Atex Wall Chart Reduced.pdf 3h4l5g

“We specialize in IEC/ATEX/EX Electrical Equipment for use in Hazardous/Industrial Environments” Marking to Directive 94/9/EC (ATEX 95)

II 2 G D

0518

C ategory

Number of the notified body

G as (G )

Marking to IEC/EN Standard 60079-0 G as

Dus t (D)

G roup II E xplos ive atmos pheres (other than mines ) G roup I Mines s us ceptible to firedamp

Electrical apparatus for explosive gas atmospheres (Equipment II) EPL

Catagories (Directive 94/9/EC Annex I) C ategory 1

C ategory 1 compris es equipment des igned to be capable of functioning in conformity with the operational parameters es tablis hed by the manufacturer and ens uring a very high level of protection. E quipment in this category is intended for us e in areas in which explos ive atmos pheres caus ed by mixtures of air and gas es , vapours or mis t or by air/dus t mixtures are pres ent continuous ly, for long periods or frequently. E quipment in this category mus t ens ure the requis ite level of protection, even in the event of rare incidents relating to equipment, and is characterized by means of protection s uch that: – –

Gb

The means of protection relating to equipment in this category ens ure the requis ite level of protection, even in the event of frequently occuring dis turbances or equipment faults which normally have to be taken into . C ategory 3

C ategory 3 compris es equipment des igned to be functioning in conformity with the operational parameters es tablis hed by the manufacturer and ens uring normal level of protection. E quipment in this category is intended for us e in areas in which explos ive atmos pheres caus ed by gas es , vapours , mis ts , or air/dus t mixtures are unlikely to occur or, if they do s o only infrequently and for a s hort period only.

Gc

Gas Zone 0

A place in which an explos ive atmos phere cons is ting of a mixture with air of flammable s ubs tances in the form of gas or vapour is pres ent continuous ly or for long periods or frequently.

Zone 1

A place in which an explos ive atmos phere cons is ting of a mixture with air of flammable s ubs tances in the form of gas or vapour is likely to occur in normal operation occas ionally

Zone 2

A place in which an explos ive atmos phere cons is ting of a mixture with air of flammable s ubs tances in the form of gas or vapour is not likely to occur in normal operation, but if it does occur, will pers is t for a s hort period only (us ually no longer than 2 hours ).

Dust

Type of protection

60079-0

G eneral requirements

60079-11

ia

Intrins ic s afety

60079-18

ma

E ncaps ulation

60079-26

either, in the event of failure of one means of protection, at leas t an independent s econd means provides the requis ite level of protection, or the requis ite level of protection is as s ured in the event of two faults occuring independently of each other.

C ategory 2 compris es equipment des igned to be capable of functioning in conformity with the operational parameters es tablis hed by the manufacturer and of ens uring a high level of protection. E quipment in this category is intended for us e in areas in which explos ive atmos pheres caus ed by gas es , vapours , mis ts or air/dus t mixtures are likely to occur.

C ategory 2

Ga

IE C S tandards

E quipment with equipment protection level (E P L) G a

60079-28

op is

60079-1

d

Flameproof enclos ures

60079-2

p, px, py

P res s urized enclos ures

60079-5

q

P owder filling

60079-6

o

Oil immers ion

60079-7

e

Increas ed s afety

60079-11

ib

Intrins ic s afety

60079-18

mb

E ncaps ulation

60079-25

Intrins ically s afe s ys tems

60079-27

Fieldbus intrins ically s afe concept (FIS C O)

60079-28

op is op pr op s h

60079-11

ic

Intrins ic s afety

60079-18

mc

E ncaps ulation

60079-15

nA

Non s parking

60079-15

nR

R es tricted breathing enclos ure

60079-15

nL

Limited energy (only old edition)

60079-15

nC

E quipment producing operational s parks

60079-2

pz

P res s urized enclos ures

60079-28

op is op pr op s h

Zone 21

Zone 22

Area in which an explos ive atmos phere in the form of a cloud of combus tible dus t in air is pres ent continuous ly or for long periods or frequently. Area in which an explos ive atmos phere in the form of a cloud of combus tible dus t in air is likely to occur, occas ionally, in normal operation. Area in which an explos ive atmos phere in the form of a cloud of combus tible dus t in air is not likely to occur in normal operation, but if it does occur, will pers is t for a s hort period only.

P rotection of equipment and trans mis s ion s ys tems us ing optical radiation

P rotection of equipment and trans mis s ion s ys tems us ing optical radiation

Ex ed IIB T6 Gb Equipment groups (Gas)

Zone 20

P rotection of equipment and trans mis s ion s ys tems us ing optical radiation

Ignition Maximum Tempertemperature surface temperature ature of gas or for hot surfaces class vapour

IIA Aceton, ethane, B enzene, petrol, butane, propane, methane IIB

E thylene, town gas

IIC

Hydrogen, acetylene

T1 T2 T3 T4 T5 T6

> 450 > 300 > 200 > 135 > 100 > 85

°C °C °C °C °C °C

440 290 195 130 95 80

°C °C °C °C °C °C

Zone

Equipment Protection Level (EPL)

0

Ga

1

G b and G a

2

G c, G b and G a

Dust

Non-electrical equipment for use in potentially explosive atmospheres E urope

C ode

E N 13463-1

Electrical equipment for use in areas with combustible dust (Equipment group III)

Type of protec tion B as ic method and requirements

E N 13463-2

fr

P rotection by flow res tricting enclos ure

E N 13463-3

d

P rotection by flameproof enclos ure

E N 13463-5

c

P rotection by cons tructional s afety

E N 13463-6

b

P rotection by control of ignition s ource

E N 13463-7

p

E N 13463-8

k

EPL

IE C S tandards

Type of protec tion

60079-0

G eneral requirements

60079-31

ta

P rotection by enclos ure

60079-11

ia

P rotection by intrins ic s afety (iaD IE C 61241-11)

P rotection by pres s urized enclos ure

60079-18

ma

P rotection by encaps ulation

P rotection by liquid immers ion

60079-31

tb

P rotection by enclos ure

60079-11

ib

P rotection by intrins ic s afety (ibD IE C 61241-11)

60079-18

mb

P rotection by encaps ulation

61241-4

pD

Type of protection 'pD'

60079-31

tc

P rotection by enclos ure

60079-11

ic

P rotection by intrins ic s afety

60079-18

mc

P rotection by encaps ulation

61241-4

pD

Type of protection 'pD'

Da

Db

IP Degree of Protection IEC/EN 60529 Firs t numeral (agains t penetration of s olid foreign objects / prevention of acces s to hazardous parts )

S econd numeral (agains t penetration of water with harmful effects )

0

not protected

not protected

1

• 50.0 mm diameter / back of hand

vertically falling water drops

2

• 12.5 mm diameter / finger

water drops (enclos ure tilted 15°)

3

• 2.5 mm diameter / tool

s praying water

4

• 1.0 mm diameter / wire

s plas hing water

5

dus t-protected / wire

water jets

6

dus t-tight / wire

powerful water jets

7

temporary immers ion in water

8

continuous immers ion in water

E xample: IP 54 dus t-protected / protected agains t s plas hing water

Dc

Surface temperature max.

Ex tb IIIC T95 °C Db Ex tb IIIC T95 °C Equipment groups (Dust) IIIA fibres IIIB non-conductive dus t IIIC conductive dus t

Zone

Equipment Protection Level (EPL)

20

Da

21

Db and Da

22

Dc, Db and Da

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