How to choose the cross section of the cable identification instrument

2022/07/21

Author: Noyafa–CCTV Tester

Question: How to choose the cross-section of the cable identification instrument cable Answer: How to choose the cross-section of the cable identification instrument cable Cable construction personnel need to pay attention when selecting the cable cross-section, if the selection is improper, the operation of the power grid will be abnormal and its service life will be shortened. That question: how to choose the cross section of the cable identification instrument cable Answer: how to choose the cross section of the cable identification instrument cable The cable construction personnel need to pay attention when selecting the cable cross section, if the selection is improper, the operation of the power grid will be abnormal and its service life will be shortened. So what requirements should the cable cross-section meet? It mainly needs to meet factors such as temperature increase, voltage loss, certain mechanical strength, and verification of thermal stability.

Temperature rise method: The cable power needs to test the current under long-term working conditions and record it according to the heat generation. The current cannot be less than the line current during operation. Voltage loss method: It is necessary to check according to the voltage loss method, and make the voltage of the connected voltage equipment meet the requirements.

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