Deciding between light-duty and heavy-duty extension cords might not seem like a difficult decision until the connected appliances develop frequent breakdowns, and you must keep repairing or replacing them.
While light-duty cables are appealing because they are affordable, heavy-duty wires are preferable if you want to maintain the functional integrity of your electrical circuits.
We’ve prepared a definitive guide to heavy-duty electrical wires and why every home or office needs them. But first, let’s begin by spelling out the difference between a light duty and heavy duty extension cord.
Differences Between Light-Duty and Heavy-Duty Extension Cords
Several parameters are used to distinguish light-duty from heavy-duty extension cords. One such metric is the gauge rating assigned to each wire.
Gauge measures the thickness or diameter of the conductors in an electrical cable.
Most extension cords are rated AWG 10, AWG 12, AWG 14, and AWG 16, where AWG stands for American Wire Gauge. However, you’ll also find wires with 8, 18, 20, and even 22 gauge ratings.
The key thing to note here is that the numbers are inversely proportional to the actual diameter of an electrical cord. That means a 10-gauge cable is thicker than a 12-, 14-, and 16-gauge wire.
Besides, wires with gauge ratings of 12 and below (10, 8, etc.) are generally regarded as heavy-duty, while those rated 14 and above are lighter-duty.
More importantly, the different gauge ratings in electrical wires aren’t merely design specs. They also impact the cables’ performance.
Heavy-duty cords are suitable for power-hungry appliances and tools, such as refrigerators, ovens, suction pumps, etc. Conversely, lighter-duty wires are ideal for small appliances like computers and televisions.
The 10/3 extension cord is one of the most popular heavy-duty electrical cables. The number 10 in the wire denotes its gauge rating, while 3 suggests that it’s designed with three copper conductors and an equipment grounding wire encased in a protective outer jacket.
In addition to gauges, you can distinguish between light-duty and heavy-duty electrical cords based on their amperage, voltage, and wattage ratings.
Amperage measures the volume of electrons passing through an electrical circuit in unit time, while voltage measures the force with which such electrons flow.
Wattage is the product of amperage and voltage. It denotes the energy released as electrons flow through an electrical cable.
Most heavy-duty power cables can handle up to 20 amps and are often rated for 220 volts or higher. So, a 220 extension cord would be an excellent place to start your search for a high-voltage wire.
Reasons to Upgrade to Heavy-Duty Cords
1. Better Efficiency
Heavy-duty electrical cords have superior current handling abilities than their lighter-duty counterparts. Due primarily to their thicker gauges, these cables can carry more power through an electrical circuit.
A heavy-duty electrical cord can keep your power-hungry appliances connected for an extended duration (up to days on end) without overheating.
2. Extended Durability
Durability is a critical consideration when shopping for electrical attachments. You want an extension cord that can power your home or office appliances for years before developing malfunctions. That’s another area where heavy-duty electrical cords perform exceptionally well.
Heavy-duty power cords can last a couple of years longer than conventional wires. That’s due to the thickness of their conductors and the premium materials commonly used for their insulation jackets.
Heavy-duty extension cords' extended durability makes them affordable in the long run. While these cables may attract a higher purchase price than regular wires, you won’t need to contend with frequent repairs or replacements.
3. Compatibility With Multiple Appliances
A heavy-duty extension wire isn’t only reliable with power-hungry appliances. The cord may also be delivered with less power-intensive devices.
The implication is that you can connect a 12 gauge extension cord to a variety of equipment, from refrigerators and suction pumps to computers, home entertainment systems, etc. The same would apply to a generator extension cord.
Comparatively, a light-duty power cord can only work with less power-demanding appliances.
4. Ability to Use Longer Cables
Longer extension cords typically have poorer current handling properties than shorter wires. That’s because a cable’s voltage decreases while its resistance increases with each additional footage, regardless if it’s a high voltage extension cord.
However, heavy-duty extension cords address those limitations with their larger gauges. These cables are designed to extend to any length, making them particularly suitable for industrial or outdoor applications.
The fact that a single heavy-duty wire can power equipment located several feet from the mains outlet eliminates the need for daisy-chaining.
5. Advanced Safety Features
Most heavy-duty extension cords have advanced safety specifications that make them ideal for use in diverse environments.
One such feature is a ground-fault circuit interrupter (GFCI) that shuts off the power supply when it comes into contact with water. There’s also a surge protector that guards against appliance damage caused by power surge.
Besides, the insulation jacket on most heavy-duty cables typically features a weather-proof material.
Summary
Cost variations are the biggest reason many people opt for light-duty electrical cords. But as we’ve seen, that only makes sense if you consider the initial purchase price. Investing in a heavy-duty electrical cord can be more economical in the long run due to the wire’s enhanced durability and performance.
Heavy-duty extension cords also have other features that make them stand out, including compatibility with different power needs and additional safety features.