The maintenance methods of mechanical cables mainly include the following points:
Appearance inspection: Regularly check whether the cable surface is damaged, scratched, cracked, etc., and whether there are debris or foreign objects attached to the cable. These inspections help to detect and deal with potential problems in time, and prevent small problems from turning into major failures.
Temperature inspection: Use tools such as infrared thermal imagers to monitor the temperature of the cable to ensure that the cable operating temperature is normal. Excessive temperature may cause the insulation performance of the cable to deteriorate, and even cause a fire.
Insulation inspection: Use equipment such as insulation resistance testers to test the insulation performance of the cable to ensure that the insulation resistance meets the requirements. The degradation of insulation performance will directly affect the safe use of the cable1.
Resistance and grounding inspection: Use a resistance tester to measure the resistance of the cable to ensure that the resistance value is normal; at the same time, check the grounding of the cable, including grounding resistance, whether the grounding wire connection is normal, etc. These inspections help ensure the normal operation and safe use of the cable.
Bending radius inspection: Check whether the bending radius of the cable exceeds the specified range to avoid damaging the cable. Flexible cables require special attention to avoid exceeding their minimum bending radius.
Humidity check: Humidity check of buried cables to prevent moisture penetration and degradation of insulation performance. Moisture can damage cable conductors and insulation materials, leading to failures and losses.
Bracket and fixture inspection: Check whether the cable brackets and fixtures are firm to ensure stable installation of the cable. Unstable installation may cause unnecessary pulling or squeezing of the cable, which will accelerate aging.
Cleaning and maintenance: Regularly clean the dust and dirt on the surface of the cable, and remove weeds and debris around the cable. Dust and impurities accumulated on the surface of the cable will hinder the heat dissipation of the cable and may cause the cable to break.
Record and report: Record the results of cable inspection and maintenance, and report to relevant personnel in a timely manner so that necessary repairs and replacements can be carried out.