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I have a wet UFH to wire up. Its all been plumbed in, and the plumbers have long gone, so I can't ask them these questions, so I hope some one here could advise. The existing heating system is an s plan A single zone wet underfloor heating zone needs to be added, so an S plan Plus. The heating...

MPB only 6mm and nice to fill cert in correctly

I did actually phone the DNO, (with little hope) to see if they had any records, but of course they said they don't have such information

Bit more info Its central London (Westminster) Ze of 0.09 PEFC 2.5 kA PSCC 2.5 kA So doubt a TT Readings made me think TNCS but connection/separation must be under the pavement Earthing conductor taped to the supply cable disappears in a hole in the basement wall, seemingly connected under the...

Is this a TN-S do you think.

I disliked the early RCBOs. They were difficult to fit into the board, and getting the conductor in was troublesome. The new mini range by Hager, I use these a lot I pay £24.60 each These fuse board might be in use for the next 30+ years So a board might cost £400, whats that, £13 a year We...

It is , and the neutral must be joined inside the henley. (Ive only been sent a photo, so not seen) You can just about see the tails coming out of the left side

Ive had issues with BG and will not use them any more. Its the main switch that was the problem Ive had two fail on tightening the screws, and this is with a torque screwdriver. The mechanism gives way

Thanks

Thanks for the very good and clear response

Thanks again With just one neutral , I was wondering about overloading the neutral. But the neutral is not the (only) return path, as such ,the phase difference enables the return. And the neutral current will not exceed the phase current, as you say ( with caveat) And if the phase current is...

Thank you for taking the time to answer my questions, really appreciated. So, in real life situations, current on the neutral is to be expected. I will play around with the formulas you gave , so I can work out your answers

Three phase and neutral supply Makes my mind boggle a bit. any guidance appreciated In a three phase system, the return path is the phase difference? In a three phase and neutral the return path is the phase difference, and the neutral is there if you need a single phase load? Any current...

It is a dimming pack, and a V pro (Very good yes) would not be suitable as its a period dome type switch, so I needed to install a retractive toggle switch into the dome, dimmed by a dimming pack. I spoke with the manufacturers about the issue with the pack not working with the load, and they...

I have a bathroom lighting circuit with four 10 watt LED lamps. The dimming pack will not work with this load, ( Nothing lights up) though it does if I add a filament lamp. I want to try adding a resistor to the circuit, but wonder about the best way to do this i.e location and installation. Any...

Thank you very much, I really appreciate your time and effort.

Thank you I gone with one psu for the whole thing. (I need this to be a simple as possible) So its the pink and gray wire i need to connect to. Sorry to be so dim , but how do I wire the push to exit to the relay. Really appreciate your help on this BTW

Hello again Sorry still struggling with this I can't work out how to connect the ESP tag to open the mag lock. I have draw in the + and - between the two devices. Would really appreciate some guidance Many thanks

Thanks for the reply Its the switching of the mag lock powered from one PSU from a phone powered from another PSU which is causing me a bit of confussion Would you know link to a wiring guide for such a set up

Would that be the '89' dc relay I was hoping I could do away with the bell 212 PSU and use the EZtag PSU as it appears that it can output 12 dc or 12 v ac ?