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More stories about Electrical

  • Load Shedding and Lighting: The New Frontier

    The energy crisis in the early 2000s highlighted the fragile state of the nation's power infrastructure. High demand quickly outpaced available energy, leaving many people in the dark during the hottest days of the year. The rolling blackouts continued for months in some parts of the country, and...

  • In the News

    Chinese drywall investigated in Florida; West Virginia builder sued for installing fake radon systems; green building stats fall short; more

  • Are You Using State-of-the-Art Lighting Controls?

    Until the mid-1970s, buildings usually were designed without any type of lighting control. In fact, many also were designed without heating systems, because of the enormous heat produced by 24-hour operation of indoor lighting systems. In hot climates, you can imagine how this added to the amount...

  • Can Dimmer Switches Save Energy?

    Q: We know that compact fluorescents deliver energy savings, but how about dimmer switches? The assumption is that homeowners will use them to turn down lights to save money — but do they actually save energy?

  • Call for Nominations for NAED Annual Awards

    The National Association of Electrical Distributors has opened nominations for its 2009 awards.

  • Quick Fix for a Noisy Circulation Fan

    Q. My client's metal fireplace is supplied by a makeup air system with a built-in circulation fan. This fan - which plugs into an accessible outlet - is triggered by a heat sensor in the fireplace. While effective, it's also very loud. To reduce the noise, I'd like to replace the fan's on/off...

  • Burying Electrical Wiring In Attic Insulation

    Q: I know that knob-and-tube wiring can't be covered with insulation, but what about BX cable and joist-mounted junction boxes? Are there any restrictions on blowing cellulose insulation into an attic and burying the cable and junction boxes?

  • Products

    Three-way outlet; rotary dimmer; wireless smoke alarm; finish for pressure-treated lumber; more

  • Upgrading to Three-Prong Outlets

    Q. In an older house wired with BX cable, can the original two-prong outlets be upgraded to three-prong grounded outlets, provided they're properly bonded to the original metallic boxes?

  • Three States Adopt 2008 NEC

    The new code, to be adopted by Colo., Ken., and Wyo., adds requirements for the inclusion of arc-fault circuit interrupters and tamper-resistant outlets. See nema.org for more information on the new code.