Ground fault circuit interrupter (GFCI) extension cords provide an essential layer of safety when using electrical devices in wet environments or outdoor settings. A GFCI works by constantly monitoring the current flowing into and out of a circuit. If it detects a ground fault where some current is being diverted through another path, like through water or a person, it will quickly cut power to prevent serious injury from electric shock.
Several different types of GFCI extension cords are designed for various applications. In this article, we will explore the 6 most common types, including inline GFCI cords, GFCI plugs, heavy-duty cords, triple tap cords, and GFCI power strips. By understanding the features and limitations of each, you can choose the right one to safely power tools and appliances in various conditions.
1. Inline GFCI Extension Cords
Inline GFCI extension cords have ground fault protection built directly into the cord. The cord contains a small circuit board and test/reset buttons in the middle. These come in various lengths with standard 3-prong plugs on both ends that can be plugged directly into outlets.
Some key advantages of inline GFCI extension cords include:
- Protection along the entire length of the cord since the GFCI is integrated.
- They don’t require a GFCI outlet to function, which makes them more versatile.
- Easy to test the ground fault protection anytime by pressing the test button.
- Suitable for use with a range of power tools and outdoor devices.
The main limitations are that they are lighter-duty than other types, and the points where the cord splits for the test/reset buttons could be points of weakness over time. In most cases, they also have a more limited amperage rating than a GFCI plug or power strip type.
2. GFCI Plug Extension Cords
With a GFCI plug cord, the ground fault protection is provided by a GFCI outlet plug connecting to the extension cord’s female end. It has a standard 3-prong outlet on one end and a GFCI-protected 3-prong plug on the other.
Benefits include stronger construction than inline cords since there are no weak points in the cord itself. They also have a higher continuous duty amperage rating than most inline cords. GFCI plug cords are also convenient to use with power tools since you can easily plug the tool directly into the GFCI-protected outlet.
In addition, some disadvantages are that only the devices plugged into the outlet end have protection. The cord itself before the GFCI plug is unprotected. You also need an available GFCI outlet to plug the other end into for it to function properly.
3. Heavy-Duty GFCI Extension Cords
A heavy-duty GFCI extension cord is preferable when using high-power draw tools or equipment. It is built to withstand heavier loads with thicker wire gauges. Ratings may range from 12-gauge cords to 10-gauge max amperage models.
Construction is very durable, using weatherproof PVC jackets that withstand abrasion, sunlight exposure, and moisture. Connectors are industrial-grade. Depending on the specific model, ground fault protection is an inline design or a GFCI plug. The additional materials and reinforced components increase price tags compared to standard consumer-grade cords.
4. Triple Tap GFCI Extension Cords
Rather than one or two outlets, triple tap extension cords contain three spaced outlets along their length after the power cord. Two styles are available—one with an integrated inline GFCI and the other using a GFCI plug. They also provide multiple access points to run several devices off a single cord.
Additionally, it is convenient when tools or appliances need to be spaced further apart. Ground fault protection covers all outlets. The tradeoff is that triple tap cords are bulkier than standard dual outlet types. The placement of outlets could also be a limitation for some uses.
5. GFCI Power Strips
A GFCI power strip functions similarly to the GFCI plug extension cord but provides multiple protected outlets arranged vertically along its width rather than just one. They plug directly into a wall outlet to deliver protected power. Furthermore, this makes GFCI power strips very convenient when multiple devices need GFCI protection in one place, such as an outdoor workbench setup. There’s no limitation on cord length like an extension cord, either.
Moreover, durability can vary more than that of hardwired types since there are many connections. Choose a heavy-duty model for outdoor use in wet conditions over the long run. It is best for permanently installed applications rather than frequent relocation.
6. Cord Reels
While not a type of cord, cord reels can keep outdoor extension cords organized and prevent trip hazards when not in use. Both non-GFCI and GFCI cord reel options exist. In addition, GFCI cord reels provide protection when using standard extension cords on a spool. Simply unwind as needed and return the cord for storage. This keeps cords neat and accessible without tangling.
Furthermore, when selecting a cord reel, consider the cord capacity and whether a swivel mount or stationary base is preferable for your space. If you plan to use it outdoors for long periods, include cords rated for sunlight exposure.
Wrapping Up
Depending on usage requirements, GFCI extension cords, plugs, power strips, and heavy-duty options all have advantages and disadvantages. Factors like continuous amperage needs, cord length flexibility, number of outlets required, outdoor versus indoor applications, and convenience will help select the most suitable type of GFCI protection. Proper ground fault cords allow the safe operation of devices anywhere electricity is needed.
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