GB 14050-2008 Translated English of Chinese Standard. GB14050-2008: Types and safety technical requirements of system earthing [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, 2019. 11. 2. - 16ÆäÀÌÁö This Standard specifies types and safety technical requirements of system earthing. Its purpose is to protect human and equipment safety. This Standard is applicable to the power grid of which the system nominal voltage is AC 220/380V. |
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action protection device add residual current aluminum conductor amperes automatic power cutoff conductive part Figure conductor and protective conductor must comply contact voltage current action protection current protection device Current that ensures directly grounded earthing electrode earthing point earthing shall comply earthing system earthing terminal electric potential electric shock protection electrical connection electrical installation electrically independent end circuit equation equipotential bonding conductor equipotential bonding measures following requirements GB/T impedance indirect contact protection install residual current installation is directly insulation monitoring device main equipotential bonding meet the following meet the requirements neutral conductor neutral point overcurrent protection appliance PEN conductor phase conductor point of power power supply terminal protective conductor symbol protective measures provisions of 544.2 requirements in 5.1 residual current action residual current protection safety technical requirements supplementary equipotential bonding supply terminal Exposed System earthing type system In addition terminal Exposed conductive terms and definitions TN-C TN-C-S system