GB/T 37808-2019 Design specification for conventional power supply system in fully-mechanized mining and top coal caving mining face

GB/T 8286-2017 Mining flameproof movable substations GB/T 30844.1-2014 Variable-frequency drive of 1 kV and below—Part 1:Technical conditions AQ 1023 GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.1-2010 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres—Part 2:Flameproof enclosure “d” GB 3836.2-2010 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures "d" GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB 5590-1985 Mining type flameproof electric magnetic starters GB/T 5590-2008 Low voltage explosion protection electromagnetic starter for mining GB/T 5590-2024 Low voltage explosion protection electromagnetic starter for mining GB 12972.1-1991 Flexible rubber-sheathed cables for mining purposes—Part 1:General GB/T 12972.1-2008 Flexible rubber-sheathed cables for mining purposes—Part 1:General requirements GB 14285-1993 Technical code for relaying protection and security automatic equipment GB/T 14285-2006 Technical code for relaying protection and security automatic equipment GB/T 14285-2023 Technical code for relaying protection and security automatic equipment GB/T 14549-1993 Quality of electric energy supply—Harmonics in public supply network MT/T 84-1997 Shearer—Types and basic parameters MT/T 661-1997 General technical condition for electrical apparatus used underground mine MT/T 661-2011 Common Technical Requirements for Electrical Equipment for Coal Mine Underground Workings MT/T 871-2011 MT/T 1099-2009 Mining frequency converter speed regulating device MT 871-2000 GB/T 50417-2017 Code for design of electric power supply of under the coal mine