Using outdoor plugs can be incredibly convenient for powering things like holiday lights, landscape lighting, and outdoor tools. However, outdoor plugs face exposure to the elements, especially rain, that can damage them over time. Protecting outdoor plugs from rain is important for safety and preventing costly repairs or replacements down the line. There are several effective methods for protecting outdoor plugs from rain and moisture.
Choose Outdoor-Rated Plugs and Covers
When selecting outdoor plugs, opt for ones that are rated for outdoor use. These are designed to withstand exposure to rain, snow, and temperature swings. The housing is weatherproof and seals out moisture. The internal components are also protected. Look for plugs rated for “wet locations”. The electrical contacts should be weatherproof as well. Using indoor plugs outdoors can create a fire and shock risk.
Outdoor outlet covers add another layer of weather protection. They fit over the plugs and receptacles to seal them off from rain, drips, and splashes. Covers come in plastic or metal and have spring-loaded doors that close around the cord. Get covers with a weatherproof rating and make sure they are snug-fitting over the plugs.
Use GFCI Outlets
For added protection from electrical issues caused by wet conditions, use outdoor plugs with GFCI outlets. GFCIs (ground fault circuit interrupters) have sensors that detect abnormal currents. If there is a surge from a short or shocked plug, the GFCI instantly cuts power to prevent injury or damage. Test GFCIs regularly by pressing the “test” button to confirm they are working properly.
Elevate Plugs Off the Ground
Set outdoor plugs on an elevated, covered surface to reduce rain exposure. Mount them high up on a wall or post under a roof overhang. Placing plugs directly on the ground can allow water to pool and seep into plugs even if they are weatherproof. Elevating them allows water to drain below. Point receptacles face down to prevent rain pooling inside.
Use Rainproof Cords
The power cords running from outdoor plugs also need protection. Outdoor extension cords and appliance cords should be rated as waterproof or outdoor-safe. They are designed to resist moisture infiltration and can wick water along the length. Make sure any exposed connections, terminals, or light strands have waterproof plastic covers. Do not use indoor extension cords outside – they can become safety hazards when wet.
Weatherproof Wire Connections
Any connections in wiring should be weatherproofed. Use outdoor-rated wire nuts, splice caps, and tape when joining wires. Heat shrink tubing applied with a heat gun creates a tight seal over wire connections. For light strands, connect plastic covers over light bulb sockets. Check that wire insulation is intact with no cracks or fraying that can allow water penetration.
Install Plug Covers
When outdoor plugs are not in use, seal them up with weatherproof plug covers. These plastic covers fit tightly into the receptacle openings and block water from entering. Use them in rainy weather when the outlets are not being used. Some covers come with attached caps for sealing up extension cord ends as well. Remove any cord caps during use so moisture does not get trapped inside.
Use Drip Loops
Drip loops prevent rainwater from running directly down cords and entering plugs. When plugging in an appliance, leave a loop of cord below the outlet so water drips off the loop instead of into the receptacle. Use twist ties or clips to keep the loop in place. For lights, form drip loops by attaching cords to walls or posts with some slack below the plugs or sockets.
Install Under Overhangs
Try to locate outdoor plugs in covered areas protected from rain like under eaves, patio covers, or overhangs. The roof projection will help shield the plugs from getting direct exposure to rain. Position them above flower beds or shrubbery to get natural coverage as well. Use angled covers to deflect water away from receptacles in exposed areas.
Check Condition Frequently
Routinely check outdoor plugs and cords for any damage from moisture orUV exposure. Look for cracks, loose parts, corrosion, burned spots or frayed cords. Replace any damaged plugs. Wipe down plugs to remove dirt buildup and ensure covers still fit snugly. Spray electrical parts with protective sealant made for outdoor metal and plastic fixtures.
Bring Plugs Indoors After Use
When possible, bring outdoor plugs indoors or store in a dry garage or shed after use. This prevents them from being exposed to rain and moisture when not in use. Thoroughly dry off any wet plugs before storing indoors. Roll up extension cords neatly and sheltered until needed again. Having dedicated indoor and outdoor plugs can help prolong their lifespan as well.
Consider Professional Outdoor Wiring
For a more permanent solution, have outdoor plugs and wiring installed professionally. Licensed electricians can wire outdoor receptacles through exterior walls using heavy-duty conduit for protection. All connections will be weatherproofed properly. Whole-house surge protectors add an extra defense against electrical damage. Though more expensive, professional outdoor wiring eliminates the need for portable plugs and extension cords.
Frequently Asked Questions About Protecting Outdoor Plugs from Rain
Protecting outdoor plugs and electrical equipment from rain and moisture is crucial. Here are answers to some common questions about how to keep outdoor plugs safe in wet weather.
Can I use indoor plugs outside if protected from rain?
No, regular indoor plugs should never be used outdoors even if shielded from rain. Indoor plugs lack weatherproofing features to resist moisture damage. Using them outside presents serious fire and shock hazards. Always opt for plugs rated for outdoor or wet location use when placing receptacles outside.
Should I unplug outdoor lights and decorations during rain?
It is generally recommended to unplug outdoor electrical decorations and lighting during heavy rain if possible. Even weatherproof cords and plugs can fail from prolonged soaking. Check that circuits are GFCI protected and avoid handling plugs when very wet. When not practical to unplug, make sure connections are elevated off the ground and protected.
How do I weatherproof outdoor light strands?
For light strands outdoors, ensure the wiring, plugs and bulb sockets are rated outdoor safe and waterproof. Use plastic covers and silicone sealant over any exposed sockets and junctions. Keep connections up off the ground with drip loops in cords. Check lights for moisture damage before each use and replace any damaged strands.
Can I cover an extension cord plug outside?
Yes, weatherproof plug covers made of durable plastic can seal up outdoor extension cord ends when not in use. This prevents rain from entering the plug openings. Just remove any covers before using cords and do not keep capped during use, as moisture buildup inside can occur. Drip loops in cords also help protect plugs from water exposure.
What if my outdoor plug does get wet?
If an outdoor plug happens to get wet from rain or sprinklers, immediately unplug all cords from it and do not use until completely dry. Wipe away excess moisture and allow the plug to air dry fully before reusing. Check for any evidence of internal water incursion or damage and replace plugs if defective. Avoid using damaged electrical devices outdoors which can be unsafe.
How often should I check outdoor plugs?
Outdoor plugs and electrical cords should be checked at the start of each usage for any wear or damage from weather exposure. Additionally, examine all outdoor electrical system connections, boxes and wiring at least twice per year. Look for corrosion, cracks, loose parts or frayed insulation. Replace any defective plugs or cords.
Can I use a surge protector on outdoor plugs?
Yes, you can use outdoor rated surge protectors and power strips on exterior receptacles to add extra protection from electrical surges. Choose ones made specifically for outdoor use and with weatherproof casings. Ensure they have proper GFCI or AFCI protection as well. Just take care not to daisy chain too many surge protectors off one outlet.
How much rain can outdoor plugs withstand?
Outdoor plugs made to code can withstand typical direct and blowing rain exposure. However, they are not made to be submerged underwater. Avoid locating plugs where water collects and floods the receptacles with puddles. Extended heavy downpours can still damage outdoor electrical systems over time. Check plug ratings and use drip protection methods during extreme precipitation.
Is electrical tape enough for weatherproofing wires?
No, regular household electrical tape alone does not make connections fully waterproof and can degrade outdoors. Use high-quality waterproof splicing tape, heat shrink tubing, silicone sealant or specialized wire nuts rated for wet locations. For light strands, replace any worn sockets and use outdoor-rated plastic covers. Inspect taped connections frequently for compromised seals.
Conclusion
Protecting outdoor electrical plugs and connections from rain is extremely important for safety. Moisture causes corrosion, shorts, and electrical hazards. Choose only outdoor-rated plugs and cords and consider professional outdoor wiring for permanent installations. Keeping plugs elevated, using GFCIs and drip loops, weatherproofing connections, and maintaining equipment are key. With proper precautions, outdoor plugs can be used reliably even in wet weather. Just take care to check them regularly and replace any damaged components right away before using outdoors.