6 Essential Tips for Using Outdoor Extension Cords
Outdoor extension cords provide a convenient way to connect electrical appliances in areas with limited access to power outlets. Whether planning an evening lawn party and requiring extra patio lighting or working on a busy construction site, an outdoor extension cable can be a lifesaver.
However, it’s imperative to observe certain precautions while deploying extension cords outdoors. Following professional guidelines not only enhances the efficiency of power extenders and connected appliances. It also minimizes electrical hazards, including shocks and electrocution.
In this post, we shall uncover the six essential tips for using outdoor extension cords.
1. Understand the Differences Between Indoor and Outdoor Extension Cords
The primary distinction between indoor and outdoor extension cords relates to the type of materials used for both the insulation and jacket. An extension cord’s insulation refers to the cover taped on the bare conductor wires to create a physical and electrical barrier. At the same time, jackets are the outer sheaths that protect the cable from mechanical and chemical issues.
Both the jacket and insulation material (and, of course, the conductors) can impact the performance of an outdoor extension cord significantly.
Indoor and outdoor extension cords also vary in length. Most outdoor cables are considerably longer (measuring up to 200 feet or more) compared to indoor wires that are typically 30 feet tops.
2. Check the Relevant Labels on a Cord’s Insulation and Jacket
While shopping for an outdoor extension cord, watch the letters W, O, and E on the cable’s label.
W stands for weather resistant. It denotes a wire’s ability to withstand harsh elements, particularly moisture ingress.
O represents oil resistance. Such cables are excellent for use in environments prone to oil leaks. A single O means only the outer jacket is oil-resistant, while two Os implies the jacket and insulation are oil-resistant.
Finally, T stands for TPE (thermoplastic elastomer). TPE is a robust plastic that is noted for its ability to withstand extreme temperature fluctuations and sunlight damage. Outdoor extension cords rated T can perform exceedingly well in relatively hot and frigid conditions. Besides, their conductors are cushioned from ultraviolet (UV) damage.
3. Match an Extension Cord with an Appliance’s Power Draw
After getting an extension cord rated for the outdoors, the next step is to match it with the correct appliance.
First, ensure the wire’s gauge rating is compatible with the equipment in question.
Gauge denotes the diameter of conductor materials. Smaller numbers (12, 10, 8 etc.) denote thicker wires with superior current handling abilities, while the converse is true for larger numbers (14, 16, 18, etc.).
Another way to establish the compatibility of extension cords with electrical equipment is to check their voltage rating.
Most cables have a voltage rating of 120 volts (V), which can power standard appliances like vacuum cleaners. For heavier-duty equipment like modern cloth dryers, water heaters, and air conditioners, aim for at least 220 volts.
4. Do Not Daisy-Chain
Daisy-chaining refers to connecting multiple extension cords in a series, ostensibly extending the reach of electricity to the needed equipment. Experts strongly discourage such connections due to their increased risk of circuit overload.
Instead of daisy-chaining extension cords, use a single cable long enough to connect outdoor appliances to the nearest power outlet.
In the same breath, do not use longer extension cords than you need. The extra footage may increase the wire’s resistance, causing a drop in its voltage and conductance. Besides, longer extension cords present tripping hazards due to their susceptibility to tangling.
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5. Insist On Three-Prong Extension Cords
Extension cord plugs are either two-prong or three-prong. While you can safely use the two-prong varieties indoors, outdoor extension cables should preferably have three-prong plugs.
The additional pin in 3-prong extension cords connects to a ground wire that offers protection when current leaks or strays from the circuit. Grounded extension cords can protect your outdoor appliances from common electrical hazards like shocks and explosions.
To further enhance the safety of your outdoor extension cords, consider plugging them into ground-fault circuit interrupter (GFCI) outlets. These outlets provide an extra layer of protection by shutting down the power supply when they detect current leaks, especially in wet or damp areas.
6. Do Not Run Extension Cords Through Hidden Spots
It’s intuitive to run extension cords through dense grass or leaf piles while using them outdoors, apparently to shield the cables from direct heat or mechanical damage. However, this may not always produce the desired results.
Covering extension cords prevents heat from dissipating out of the conductors. Continued heat buildup can cause these wires to melt and explode.
Besides, passing extension cords through hidden spots poses a greater risk of fraying or twisting. A damaged extension cord is one mistake away from electric shocks or appliance malfunctions.
The best way to protect your extension cords from the elements is to invest in a cable with proper weather-proof jackets and insulation materials.
Photo Credit: Pixabay.com
Summary
When it comes to using electrical attachments, it’s always better to be proactive than reactive. A simple act of negligence can result in unimaginable consequences, including devastating property damage and loss of lives.
Since extension cords play a critical role in powering electrical appliances, due diligence is paramount while purchasing and using them.
Invest in a cable rated for the equipment to which you intend to connect it. Then, follow professional recommendations to optimize the safety and performance of your valuable electrical appliances.
