Often, wires heat up after a period of use. Generally, resistance heats up during use. When a power cable carries a certain load current, it will inevitably heat up. As the load current increases, the cable surface temperature rises. If not addressed promptly, the consequences can be unpredictable. But the heat shouldn't be that high. What causes it? What can you do if your wires are overheating? Let's take a look!
Why do wires overheat so easily?
1. The resistance of the wire's conductor itself is too high, or the line is overloaded, causing severe heating. Causes include:
a. The wire's conductor material is poor, not pure copper. Pure copper wire is much heavier than non-pure copper wire of the same size and structure. b. The wire's conductor is too thin and does not meet sufficient specifications to carry the excessive current.
2. Excessive power consumption at the terminal.
a. Irregular power usage and unauthorized connections, such as connecting a large number of high-power appliances like hot plates and induction cookers.
b. Irrational wiring planning: Upgrading home appliances to high-power air conditioners fails to meet safe power requirements.
3. Aging wiring causes the outer insulation layer to become brittle and peel, leading to a short circuit.
What should I do if the wires are overheating?
Power cables and wires will inevitably heat up when carrying a certain load current. As the load current increases, the cable surface temperature increases. If this condition is not addressed promptly, the consequences are unpredictable. If the cause is not identified and corrected promptly, the cable will continue to operate with power, leading to thermal breakdown of the insulation. This can cause the cable to short-circuit and trip between phases, and in severe cases, it can cause a fire.
When purchasing wires and cables, choose a reputable manufacturer, consult with an experienced electrician, and purchase wire with a larger square gauge if possible.
If the cable heats up, if the cause is not identified and corrected promptly, the cable will continue to operate with power, leading to thermal breakdown of the insulation. This can cause the cable to short-circuit and trip between phases, and in severe cases, it can cause a fire. We remind you to inspect the wiring and promptly identify and address any problems, which can effectively reduce the risk of fires caused by wires and cables.
