Intruder Alarms

Intruder Alarms

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Intruder Alarms provides a definitive and fully up-to-date guide to the specification, systems design, integration, installation and maintenance of intruder alarm systems. It has been written to be the essential handbook for installation engineers and security professionals working in this rapidly expanding and developing area. The third edition includes new material on systems integration, digital systems, wireless and remote signalling technologies, and electrical safety. The revision has brought coverage fully in line with the new European standards (EN50131 / BS EN 50131-1), with their implications summarised in a new appendix. The coverage has also been carefully matched to the requirements of the new Knowledge of Security and Emergency Alarm Systems from City a Guilds (1852). * An hugely popular practical guide for installation engineers and security professionals now in its third edition * Essential reading for managers responsible for the commissioning and maintenance of security alarm systems * Third edition is fully matched to the new European standards (EN50131 / BS EN 50131-1) * Coverage meets City a Guilds specifications for the new 1852 Security Alarm courseThe open-circuit voltage of any fully charged leada€“acid cell is just over 2.1 V, so a 6V battery with three cells in series would have an open-circuit voltage of 6.3 V, and a 12V six cell battery would have a voltage of 12.6 V. Capacity is more complex. ... of available energy is dependent on the discharge current, the temperature, the end or cut-off voltage and general history and condition of the battery.

Title:Intruder Alarms
Author:Gerard Honey
Publisher:Newnes - 2007-03-26


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