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Legislation


British Standards (BS4737, BS7042 and BS6799) which used to govern the specification, installation and maintenance of Intruder and Hold-up Alarm systems were phased out in favour of European Norms, known as EN50131. These replaced British Standards on 1st October 2005 and are supplemented by PD6662.

PD6662

Specifies use of UK standards where EN not published

EN 50131-1 Specifies system requirements

Equivalent to BS4737 Parts 1 and 2

EN50131-7 Application Guidelines

Equivalent to BS4737 Part 4

EN50136 Alarm Transmission

Part 1 specifies system requirements

DD243

BSI DD 243: 2002 is a code of practice for the installation and confirmation of intruder alarm systems designed to generate confirmed alarm conditions. The document was written in response to the ACPO Security Systems Policy 2000 published by the Association of Chief Police Officers, which became effective on October 1st 2001.

It means that if you supply intruder alarm systems that require a police response, you may need to dramatically change the way you design and/or install those systems. This applies to systems installed to BS4737, BS7042 or EN50131-1

In basic terms the policy covers four separate areas:

  • Primary design and configuration considerations.
  • Design, installation and configuration of intruder alarm systems incorporating alarm confirmation technology.
  • Other means of minimizing false alarms.
  • Handling of Alarm Information by ARCs (Alarm Receiving Centre)

ACPO Policy on Security Systems

For a security system to be recognized within the ACPO requirements it must comply with;

ACPO policy on responses to security systems
Recognized standard or code of practice controlling manufacture, installation, maintenance and operation.