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What is meant by the term self-powered warning device?

caveo security
in Members Lounge (Public)

Featured Replies

As in the topic please.

Something like a Honeywell AG6

So, I've decided to take my work back underground.... to stop it falling into the wrong hands

 

A bellbox c/w internal battery back up

As above in old term its an SAB, sas or scb

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  • 3 years later...

A self-powered audible device is equipped with an internal source of energy to power the bell. In the event of the main power failure, it can still activate via a secondary power source. In most bells, a backup battery is used. The modern bell boxes comply with the British standard BS50131 and use rechargeable Ni-Cd batteries which are kept charged by the control unit. A self-powered audible device needs to comply with Annex C of PD 6662: 2004 and with all the other provisions of prEN 50131-1: 2004 relevant to WDs.

The code of practice (Sub-clause 8.1.4 of prEN 50131-1:2004) also emphasis that means shall be provided to recognise a fault condition in the alternative power source.

    • Upvote 2

    Hi Vitor welcome to the forum. please note you have replied to a four your old post, the original poster has probably finished his intruder alarm for beginners course by now , and moved opn to Fire alarms for dummies 

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