permissible
surface temperature
of equipment °C
Ignition temperatures
of flammable substances
in °C
T1 450 450
T2 300 300 450
T3 200 300 200
T4 135 200 135
T5 100 100 135
T6 100
. 3
Equipment cat. 2
EC type examination
Documentation
of notified body
Internal production control
Documentation
of manufacturer
Electrical appliance
Engine with internal
combustion
Yes No
Basic safety and health requirements
Temperature class Max.177
The Lighting Handbook
Equipment Group including potential ignition source
Classification max. Equipment cat. surface temperatures in
electrical equipment Class 2
Equipment cat
