MT/T 1225-2025 Explosion-proof limited angle electric actuator for mine

GB/T 156-2017 Standard voltages GB/T 755-2019 Rotating electrical machines—Rating and performance 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 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/T 3836.3-2021 Explosive atmospheres—Part 3:Equipment protection by increased safety “e” GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 9969-2008 General principles for preparation of instructions for use of industrial products GB 9969.1-1998 General principles for preparation of instructions for use of industrial products GB/T 10111-1988 Methods for random sampling by utilizing dices of random number GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 14048.1-2023 Low-voltage switchgear and controlgear—Part 1:General rules AQ 1043-2007 Mining Product Safety Mark Identification JB/T 8219-2016 General and intelligent electric actuators for industrial process control systems MT/T 154.2-2019 Coal mining electromechanical product model numbering method - Part 2: Model numbering method for electrical products MT/T 661-2011 Common Technical Requirements for Electrical Equipment for Coal Mine Underground Workings