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Motors and Generators
Motors
Motors for Hazardous Areas
Marking
Marking of Equipment in Hazardous Areas
1
CE-marking
ATEX, 94/9/EC Hazardous atmosphere Equipment
2
Identification of Notified body
0081 = LCIE, 0537 = VTT, 0722 = CESI, 0470 = NEMKO
3
European Commission mark for Ex-products
4
Equipment group
: Surface
Group I: Apparatus for coal mines susceptible to firedamp
Group II: Apparatus for explosive atmospheres other than mines, surface industries for gas
Group II is subdivided according to the severity of the environment IIA, IIB, IIC; IIC is the most demanding rating, a motor from one of the higher categories can also be used in a lower category environment
5
Equipment category
Category 1: Zone 0 and 20, continuous, no motors
Category 2: Zone 1 and 21, incidental presence
Category 3: Zone 2 and 22, accidental presence
6
G
= Gas or
D
= Dust
Additional marking:
7
Ex = Explosion protection marking according to IEC or ATEX based on new EN standard series
EEx = Explosion protection marking according to ATEX based on old EN standard series
8
Flameproof: Ex d or Ex de
Increased safety: Ex e
Non-sparking: Ex nA
9
Equipment group
: like in point 4
10
Subgroup of gas
A = Propane, B = Ethylene, C = Hydrogen, Acethylen
11
Temperature class
T1 = 450°C; T2 = 300°C; T3 = 200°C; T4 = 135°C; T5 = 100°C, T6 = 85°C
Last edited 2007-02-09
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