NB/T 10522.4-2021 Automatic waterproof door for mining—Part 4:Technical regulation for operation and maintenance

NB/T 10522.1-2021 Automatic waterproof door for mining—Part 1:Mechanical devices NB/T 10522.2-2021 Automatic waterproof door for mining—Part 2:Electro-hydraulic control system NB/T 10522.3-2021 Automatic waterproof door for mining—Part 3:Code for engineering design,construction and acceptance

GB/T 3766-2015 Hydraulic fluid power—General rules and safety requirements for systems and their components GB/T 14048.4-2020 Low-voltage switchgear and controlgear—Part 4-1:Contactors and motor-starters—Electromechanical contactors and motor-starters(Including motor protector) GB/T 150-2011(所有部分) 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 3836.4-2000 Electrical apparatus for explosive gas atmospheres—Part 4:Intrinsic safety“i” GB 3836.4-2010 Explosive atmospheres—Part 4:Equipment protection by intrinsic safety "i" GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” GB 3836.13-1997 Electrical apparatus for explosive gas atmospheres—Part 13:Repair and overhaul for apparatus used in explosive gas atmospheres GB 3836.13-2013 Explosive atmospheres—Part 13:Equipment repair,overhaul and reclamation GB/T 3836.13-2021 Explosive atmospheres—Part 13:Equipment repair,overhaul,reclamation and modification GB/T 9877-2008 Hydraulic fluid power—Guide specifications for designing rotary shaft lip type seals GB/T 9877.1-1988 Rotary shaft lip seals—Design criteria for standard applications—Part 1:rubber covered rotary shaft lip seals GB/T 9877.2-1988 Rotary shaft lip seals—Design criteria for standard applications—Part 2:metal cased rotary shaft lip seals GB/T 9877.3-1988 Rotary shaft lip seals—Design criteria for standard applications—Part 3:assembled rotary shaft lip seals MT/T 661-2011 Common Technical Requirements for Electrical Equipment for Coal Mine Underground Workings MT/T 1097-2008 Mining machinery and equipment maintenance technical specifications TSG R0004-2009 Supervision Regulation on Safety Technology for Stationary Pressure Vessel