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  • Electrical Work: Installation
  • From "Be Your Own Contractor"
    episode DBYC-106


    In this segment of DIY's Be Your Own Contractor, the contractors discuss their experiences with electrical installation.
    advertisement


    Wiring a house is a complicated endeavor that requires special knowledge and a lot of work. Inside wiring starts at the panel box, and is run one wire at a time to all the locations where power is needed throughout the house (figures A, B and C). All of our do-it-yourselfers agree that if you lack the experience and expertise needed for this undertaking, you shouldn't hesitate to bring in professionals to do the work for you.
    Photo

    Figure A

    Photo

    Figure B

    Photo

    Figure C


    For those who opt to do the work themselves, here are some tips from our contractors:

    Running Electrical Cable

    • Fred Samuels points out that all of the electrical cabling is done after the framing on the house has been completed. When routing electrical wiring through the studs (figure D), plan for the routes that comprise the shortest practical distances, require the least amount of drilling and the least amount of cable.

    • For Doug Kerr, drilling through studs wasn't an issue at all. For his house in Los Angeles, California, Doug opted to use steel framing (figure E) rather than wood. Steel framing is used more frequently in commercial construction than in residential, but it does provide a benefit when it comes to wiring. The framing can be purchased with punch-outs manufactured into the steel studs, making it easy to run the wiring without the need for any drilling. The cabling and conduit are simply routed through the pre-made holes (figure F).
    Photo

    Figure D

    Photo

    Figure E

    Photo

    Figure F


    PHOTO

    Figure G
    PHOTO

    Figure H
    Dealing with Mistakes

    With an installation as complex as electrical wiring, it's practically certain that an element of the project will be dealing with mistakes or misjudgments.

    • One problem that Doug Kerr ran into with his wiring installation had to do with unfamiliarity with a particular code restriction. When he began doing the wiring himself, he didn't realize that each standard electrical box should only accommodate a maximum of 12 wires. As a result of this mistake, Doug had to go back and flag boxes that had too many wires (figure G) and rework the wiring.

    • For Jody Siegler, the mistake had to do with aesthetics. Because she has a lot of framed art that she knew she would be hanging in her home, Jody followed a recommendation of her design team and opted to have installed a number of special outlets for specialized picture-lights. After seeing the picture lights in her finished home, she decided the special lights had too formal a look for her interiors. As a result, she paid for installation of a number of special outlets (figure H)J that she does not use. She lights her pictures instead using other light sources. She now feels that she should have been more confident and assertive at the outset, and declined the suggestion of her interior designers.

    PHOTO

    Figure I
    PHOTO

    Figure J
    Outlets Placement: Less Is Not More

    One thing that first-time home-builders frequently underestimate is the number of electrical outlets they will need. When it comes to outlet, it's usually best to follow the adage that "more is better."

    • Michael Buchtel deliberately installed more receptacles than required by the electrical code. This ensured availability of access to electrical power in just about any location in every room. Throughout most of the house, Michael installed a receptacle every five feet along the walls (figure I).

    • Fred Samuels agrees that an abundance of outlets is a benefit. He notes that extra receptacles cost very little, and advises home builders that an excess of available outlets (figure J) will come in handy and reduce the need for unsightly extension cords.

    The segment that follows highlights some special electrical and home-automation features.

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