Installing Smoke Detector Electrical Wiring

Electrical Question from Rob about Smoke Detectors
Background: Rob, a Homeowner from Doncaster
Question: When installing a heat sensor/smoke alarm in kitchen, and 2 additional smoke alarms in hallway, is it ok to run 1.5mm 3 core and earth from consumer to kitchen alarm and then 1.5mm twin and earth from kitchen alarm to next two?

Dave’s Reply:
Thanks for your electrical question Rob. It is typical for newer installations of smoke detectors to be connected in series so that if one goes into alarm, they all do.

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Home Electrical Wiring and Electrical Repairs Please Note: Unless otherwise posted, please refer to the following Guidelines when working on Electrical Projects: Skill Level: Intermediate to Advanced - Electrical Repairs and Circuit Wiring is Best Performed by a Certified Electrician or Licensed Electrical Contractor. Electrical Tools Required: Basic Electricians Pouch of Hand Tools, a Voltage Tester and a Multi Meter. Estimated Time: Depends on personal level experience, ability to work with tools, work with electrical wiring, and the available access to the project area. Precaution: Identify the project circuit, turn it OFF and Tag it with a Note before working with the wiring. Important: Modifying existing electrical circuits or installing additional electrical wiring should be done according to local and National Electrical Codes, with a permit and be inspected.

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