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Most people understand and appreciate the dangers associated with electricity, which is why they often panic when electrical wires in their residential or commercial environment get too hot to touch.
What could cause a wire to get hot or electrical cord hot?
Wires can get hot (without overheating) for a variety of reasons. They generate heat whenever electricity passes through them due to their resistance.
If your wires are transmitting electricity to powerful devices like refrigerators, the significant amounts of current they must carry will cause them to run hotter than if they were connected to a less powerful device like a light bulb.
If you don't have any powerful appliances in the circuit, but your wires are still hot, the environment is probably the cause. Ambient temperature can raise the temperature of wires in a specific room. It is very common for the wire to catch fire or for the shower wire to catch fire.
In other words, wires that are hot from room temperature aren't necessarily a cause for concern, unless your electrician chooses to cut costs by buying cheap, poorly made wires.
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