Explosion-proof motors for ethanol and ethyl acetate?
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Explosion-proof motors for transporting ethanol and ethyl acetate? Can exdⅡBT4 be used? What does exdⅡBT4 mean? What explosion protection rating is appropriate? Thank you all
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In simple terms, the Ex marking indicates explosion protection; d denotes an explosion-proof type suitable for use in factories outside mining areas; C refers to the explosion protection category; T indicates the explosion temperature rating, with the subsequent numbers representing the ignition temperature level of that medium. It is recommended that the original poster take a look at GB50058-92, and then he will basically understand it.
Explosion-proof electrical equipment includes flameproof type (mark d), increased safety type (mark e), oil-filled type (mark o), sand-filled type (mark q), intrinsically safe type (mark i), positive pressure type (mark p), spark-free type (mark n), and special type (mark s) equipment. For example, dIIBT4 is an explosion-proof electrical device of the intrinsically safe type, Class IIB, Group T4. Different electrical equipment should be selected for environments with different hazard levels. For specific details, please refer to the relevant materials.
The poster may refer to the \"AQ 3003-2007 Safety Standards for Explosion Protection of Electrical Equipment in Hazardous Areas.\"