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Following on from OP's original post, what causes my client's LV bathroom down lights to blow with regularity. ie within a few days of replacing the lamps. Could it be cheap transformers and if so what aspect of the transformer is at fault.

There are two small flats in this new build block. A one bedroom and a two bedroom. I will need three separate meters, one for each flat and one for the common parts. Will this require the DNO to fit three separate service heads? And can I ask the DNO to fit three isolators?

Thank you freddy...... interesting thread that. I am going to try vicks vapour rub first.

I tried that but could not afford to keep replacing the windows. Any other suggestions?

We have just built our house with new casement windows. The problem is that rooks have systematically pecked and removed the sealant between the glass and the frame. What can I do to stop this other than spend all day chasing them away?

Thanks chaps. I am going to turn it into 2 1 gang switches either side of the door. Client wants all the face plates to be the same ie not MK

I need a 2 gang switch but one of them needs to be an intermediate and one a 2 way. The range I am using does not have such a thing. Is there a way round this?

So a final circuit is being protected by both an MCB and an RCD and the circuit has a measured Zs low enough to trip the MCB within 0.4s and the RCD test showed 5*I of 20ms (0.02s) then the RCD will go first, only if it is an earth fault. If there is a short circuit fault then the MCB will go as...

They will be interlinked

Can you use two different makes of smoke alarms on the same circuit, both being mains-powered ionisation alarms with backup battery (but different makes as I said before).

Spose so. Thanks

So if you needed to use a 4 terminal JB (for lights say) and it will just not be accessible what is the way forward?

Does anyone know where I can get them.

A TT supply, tails from meter into Henley Block supplying house CU (split with main S100mA and 30mA side) and single 30mA RCD. This single RCD supplies (via SWA) garage supply which is a normal garage CU (30mA RCD main switch with a 16A and a 6A MCB) The garage has its own earth rod and has a...

Thank you gentlemen

Does anyone know where I can get plastic M3.5 screws?

Someone mentioned using a relay. Does this sound workable

Is there a way of doing 2 way switching when there is only one twin and earth cables run to each of the 2 switch positions from a JB?

Total run 60 m with 4 lights at about 16m intervals. Each light is 100W

16 m between lights. I have run the SWA from FSU underground exiting in a long loop at each bollard and ending at the gate light. The bollard lights did not come with a PIR so I bought seperate PIRs.