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Hi, I recently took the City & Guilds PV course. I haven't done an install yet but i've been to take a look at some possible jobs. At one of the jobs i noticed there was no spare way in the main consumer unit. There was however a smaller 2 way consumer unit spurred off the supply tails via a...

Hi everybody I have a Mira Zest shower which seems to have a temperature regulation problem. It either runs stone cold or boiling hot with no in-between. Does anybody have any clues as to what the problem could be? Thanks.

Hi. I have an open circuit on the neutral conductor when testing ring continuity. I've taken off all the socket fronts i could find but didn't locate the problem. I know i've got to find it but in the meantime what's the worst case scenario if this situation is left as is until i can find the...

hi, I'm testng a ring main and on the Zs 'no trip test' using a Megger the RCD keeps tripping. Anybody have any ideas why this could be? R1, Rn and R2 ring continuity all fine and polarity at all all sockets good. Ring is about 85m long. Thanks

Hi, I'm getting a driveway laid on a piece of my lawn to park my van on. The builder has taken away the top soil and levelled it out and says it's now waiting for the concrete of which there will be 4 inches. I asked about a layer of hardcore but he insisted it was not required. Am i being...

Hi, to settle an argument please... In an economy 7 installation, even though there may be 2 CU's (1 for heaters, immersion etc, 1 for normal everyday circuits) all electrickery used in the off peak time will be at the off peak rate regardless of which circuit is drawing a load. For example if...

hi, Does anybody know where it's possible to buy 4.0mm 3 core hi-tuf cable from? I used to get it from TLC but they dont do it anymore. Thanks.

Hi, When testing a TT installation, if Ze is well below 200 ohms and r1 +r2 less than 1ohm for each circuit, is there really any need to measure Zs for each circuit? I can understand the need to measure Zs in a TNCS installation for example because there are tabulated values which it must be...

hello everyone, I've got to go and check out a problem at a recording studio that has a problem with 'buzzing' thru the speakers when the air con is switched on. This problem never occurred before the air con was installed. My first guess is that when it was installed they've layed the power...

hello. I'm putting in some collingwood remote controlled tristar colourchange LED lighting in a garden but there's no wiring instructions and this is the first time i've put some of these in. Each Tristar lamp has 4 wires - red, black, green and white. I'm assuming red and black eventually go...

I have a customer who wants a gas hob removing and replacing with an electric hob (dont ask). Underneath the worktop below the hob is the gas pipe including an isolating valve. Is it sufficient for me to simply turn of the supply via the valve and cut the pipe and then remove the hob or do i...

Hi, I'm about to put 6 or 7 LV downlights in a ceiling. I'm aware that the insulation in the roof space above needs to be kept away from the lights. Does anybody know of any proprietary 'box' type structure that exists that can fit over each of the lights so the insulation can then be placed...

Hello, The wall in my bathroom is lathe and plaster and as such i'm a little reluctant to chase the cable in the wall in case it disintegrates! Am i allowed to run the cable from the ceiling down to the shower unit inside plastic trunking? I've looked at the regs and I cant spot anything that...