I haven't done any tests yet, it was 4.30pm on Friday and I didn't want to start anything I had no chance of finishing. I think one 4mm would be adequate, the run can't be more than about 10 meters.
Tel - it's not a RFC, the feeders are joined in a JB and the ring is taken from there.
I was at a job on Friday in a big 4 storey house. One of the jobs I was there to do was to add sockets to a bedroom which actually didn't have any at all. The top floor sockets were on there own breaker, a 32A RCBO actually. There were two 4mm^2 T&Es at the RCBO so I initially thought it was...
If the socket no longer needs to be there then I'd remove it, because this example illustrates folk will always be tempted to plug random stuff into unused outlets, even in an airing cupboard. In my own house, the washing machine is in the airing cupboard at the bottom of the bath. It was...
MR16s use a tranformer to step the voltage down to 12v, and they usually need a minimum load on them to function. Your new lamp is an LED, hence is drawing far less than the old one, probably below the minimum the transformer needs to operate. In short, you either need to buy a different lamp...
I saw the same issue recently, but someone had tapped into a socket to run a cpc to the only light fitting that actually needed one. The run didn't look particularly easy either. If I was going to go to that sort of length I'd probably prefer just to rewire the circuit and do a proper job. On...
In my own house, in addition to the mains CO alarm in the kitchen (where the boiler is located), I have battery detectors in our bedroom and our son's bedroom. I am a bit paranoid though. The owners of a nearby Chinese takeaway lived in the flat above the shop and the whole family were killed...
The system in my house uses Kidde Firex (older ones), the CO alarm is on the same circuit but not interlinked. The reason I didn't interlink at the time was (I think) it operated at a different signal voltage to the smokes and wasn't compatible? My memory is a bit sketchy though.
Is the kitchen separated from the stairs or landing/hall (circulation area) by a door? If not, there must be a heat alarm in the kitchen. However, I always fit them regardless.
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