A Knoxville house fire Wednesday marks the second electrical fire in just 48 hours caused by overloading a power strip.

Here's what you need to know about extension-cord safety, according to an electrician. These tips could save your life. Skip to main content. A Trusted Friend in a Complicated World.

According to Mock, "A heavy-duty extension cord with a lower gauge number (e.g., 12 or 14 gauge) is recommended, as these can safely carry the higher current required by space heaters." ...

Even if the extension cord doesn't cause a fire when attached to a fridge, there's a possibility it could cause the fridge to malfunction. 7. AC unit.