Smoke Detector Installation and Location Requirements
On the national level, codes and standards have been published that establish the requirement for fire detection equipment installation. As an example, a home must have at least one smoke detector installed to meet National Fire Protection Association (NFPA) Rule 72 and Underwriters Laboratories, Inc.
(UL) 985 standards. The UL 985 standard covers household fire warning
system control units intended to be installed in accordance with the National
Fire Alarm Code (ANSI/NFPA 72) and the National Electrical Code
(ANSI/NFPA 70).
ANSI/NFPA 72 is the standard document that defines the spacing for smoke detectors, which is typically 30 feet when installed on a smooth ceiling.
Safety and Code Regulations
The safety and code regulations for installing and locating fire alarms, sensors, and smoke detectors are usually governed by local building codes. The local codes are enforced by a fire marshal who conducts inspections of public places and sets the standard for local residential inspections.
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