GB/T 38658-2020
ActiveGuidance for the extension of validity of type tests of AC metal enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
3.6 kV~40.5 kV交流金属封闭开关设备和控制设备型式试验有效性的延伸导则
🔗 Related Standards / 同类标准
GB/Z 21713-2008
Recommended practice on characteristic of surges in low-voltage (1000 V and Less) AC Power circuits
GB/Z 22721-2008
Guidance for the correct use of residual current-operated protective devices (RCDs) for household and similar use
GB/Z 32513-2016
General rules of reliability for low voltage apparatus
GB/Z 22200-2016
Reliability test method for lower capacity alternating current contactors
GB/Z 22074-2016
Reliability test method for moulded-case circuit-breakers
GB/Z 22201-2016
Reliability test method for contactor relay
GB/Z 22203-2016
Reliability test method of circuit-breakers for overcurrent protection for household and similar installation
GB/Z 22202-2016
Reliability test method of residual current operated circuit-breakers for household and similar uses