Hi Nick

Intruder alarms are covered by the following series of standards:

EN 50130 - Alarm systems
EN 50131 - Alarm systems. Intrusion Systems
EN 50132 - Alarm systems. CCTV surveillance systems for use in security 
applications.
EN 50133 - Alarm systems. Access control systems for use in security 
applications
EN 50134 - Alarm systems. Social alarm systems

They are all multipart standards but I do not have a current list - try BSI 
& their on-line catalogue at bsi.org.uk.

Also note that this type of product (as well as fire alarms) is under the 
general control of the Construction Products Directive, and that there are 
special EMC requirements in the standards (see EN 50130-4 in particular) - 
not just application of the generics.

The Loss Prevention Certification Board (LPCB) at Borehamwood specialise in 
testing and certifying alarm systems of these types and you may be able to 
get some general guidance from them.

Regards

John Allen

----------
From:   Nick Williams[SMTP:[email protected]]
Reply To:       Nick Williams
Sent:   28 April 1999 13:39
To:     [email protected]
Subject:        Alarm bell box

I've been asked to give an opinion on an intruder alarm bell box. EN
guidance (CENELEC report R079-001:1998) indicates that either EN60950 or
EN60065 may be appropriate for safety, and sooner or later I'll have to
make my own mind up as to which to choose. However, if there's anyone out
there would not mind telling me which standard they applied in similar
circumstances, I'd be grateful to hear from them.

The unit is a box intended for exterior wall mounting and it contains a
piezo sounder, xenon tube and associated circuitry including an anti-tamper
switch. Incoming supply is actually 12VDC so we won't officially claim
compliance with the Low Voltage Directive, but it would still be a good
idea to take a standards-based approach to the design.

Nick.

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