Cross out those not applicable)

Date of commissioning tests ...................................................................................................

Name and address of commissioning company, company stamp, or company name in BLOCK LETTERS ..............................................................................................................................

..............................................................................................................................................

..............................................................................................................................................

..............................................................................................................................................

Postcode .....................................................

Commissioning person

Name (print) .............................................................................

Signature ..................................................................................

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AS 1670.42004 38


INSTRUCTIONS:

This form is to be used in conjunction with

(a) operators manual;

(b) installers statement(s); and

(c) as-installed drawings,

to provide a complete description of the installed system and its tested performance at the time of its commissioning into service.

SYSTEM INFORMATION

GENERAL YES

(a) All system equipment is located and installed in accordance with the as installed drawings.

(b) The evacuation zone facilities have been correctly labelled and that the evacuation zone is immediately apparent from the labelling.

(c) All loudspeakers are of the type specified.

(d) The total zone rating does not exceed amplifier capacity.

(e) The WIP locations have been correctly labelled and the emergency zones are immediately apparent from the labelling.

(f) All WIPs are of the type specified.

WIRING

(a) The a.c. primary power source for the system has been provided in accordance with the requirements of AS/NZS 3000 and Section 4 of AS 1670.4.

(b) The system wiring complies with the requirements of Clause 2.3 of AS 1670.4.

(c) A fault signal is displayed at the intercom panel when the circuit wiring at the last emergency call point on each zone is open-circuited.

POWER SUPPLY

(a) The power supply unit functions in accordance with the requirements of Section 3 of AS 1670.4.

(b) The installed battery has sufficient capacity to operate the system. Calculations as per Clause 3.5 of AS 1670.4 are attached.

(c) Record the following:

(i) Mains supply voltage .....................................................................

(ii) Float charge voltage ......................................................................

(iii) Full load current of system.............................................................

(iv) Quiescent current of system ..........................................................

(v) Rated output current of battery charger ..........................................

(vi) Battery type and capacity ..............................................................

(vii) Battery manufactured date.............................................................

(viii) Recommended battery replacement due date.................................

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DOCUMENTATION

(a) The operators instructions have been provided.

(b) The as installed drawings have been provided and they correctly represent the installation.

(c) The logbook/log has been provided.

OPERATIONAL TESTS

(a) A fault signal is displayed at the sound system panel when the circuit wiring at the last speaker on each zone is open-circuited.

(b) A fault signal is displayed at the sound system panel when the circuit wiring at the last speaker on each zone is short-circuited.

(c) Each speaker operates in accordance with the requirements of Section 4 of AS 1670.4.

(d) Alert, evacuation and voice message signals are distributed throughout the building in accordance with Clause 4.3.4, 4.3.5 and 4.3.6 of AS 1670.4.

(e) Visual warning devices, where used, comply with Clause 4.3.7 of AS 1670.4.

(f) Automatic operation.

(i) If the system is connected to a fire detection system, a fire alarm for each zone on the FIP, correctly initiates the appropriate sound system zone.

(ii) Each emergency call point that is connected to the sound system initiates an alert signal indication at the sound system panel and the alert signal is transmitted to designated evacuation zones.

(iii) The alert signal changes to an evacuation signal in the specified time.

(iv) The operation of the automatic evacuation sequence, where provided, operates as specified.

(g) The environmental conditions in which the equipment is installed permit satisfactory use of the system in accordance with Clause 2.1 of AS 1670.4.

(h) A fault signal is displayed at the intercom panel when the circuit wiring at each WIP is open-circuited.

(i) A fault signal is displayed at the intercom panel when the circuit wiring at each WIP is short-circuited.

(j) Each WIP operates.

(k) The aural call signal at each WIP complies with Clause 5.3.7 of AS 1670.4.

RECORDING RESULTS

The results of operational test in each emergency zone are attached to this report and recorded in the log.

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NOTES

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Standards Australia

Standards Australia is an independent company, limited by guarantee, which prepares and publishes

most of the voluntary technical and commercial standards used in Australia. These standards are

developed through an open process of consultation and consensus, in which all interested parties are

invited to participate. Through a Memorandum of Understanding with the Commonwealth government,

Standards Australia is recognized as Australias peak national standards body. For further information

on Standards Australia visit us at

www.standards.org.au

Australian Standards

Australian Standards are prepared by committees of experts from industry, governments, consumers

and other relevant sectors. The requirements or recommendations contained in published Standards are

a consensus of the views of representative interests and also take account of comments received from

other sources. They reflect the latest scientific and industry experience. Australian Standards are kept

under continuous review after publication and are updated regularly to take account of changing

technology.

International Involvement

Standards Australia is responsible for ensuring that the Australian viewpoint is considered in the

formulation of international Standards and that the latest international experience is incorporated in

national Standards. This role is vital in assisting local industry to compete in international markets.

Standards Australia represents Australia at both ISO (The International Organization

for Standardization) and the International Electrotechnical Commission (IEC).

Electronic Standards

All Australian Standards are available in electronic editions, either downloaded individually from our web

site, or via On-Line and DVD subscription services. For more information phone 1300 65 46 46 or visit

Standards Web Shop at

www.standards.com.au

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GPO Box 5420 Sydney NSW 2001

Administration Phone (02) 8206 6000 Fax (02) 8206 6001 Email [email protected]

Customer Service Phone 1300 65 46 46 Fax 1300 65 49 49 Email [email protected]

Int

1670.4-2004

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