Explanation:

* Amperage and Overload: The amperage rating of an extension cord indicates the maximum current it can safely handle. Running appliances that exceed the cord's rating can cause the cord to overheat, melt, and potentially start a fire.

* Total Amperage: Three appliances drawing 10-15 amps each would consume a total of 30-45 amps, significantly exceeding the 20-amp capacity of the extension cord.

* Safety Risk: Overloading the extension cord can lead to:

* Overheating and fire hazard: The cord's insulation can melt, causing a short circuit or fire.

* Reduced power output: Appliances may not operate at full power or malfunction.

* Damage to appliances: Overloading can damage the internal components of appliances.

Recommendation:

To safely run three appliances drawing 10-15 amps each, it is essential to use a separate circuit with a higher amperage rating or distribute the appliances across multiple circuits.

Important Note: Always check the amperage rating of appliances and extension cords before connecting them. Never overload any electrical circuit or extension cord.