it was another poor attempt,im not cut out for comedy 

Wasn't meaning you Gaz.

 

But yes, v poor.

Wasn't meaning you Gaz.

 

But yes, v poor.

i will try harder im running out of coats...

i will try harder im running out of coats...

Thats better. lol

look am only asking a few daft questions,

 

alarms are in general piss easy, for a general systems you have 8 zones, each zone is a detector or door contact(reed switch).

 

Most systems are normally closed meaning if a high resistance is detected an alarm activation occurs.

 

Unlike door sensors detectors are also powered by 12V, and you wire the tamper through all detecotrs in a daisy chain method.

 

Batteries are in most cases as little as 1.2Ah 12v and as high as 7Ah for larger panels 

 

You can also get more advanced detecors like volumetric detecors that work on volume aswell as just heat and sideways movement.

 

You can get filters with detecors to stop false alarms from white light sources 

 

Sounders can be wired using a single 6 core cable or 2 x 4 core cables, connection include strobe, bell +, bell -, Tr-, V+

 

You can include a dialler system by hard wiring to two pins on the bt line, and the negative bell trigger on the external sounder to get it toi call out!

Everyday's a school day.

 

Makes you wonder why questions are asked if it's 'piss easy'.

look am only asking a few daft questions,

 

alarms are in general piss easy, for a general systems you have 8 zones, each zone is a detector or door contact(reed switch).

 

Most systems are normally closed meaning if a high resistance is detected an alarm activation occurs.

 

Unlike door sensors detectors are also powered by 12V, and you wire the tamper through all detecotrs in a daisy chain method.

 

Batteries are in most cases as little as 1.2Ah 12v and as high as 7Ah for larger panels 

 

You can also get more advanced detecors like volumetric detecors that work on volume aswell as just heat and sideways movement.

 

You can get filters with detecors to stop false alarms from white light sources 

 

Sounders can be wired using a single 6 core cable or 2 x 4 core cables, connection include strobe, bell +, bell -, Tr-, V+

 

You can include a dialler system by hard wiring to two pins on the bt line, and the negative bell trigger on the external sounder to get it toi call out!

you little tinker 

do any of you guys know how to carry out a load assessment on a whole building and why it's important, or what phase rotation is?, or what the skin effect on a cable is?, or why it is important to balance phases on a distribution board?

2 x 4 core ? They also sell 8 core.

Thats better. lol

ta,ive still got it....sniff

heres a good question would your security system be connected to an essential or non essential supply in a large commercial building like a hospital for instance?