Low-Voltage Wiring Instruction

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Grounding Electrical Boxes

Different approaches can work as long as you maintain continuity in the ground. More

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Pigtails for Switches?

Is there any advantage to wiring switches with pigtails? More

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Quick Fix for a Noisy Circulation Fan

Q. My client's metal fireplace is supplied by a makeup air system with a built-in... More

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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? More

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Using A Volt-Ohm Meter

A master electrician describes how to trace wires, identify circuits, and diagnose common job-site electrical problems. More

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Q&A: To Pigtail or Not to Pigtail?

Q: I have always thought that the best way to wire a receptacle is to use a... More

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Q&A: 3/4-Inch Conduit Capacity

Q: What is the maximum number of 12-gauge wires permitted in 3/4-inch conduit? More

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Q&A: Arc-Fault Circuit Interrupters

Q: What is an arc-fault circuit interrupter? Are they expensive? Are they subject to nuisance tripping? More

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Q&A: Tying into Old Armored Cable

Q: Can you keep old armored-cable circuits, or should you replace them? If you... More

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