Hi, I am wiring a series of mains interconnected smoke alarms using 3 -core and earth cable. The alarms do not have an earth terminal.
This wiring plan was suggested as it would avoid using the earth for the interconnection wire, and therefore potentially confusing anyone else examining the wiring.
Am intending to connect the black to the line (with a brown sleeve), brown to neutral, and grey to the interconnect, but what to do with the (unused) earth wire?
I could connect it up along the smoke alarm junction boxes, but I think this would be dangerous, as although it would be connected at one end to the consumer unit, nothing else would be connected to it. I could trim it back to the flex which might be better. I understand you can get special interconnect wire, but it is probably better in the protective sleeve that comes with conventional cable.
Any ideas please?
Thanks.
This wiring plan was suggested as it would avoid using the earth for the interconnection wire, and therefore potentially confusing anyone else examining the wiring.
Am intending to connect the black to the line (with a brown sleeve), brown to neutral, and grey to the interconnect, but what to do with the (unused) earth wire?
I could connect it up along the smoke alarm junction boxes, but I think this would be dangerous, as although it would be connected at one end to the consumer unit, nothing else would be connected to it. I could trim it back to the flex which might be better. I understand you can get special interconnect wire, but it is probably better in the protective sleeve that comes with conventional cable.
Any ideas please?
Thanks.