PD 6662, the document describing how the European standards for Intrusion and Hold-up Alarm Systems (I&HAS) should be applied in the UK, has been revised. This guide describes the changes between PD 6662:2010, incorporating amendments, and PD 6662:2017. The revision takes into account the publication of a number of new, revised or amended European standards. It also adds some new standards and documents published by the British Standards Institute that add or vary requirements for alarm confirmation, commissioning and maintenance and false alarm management.
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