Basic Of ATEX_Ex_Regulation_SCHUCH.pptx_GTE

Prof. Dr.-Ing. habil. Bruno WeisAdolf Schuch GmbH, Worms

Technical University, Berlin

● Zones

● Equipment-groups

● Categories

EU-regulation (ATEX)

Gases, vapours and mists

● Zone 0

● Zone 1

● Zone 2

Zone 0

A place in which an explosive atmosphere …..

is present continuously or for long periods or frequently.

Zone 1


is likely to occur in normal operation occasionally.

Zone 2


is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

Zone 0 / 1 / 2

Zone 0 / 1 / 2

Combustible dusts

● Zone 20

● Zone 21

● Zone 22

Zone 20


is present continuously, or for long periods or frequently.

Zone 21

A place in which an explosive

atmosphere …..

is likely to occur in normal

operation occasionally.

Zone 22

A place in which an explosive

atmosphere …..

is not likely to occur in normal

operation but, if it does occur, will

persist for a short period only.

Equipment-group

… intended for use in underground parts of mines … endangered by firedamp and for combustible dust.

Equipment-group II

… intended for use in areas in which explosive atmospheres are caused by mixtures of air and gases, vapours or mists or by air/dust.

Equipment-group I

Combustible atmosphere

G = Gas

D = Dust

Categories

Category 1 G - Zone 0Category 1 D - Zone 20



Category Zone Certificate

1 G, D 0, 20Certificate of conformity or type test certificate with explicit approval

2 G, D 1, 21Certificate of conformity or type test certificate

3 G, D 2, 22Manufacturer certificate in consideration of the general requirements of the standard 94/9/EG EN 50281

Categories

Ex-luminaire for Zone 1/21

Labelling

According EU-Regulation

Equipment group II – explpsive atmosphere(Equipment group I – gasy mines)

Category 2 (Zone 1 / Zone 21)

G = gas D = dust

max. Surface Temperature of the luminaire (+80° C)

Labelling for Zone 1/21

According to European Standard

„e“ increased safety„d“ flameproof„q“ sand filling

Explosion group (IIA, IIB, IIC)

Temperature class (T1 – T6)

Labelling for Zone 1/21


Labelling

According EU-Regulation

Equipment group II – explosive atmosphere(Equipment group I – gasy mines)

Category 3 (Zone 2 / Zone 22)

G = gas D = dust

max. Surface Temperature of the luminaire (+80° C)


According to European Standard

Explosion group (IIA, IIB, IIC)

Temperature class (T1 – T6)

„nA“ non sparking

„nC“ hermetically sealed

„nR“ restricted breathin


e 15242II 2 G EEx edq T4 PTB 97 ATEX 2224II 2 D T80° C

nD 161136 EVGII 3 G nA II T4 TÜV 00 ATEX 1541II 3 D T80° C

Zone 2 / 22

Zone 1 / 21 – Zone 2/22

T4 = 135° CAll temperatures in the luminaireare under 135° C

DustsT80° C = all temperatures on the outside surface of the luminiare are

below 80° C (where dust deposits can exist)

Gases, vapours, mists - dusts

Type of protection for luminaires

Zone 1 and Zone 21

"e" increased safety

"d" flameproof

„e“ and „d“

e 152 …

Zone 1 – Zone 21

1 x 18 W … 2 x 58 W

II 2 G EEx edq IIC T4

II 2 D T80° C

1 x 18 W … 4 x 58 W


II 2 D T80° C

Zone 1 – Zone 21

e 181/182…

1 x 18 W … 4 x 58 W

Zone 1 – Zone 21


II 2 D T80° C

e 191/192…

II 2 G EEx de IIC T2 – T4

II 2 D T140 – 270° C

max. 600 W HSEand 1000 W QT d 4000

Zone 1 – Zone 21

II 2 G EEx ed IIC T2 – T4II 2 D T150° C

e 2691 /nD 2691

Zone 1/21 – Zone 2/22

II 3 G EEx nAC IIC T2 – T4II 3 D T150° C

Incandescent lamp 25 – 100 W

II 2 G EEx ed IIC T3 – T4

II 2 D T145° C

e 8310Incandescent lamp 25 W – 60 W

Zone 1 – Zone 21

II 3 G EEx nA II T4

II 3 D T80° C (100° C with VVG)

nD 161… / 162…

Zone 2 – Zone 22

1 x 18 W … 2 x 58 W

nD 3084 - 86

Zone 2 – Zone 22

II 3 G E Ex nR II T2 / T3

II 3 D T130 – 170° C

400W High pressure discharge lamps

Zone 2 – Zone 22

nD 7573

II 3 G EEx nR II T2 – T4

II 3 D T130 – 220° C

400W High pressure discharge lamps

Documents

Basic Of ATEX_Ex_Regulation_SCHUCH.pptx_GTE