Wiring Rules

[arfur mo]

yep the old modern way.

Reading through this old thread just confirms to me why graded systems were inevitable.

thats an interesting perspective,

the fact it was not standard in any company used to be a way of offering a bit more security, as the thieves did not know for sure which wires to short out. these days with iD and EOL etc. the systems are inherently far tougher to by-pass with this method.

regs

alan

[Prince006]

i normally use 8 core cable for intallations as it leaves me with 2 spare cores, that way if something happened to any other cores, i know i will have 2 spares to use instead... quicker for fixing broken cables....

Big Dom

[arfur mo]

i normally use 8 core cable for intallations as it leaves me with 2 spare cores, that way if something happened to any other cores, i know i will have 2 spares to use instead... quicker for fixing broken cables....

Big Dom

it's a good policy especially on commercial other than a thicker cable to conceal, should you need another detector later on which often happens as the job changes owners, then you will have the capacity.

as for fault cover, still be careful to check the runs, as rodents or carpet fitters might have been at work, you can look a bit silly if the same cable has a fault which occurs within a short time.

regs

alan

[hpotter]

thats an interesting perspective,

the fact it was not standard in any company used to be a way of offering a bit more security, as the thieves did not know for sure which wires to short out. these days with iD and EOL etc. the systems are inherently far tougher to by-pass with this method.

regs

alan

Quite right, cant say I've ever been given a list of colours. But when you start working for a firm and your paired with another engineer, you do it his way.

Then (same firm), when you work with a different eng and find he does it the same as the first, your happy because you aint got to think, he's happy because he'll be off before rush hour.

Before u know it youve worked with loads of different engineers and they use the same colours. Then one day you get put on maintenance and thats when your really glad everyone uses the same colours.

But you are right, as far as my experience goes, no company gives out a standard set of clours.

[mark auto]

are people not over-reacting a little bit to others giving out what colours they use?? as has already been stated, theres no standard colour code and most engineers do it differently so whats the problem??

but just for the record i use red/black 12v, blue/yellow alarm, green/white tamper, except on unpowered devices where i use red/yellow for alarm, eliminates the chance of accidentally wiring the red/black pair into 12v........

[lawandorder]

are people not over-reacting a little bit to others giving out what colours they use?? as has already been stated, theres no standard colour code and most engineers do it differently so whats the problem??

but just for the record i use red/black 12v, blue/yellow alarm, green/white tamper, except on unpowered devices where i use red/yellow for alarm, eliminates the chance of accidentally wiring the red/black pair into 12v........

Only just read this thread and I can say that I used to use green/white for power, blu/blk tamper and red yell for alarm.

This tradition started when we used to fit mostly door contacts and pressure mats using four core.

When we fitted an electronic detector we used grn/white for power so we could keep the same convention for alarm and tamper.

Somebody mentioned using blank bell boxes as a means to enhance security.

One of the companies I worked for always fitted blank bell boxes to a certain chain of banks and when I asked why I was told it was so potential burglars couldn't try to corrupt a company engineer because they wouldn't know which company to target.

[hpotter]

are people not over-reacting a little bit to others giving out what colours they use?? as has already been stated, theres no standard colour code and most engineers do it differently so whats the problem??

but just for the record i use red/black 12v, blue/yellow alarm, green/white tamper, except on unpowered devices where i use red/yellow for alarm, eliminates the chance of accidentally wiring the red/black pair into 12v........

None. You do your risk assessment and take it from there. Thank heavens for EN (err, well when its finished).

[satsuma01]

are people not over-reacting a little bit to others giving out what colours they use?? as has already been stated, theres no standard colour code and most engineers do it differently so whats the problem??

but just for the record i use red/black 12v, blue/yellow alarm, green/white tamper, except on unpowered devices where i use red/yellow for alarm, eliminates the chance of accidentally wiring the red/black pair into 12v........

my colours are red/black 12v, yellow/blue alarm pair or eol pair as standard, and green white tamper or any other device on same cable through eol. on unpowered devices i use the yellow white as standard and never connect the red/black on that particular cable or cables.

[A-G]

my colours are red/black 12v, yellow/blue alarm pair or eol pair as standard, and green white tamper or any other device on same cable through eol. on unpowered devices i use the yellow white as standard and never connect the red/black on that particular cable or cables.

What do I do?

Well, the first thing I do is ....... I don't give out this kind of information about my alarm systems in the public area.

[satsuma01]

What do I do?

Well, the first thing I do is ....... I don't give out this kind of information about my alarm systems in the public area.

it aint exactly difficult to see if you take of a detector lid anyway the colours and pcb are marked so self explanitory !