NB/T 11631-2024 Explosion proof dual power switching switch used for auxiliary fans used for mine

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products—Test Db:Damp heat, cyclic GB/T 2423.4-2008 Environmental testing for electric and electronic products—Part 2:Test method—Test Db:Damp heat,cyclic(12 h+12 h cycle) GB/T 2900.18-1992 Electrotechnical terminology Low voltage apparatus GB/T 2900.18-2008 Electrotechnical terminology—Low voltage apparatus GB/T 2900.35-1998 Electrotechnical terminology electrical apparatus for explosive atmospheres GB/T 2900.35-2008 Electrotechnical terminology Equipment for explosive atmospheres GB/T 2900.35-2023 Electrotechnical terminology—Explosive atmospheres GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB 3836.3-2000 Electrical apparatus for explosive gas atmospheres—Part 3:Increased safety “e” GB 3836.3-2010 Explosive atmospheres—Part 3:Equipment protection by increased safety "e" GB/T 3836.3-2021 Explosive atmospheres—Part 3:Equipment protection by increased safety “e” GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” GB/T 4205-2003 Man-machine interface(MMI)—Actuating principles GB/T 4205-2010 Basic and safety principles for man-machine interface(MMI),marking and identification—Actuating principles GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 14048.1-2023 Low-voltage switchgear and controlgear—Part 1:General rules GB/T 14048.3-2017 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors，switch-disconnectors and fuse-combination units 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 14048.5-2001 Low-voltage switchgear and controlgear—Part 5-1:Control circuit devices and switching element—Electromechanical control circuit devices GB/T 14048.5-2008 Low-voltage switchgear and controlgear—Part 5-1:Control circuit devives and switching element—Electromechanical control circuit devices GB/T 14048.5-2017 Low-voltage switchgear and controlgear—Part 5-1:Control circuit devices and switching element—Electromechanical control circuit devices AQ 1043-2007 Mining Product Safety Mark Identification MT/T 111-2011 Mining explosion-proof low-voltage AC vacuum electromagnetic starter。 MT/T 154.2-1996 The method for preparing product model numbers of coal mining electrical equipment and management measures MT/T 154.2-2019 Coal mining electromechanical product model numbering method - Part 2: Model numbering method for electrical products MT 175-1988 Mining explosion-proof electromagnetic starter with electronic protector MT/T 175-1988 Mining Explosion-proof Electromagnetic Start-up Transformer with Electronic Protector MT/T 661-2011 Common Technical Requirements for Electrical Equipment for Coal Mine Underground Workings GB/T 191-2025 Graphical symbols marking for handling and storage of packages