Using the right equipment is critical in any industry, but when working with electricity, it is a necessity. There is a right size extension cord for every function, and they last a long time when you take good care of them.
Extension cords come in many lengths and are marked with a size or "gauge." The gauge is based on the American Wire Gauge (AWG) System. The larger the wire, the smaller the AWG number. A 12 gauge wire is larger, and can power larger wattage appliances than a 14 gauge wire.
Because sources are so much easier to find online, once you know what you need, you can comparison shop online. Here are some factors to consider when you're ready to buy extension cords and supplies:
1. Will the industrial extension cord be used indoors or outdoors?
2. What is the total wattage of the appliances that you'll use with the extension cords?
3. How far is the nearest outlet from where you will be working?
Action Steps
The best contacts and resources to help you get it done
Purchase from reliable suppliers
Grainger Industrial Supply has been in business since 1927 and works with more than 1,300 suppliers to provide customers with access to more than 800,000 products. Their extensive list of industrial extension cords meets all industry safety standards.
I recommend: The industrial extension cord page on
Grainger's industrial
website lists all the specifications you need to choose the right heavy duty extension cord for your work. Their representatives are knowledgeable and experienced. If you prefer a local distributor,
Thomas.net has a list of industrial extension cord vendors and experts across the United States.
Know the correct sizes and uses for heavy duty extension cords
Check with the experts at Underwriter's Laboratory. They are the final word when it comes to terminology, standards and safety. Never purchase an industrial extension cord or custom extension cords without the Underwriter's Laboratory rating symbol.
I recommend: Underwriter's Laboratory is the best source for information about how to use heavy duty extension cords safely and properly.
Keep extension cord supplies on hand
It is important to care for electrical extension cords and replace worn plugs when necessary. There is nothing worse than getting to a job and finding out the plug is broken or you need power strips or adapters to make everything work. Custom extension cords must also be UL approved and rated to meet your power needs.
I recommend: Keep an extra supply of power strips, plugs and adapters on hand. Companies like
Quail Electronics carry all the additional electrical components you need. Another company is
Global Sources, which sells products manufactured worldwide.
Shop competitively
Once you know the extension cord size requirements and are ready to purchase extension cords for your business, consider shopping online at bargain websites for good deals. Again, be sure to look for that UL rating.
I recommend: Online resources like
Pronto provide one-stop access to extension cord manufacturers and general extension cord supplies.
Tips & Tactics
Helpful advice for making the most of this Guide
- Always insist on UL rated heavy duty extension cords and compare workmanship on products. Look at the features and workmanship, and make sure you're comparing similar products.
- Store all unused extension cords indoors. They will last longer.
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