OUR SAFETY & PROTECTION SERVICES

What can I do about my home’s safety for smoke and fire protection?

One of the most overlooked safety devices in your home is a smoke detector. Simply put, a smoke detector is a device that is used to detect smoke. There are basically two types of smoke detector systems, one that has smoke detector wiring that issues a signal to a monitored fire alarm system and the other, known as smoke alarms, generally issue a local audible and/or visual alarm from the detector itself.

Smoke detectors are typically housed in a disk-shaped plastic enclosure, but the shape may vary by manufacturer or product line. Most smoke detectors work either by optical detection (photoelectric) or by physical process (ionization), while others use both detection methods to increase sensitivity to smoke. Smoke detector wiring can be powered by a central fire alarm system, which uses a battery backup, or as is the case in many single family detached and multi-family homes, a smoke alarm is powered only by a single disposable battery.

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Installation and placement

Smoke detectors are generally placed where they will do the most good. In the United States, most state and local laws regarding the required number and placement of smoke detectors are based upon standards established in the National Fire Prevention Association (NFPA 72) fire code. Laws governing the installation of smoke detectors vary from jurisdiction to jurisdiction. The United States requires smoke detectors on every habitable level and in attics that are accessible, and within the vicinity of all bedrooms. In Canada, it is required that a structure have a working smoke detector on every level.

In new construction, minimum requirements are typically more stringent. All smoke detector wiring must be hooked directly to the electrical wiring system, be interconnected and have a battery backup. Some jurisdictions also require smoke detectors in stairways, main hallways and garages.

Wired units allow a dozen or more detectors to be connected, so that if one detects smoke, the alarms will sound on all the detectors in the network, improving the chances that occupants will be alerted, even if they are behind closed doors or if the alarm is triggered one or two floors removed from their location. Smoke detector wiring with interconnections may only be practical for use in new construction, especially if the wire needs to be routed in areas that are inaccessible without cutting open walls and ceilings.

Battery Backup

Most residential smoke detectors run on 9-volt alkaline or carbon-zinc batteries. When these batteries run down, the smoke detector becomes inactive. When the battery is low, most smoke detectors will signal with a chirping sound at regular intervals. In regions that observe daylight saving time, public awareness campaigns suggest changing the smoke detector batteries when they change their clocks.

Some detectors are also being sold with a lithium battery that can run for about 7 to 10 years, though this might actually make it less likely for people to change batteries, since their replacement is needed so infrequently. By that time, the whole detector may need to be replaced.

Homeowners with questions or concerns regarding smoke detector placement, installation or repair should contact their Mister Sparky® technician for assistance. Local fire marshals and municipal building inspectors can also provide information on proper usage and placement.

Preventative Maintenance Program

The National Fire Protection Agency and the U.S. Occupational Safety and Health Administration (OSHA) state that every home electrical system needs annual service. With that in mind, Mister Sparky offers the Home Comfort Collection Program. The electrical maintenance agreement provides you with regular system checks. The maintenance completed is designed to meet or exceed all manufacturer and extended warranty requirements for system maintenance. The maintenance agreement will help keep your home's electrical system running at its optimum performance levels

Learn More About the Mister Sparky Home Comfort Collection

TALK TO US ABOUT THE PREVENTATIVE MAINTENANCE PROGRAM

210.549.9991

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