组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
找到 4,341 条
GB/T 11026.3-2017
Electrical insulating materials—Thermal endurance properties —Part 3: Intrucations for calculating thermal endurance characteristics
GB/T 1094.3-2017
Power transformers—Part 3:Insulation levels,dielectric tests and external clearances in air
GB/Z 34935-2017
Technical specifications for oil-immersed smart power transformers
GB/T 14598.27-2017
Measuring relays and protection equipment—Part 27：Product safety requirements
GB/T 8320-2017
Copper-tungsten and silver-tungsten electrical contacts
GB/T 7602.4-2017
Quantitative determination of T501 oxidation inhibitor content in transformer oil or turbine oil—Part 4: GC/MS method
GB/T 7251.4-2017
Low-voltage switchgear and controlgear assemblies—Part 4: Particular requirements for assemblies for construction sites (ACS)
GB/T 7251.3-2017
Low-voltage switchgear and controlgear assemblies—Part 3: Distribution boards intended to be operated by ordinary persons（DBO）
GB/T 6829-2017
General requirements for residual current operated protective devices
GB/T 5588-2017
Technical specification for silver-nickel,silver-iron electrical contacts
GB/T 5089-2017
General technical requirements for fan motors
GB/T 34940.3-2017
Static transfer systems(STS)—Part 3: Method for specifying performance and test requirements
GB/T 34940.2-2017
Static transfer systems(STS)—Part 2: Electromagnetic compatibility(EMC) requirements
GB/T 34940.1-2017
Static transfer systems(STS)—Part 1: General and safety requirements
GB/T 34939.1-2017
D.C.±800kV composite post insulator—Part 1: Composite post insulator with resin impregnated glass fibers solid core
GB/T 34937-2017
Insulators for overhead lines—Composite suspension and tension insulators for d.c.systems with a nominal voltage greater than 1500 V—Definitions, test methods and acceptance criteria
GB/T 34930-2017
Operation and control specification for microgrids connected to distribution network
GB/T 34929-2017
Unit cascaded soft-start device
GB/T 34928-2017
Load commutated soft-start device
GB/T 34927-2017
Motor soft-start device－General technical specifications