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Kennzeichnung explosionsgeschützter Betriebsmittel

CE0081EXII2 G/DEExcIICT3
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1

To identify after ATEX 95 (CE communauté européenne) The supplier is been obliged to keep the European rules and regulations

2
Number of the official control department / named office
3
specific signature of explosion protection

 

terms and conditions in explosion endangered zones

Flammable materials

Temporally behaviour of flammable materials in Ex-zones

Classification of explosion endangered zones

Required marks of the applicable utilities

4 equipment group

5 category of equipment

Gas

Vapours

Existing constantly, on long term, often

Zone 0

II

1G

occur occasionally

Zone 1

II

2G or 1G

occur probably not, if yes only seldom or for short time

Zone 2

II

3G or 2G or 1G

Dusts

Constantly on long term, often

Zone 20

II

1D

occur occasionally

Zone 21

II

2D or 1D

occur probably not from turbulent dust, if yes only seldom or for short time

Zone 22

II

3D or 2D or 1D

Methane dust

 

Mining

I

M1

 

Mining

I

M2 or M1

Zone 0 is normally the internal of a tank; Zone 20 the internal of a silo)

 

6

Identification

E         Certification after CENELEC (electrical explosion prevention) on the basis of the European norm

Ex       explosion proof

 

7

Identification

Type of protection

For electrical equipment

For none electrical equipment

Identification

Type of protection

For electrical equipment

For none electrical equipment

b

Control of the Ignition source

 

X

m

Cast iron housing

X

 

c

Protection due to safety construction

 

X

nA

No transmission

N

 

d

Pressure resistant casting

X

X

nC

Utilities which transmit (approved protection)

X

 

e

High security

X

 

nL

Limited energy

X

 

fr

Protection due to vapour glogging casts

 

X

nP

Simplified over pressure casting

X

 

g

Self protection

 

X

nR

Vapour safe housing

 

 

k

Liquid casting

 

X

o

Oil casting

X

 

ia

Self protection for zone 0

X

 

p

Over pressure casting

X

X

ib

Self protection for zone 1

X

 

q

Sand casting

X

 

8

Gas groups

I          Methane

II         all gases

IIA      propane & similar

IIB      Ethylene & similar

IIC      hydrogen & Acetylene
9

Temperature classes (for electrical and mechanical utilities) maximum surface temperature

 

T1T2T3T4T5T6
450°C300°C200°C135°C100°C85°C