译：GB 1985-2004 High-voltage alternating-current disconnectors and earthing switches

译：GB 3836.5-2004 Electrical apparatus for explosive gas atmosphere—Part 5:Pressurized enclosures"p"

译：GB/T 19518.2-2004 Electrical apparatus for explosive gas atmospheres—Electrical resistance trace heating—Part 2:Application guide for design, installation and maintenance

译：GB/T 19520.10-2004 Mechanical structures for electronic equipment—Dimensions of mechanical structures of the 482.6mm(19in)series—Part 5-105:Subracks and associated plug-in units—Alignment and/or earth pin

译：GB/T 10066.4-2004 Test methods for electro heat installations—Part 4:Indirect resistances furnaces

译：GB/T 16895.3-2004 Electrical installations of buildings—Part 5-54:Selection and erection of electrical equipment-Earthing arrangements, protective conductors and protective bonding conductors

译：GB 3836.6-2004 Electrical apparatus for explosive gas atmospheres—Part 6:Oil-immersion"o"

译：GB 3836.7-2004 Electrical apparatus for explosive gas atmospheres—Part 7:Powder filling"q"

译：GB/T 19519-2004 Composite insulators for a.c. overhead lines with a nominal voltage greater than 1000V—Definitions, test methods and acceptance criteria

译：GB/T 17478-2004 Low-voltage power supply devices,d.c.output—Performance characteristics