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I need to install a sensor which requires a "9-30V DC +/-10%" supply. Clearly i need to buy a transformer to step down the mains voltage, but does 9-30V mean the transformer could be, say, 12V or 24V, i.e. anything between 9 and 30V? Or does 9-30V mean something else? FYI, the sensor only has...

My previous electrician has wired three CAT/6 cables into a a one-gang-size box. The contractor has now been fired (for other reasons), and i'm trying to list outstanding works. My question is: can you get a one-gang-size termination plate with three RJ45 connectors? I couldn't see any on google...

Thought it best to start a new thread for this question. Most of you know the history, so i won't bother repeating it. If contractor digs her heals in and refuses to do the additional work for a fair price, what are the thoughts on here of getting my own spark in to do it? Any of you done sth...

Doing a complete house renovation. My contractor's electrician said he would normally just wire live and switched live at each light switch. Is it not considered standard practice these days to include neutral at the switch as well? 

I am having a house renovation done: loft conversion, single-storey side and rear extension and full internal refurb. Currently 3-bed semi in Harrow, NW London. However, I also asked the contractor to quote for some additional work: - Cat6/coax cabling - minor amendments to allow for my...

Had an EICR done the other day. Two C2s: metal faceplates and lack of main bonding. One C3: no RCD. Electrician told me to just change faceplates to plastic ones and sort out main bonding. I've been trying to figure out how to connect the 10mm G&Y (as there is no space on 4-way earth...

Hi, guys. Hopefully a very simple one for you, but i cannot figure it out myself.  I have three floors with one hallway/landing light on each floor. Ideally, i would like to be able to control all three lights from all three floors. To me, the simplest way would be a three-gang intermediate...