During transportation, especially at low temperatures (usually below 5°C), do not drop household wires or cable drums with cables from a high place. Throwing or dropping of the cable may cause the insulation sheath to rupture;
Avoid damp, heat, corrosion or scratches on the wires. When using wires, please stay away from these unhealthy environments and do not overuse wires to avoid accidents.
Pay special attention to lines that are prone to water. If necessary, you can ask an electrician to re-arrange the lines and take measures such as overhead and moisture proof. After using for a period of time, the wires should be checked regularly, especially the wires that are installed in old buildings or have not been installed for a long time. For the repaired wires, check whether the wires are aging in time. If any problems are found, call an electrician to repair them immediately.
Among them, attention should be paid to cable load monitoring. Since overload is very harmful to cables, the cable load should be measured and monitored frequently. A clamp-on ammeter can be used to measure the cable load. In principle, the control cable will not be overloaded. The cable should be kept within the specified allowable continuous current-carrying capacity. In order to prevent premature aging of the cable insulation, the line voltage should not be too high, and generally should not exceed 15% of the rated voltage of the cable.
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