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Explosion-proof electrical equipment


7.3.23. Explosion-proof electrical equipment - electrical equipment in which structural measures are provided to eliminate or make difficult the possibility of igniting the surrounding explosive atmosphere due to the operation of this electrical equipment

Source: "Rules for the Design of Electrical Installations (PUE). Sixth Edition" (approved by the Main Technical Administration, State Energy Supervision of the Ministry of Energy of the USSR 05.10.1979) (revision dated 20.06.2003)

2.6. Explosion-proof electrical equipment (Ex-equipment) is divided into groups:

I - mining explosion-proof electrical equipment, intended for use in underground workings of mines and quarries and their above-ground structures hazardous due to mine gas and/or flammable dust;

II - explosion-proof electrical equipment for indoor and outdoor installation, intended for potentially explosive environments, excluding underground workings of mines and quarries and their above-ground structures hazardous due to mine gas and/or flammable dust

Source: Order of the Russian State Standard #28, Order of the Russian State Industrial Safety Supervision #10 dated 19.03.2003 "On Approval of Rules for Certification of Electrical Equipment for Explosive Environments" (Registered by the Ministry of Justice of Russia on 23.04.2003 № 4440)

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