Standard ICS number:Electrical engineering>>Electrical equipment for special working conditions>>29.260.20 Electrical equipment for explosive atmospheres
Standard Classification Number:Electrical Engineering>>Low Voltage Electrical Appliances>>K35 Explosion-proof Electrical Appliances
JB 8739-1998 This standard is a revision of ZB K35 006-89 "Explosion-proof High-voltage Distribution Device for Mines". This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of explosion-proof high-voltage distribution devices for mines (hereinafter referred to as distribution devices). This standard applies to the design, manufacture and inspection of distribution devices with a rated voltage of up to 12kV and a rated frequency of 50Hz in three-phase AC neutral point non-directly grounded power supply systems. JB/T 8739-1998 Explosion-proof High-voltage Distribution Device for Mines JB/T8739-1998 Standard download decompression password: www.bzxz.net