Burglar Alarm Going Off Power Cut

Some systems will react to that by setting off an alarm alerting you to potential problems. This notifies the alarm that you have aknowledged the power cut and at this point the alarm is being powered by the back up battery. If there is a mains power switch e g.

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This is the case for some fire alarms for example.

Burglar alarm going off power cut. During the event of a power cut your burglar alarm shouldn t be going off as the backup battery should be able to provide the alarm with power during a the power cut even during bad weather conditions. Other home security components may sound an alarm when the battery gets low. Burglar alarms have battery backups and tamper sensors that can kick in when the power is cut off and the battery runs down otherwise they could simply be disabled by switching off the power supply. Many residential burglar alarm systems also have home smoke detectors connected to them.

Fused switched spur for the alarm you could try turning that off. This back up system cuts in automatically when the mains voltage is lost. All professionally installed and maintained alarm systems must have a fully operational battery back up system that should keep the system operational for at least 12 hours and it should be checked by your maintainer each year. However if your alarm does go off during a power cut there may be a fault with it.

If the external siren bell is still going it should turn off after 20 minutes but again if there s a fault you may have to wait hours until it s batteries expire. In these cases shutting down the alarm system will not only disable alarm functions it will also disable fire alarm protection. A dead battery in one of your components creates a gap in your home security system. If you must turn off an alarm system of this kind.

For this reason all modern alarm systems have a battery backup designed to power the system for 10 24 hours depending on the complexity of the system and the condition of the battery. If your external alarm siren is ringing during a power cut then it means your internal alarm battery inside the main alarm box needs replacing. Any internal batteies will eventually run down though it may take several hours. When all power is cut including power to alarm systems the number is even higher.

This means the back up battery which is meant to keep the alarm running is unable to keep the alarm system running therefore setting the alarm off.