AJJewsbury:A supply to an alarm system or control system is definitely a power circuit. The function of the circuit is definitely not not "signalling and control".
My original example was for a smoke alarm circuit (no separate FCU) - the argument being that the function of the entire circuit was to provide a danger warning (signal) to occupants. Any signalling or control circuit must draw some power in order to operate. I agree a supply to a FCU to something which in turn might supply a signaling circuit is less clear.
On the other side of the coin, where would a power-over-ethernet (PoE) cable fit in this scheme? (especially one where only the power was used at the far end - say for a separate CCTV illuminator - so the data path was unused).
- Andy.
The circuit that provides power for the smoke alarms or alarm panel must be a power circuit, as it provides power to that equipment.
Otherwise, your proposed interpretation means that a power circuit that feeds an IT rack in a data centre is ITC cabling ...
AJJewsbury:A supply to an alarm system or control system is definitely a power circuit. The function of the circuit is definitely not not "signalling and control".
My original example was for a smoke alarm circuit (no separate FCU) - the argument being that the function of the entire circuit was to provide a danger warning (signal) to occupants. Any signalling or control circuit must draw some power in order to operate. I agree a supply to a FCU to something which in turn might supply a signaling circuit is less clear.
On the other side of the coin, where would a power-over-ethernet (PoE) cable fit in this scheme? (especially one where only the power was used at the far end - say for a separate CCTV illuminator - so the data path was unused).
- Andy.
The circuit that provides power for the smoke alarms or alarm panel must be a power circuit, as it provides power to that equipment.
Otherwise, your proposed interpretation means that a power circuit that feeds an IT rack in a data centre is ITC cabling ...
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