GB/T 27744-2021
异步起动永磁同步电动机技术条件及能效分级(机座号80~355)
Specification and energy efficiency grades for line-start permanent magnet synchronous motors (frame size 80~355)
- 实施日期
- 2022-05-01
- ICS 分类
- 29.160.30
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。
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GB/T 27744-2021
Specification and energy efficiency grades for line-start permanent magnet synchronous motors (frame size 80~355)
GB/T 10217-2021
Design guide of the outline and structure for the electric control equipment
GB/T 16895.7-2021
Low-voltage electrical installations—Part 7-704: Requirements for special installations or locations—Construction and demolition site installations
GB/T 40777-2021
Requirements for automatic reclosing devices (ARDs) for circuit-breakers,RCBOs and RCCBs for household and similar uses
GB/T 40820-2021
Residual direct current detecting device (RDC-DD) to be used for mode 3 charging of electric vehicles
GB/T 19334-2021
Dimensions of low-voltage switchgear and controlgear—Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories
GB/T 5169.20-2021
Fire hazard testing for electric and electronic products—Part 20: Surface spread of flame—Summary and relevance of test methods
GB/T 5169.9-2021
Fire hazard testing for electric and electronic products—Part 9: Guidance for assessing the fire hazard—Preselection testing procedures—General guidelines
GB/T 5169.2-2021
Fire hazard testing for electric and electronic products—Part 2: Guidance for assessing the fire hazard—General guidelines
GB/T 25285.2-2021
Explosive atmospheres—Explosion prevention and protection—Part 2: Basic concepts and methodology for mining
GB/T 25285.1-2021
Explosive atmospheres—Explosion prevention and protection—Part 1: Basic concepts and methodology
GB/T 3836.35-2021
Explosive atmospheres—Part 35:Classification of areas for explosive dust atmospheres
GB/T 3836.29-2021
Explosive atmospheres—Part 29:Non-electrical equipment for explosive atmospheres—Constructional safety “c”, control of ignition source “b”, liquid immersion “k”
GB/T 3836.28-2021
Explosive atmospheres—Part 28:Non-electrical equipment for explosive atmospheres—Basic method and requirements
GB/T 3836.31-2021
Explosive atmospheres—Part 31: Equipment dust ignition protection by enclosure “t”
GB/T 3836.13-2021
Explosive atmospheres—Part 13: Equipment repair, overhaul, reclamation and modification
GB/T 3836.8-2021
Explosive atmospheres—Part 8:Equipment protection by type of protection“n”
GB/T 3836.5-2021
Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure “p”
GB/T 11019-2021
Nickel coated round copper wire
GB/T 21973-2021
YZR3 series wound-rotor three-phase induction motors for crane and metallurgical applications—Technical specification