GB/T 21056-2007 Specification for adjustable speed drive systems of electricity conservation with VF for fans and pumps

GB/T 2423.1-2001 Environmental testing for electric and electronic products—Part 2:—Test methods Tests A:Cold GB/T 2423.2-2001 Environmental testing for electric and electronic products—Part 2:Test methods-Tests B:Dry heat GB 4943-2001 Safety of information technology equipment GB/Z 17625.6-2003 Electromagnetic compatibility—Limits—Limitation of emission of harmonic currents in low-voltage power supply systems for equipment with rated current greater than 16A GB/T 17626.4-1998 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burst immunity test GB/T 2423.3-1993 Basic environmental testing procedures for electric and electronic products—Test Ca:Damp heat, steady state GB/T 2423.3-2006 Environmental testing for electric and electronic products—Part 2:Testing method—Test Cab:Damp heat, steady state GB/T 2423.3-2016 Environmental testing—Part 2:Testing method—Test Cab:Damp heat,steady state GB/T 2423.21-1991 Basic environmental testing procedures for electric and electronic products—Test M:Low air pressure GB/T 2423.21-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test M:Low air pressure GB/T 3797-2005 Electrical control assemblies GB/T 3797-2016 Electrical control assemblies GB/T 5080.7-1986 Equipment reliability testing Compliance test plans for failure rate and mean time between failures assuming constant failure rate GB/T 12668.2-2002 Adjustable speed electrical power drive systems—Part 2:General requirements—Rating specifications for low voltage adjustable frequency a.c power drive systems GB/T 13466-1992 The general principles of economical operation for fans (pumps、compressors) system of alternating-current electric drive GB/T 13466-2006 The general principles of economic operation for AC driven fan (pump,air compressor) system GB/T 2423.21-2025 Environmental testing—Part 2:Test methods—Test M:Low air pressure GB/T 12668.2-2025 Adjustable speed electrical power drive systems—Part 2:General requirements—Rating specifications for adjustable speed AC power drive systems