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Is it me or with that earth block external to the fuse board where is the earthing too the metal work of the actual fuse board itself. That's be a good one if it's an unearthed exposed conductive part! :shock:

Firstly you can't take the supply for your new outside light just from the switch since there isn't a neutral there. You will have to take a neutral from one of the light fittings on the ceiling and a switched live from the switch which you'll replace with the 2 gang switch. If i was doing it i...

Okay, reading the instructions i just want to clarify a few things. If the boiler is for central heating only then i assume there are no motorized valves in the system (is this correct?). Secondly, what make of room stat have you got and do you have a separate programmer? Does the programmer...

Unfortunately Crackers the big problems us sparkies come across all too often is bodged DIY jobs. We spend atleast 3 years at college learning our profession then a lifetime on site furthering our knowledge. The harsh reality is that you cannot learn the skills involved to carry out such an...

In my experience with these electric boilers the only time you need a contactor or relay is if there is an electric shower in the property as well. The idea is you use the same supply for both shower and boiler to ensure you can't use them at the same time and take out the supply authorities...

It's just chipboard similar to the stuff you use for flooring in the back of meter cupboards supplied by the builders merchants so surely that would be adequate.

I'm pretty sure Scolmore do 20A double pole switches for the mini grid range. It looks like that's what is there. The middle one supplying the fuse unit is the double pole one by the looks of it. Good stuff the Click range and carries a 20 year guarantee so would be surprised it's failed...

There's about a billion code 2's though! Proper job that one, i've seen better though. I'll see if i can find the picture of a place i went to change a room stat in in Grantham. Hadn't been touched since the 50's with a timber consumer unit (a piece of fine carpentry with veneered door) and...

Sounds a bit dodgy to me. Whenever i quote for a rewire i go through exactly what the customer wants, price it and then provide a full written spec more for my protection then anything else. Atleast if the customer asks for an extra socket here or there there can be no argument as to whether or...

Firstly your water bond would usually be 10mm based on a 16mm main earth from your cutout to the fuse board with 25mm live and neutral. The resistance should be less than or equal to 0.05ohms which would give you a maximum run (in theory) of around 30m. However, in reality you can go a fair bit...

The earths are at the back of the box there, the 2 blacks in the white heat proof sleeving are your neutrals and the black with the red is your switched live. As far as i can see the black earth bit is connected to the back of the box with the rest of the earths so shove some green and yellow...

To be perfectly honest rather then buying screened cable why not just ensure as far as is practically possible that your power and signal cables remain as far apart as possible on their route to each piece of equipment. Plus on any power cables that bit too long wind them in a figure of eight...

Sounds like it could be a neutral fault. Those neon screwdrivers are useless so get a proper test meter round it to see if you have 230V. I suppose if the screwdriver lights up when placed on the neutral terminal that could indicate a break in the neutral as the lack of potential would cause the...

I use a good calculation for sizing main earths for TT installations. It's usually the 'what have I got on the van' calculator meaning that most of mine are oversized as I generally only carry 10mm! :lol:

Assuming this isn't a joke CPC = Circuit Protective Conductor. Basically a bit of earth wire making up any mains power circuit also commonly known as the earth wire.

If you do find that you can fit an RCBO it'll work out cheaper to do that then buy a whole new consumer unit. One thing to note if you have an old Wylex board (as in timber backed) you cannot install any new cabling direct from that consumer unit as it does not satisfy current regulations. I'm...

Usually shower manufacturers state that you should not seal round the shower unit when you fit it as a small air gap is required to ensure the shower doesn't over heat. Make sure you do seal your pipe/cable entry if your dropping it down stud work or chasing it in to ensure you don't get water...

Okay, i agree with you on there being no reference to socket heights in BS7671. I'll agree with you I am definitely incorrect there. The onsite guide states on page 64 7.5.1 that: 'The guidance given in Approved Document M applies to all new dwellings. Note that if a dwelling is rewired...

Can't find a specific regulation having said that. Pretty sure it's in the onsite guide but during my last visit from my NIC area engineer they're taking the line that the new heights should be kept to. If it's a new installation like a rewire Part M will apply in this instance as should Part B...

If it's coming in to the building at too low a pressure for the shower there is nothing you can do to increase the pressure. If the pressure coming in to the property is good you may have a restriction of flow somewhere along the line (either due to scale build up in the pipe or valves not fully...