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More stories about Electrical

  • 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.

  • Running Wire in Conduit

    EMT costs more up front, but it's less likely to get damaged and makes future upgrades a lot easier.

  • Subpanel Bonding

    Q: Is it possible to properly bond an electrical subpanel without running four-wire SER cable to it from the service-entrance panel? Some electricians have told me that under certain circumstances the subpanel can have its own ground wire and rod, while o

  • Coleman Cable Eco-Logical Smart Strip Surge Protector

    Phantom loads cost electric-utility customers $3 billion annually.

  • Letters

    Insulating knee walls; step flashings not the culprit; homeowner safety should come first

  • Letters From the Editor

    From the editor; permeance of foam in unvented attics; electrical red flag; immigration

  • To Bond or Not to Bond?

    Q. As a building inspector, I understand Article 250 of the most recent National Electrical Code (2005 NEC) to mean that any potential grounding electrodes available to each electrical service must be bonded together into that service's grounding electrod