NEWS CENTER
Choose National Standard, Choose Safety; Buy With Comfort, Use With Confidence！
Safe operation and maintenance of wires and cables
Release Time：
2024-04-03
Measure the surrounding soil of adjacent lines using specialized instruments. If it belongs to the anode area, corresponding measures should be taken to prevent electrolytic corrosion of the metal sleeves of wires and cables.
(1) Corrosion monitoring
Measure the surrounding soil of adjacent lines using specialized instruments. If it belongs to the anode area, corresponding measures should be taken to prevent electrolytic corrosion of the metal sleeves of wires and cables. The metal sleeve often undergoes chemical and microbial corrosion in the surrounding moist soil or soil filled with household waste. Based on the measured voltage value in the anode area, appropriate cathodic protection measures or drainage devices are selected.
(2) Insulation supervision
Develop a preventive testing plan for each cable and wire based on their importance, promptly identify weak links, and eliminate defects that may cause accidents. Generally, after preventive testing, it is necessary to conduct separate DC voltage tests on the outer protective layer to promptly detect and eliminate defects in the outer protective layer.
(3) Load monitoring
The maximum current value is generally specified based on the cross-sectional area of the conductor and the type of insulation. Various instruments are used to measure the load current of the circuit or the temperature of the outer skin of the cable, as the main load monitoring measure, to prevent insulation from exceeding the allowable maximum temperature and shortening the cable life.
(4) Temperature monitoring
Temperature measurement should be conducted during summer or maximum load. When measuring the temperature of buried wires and cables, the soil temperature in the same area without other heat sources should be measured.
Keywords：
Prev
Prev：
Next：
Latest News