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GB 50217-2018 第3.2.2条 Standard for Cable Design of Electric Power Engineering

Cable cross-section电气工程

GB 50217-2018 第3.2.2条

| **** | The ampacity of continuously operating circuit cables shall be corrected according to the installation environment (in air, in cable tray, in conduit embedded in wall, etc.) and the temperature correction factor. In hotel ceiling voids and pipe shafts, heat dissipation conditions are poor, so verification must be emphasized. |

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