datadiffusion Posted October 6, 2016 Posted October 6, 2016 Something like a Honeywell AG6 Quote So, I've decided to take my work back underground.... to stop it falling into the wrong hands
james.wilson Posted October 7, 2016 Posted October 7, 2016 As above in old term its an SAB, sas or scb Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount.
Vitor Ferreira Posted April 7, 2020 Posted April 7, 2020 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. 2 Quote
PeterJames Posted April 7, 2020 Posted April 7, 2020 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 Quote
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