structural lightning protection and earthing systems a ... kit/sk20/product handb… · novaris...

Novaris offers:

Structural Lightning Protection and Earthing Systems

- design and advice on lightning protection systems for all structures in accordance with recognised world standards.

- supply of structural lightning protection and earthing components (refer to the Novaris ‘Earthing Handbook’).

A Comprehensive range of Surge Protection Products to suit any application

- ranging from main switchboard and distribution board surge protection, PLC and control system protection,

to RF coaxial cable protection.

Custom Product Design

- our innovative R&D team can engineer a surge protection solution for even the most demanding of applications.

Investigation and Analysis

- Novaris offers a complete package from analysis of your existing earthing and surge protection system to providing

complete lightning and surge protection recommendations based on site surveys and technical analysis.

Project Management & Installation

- Novaris actively seeks consultancy, project management and installation work. Our experience extends from

Australia to the Pacific, Asia, Africa and the Middle East.

The 'Novaris Systematic Approach' outlines a simple yet effective approach to lightning and surge protection.

This handbook provides an overview of the Novaris surge protection product range. Our structural and earthing

products are outlined in the Novaris ‘Earthing Handbook’. For a detailed explanation of the ‘Novaris Systematic

Approach’ ask your local agent for a copy of the Novaris ‘Technical Handbook’.

Novaris is dedicated to solving problems caused by direct and indirect lightning strikes and other electrical

disturbances on power and data signalling lines. Such problems contribute to or directly cause the failure of sensitive

electrical and electronic equipment. Each year millions of dollars of damaged equipment and lost time can be directly

attributed to lightning strikes and other electrical disturbances.

Novaris is a market leader in adopting a 'Systematic Approach'

to lightning and surge protection.

Define Boundaries

Protect Structure

Install Bonded Earthing System

Protect Power Lines

Protect Signal/Data Lines

The Systematic Approach

Lightning strikes are an unpredictable natural phenomenon. However

the way equipment can be protected from lightning strikes is predictable.

The ‘Novaris Systematic Approach’ is a step-by-step solution

to lightning and surge protection that can be applied to any application.

1

2

3

4

5

Boundaries divide areas of different potential

A single bonded earthing system within each boundary is essential

Protect all power lines crossing protection boundaries

Protect all signal/data lines crossing protection boundaries

Novaris supports conventional lightning protection methods

Power ProtectionShunt Connected

Power ProtectionSeries Connected

Coaxial Protection

Telephone Protection

LAN & CCTVProtection

Process ControlProtection

Special Products

6

7

8

9

10

11

12

Additional Information

14

Models featuring multistage transient protection deliver greater levels of protection through a staged approach. The primary stage absorbs the majorityof the surge energy. The remaining stages provide accurate clamping and adegree of redundancy.

Novaris models featuring all mode protection provide protection for all combinations of lines (L-N, L-E, N-E) ensuring the maximum level of protectionis achieved at all times. They have been designed for installation in any wiringsystem worldwide.

Models featuring redundant segments have a parallel redundant arrangement ofhigh energy metal oxide varistors (MOVs), thus promoting long life and exceptional surge handling capacity.

Surge current fuses allow components to absorb maximum energy but in theevent of a component failure the fuse will open to isolate the damaged component.

Sustained overvoltages can cause components to overheat and degrade.Thermal sensing warns of this condition without disconnecting the protection.

All ModeProtection

MultistageTransientProtection

RedundantSegments

Surge CurrentFusing

ThermalSensing

A digital display confirms the device rating upon switch on then displays percentage active. The display indicates segment status and thermal overload.

PercentageActive Display

LED indicators are provided on models to indicate operating status. LED StatusDisplay

Models featuring external alarms have voltage free changeover contacts forremote status indication.

External Alarms

Protection devices housed in DIN 43880 compliant enclosures allow for convenientinstallation on DIN rail fittings commonly used in switchboards worldwide.

DIN 43880Compliant

Novaris surge protection products are housed in safe, all metal enclosures. Inthe event of a prolonged overvoltage they will not catch fire or explode.

Safe MetalEnclosure

KEY PRODUCT FEATURESUse the guide below to help select the appropriate Novaris product.

Selecting Power Protection

DETERMINE SURGE CURRENT RATINGS

DETERMINE LOAD CURRENT RATINGS

Surge Filter• Connects in series with the load.• Multiple stages of protection.• Protects even the most sensitive

equipment.• Performance is independent of

installation conditions.

Surge Diverter• Shunt connected.• Single stage protection.• Adequate protection for

non-critical equipment.• Performance is highly

dependent on installation conditions.

1

2

3

4

Novaris recommends:

All CRITICAL equipment should be protected by a SURGE FILTER.

NON-CRITICAL equipment may be protected by a SURGE DIVERTER alone.

CriticalEquipment is considered 'CRITICAL' if:1. The equipment is sensitive to

surges (i.e. it contains a micro processor or other sensitive solid-state electronics).

2. The equipment is relatively expensive to replace.

3. The cost of downtime is unacceptably high.

Non-CriticalIf equipment does not meetany of the ‘CRITICAL’ conditions then it is consideredto be 'NON-CRITICAL'.

The surge current rating of a surge protector must be correctly chosen to ensure the protector has a long working life.

Novaris recommends:• Main switchboard protection should have a surge rating of 160kA.• Distribution board protection should have a surge rating of 40kA.• Final circuit / equipment level protection should have a minimum surge

rating of 8kA.

Surge FilterThe load current rating of a surge filtermust be equal to or greater than therating of the circuit being protected.

Surge DiverterA surge diverter is shunt connectedand does not conduct any of theload current.

SELECT SURGE FILTER or SURGE DIVERTER

IDENTIFY CRITICAL or NON-CRITICAL EQUIPMENT

Power line surge protection must:

1. Provide adequate protection for all equipment.

2. Achieve a long working life.

3. Optimise the cost and size of the surge protector.

4

Signal and Coaxial surge protection must:

1. Provide adequate protection for all equipment.

2. Achieve a long working life.

3. Allow the signal to pass under normal operation.

4. Optimise the cost and size ofthe surge protector.

Selecting Signal Protection

Selecting Coaxial Protection

SELECT CLAMPING VOLTAGE

DETERMINE SIGNAL CURRENT

SELECT SIGNAL FREQUENCY / DATA RATE

CONSIDER EARTH ISOLATION

Determine peak signal voltage and select clamping voltage from Table 1.2

DETERMINE SIGNALLING PROTOCOL AND PEAK LINE VOLTAGE Table 7 on page 20 provides common signalling protocols and the appropriate Novaris protection product for each application.

1

345

For standard models the maximum current is 350mA, while /2A models provide for higher current signals of up to 2A.

For standard models the signal bandwidth is 1.5MHz, /HF models provide for higher frequencies of up to 25MHz.

SELECT CLAMPING VOLTAGE

IDENTIFY MAXIMUM OPERATING FREQUENCY

TUNED STUB PROTECTORS

Determine power rating and select protector voltage rating from Table 2.2

IDENTIFY CONNECTOR TYPE1

3

4For standard models the maximum signal frequency is to 2GHz, /3Gmodels feature replaceable gas arrester elements and also provide foroperation up to 3GHz.

For narrow bandwidth applications where no DC voltage is injected, tuned stub protectors provide exceptionally low let through voltages, very low intermodulation products and excellent working life due to their unique mechanical design.

If the screen must be kept isolated from earth select /I models.

Power (W) Arrester Voltage (V)

0-40 90

40-125 230

125-300 350

300-800 600

800-2000 1000

Nominal Peak Clamping Signal Voltage (V) Voltage (V)

0-5 7.5

6-12 18

13-24 36

25-48 68

49-180 200

Table 2.Power / voltage selection.

Table 1.Clamping voltage selection.

5

Install N series surge diverters at major distribution boards in medium tohigh exposure locations. Provides all mode all MOV protection. /EVmodels are designed for applications where voltage regulation is poor.All models are suitable for any wiring system worldwide.

Technical Information Sheet: SD1-40N

Install DINsafe surge diverters at major distribution boards in low tomedium exposure locations. All mode protection is provided by a combination MOV and gas discharge tube circuit.Models are available for all wiring systems worldwide.

Technical Information Sheet: SD1-40DIN/3

POW

ER P

ROTE

CTIO

N -

Sur

ge D

iver

ters

APPLICATION ORDERING

Main Switchboard (MSB)Use MULTIMOV high energy surge diverters for point of entry protectionat main switchboards. /EV models are designed for applications wherevoltage regulation is poor. Models are available for all wiring systems worldwide.

Technical Information Sheets: SD1-80 & SD3-120

SD x - y /zx = Phases: 1, 2, 3y = Surge rating kA: 80, 120,

160, 200z = N-E protection: /N

Polycarbonate enclosure: /PMetal enclosure: /EExtended voltage: /EV

e.g. SD3-160/N/E

Distribution Board (DB) - High Exposure SD x - y N /zx = Phases: 1, 2, 3y = Surge rating kA: 40, 80z = Polycarbonate enclosure: /P

Metal enclosure: /EExtended voltage: /EV

e.g. SD3-80N/EV

Distribution Board (DB) - Low Exposure SD x - y DIN /3zx = Phases: 1, 2, 3y = Surge rating kA: 25, 40, 80,

120 (3phase only)z = External alarm: /A

Polycarbonate enclosure: /Pe.g. SD3-40DIN/3A/P

High VoltageEngineered for system voltages greater than 240/415V. Applicationsinclude mining, aviation and railway signalling industries. Alternative voltage ratings are available on request.

Technical Information Sheet: SD2000

SD2000 - xx = Surge rating kA: 70, 100e.g. SD2000-70

All ModeProtection


RedundantSegments

Surge Current Fusing

ThermalSensing


LED StatusDisplay

ExternalAlarm

DIN 43880Compliant

Safe MetalEnclosure

Note: Standard products are rated for a nominal system voltage of 220/380to 240/415. Alternative voltage ratings are available on request.e.g. SD1-160/110V

6

POW

ER P

ROTE

CTIO

N -

Sur

ge F

ilter

s

Main Switchboard (MSB)

Novaris surge filters provide unsurpassed levels of protection. Wheninstalled at a main switchboard Novaris surge filters will protect all connected equipment. Versions available up to 2000A per phase.Models are available for all wiring systems worldwide.

Technical Information Sheets: SF132 & SF3200


SF x y - z /xxx = Phases: 1, 2, 3y = Load current Amps: 32, 40, 63,

125, 200, 315, 450, 630, 800,1200, 1600, 2000

z = Surge rating kA: 80, 120, 160, 200xx = Metal enclosure: /E

HRC fusing: /FCircuit breaker: /CBOvervoltage relay: /OVRExtended voltage: /EV

e.g. SF31200-160/E

Distribution Board (DB)Novaris 40kA rated surge filters provide excellent distribution boardprotection of critical equipment up to 315A per phase.Models are available for all wiring systems worldwide.

Technical Information Sheets: SF132 & SF3200

SF x y - z /xxx = Phases: 1, 2, 3y = Load current Amps: 32, 40, 63,

125, 200, 315z = Surge rating kA: 40, 80xx = Metal enclosure: /E

HRC fusing: /FCircuit breaker: /CBOvervoltage relay: /OVR

e.g. SF3125-40/E

Final Circuit / Equipment

For final circuit and/or equipment level protection these DINsafe surge filters provide excellent protection for critical equipment up to 20A per phase.Models are available for all wiring systems worldwide.

Technical Information Sheets: SF105DIN & SF105DIN/A

SF x y DIN /zSF x y DIN - 40 /z (40kA version)

x = Phases: 1, 2, 3y = Load current Amps: 2, 5,10, 20z = LED indication (2A, 5A): /L

External alarm (10A, 20A): /APolycarbonate enclosure: /P

e.g. SF120DIN-40/A

PP x - y z PP x - y z /40 (40kA version)

x = Load current Amps: 10, 15y = No. of outlets: 2, 4, 6,

8RU (rack mount)z = Options:

Fax/Modem C2 pair Fax/Modem C2IEC outlets IRFI RF type FTV TVRJ45 RJBritish outlets (13A) BS

e.g. PP10-2C

Final Circuit / Equipment

Plug-in

Suitable for the protection of circuits up to 20A, the SSP range hasbeen engineered to provide economical protection for low current circuits. Their compact design makes them an ideal choice for spacerestricted applications.

Technical Information Sheet: SSP120DIN

Simply plugs into a standard GPO. Additional protection options includeFAX/modem (RJ12), RJ45, F type and TV. An RFI filter option is available. Optional wall mount brackets are available on request.

Technical Information Sheet: PP10-2

SSP120DIN /xx = External alarm: /Ae.g. SSP120DIN

Note: Standard products are rated for a nominal system voltage of 220/380to 240/415. Alternative voltage ratings are available upon request.e.g. SF105DIN/30V

7

All ModeProtection


RedundantSegments


ThermalSensing


LED StatusDisplay

ExternalAlarm

DIN 43880Compliant

Safe MetalEnclosure

COAX

IAL

PROT

ECTI

ON


RF Feeders up to 2GHzA gas discharge tube surge protector capable of passing RF signalsfrom DC up to 2GHz (limited by connector type). Custom design services available for all RF applications.N Type female / female protectors are suitable for bulkhead mounting.

Technical Information Sheet: CB12-90

C x y - z /xxx = Connector type:

BNC B7/16DIN DF Type FN Type NUHF UTNC T

y = Gender of connectors:Male/female 12Female/female 22

z = Gas arrester voltage: 90, 230,350, 600, 1000

xx = Mounting bracket: /be.g. CN22-90

RF Feeders up to 3GHzCapable of passing RF signals from DC up to 3GHz. Superior designand construction ensures unsurpassed RF performance. This modelfeatures a replaceable gas discharge tube. N type female / female protectors are suitable for bulkhead mounting.

Technical Information Sheet: CN12-90/3G

C N x - y /3Gx = Gender of Connectors:

Male/female 12Female/female 22

y = Gas arrester voltage: 90, 230, 350, 600, 1000

e.g. CN22-90/3G

RF Feeders - Tuned StubTuned stub protectors employ quarter-wavelength short circuit stub technology. Suitable for narrow bandwidth applications where no DCvoltage is injected. RF power and surge rating are limited by thecables and connectors only.

Technical Information Sheet: CN12-STUB

C x y - STUB /zx = Connector type:

7/16DIN DN Type N


z = Centre frequency in MHzi.e. 900MHz

e.g. CN12-STUB/900

RF Feeders - High Power Applications include MF, HF and VHF transmitters to 50kW. A sparkgap arrester and optical sensor are used to detect the arc. On detection the transmitter is shut down momentarily to ensure the arc extinguishes.

Technical Information Sheet: C158-EO

C x - EOx = Flange size:

7/8" EIA 781 5/8" EIA 1583 1/8" EIA 318

e.g. C158-EO

8

Note: Alternative connector types are available on request.

TELE

PHO

NE

PROT

ECTI

ON

KRONE-LSA® MDF - 1 Pair

The Novaris KP1 provides protection for KRONE-LSA® termination systems. Suitable for all twisted pair telecommunication services.

Technical Information Sheet: KP1


KP1 - xx = Service: PSTN, ISDN, DSLe.g. KP1-PSTN

KRONE-LSA® MDF - 10 Pair The Novaris KP10 provides protection for KRONE-LSA® terminationsystems. Suitable for all twisted pair telecommunication services, protection is provided for 10 circuits in one convenient unit.

Technical Information Sheet: KP10

KP10 - xx = Service: PSTN, ISDN, DSLe.g. KP10-PSTN

KRONE HIGHBAND® MDF

The Novaris KP10-HB series provides protection for KRONE HIGHBAND®cabling systems. Versions are available in 8 and 10 pair configuration.

Technical Information Sheet: KP10-HB

KP x - HB /yx = Circuits protected: 8, 10y = Service: PSTN, ISDN, DSL e.g. KP10-HB/PSTN

SL x DIN - y x = Number of pairs: 1, 2, 4 y = Service: PSTN, ISDN, DSLe.g. SL2DIN-PSTN

Modular Plug - 1 Pair

Hardwired

Provides protection for twisted pair telecommunication services suitable for telephones, FAX, dial-up, ISDN and xDSL modems.

Technical Information Sheet: RJ12-PSTN

High energy multistage transient protection for highly exposed circuits.

Technical Information Sheet: SL1DIN-7v5

RJ x - yx = Socket type:

RJ12 12RJ45 45

y = Service: PSTN, ISDN, DSL e.g. RJ12-PSTN

Note: KRONE-LSA and KRONE HIGHBAND are trademarks of KRONE GmbH, Germany.

9

All ModeProtection


RedundantSegments


ThermalSensing


LED StatusDisplay

ExternalAlarm

DIN 43880Compliant

Safe MetalEnclosure

LAN

& C

CTV

PROT

ECTI

ON


RJ45 - Terminal Novaris RJ45 terminal protectors are compliant with 100BaseT, 1000BaseT (gigabit Ethernet), CAT5, CAT5e and CAT6 requirements.

Technical Information Sheet:RJ45-CAT5

RJ45 - CAT xx = 100BaseT and CAT5: 5

1000BaseT,CAT5e and CAT6: 6

e.g. RJ45-CAT5

RJ45 - SwitchNovaris RJ45 switch protectors are compliant with 100BaseT, 1000BaseT (gigabit Ethernet), CAT5, CAT5e and CAT6requirements. (Standard models provide 8, 16 or 24 port).

Technical Information Sheet: RJ45-SWITCH

RJ45 - x CAT yx = Number of ports: 8, 16, 24y = 100BaseT and CAT5: 5

1000BaseT,CAT5e and CAT6: 6

e.g. RJ45-8CAT5

USBThe Novaris SL-USB provides protection for equipment connected toUSB ports. Compliant with USB1 and USB2 standards.

Technical Information Sheet: SL-USB

SL-USB

Coaxial LAN and CCTVNovaris Coaxial LAN and CCTV protectors are suited to thin Ethernet,thick Ethernet as well as security and CCTV applications.

Technical Information Sheet: CLB12-10

CL x y - zx = Connector type:

BNC BN Type NUHF UF Type FTNC T


z = Clamping voltage: 10 (Alternative clamping voltages available on request)

e.g. CLB12-10

SF102DIN-CLBPower voltage: 24V Coaxial voltage: 10V(Alternative power and signal clamping voltages available on request)

e.g. SF102DIN-CLB

CCTV - Power and SignalProtection for both power and signal is provided in one compact andeconomical DIN compliant package.

Technical Information Sheet: SF102DIN-CLB

10

PRO

CESS

CO

NTR

OL

PROT

ECTI

ON

Signal Line Protection

Multistage transient protection for control and automation signallinglines. Ideal for the protection of PLC's, fire and security systems and SCADA equipment.

Refer to Table 7 on page 20 for product selection.

Technical Information Sheet: SL1DIN-7v5


Serial Port

Provides protection for serial protocol systems in RS232 and RS485applications, housed in a headshell enclosure.

Technical Information Sheet: RS232-9

RS x - yx = Signalling protocol (RS): 232,

485y = Pin configuration: 9, 25 e.g. RS232-25

SL12 - x /y x = Clamping voltage: 7v5 (7.5),

18, 36, 68, 200(Alternative clamping voltages available on request)

y = 2Amps: /2AHigh frequency: /HFIsolated earth: /I

e.g. SL12-36/2A

Hazardous Location Signal Protector

Multiline Protector

Specially engineered to protect process control transmitters. SLx-NPTprotectors comply with AS2380.1-1989, AS2380.7-1987and certified to Ex d ia IIC T4. Installation does not effect operation or calibration of the instrument.

Technical Information Sheet: SL36-NPT

Protection for up to 12 signal lines. Typical applications include processcontrol, telemetry, PLC, and irrigation systems.

Technical Information Sheet: SL12-7v5

SLx - yx = Clamping voltage: 7v5 (7.5),

18, 36, 68, 200y = Thread:

NPT 3/4” NPT(Other thread types available on request)

e.g. SL36-NPT

11

SL x DIN - y /zx = No of pairs: 1, 2, 4y = Clamping voltage: 7v5 (7.5),

18, 36, 68, 200(Alternative clamping voltages available on request) Signalling Protocol:RS485 485Data Highway DH

z = 2Amps: /2AHigh frequency: /HFIsolated earth: /I

e.g. SL1DIN-36

Loadcell

The Novaris SL6-LCP provides protection for both 4-wire and 6-wireloadcells as well as the protection of the measuring instrument. The SL6-LCP is contained within an IP65 enclosure with suitablyrated cable glands. Installation of the SL6-LCP does not effect weighbridge calibration.

Technical Information Sheet: SL6-LCP

SL6-LCP

All ModeProtection


RedundantSegments


ThermalSensing


LED StatusDisplay

ExternalAlarm

DIN 43880Compliant

Safe MetalEnclosure

SPEC

IAL

PRO

DU

CTS


Earth Clamp Earth clamps provide a means to electrically clamp different earthingsystems during disturbances. Applications include computer rooms,defence and gas pipeline insulated joints.

Technical Information Sheet: EC20

EC x - yx = Surge rating: 20, 100y = DC sparkover voltage: 90, 230,

350, 600, 1000e.g. EC20-350

Cable Bonding KitUsed to bond the sheaths of coaxial feeders and wave guides on communication towers and at cable entry points.

Technical Information Sheet: EKIT-1

EKIT - x x = Cable size:

1/2" Heliax 17/8" Heliax 21 5/8" Heliax 3

e.g. EKIT-2

12

SPEC

IAL

PRO

DU

CTS

Surge Counter

The TSC1-x can count direct lightning strikes and transient events.It may be placed on the down conductor of a building or tower or in the earth return conductor of a surge diverter or filter.

Technical Information Sheet: TSC1

Surge Counter and Earth ClampThe Novaris TSC1-DIN/EC is connected between separate earthingsystems or between neutral and earth in non-MEN systems. This unit has dual functionality both as an earth clamp and transient surge counter.

Technical Information Sheet: TSC1

TSC1-DIN/EC


TSC1 - xx = DIN rail version: DIN e.g. TSC1

SPT-1 xx = Tester configuration:

KP1 and GDT only ABanana plugs B

e.g. SPT-1B

Overvoltage Relay

Surge Protection Tester

The Novaris OVR protects against sustained fluctuations in the supplyvoltage. An OVR in conjunction with a Novaris surge filter or diverterprovides the ultimate level of protection for your application.

Technical Information Sheet: OVR

The Novaris SPT-1 is a compact, easy-to-use surge protector tester.The SPT-1A has been designed to test the Novaris KP1 and gas discharge tube inserts. The SPT-1B includes banana sockets which can be used with test leads to test virtually any surge protection device.

Technical Information Sheet: SPT

OVR xx = Number of phases: 1, 3e.g. OVR3

13

Lightning Protection Standards

Most international lightning protection standards specify voltage

and current waveforms that can model both direct and

indirect lightning strikes. These waveforms when applied

in accordance with the standards can be used to accurately

determine the performance of surge protection devices.

Let through voltage or residual voltage is probably the most

important performance parameter, yet so little attention is

paid to it that many specifications fail to even mention it.

It is generally assumed that if a surge protector of a specified

surge rating is installed its performance will automatically

be satisfactory. This is simply not true. Let through voltage

depends upon product type, its design and the method of

installation.

Testing Facilities

Novaris maintains a test laboratory able to generate

internationally recognised test waveforms. Novaris can

provide certified test results for every product in its range.

For further explanation of these waveforms see

the Novaris ‘Technical Handbook’.

Lightning Protection Standards & Testing

Figure 1. Let through voltage of SD3-200. Applied 6kV 1.2/50us, 3kA 8/20us impulse in accordancewith IEEE C62.41.2-2002, BS6651-1999 and AS1768-2004.

Figure 2. Let through voltage of SF363-200. Applied 6kV 1.2/50us, 3kA 8/20us impulse in accordancewith IEEE C62.41.2-2002, BS6651-1999 and AS1768-2004.

Figure 3. Let through voltage of SL1DIN-36.Applied 5kV 10/700us impulse in accordance with CCITT IX K17, BS6651-1999 and AS4117-1999.

14

Surge Ratings – what do they mean?

When selecting a power line surge protector one important aspect to consider

is the device’s surge rating, also referred to as maximum surge current capacity,

surge withstand etc. This specification is frequently misunderstood.

The most common surge protection component is the metal oxide varistor

or MOV. MOVs are rated for 8/20us impulse current versus number of

impulses over their lifetime. The ratings of a 40mm MOV (as used extensively

throughout the Novaris range) is summarised in Table 3.

To achieve a long working life a MOV based surge diverter should have a surge

rating greater than the maximum surge it is expected to experience over its

lifetime. Table 4 summaries Novaris’ recommended surge ratings for MOV

based surge protectors.

Surge Rating Per Mode or Surge Rating Per Two Conductors

A mode is any combination of two conductors. In the all mode surge diverter

shown in Figure 4 each MOV is rated at 40kA. The Novaris preferred method

of specifying surge ratings is per mode. The surge diverter in Figure 4 has a

surge rating of 40kA per mode.

Surge Rating Per Phase

Surge rating per phase is the sum of the surge ratings of the components

connected to a particular phase. The surge diverter in Figure 4 has a

surge rating of 80kA per phase.

Total Surge Rating to Earth

The total surge rating to earth is the sum of the surge ratings of all of the

components connected to earth. The surge diverter in Figure 4 has a

surge rating of 160kA total to earth.

Total Surge Rating or Surge Aggregate

The total surge rating is the sum of the surge ratings of all of the components

within the surge protector. The surge diverter in Figure 4 has a 280kA total surge

aggregate.

Take care when selecting and comparing surge protectors.

Ensure that the specifications are clear and properly understood.

Surge Ratings

MSB 160kA

DB 40kA

Equipment Level 8kA

Figure 4.Three phase all mode surge diverter (40kA MOVs).

Table 4.Recommended minimum surge ratingsfor MOV based surge protectors.

Table 3.Pulse life of a 40mm MOV.

1 x 40kA

10 x 15kA

100 x 5kA

1,000 x 2kA

10,000 x 500A

100,000 x 200A

15

Effective surge protection is highly dependant upon installation practices. All Novaris products are supplied with

detailed installation instructions to ensure they are installed correctly. The following diagrams show examples of

power line surge diverter and surge filter installations.

For further details see individual installation instructions.

Surge Diverter – Main Switchboard (Figure 5)

• Install protection

- Downstream of the main switch.

- Upstream of all equipment including earth leakage devices

where possible.

- Protect with 63A HRC fuses or circuit breaker.

- Keep lead lengths as short as possible.

• MEN systems:

Install single mode (L-N) protection as close to the MEN

link as possible.

• Non-MEN systems:

Install all mode (L-N, L-E, N-E) protection.

Installation

Figure 5. Surge Diverter - Main Switchboard.

Figure 6. Surge Filter – Distribution Board.

Surge Filter – Distribution Board (Figure 6)

• Install all mode protection:

- Downstream of main switch.

- Upstream of all equipment, including earth leakage devices where possible.

- Protect with HRC fuses or circuit breaker,

with current rating less than or equal to the load current rating of the filter.

- Keep output cables away from input cables.

16

Installation

Figure 7. Surge Diverter – Distribution Board.

Figure 8.

Surge Filter - Final Circuit/Equipment.

Surge Diverter – Distribution Board (Figure 7)


- Downstream of main switch.

- Upstream of all equipment, including earth leakage devices where possible.

- Protect with 32A HRC fuses or circuit breakers.

- Keep lead lengths as short as possible.

Surge Filter – Final Circuit / Equipment (Figure 8)


- Downstream of fuses or circuit breaker with current rating

less than or equal to the load current rating of the filter.

- As close to the equipment as possible.

- Keep output cables away from input cables.

17

18

International Power Distribution

Table 5. Single Phase Product Selection Guide.

Power Line Product Selection Guide

Single Phase

Novaris can provide surge protection for most known wiring systems throughout the world.

The following provides a guide to assist in selection of the correct Novaris product.

For special applications please contact Novaris for advice.

International Power Distribution

19

Table 6. Three Phase Product Selection Guide.

Power Line Product Selection Guide

Three Phase

Signal type Product0-5V SL1DIN-7V50-10V SL1DIN-180-20V SL1DIN-3610V +/- SL1DIN-180-20mA SL1DIN-364-20mA SL1DIN-3610Base2 CLB12-1010Base5 CLN12-10100BaseT RJ45-CAT5, RJ45-xCAT5, RJ45-CAT6, RJ45-xCAT61000BaseT RJ45-CAT6, RJ45-xCAT6CAN - high speed SL1DIN-7V5/HFCAN - low speed SL1DIN-7V5CCTV CLB12-10Cheaper-net CLB12-10 ,CLN12-10Control-net CLB12-10Data Highway SL1DIN-18/HFData Highway Plus SL1DIN-18/HFDevicenet (signal pair) SL1DIN-7V5Dupline (signal pair) SL1DIN-7V5FIP Bus SL1DIN-485Foundation Fieldbus SL1DIN-36/2AHART SL1DIN-36Interbus SL1DIN-485ISDN SL1DIN-PSTN, KP1, KP10, RJ12-PSTN, RJ45-PSTNLoad cells SL6-LCPP-Net SL1DIN-485Process Bus (P-Bus) SL1DIN-485Profibus DP SL1DIN-485Profibus FMS SL1DIN-485Profibus PA SL1DIN-36/2APSTN SL1DIN-PSTN, KP1, KP10, RJ12-PSTN, RJ45-PSTNRS232 SL1DIN-36, RS232-9, RS232-25RS422 SL2DIN-485, RS485-9, RS485-25RS423 SL2DIN-485, RS485-9, RS485-25RS485 SL1DIN-485, RS485-9, RS485-25V.10 SL2DIN-485, RS485-9, RS485-25V.11 SL2DIN-485, RS485-9, RS485-25V.24 SL1DIN-36, RS232-9, RS232-25V.35 SL1DIN-485WorldFIP SL1DIN-36/2AX.21 SL1DIN-36, RS232-9, RS232-25xDSL SL1DIN-PSTN, KP1, KP10, RJ12-PSTN, RJ45-PSTN

Signalling Protocols

Table 7 outlines some of the most common signalling protocols along with the Novaris surge protection product

best suited to your application. For other signalling protocols please contact Novaris to discuss your protection

requirements.

20

Table 7. Signalling Protocols.

structural lightning protection and earthing systems a ... kit/sk20/product handb… · novaris...

Documents