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An outlet will only get hot enough to cause a fire if:

  1. There is a problem with the wiring connecting it to the supply, this will become quickly obvious when in use.
  2. It is overloaded. The electrical supply is supposed to have a fuse or breaker to prevent this.

There is also a 3rd cause of potential fire:

3. A loose wall socket connection

Loose wall socket connections can be a MAJOR concern, causing the plug and socket to overheat. This is primarily a problem on older homes.

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Related questions

Why is a cracked plug socket can cause a potential fire hazard?

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