Explosion-proof mark refers to the mark used to describe the explosion-proof grade, temperature group, explosion-proof type and applicable area of explosion-proof electrical equipment. Explosion-proof electrical equipment In the case of dust and flammable mixed gas, there shall be no electric spark leakage of motor and electrical equipment.
Explosion-proof electrical equipment According to the requirements of GB 3836 standard, the explosion-proof signs of explosion-proof electrical equipment include:
Explosion-proof type+equipment category+(gas group)+temperature group
According to the explosion-proof measures adopted, explosion-proof electrical equipment can be divided into explosion-proof type, increased safety type, intrinsically safe type, positive pressure type, oil immersion type, sand filling type, pouring sealing type, N type, special type and dust explosion-proof type.