What was red T&E used for ?
rather than grey or white ?
rather than grey or white ?
It is red to distinguish it from other twin and earth. In most alarm systems the detectors and call points can be wired in T+E, tho usually any colour will do. The bells and supply feed would have to be in fp or similar.
Red mini-trunking is also available.
Wouldn't it be important for the 240 v supply to be in fp or pyro etc in case of battery failure?
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