GUIDE TO EXPLOSION PROTECTION

Ex-Agencija’s services:Ex-equipment testing and determination of the explosive properties of flammable mediaEx-equipment certificationTechnical supervision of plants with hazardous areaTechnical supervision of the quality management in production, repair & overhaul, inspection & maintenance and installation of Ex-equipmentPersonnel education (Ex-Training) & publishing (Ex-Bilten)Management Systems Certification (ISO 9001; ISO 14001, ...)

Ex-AgencijaAGENCY FOR EXPLOSIVE ATMOSPHERE Industrijska 25, 10431 Sveta Nedelja - Croatia

Phone: + 385 1 3667 260; + 385 1 3667 157; Fax: + 385 1 3667 262e-mail: ex-agencija@ex-agencija.hr

www.ex-agencija.hr

Ex-PROTECTION CONCEPTS

CONFORMITY ASSESMENT

PRODUCTION - according to Directive 94/9/EC (ATEX95) / Directive 2014/34/EU (ATEX 114)

M A R K E T

Equipment category M1, 1 and Protective systems

Annex III Annex III Annex VIII Annex VIII

Annex IV Annex VII Communicate a technical documentation to a Notified Body

Annex VI

Annex IX Annex IX

Annex V

Electrical equipment category 2 and M2 and internal combustion engines

Conformity assesment annexesIII - Type examination (B)IV - Production quality assurance (D)V - Product verification (F)VI - Conformity to type (C)

Non-electrical equipment category 2

Equipment category 3

VII - Product quality assurance (E)VIII - Internal control of production (A)IX - Unit verification (G)

TECHNICAL SUPERVISION

Regulations of minimum safety requirements and worker’s health protection, and technical supervision of plants, equipment, installations

and apparatus in hazardous areas (HR OJ No. 39/06, 106/07)

TECHNICAL SUPERVISION by authorized body (Ex-Agencija) include

EU Directive 1999/92/EC (ATEX 137)

PLANTS

Area classification (HRN EN 60079-10-1/ -2)Electrical power equipment (HRN EN 60079-0)Electrical instrumentation equipment (HRN EN 60079-0)Electrical installations of power equipment (HRN EN 60079-14)Electrical installations of instrumentation equipment (HRN EN 60079-14)Non-electrical equipment and installations (HRN EN 13463-1)and technical report is issued.

ACTIVITIES

Repair (HRN EN 60079-19)Installation (HRN EN 60079-14)Maintenance (HRN EN 60079-17)of Ex-equipment and technical report is issued.

CATEGORIES / PROTECTION LEVELS / ZONES

TEMPERATURE CLASS / GROUP IP - PROTECTION

Areas Categories (ATEX) EPL (IEC) Zones Explosive atmosphere

Mining - IM1 Ma

/ /M2 Mb

Other than mines - II

1G, 1D Ga, Da 0, 20 Continuosly, long periods or frequently

2G, 2D Gb, Db 1, 21 Likely to occur, occasionally

3G, 3D Gc, Dc 2, 22 Not likely to occur, short period only

EPL – Equipment Protection Level

Degrees of protection IP-code

First numeral

Second numeral

Description of protection

1 -Protection against solid objects >50 mm

(hand protection)

2 -Protection against solid objects >12,5 mm

(finger protection)

3 - Protection against solid objects >2,5 mm

4 - Protection against solid objects >1 mm

5 - Dust protected

6 - Dust tight

- 1 Protection against vertically dripping water

- 2Protection against dripping water

(15° tilted)

- 3Protection against spraying water

(angle up to 60°)

- 4Protection against splashing water from

any direction

- 5 Protection against water jets

- 6 Protection against powerful water jets

- 7 Temporary immersion (0,15m/1m; 30 min)

- 8 Continuous immersion depth >1 m

- 9 High pressure water test

Temperature Class

Maximum Surface Temperature

T1 450 °C

T2 300 °C

T3 200 °C

T4 135 °C

T5 100 °C

T6 85 °C

Dust Group

IIIA Combustible flyings

IIIB Non-conductive dust

IIIC Conductive dust

Gas Group Representative Gas

I Methane

IIA Propane

IIB Ethylene

IIC Hydrogen, Acetylene

Type of protection Standard Concept SymbolCategory

(CENELEC)EPL

(IEC)Types of protection of electrical equipment for explosive atmosphere of flammable gases, vapours, mists or dusts

(HRN/EN/IEC 60079-0)

Flameproof HRN/EN/IEC 60079-1 dM2, 2G

M1, 1G, 3G Mb, Gb

Ma, Ga, Gc

Pressurized HRN/EN/IEC 60079-2 px, py, pz M2, 2G, 3G

2D, 3D Mb, Gb, Gc

Db, Dc

Powder filling HRN/EN/IEC 60079-5 q M2, 2G Mb, Gb

Oil-immersion HRN/EN/IEC 60079-6 o M2, 2G Mb, Gb

Increased safety HRN/EN/IEC 60079-7 eM2, 2G3G (*)

Mb, GbGc (*)

Intrinsic safety HRN/EN/IEC 60079-11 i M1, M2, 1G, 2G, 3G

1D, 2D, 3DMa, Mb, Ga, Gb, Gc

Da, Db, Dc

Type of protection ‘n’ HRN/EN/IEC 60079-15

nA

3G GcnC

nR

Encapsulation HRN/EN/IEC 60079-18 m M1, M2, 1G, 2G, 3G

1D, 2D, 3DMa, Mb, Ga, Gb, Gc

Da, Db, Dc

Protection byenclosures

HRN/EN/IEC 60079-31 t 1D, 2D, 3D Da, Db, Dc

Special protection IEC 60079-33 sM1, M2, 1G, 2G, 3G

1D, 2D, 3DMa, Mb, Ga, Gb, Gc

Da, Db, Dc

Type of protection Standard Concept SymbolCategory

(CEN)EPL

(IEC)Types of protection of non-electrical equipment for explosive atmosphere of flammable gases, vapours, mists or dusts

(HRN/EN 13463-1/ IEC 80079-36)

Flow restricting HRN/EN 13463-2 fr 3G, 3D /

Flameproof HRN/EN 13463-3 d M2, 2G /

Constructional safetyHRN/EN 13463-5

IEC 80079-37c

M2,1G, 2G, 3G1D, 2D, 3D

Mb, Ga, Gb, GcDa, Db, Dc

Control of ignition sourcesHRN/EN 13463-6

IEC 80079-37b

M2, 1G, 2G, 3G1D, 2D, 3D

Mb, Ga, Gb, GcDa, Db, Dc

Liquid immersionHRN/EN 13463-8

IEC 80079-37k

M1, M2, 1G, 2G, 3G1D, 2D, 3D

Ma, Mb, Ga, Gb, GcDa, Db, Dc

Pressurized HRN/EN/IEC 60079-2 pM2, 2G, 2D

3G, 3D /

(*) Extension of scope in the next edition of standard

45011 - HAA

3115/07

17025 - HAA

1120/07

Ex-MARKS

ATEX Marks

Ex-s

ymbo

l

Gro

up

Cat

egor

y

Dus

t -

Flam

mab

le -

Gas

Dus

t -

Flam

mab

le -

Gas

Prot

ecti

on c

once

pt

Dus

t G

roup

Gas

Gro

up

Tem

pera

ture

Cla

ss

Max

. sur

face

tem

pera

ture

II 2 G

II 2 D

Ex db mb IIB T5

Ex tb IIIC T90°C

Gb

Db

Marking according to standard EPL (IEC)

Ex-EQUIPMENT MARKING

Logo, manufacturer’s name and address

Conformity symbol

Type: ABC 825

Un=230 Vac Pmax= 50W f= 50 Hz Ta=-35°C / +50°C

Ser. No.: 128-5/09Notified body (ExNB) identification number if involved in production control

Standard ambient temperature (-20°C/+40°C) unless stated on labe

ExNB or IECEx CB acronym and certificate number

Warning markings

Product identification

Ratings

Use cable suitable for Ts >90°C Use screws with yield stress >800N/mm2

Symbol of explosion protection

Marking of group, category and

applied protection concept

N&N d.o.o. 10000 ZagrebSplitska, HR

II 2(1)G Ex db eb [iaGa] IIC T5 GbII 2(1)D Ex tb [iaDa] IIIB T95oC Db

2465

N

EXA 15 ATEX1234XIECEx EXA 15.1234X