Extending Power Outdoors

Intro

Position an outdoor receptacle at least 16 inches above the ground. An in-use cover increases protection from the weather. A simple wooden box built around it shields it from bumps by the lawn mower or kids at play. Outdoor receptacles must be GFCI-protected. Check local codes for approved cable, conduit, and boxes.

The quickest way to extend power outdoors is to install a receptacle back-to-back with one inside the house. You also can drill through the wall from a basement or crawlspace and attach a receptacle on the side of a house using an extension ring.

Checklist

Time
About 2 hours to install a new outdoor receptacle with extension ring and in-use cover (not including cutting a pathway for the cable, and patching walls)

Tools
Voltage tester, screwdriver, shovel, hammer, drill, long drill bit, saw, lineman's pliers, long-nose pliers, strippers

Skills
Stripping, splicing, and connecting wires to terminals; installing boxes; running cable through walls and ceilings

Prep
Make sure the new service does not overload the circuit

Materials
GFCI receptacle, outdoor box with extension ring and in-use cover, cable, conduit, fittings, wire nuts, electrician's tape

Step 1

Find the easiest path for cable to reach an outside wall, perhaps through a basement or crawlspace. Use a long drill bit to drill a locator hole. If the location is inconvenient or does not satisfy code, install an LB fitting rather than a receptacle to run power elsewhere.

Step 2

Using a reciprocating saw or keyhole saw, cut a hole for a remodel box. Run cable through the hole and into a remodel box. Install the box and add an extension ring and a terminal adapter if using PVC.

Step 3

Beneath the box dig a trench deep enough to satisfy local codes. Call before you dig. Using PVC or rigid metal conduit, attach a length of pipe to a sweep. Cut the pipe to fit, attach it, and anchor the conduit with straps

Step 4

Shut off power to the circuit. Connect the black and white wires from the power source to the LINE terminals of a GFCI receptacle. After you run cable for the new service, connect those wires to the LOAD terminals so the new service is GFCI-protected. Connect the power source.

Step 5

Install an in-use cover, which protects the receptacle from moisture even when a cord is plugged in.

Back-to-back wiring

One way to bring power outdoors is with back-to-back receptacles. Shut off power, pull out an indoor receptacle, and drill a locator hole through the wall to the outside.


Comments (3)
7942216737
general_lee_5 wrote:

I already have a 30 amp 120 volt service run under ground for 125 feet to supple my RV can i connect to this outlet for my extra 120 volt deplex receptacle with out losing power at my RV

1/24/2013 06:22:01 PM Report Abuse
general_lee_5 wrote:

I need a 120 volt deplex receptacle located about 125 feet from my service main.I want to tie straight into the service panel located outside on the pole how should i proceed,it will be under ground.

1/24/2013 06:17:02 PM Report Abuse
Hestheone2 wrote:

How do you know if you are following code? I would like to install a sump pump (9 amp) next to the house (for yard drainage). Can I tap into an existing circuit and still be within code? The easiest circuit to tap is labeled "hallway" on the panel, is 20 amp, and has already been tapped into for a heat pump water circulator (7 amp).

11/5/2009 12:56:42 AM Report Abuse
Add your comment

You must be logged in to leave a comment. Register | Log In
Wish-list Projects

Making these dreams come true is simpler than you thought -- print these instructions to begin!


ADVERTISER