NB/T 10517-2021 Standard for acceptance data of surface coal mine installation engineering

NB/T 10515-2021 Standard for quality of surface coal mine installation engineering GB 7251.1-1997 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB 7251.1-2005 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB/T 7251.1-2013 Low-voltage switchgear and controlgear assemblies—Part 1:General rules GB/T 7251.1-2023 Low-voltage switchgear and controlgear assemblies—Part 1:General rules GB 50119-2013 Code for concrete admixture application GB 50150-2016 Electric equipment installation engineering - standard for hand-over test of electric equipment GB 50231-1998 General code for construction and acceptance of mechanical equipment installation engineering GB 50149-2010 Code for construction and acceptance of busbar installation of electric equipment installation engineering GB 50171-2012 Code for construction and acceptance of switchboard outfit complete cubicle and secondary circuit electric equipment installation engineering GB 50184-2011 Code for acceptance of construction quality of industrial metallic piping GB 50231-2009 General code for construction and acceptance of mechanical equipment installation engineering GB 50268-2008 Code for construction and acceptance of water and sewerage pipeline works GB 50270-2010 Code for construction and acceptance of conveyor equipment installation engineering GB 50683-2011 Code for acceptance of field equipmemt,industrial pipe welding construction quality GB 51062-2014 Coal mining equipment installation construction specifications (with explanatory text) JGJ 55-2011 Specification for mix proportion design of ordinary concrete