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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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Electrical Tips to Help You Wire it Right
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The Safest Way to Test Electrical Devices and Identify Electric Wires!
The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
The Quickest Way to Check for Faulty Electrical Wiring!
The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets
Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency
Lights indicate if wiring is correct and indicator light chart is included
Tests standard 3-wire outlets
UL Listed
Light indicates if wiring is incorrect
Very handy and easy to use.
Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!
The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..
The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.
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Smoke Detectors - 1686
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