GB/T 13955-2017 Translated English of Chinese Standard. (GBT 13955-2017, GB/T13955-2017, GBT13955-2017): Installation and operation of residual current operated protective devices [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2018. 10. 5. - 37페이지 This Standard specifies the relevant requirements for correct selection, installation and application of residual current operated protective devices (RCD) and their operational management. This Standard applies to AC power supply systems with a rated voltage not exceeding 400 V. This Standard does not apply to the protection against electric shock accidents, electrical equipment damages or electrical fire accidents between phases or between phases and N lines. |
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alternating current circuit-breaker without integral contact electric shock current operated circuit-breaker current operated protective Delay level difference device An RCD difference is 0.1 direct contact electric earth fault earthing device earthing point Earthing pole electric shock accidents electrical network end protection exposed accessible conductors Figure C.1 four-line GB/T household and similar installation of RCDs integral overcurrent protection low-voltage main protection Maximum break middle protection neutral line operate under specified operated protective devices operating current value operation characteristic test power supply end Power supply User’s power supply voltage protection for household protection mode protective line pulsating direct current rated making-breaking capacity rated residual operating rated voltage RCBO RCD operation residual current device residual current operated residual current value residual non-operating current residual operating current select the RCD Selection of RCD selective protection method single-phase specified conditions suddenly applied system earthing three-level protection three-phase TN-C TN-C-S system TN-S TT system