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You Can Avoid Costly Mistakes!
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Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book
Great for any Home Wiring Project.
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Questions about Smoke Detectors
Recent Questions and Comments
Electrical Safety for Old Home Electrical Wiring
I just moved into an OLD house, can I plug a 1200 watt appliance into an outlet without burning the house down? Electrical Safety for Old Home Electrical Wiring.
How to Test and Repair a Smoke Detector Circuit
How to Repair Smoke Detector Wiring Problems: Hardwired Smoke Detectors with Battery Back Up, Testing and Troubleshooting a Hardwired Smoke Detector Circuit.
Wiring a Smoke Detector in a Basement
How to Install Smoke Detectors – Take the mystery out of smoke detector wiring for basements. Smoke alarms provide the earliest warning of both fire and smoke.
Why Smoke Detectors Go Off
How to Find the Cause of False Smoke Detector Alarms: Smoke Detector False Alarms and How to Fix Them, What would cause a smoke detector to go off?
Electrical Wiring for Smoke Detectors
How a Smoke Detector Circuit is Wired – Take the mystery out of wiring smoke detectors, Smoke Detector alarms help provide the earliest warning for both fire and smoke.
See more at the Electrical Questions Category Listing.
Questions about Wiring Smoke Detectors
Question from Mike, an Electrician from Patchogue, New York:
Can the carbon monoxide alarm be connected to the smoke detectors in series and be the last on the line? I haven’t been on the job for a few years and I just want to make sure that is how it is done again. I know the smoke detectors are in series, but I forget if the carbon monoxide can be connected to it as well.
Dave’s Answer:
Many local areas require permanently installed carbon monoxide detectors with battery backup which are used to detect odorless gas which could be fatal. Check with your local building jurisdiction for the specific requirements, and if combining the circuit wiring of carbon monoxide detectors and smoke detectors is permitted.
Citation Reference: NEC NFPA 72 Article Section 29.5
Question from Mike, a Homeowner from Twin Falls, Idaho:
I want to install smoke alarms. Can I use 14/3 wire or do I have to use 12/3?
Dave’s Answer:
Smoke alarms may be wired from a circuit using 14/3 wire.
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GFCI Ground Fault Protection for Swimming Pool Lights: NEC Article 680-20, As described in this electrical question, anyone who enters the pool with this light on is in Danger of Potential Electrical Shock!
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