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herdian
16-11-2007, 05:01 AM
Please explain what is dIIB T4 or eIIB T4 as standardization of explosion proof fan motor ?

frank
16-11-2007, 01:08 PM
Do any of the links here help?

http://en.wikipedia.org/wiki/Intrinsically_safe

COOLSUMMER
18-05-2010, 09:03 AM
dear herdian
d and e stand for type of protection(flameproof,d or increased saftey,e) ,II stand for use on the ground,B stand for gas group (ethylene),and T4 stand for temperature class(maximum temperature 135 centigrade .
regards

Magoo
19-05-2010, 04:13 AM
If specified explosion proof the purchase price will be times five over and above the regular price.