Is the lamp explosion-proof level high or three?
Type D can only reach Gb level. Your question is too vague to answer
I level is the mark of coal grade II, plant logo, logo mark of coal is higher than the factory.
Which is the highest level of explosion-proof intrinsically safe type, but not the safety lamp;Explosion proof lamp ExdIICT4, Ga explosion-proof level is relatively high;The coal mine explosion proof, explosion-proof symbol is: I, for explosive gas for ExdI flameproof or intrinsically safe type ExiaI. certification test is methane (CH4) with hydrogen (H2) acetylene (C2H2) explosion limit and explosion pressure is much smaller.Explosion proof factory is divided into gas explosion proof and dust explosion proof.Coal mine explosion-proof use in factories, explosion-proof requirements are different, different test methods, different scope of application.Where will you use the explosion proof lamp? What dangerous gases or dust do you have? Targeted response is better.
