What to Look For in Extension Cords

An Extension Cord is an electrical power cable that features a plug on one end and one or more sockets on the other. While this term usually refers to mains extensions, it can also refer to other kinds of cabling. The most common type of extension cord is a household extension cord, but it can also be used for other purposes as well.

Extensive testing

When buying an extension cord, always choose one that has been extensively tested by a recognized laboratory. It's also good to check the conductivity of the cord, as conductivity indicates the condition of the internal wires. If you're unsure, call an electrician to conduct the test.

Power cords must be capable of efficiently handling electrical power and transmitting high-quality electricity. Electrical supplies must meet standards set by the National Electrical Manufacturers Association (NEMA), which has standards for the quality of electrical cords and other electrical equipment. However, these standards are often ignored by users. This is why it's crucial to conduct tests on extension cords on a regular basis.

Amperage rating

When purchasing extension cords, it's important to know the amperage rating. This rating is based on the wire gauge and how much power a particular cord can handle. It should be present on the tag on the cord itself. The amperage rating of a cord is also dependent on the appliance or tool connected to it. In general, you can use a household cord with a lower amperage rating for simple devices. However, if you're planning to use a power tool such as a grinder, you'll need to get a cord that's rated for at least 15 amps.

Choosing the right type of cord is a matter of safety. If your extension cord is not rated for the power required by your device, it may cause it to catch fire. Also, it's important to look at the extension cord's construction. Using an aluminum extension cord, for instance, can be hazardous. Aluminum extension cords have a lower amperage rating than copper extension cords. Also, a copper extension cord has a lower temperature rating than its aluminum counterparts.

Length

When shopping for extension cords, length is one of the most important factors. The longer the cord, the less likely it is to be damaged. Longer extension cords also tend to be safer, as their thicker wires can carry more power for longer distances. You should avoid daisy-chaining extension cords, however, as this adds electrical resistance and can decrease power to your equipment.

The wire gauge size of extension cords is another important factor. It is important to use the right wire gauge for the desired length. For example, if your extension cord is only 50 feet long, then it should be 16 gauge. Any smaller wire gauges are dangerous, and could lead to overheating or loss of power. Lastly, cords with too short of a length can also be a safety hazard, particularly in wet outdoor conditions.

Ground slot

The Ground slot on an extension cord helps avoid electric shocks. It also helps protect electrical equipment from damage. The ground wire in an extension cord is positioned on the bottom of the plug. It's similar to the neutral slot on an outlet. This is a protective wire for appliances that have metal cases.

An extension cord with a Ground slot should be plugged into a grounded outlet. Older homes may not have a ground pin, so the ground slot isn't necessary. This is because most plug-in appliances aren't grounded. They're double-insulated. If you're installing an extension cord in an old home, it may not have a ground slot.

Durability

One of the most important things to look for in an extension cord is its durability. If you find that an extension cord is frayed or has holes, it should be replaced immediately. This is because damaged cords can expose the wires inside, which can lead to electric shock or fire. Look for cracks in the plastic that surrounds the plug and at the point where the wire meets the plug. If the plastic has cracked, you can cover it with electrical tape, but make sure not to cover the wires or the cord's openings.

Durability of extension cords varies depending on how they are used and stored. Cords manufactured with a higher quality material can withstand high energy tools and appliances within a certain wattage range, and they will last longer than less durable ones. Durable cords also tend to have more conductors, which means they are more resistant to high temperatures and abrasive environments. Lastly, cords made with more durable materials are less likely to spark or break.