NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Language
NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–CCTV Tester
Question: How to choose the cross section of the cable identification instrument cable Answer: The cable construction personnel need to pay attention when choosing the cross section of the cable. Improper selection will cause abnormal operation of the power grid and shorten its service life. So what requirements should the cable cross section meet? Question: How to choose the cross section of the cable identification instrument? Answer: Cable construction personnel need to pay attention when selecting the cable cross section. Improper selection will cause abnormal operation of the power grid and shorten its service life. 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.
Copyright © 2022 SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED - www.noyafa.net All Rights Reserved.