An extension cord is a flexible electrical power cable that has a plug at one end and one or more sockets at the other. It is usually used for mains extensions, but other types of cabling are also available. There are several different types of cords available, and it is always advisable to learn how to use each type before you begin using one.
You should also pay attention to safety features. For example, you should never use a non-grounded extension cord with a heavy appliance. If you plan to use it for large appliances, it is best to use a three-prong cord. Smaller appliances, on the other hand, should use thin or flat cords.
Another important factor to consider when buying an extension cord is the wire gauge. The gauge of the wire determines its thickness. A smaller number indicates a thicker wire, which is better for heavier loads. Also, you should choose a cord that matches your appliance's amperage rating. For example, a 12-gauge cord is best for 120-volt appliances.
Extension cords are available in different colors, thickness, and length. A thicker cord means more wires inside it. Make sure to choose an extension cord that is appropriate for the temperature and location you will use it in. You should also be aware of how many sockets your extension cord can accommodate.