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Burglar/Intruder Alarm Cable

ebee

The thread about colour coding got me thinking.

Not wanting to hijack that thread though.

I was going to waffle on but determined to save you all from that.

So Burglar/Intruder alarms - hardwired not wireless.

We use 6 core alarm cable quite often but in the days before PIRs it was common to use 4 core.

Those having a set colour coding usually picked which colours were for which function and stuck with that.

Those starting their careers when 4 core was common (before PIRs were invented) had a slightly different mindset to those that started on 6 core because PIRs were already in vogue.

Anybody agree/disagree ?

 

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    6 core alarm cable is used for sensors in two ways:

    1. One pair for power, one pair for sensor, one pair for antitamper.

    2. One pair for sensor 1, one pair for sensor 2, one pair for antitamper – if both sensors are unpowered.

    4 core cables are still used for unpowered sensors. 8 and 10 core cables are also available for connecting multiple sensors.

    Some sophisticated sensors, such as IR beams, may require cables with more than 6 cores. 

    There are also the cables connecting the siren, remote keypads, and autodiallers to the main control unit.

    The colour code is not standardised nationally but is usually standardised by alarm installation companies. Burglars have taken advantage of this!

    Genuine alarm cable is manufactured to BS4737-3.30:2015. It must be used for the installation to comply with with BS4737. The use of telephone and ethernet cables is no longer acceptable although they are still commonly used for DIY installations, and by some electricians and telecomms technicians who have added burglar alarm installations to their repertoire of services.

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    6 core alarm cable is used for sensors in two ways:

    1. One pair for power, one pair for sensor, one pair for antitamper.

    2. One pair for sensor 1, one pair for sensor 2, one pair for antitamper – if both sensors are unpowered.

    4 core cables are still used for unpowered sensors. 8 and 10 core cables are also available for connecting multiple sensors.

    Some sophisticated sensors, such as IR beams, may require cables with more than 6 cores. 

    There are also the cables connecting the siren, remote keypads, and autodiallers to the main control unit.

    The colour code is not standardised nationally but is usually standardised by alarm installation companies. Burglars have taken advantage of this!

    Genuine alarm cable is manufactured to BS4737-3.30:2015. It must be used for the installation to comply with with BS4737. The use of telephone and ethernet cables is no longer acceptable although they are still commonly used for DIY installations, and by some electricians and telecomms technicians who have added burglar alarm installations to their repertoire of services.

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