GoodBuyGuys Blog

When you have a domain like buyextensioncord.com and it includes a toll free telephone number, you get a lot of questions. Taking the time to research customer queries has been a great way to grow our business.

Today, we got a call from someone who needed extension cords to use in large walk-in freezers. The cables he was using were freezing and could no longer be coiled. It was easy to understand his problem, but not quite so easy to find the solution.

If you have ever taken the time to look closely at an extension cord, you’ll see that there is a lot of difficult-to-decipher information printed on or embossed into the cable. This information tells you what environments the cable is designed to be used in and the amount of current that it is safely rated to carry.

Putting this info directly on the cable is required if Underwriters Laboratory is going to give the item its blessing as something safe for consumers to use. Here’s a useful link to safety info from UL about extension cords and how they are rated.

In doing a little research for this customer I came across a very nice diagram of how extension cords are made and the characteristics that give each type of cable its unique rating. Here’s a link.

It turns out that the info our customer needed is included in a 3-5 digit code found on all extension cords. The code is assigned by the National Electrical Code and the data in question usually starts with the letter “S”.

If you want to know a little more, click here.

Anyway, it turns out our customer is going to need a cable with a jacket specification of SJEOW. The “O” in this code means that the cable has a thermoplastic jacket (flexible at low temperatures) and the “W” means that it is rated for outdoor use. Extension cords with this rating will remain flexible down to -45 degrees F.

GoodBuyGuys.com is your online source for Permacel gaffers tape, Duracell Procell batteries, MagLite flashlights, Nashua duct tape, Bay State wire ties, Electratrac and Coast Wire extension cords, OnStage Stand mic stands, and lots of other useful supplies for temporary power distribution.

I use the Google Alerts notification system in order to track information about our customers, products and vendors.  It’s a great time saver and turns up a lot of unexpected information.

One of my alerts is set to the search phrase “extension cord“.  Unfortunately, all too often this time of year these alerts also include the word “fire“.

Somehow, it seems that Christmas decorating and overloaded extension cords regularly make headline news.  While it’s easy to understand how this can happen, it’s also easy to prevent.

All electrical devices (including lights and powered decorations) are required to be tagged with information relating to how much power they consume.  This information is usually listed along with the term “watts”.  When you plug multiple lights or electrical decorations into an extension cord, it is necessary to add the total number of watts (also known as “current draw”) to determine what size of extension cord is called for.

If this simple arithmetic is a little daunting, there is an easier way to figure out if there is a problem.

Plug everything in, turn all the decorations on, and hold the extension cord in your hand for three or four minutes.  If the cord becomes warm to the touch, then it is overloaded.  Remove one or more of the items plugged into it and try again.

If you can’t reduce the current draw, then you need to increase the size (known as the “gauge” of the cable).  This can be a little confusing, as the smaller the gauge number, the higher the current carrying capacity of the extension cord.  That is, a 14 gauge cord has a lower current carrying capacity than a 12 gauge cord.

Finally, even if you don’t have an overloaded extension cord, running it under a rug or behind a wall can still create a fire hazard if air can’t circulate and remove any heat build up.  It should be left out in the open.

Take a minute to plan before you begin holiday decorating.  I don’t want to be reading about you in Google Alerts.

GoodBuyGuys.com is your online source for Shurtape gaffers tape, Duracell Procell batteries, MagLite flashlights, Nashua duct tape, Bay State wire ties, Hosa and Entertainment One extension cords and OnStage Stand mic stands.  We’ve got lots of products that make holiday decorating easier.

We have a great line of extension cords intended for heavy duty use.  They use 12 gauge cable which gives them a 20 amp capacity, but we can’t really call them 20 amp cables because of the connectors that we use.

This has led to more than a little confusion among our customers.

Here’s why.

If you are familiar with standard wall outlets, you are probably aware that there are two different versions of outlets that look almost identical.

The standard 15 amp duplex receptacle (wall outlet) has openings for two parallel blades and a semi-circular ground prong.  This has been standard for almost 50 years.

An almost identical version of this outlet has an additional slot set at a right angle as part of the parallel blade opening on one side.

If the outlet has this additional right angle slot, it is intended not just 15 amp service, but 20 amp service as well.

A true 20 amp connector (male) on an extension cord will have, not two parallel blades, but rather two blades set at right angles to each other.  Otherwise they are identical.  Same size connector body, same size blades, same everything else.

15 Amp(Nema 5-15)

20 Amp (Nema 5-20)

If we sold our “20 amp” extension cords with a  20 amp rated connector, they it would only plug into the version of the wall outlet that is designed to accomodate both types of blades.

20 Amp Wall Outlet(Nema 5-20)

While we are confident that the product we sell is designed to handle a true 20 amp load, in order to truly rate an extension cord as being “20 amps” it must have one of its connector blades at right angles to the other.

Want to know more?  Here’s a valuable Wikipedia article.

GoodBuyGuys.com is your online source for Permacel gaffers tape,Duracell Procell batteries, MagLite flashlights, Nashua duct tape, Bay State wire ties, Hosa and Entertainment One extension cords andOnStage Stand mic stands.   Click here to sign up for our newsletter.  Lots more good ideas at our Twitter feed.