The holiday season is right around the corner – oh wait…. IT'S HERE!

Most of us will soon be up on the roof, in the front yard, or inside the house putting up all of our festive decorations and making this Christmas a holly, jolly good time. Let's be honest, though; most, if not all, of our decorations will need to be plugged in. How much do you know about the cord and plug you are using this Christmas?

Most people who are going to be decorating their homes or workplaces do not quite know what extension cord is best for what decoration. They also do not know the difference between outdoor and indoor extension cords. Choosing the wrong one is a potential fire hazard and could ruin your Christmas décors. You do not want that to happen.

The good news is that if you are reading this, you are in the right place!

This article will tell you everything you need to know to go out and make this Christmas the best and brightest you have ever seen.

Indoor vs. Outdoor Extension Cords

This is probably the most critical question to answer. While most of your indoor décor is a garland, ornaments, trees, and other festive knick-knacks, there is also the light on the trees and in other places. So having a sound knowledge of indoor cords is a must. 

Outdoors, this is the opposite. Almost everything must be plugged in outside. There are usually a limited number of outlets outside, as well. So, various lengths of extension cords will be used to not overload a single outlet.  These cords must also be sufficient to power the decoration, so you will need to know what gauge is needed. And, of course, it is outside, so an outdoor extension cord is necessary. There is a lot to know when choosing the correct cord.  

The first hurdle is to know the difference between indoor and outdoor extension cords. Choosing the wrong one could be dire.  

Indoor extension cords are usually shorter in length and thinner. This means that they have a lighter gauge of wire inside. A lower gauge of wire means they are not as powerful as the outdoor cords. These extension cords allow you to reach that outlet to power the lights on the tree or the line across your banister. You would never want to use this outdoors, though.

The outdoor extension cords must be able to withstand the elements. Indoor cords are not designed to do this. All outdoor extension cords will have a thicker, more durable protective insulation layer. They also come in various lengths, usually 25, 50, 100, and 150 feet.  This helps when trying to reach those outdoor outlets that are not near your decorations.

It is imperative to choose the correct indoor or outdoor extension cord. One thing to remember is that outdoor extension cords can be used inside, but indoor cords cannot be used outside.

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How to Determine What the Extension is Best Used For

Every extension cord has designation lettering on the protective sleeve. This will help you determine what this cord was designed for. The designation depends on the type and gauge of wire used inside the cord. The list below will help you pick the correct extension cord: 

  • "S" - this cord is flexible and designed for general use.
  • "W" – this cord is rated for outdoor use
  • "J" - this cord has standard 300-volt insulation. If no J is in the designation, the cord has thicker, 600-volt insulation designed for heavier use.
  • "P" - this cord has a parallel wire construction, used in air conditioner cords and household extension cords
  • "T" - this cord jacket is made from vinyl thermoplastic
  • "E" - this cord jacket is made from thermoplastic elastomer rubber (TPE)
  • "O" - this cord is oil-resistant.
  • "FT2" – this cord is flame retardant.
  • "CL2S" - this wire is designed for in-wall construction.
  • "SRDT" - this wire is heavy duty and suitable for high amperage products.
  • "HPN" – this cord's performance won't be affected by the high temperatures associated with appliances.

So, now you know what those numbers and letters on the side of the extension cords tell you.

Use this information to ensure that you choose the right extension cord for your job.

The Best Uses for Different Length Cords

Let's discuss the different lengths of extension cords and how it affects functionality. The standard lengths are 25, 50, 100, and 150 feet extension cords. These lengths come in different gauges, as well. The standard gauges of wire used in these extension cords are 16-, 14-, 12-, and 10-gauge. The combination of length and gauge will affect how much amperage you will get from the cord.  

The longer the cord, the more of an amp drop you will get. This means that you might be getting 20 amps from the outlet, but you will only get a percentage of that for the decoration, power tool, or any other things being powered. This amp drop is not too severe. You will look at anywhere from 1% to 5% of an amp drop, with 1% being shorter cords and 5% with the more extended variety.  

The gauge of the wire inside the cord will also play a significant factor in amps being allowed to run through the cord. Without the correct amps, the appliance, tool, or decoration you are trying to power will not function properly.  

Here is a list of basic items that can be powered with various lengths of extension cords:

25-Foot and 50-Foot extension cords:

1 - 13 amps / 16-gauge wire Light Duty

  • Christmas lights
  • Work lights
  • Portable fans
  • Hedge Trimmers

14 - 15 amps / 14-gauge wire

  • Lawnmowers
  • Power drills
  • Table saws

16 - 20 amps / 12-gauge wire Medium Duty or 10-gauge wire Heavy Duty

  • Chainsaws
  • Circular saws
  • Shop vacs
  • Air compressors

100-Foot extension cords:

1 - 10 Amps / 16-gauge wire Light Duty

  • Christmas lights          Portable fans
  • Work lights                  Hedge trimmers

11 – 13 amps / 14-gauge wire Medium Duty

  • Lawnmowers
  • Power drills
  • Table saws

14 – 15 amps / 12-gauge wire Heavy Duty

  • Chain saws
  • Circular saws
  • Shop vacs

16 – 20 amps / 10-gauge wire Extra-Heavy Duty

  • Air compressors
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150-Foot extension cords:

1 – 7 amps / 14-gauge wire Medium Duty

  • Christmas lights
  • Work lights
  • Portable fans

8 – 10 amps / 12-gauge wire Heavy Duty

  • Lawnmowers
  • Power drills

11 – 15 amps / 10-gauge wire Extra-Heavy Duty

  • Table saws
  • Chain saws
  • Circular saws
  • Shop vacs

Why Choose Hot Shot for Electrical Safety?

The threat of fire is serious whenever you are dealing with electrical currents. Do not ruin this holiday season by choosing the wrong extension cord to power your decorations. Hot Shot Electric Service Co. can help you keep this Christmas safe. We can provide electrical inspections, panel upgrades, maintenance or installation of smoke detectors, and various other electrical repairs and replacements. Our family-owned company is here to ensure your Oklahoma home is as safe as possible!