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Probably a loose connection at the shower, shower isolator or the consumer unit but it could also be caused by water getting into the shower unit or just a knackered heating element. Turn off all the electric and confirm that the installation is dead, then remove the front of the shower and...

Good luck with that.. bare in mind that 300m of 120mm² 3c SWA weights about 1560kg, and the cost of 300m of just 16mm² 3c is £1.5k... :shock: 1.2Ohm/km

If there isn't enough length then you will need to use 2 butt crimps and a small length of suitable cable. I would never use spade or bullet crimps on mains electricity.

We've changed to the 17th edition now, not that it matters regarding test equipment but you must now work to the new edition of BS7671. Regarding test equipment you will need an insulation resistance tester, an RCD tester, a low resistance ohmmeter, an earth fault loop impedance tester, a...

What cables are under the insulation and what do they supply? What size are the cables? What device are these cables protected by and what is the rating in amps?

I think its quite the opposite. Many older generation sparks worked by the 'if it works its fine' attitude but due to new regulations such as Part P, significantly more newcomers to the trade are aware that testing and certification is a major part of the trade and so tend to be more willing to...

Your link doesn't work, this is what you want: http://www.diynot.com/network/nswk00377/albums/1537 The work looks shoddy, but we can't really tell much from the pictures. The hole in the wall has cables that look like they may run outside safe zone. The socket placed directly below the...

Electrical connections should always be accessible unless the connection is considered permanent (Crimped, soldered/brazed etc) but it is possible to test to confirm effective bonding - whether your inspector will consider this an acceptable substitute for actually seeing the connection is a...

400mm joist centres - £6.40 + VAT = £7.52 600mm joist centres - £7.10 + VAT = £8.34 Discounts available for 5+ If the loft brace is used with a JCC Fireguard fire rated fitting it extends the warranty from 12 months to 3 years

For a 1-way switch, it doesn't really matter which terminal the permanent live is connected to. Standard practice is to wire permanent live to C and switched live to L1 but it will work, and be completely safe wired the other way around. Ideally the switched live should be sleeved with a...

It isn't possible to perform all those tests with a multimeter. Set your multimeter to the resistance setting, and select the lowest range available. Isolate the power supply and remove both legs of the ring final circuit from the fuse/mcb, also remove the neutral and earth conductors from...

Check your DNO's website. My DNO (WPD) has a PDF on their site explaining their pricing methods. Eg: Installation Of HV Underground Cables 8.0 In trench prepared by customer £24 - £34 per metre 9.0 In highway footpath £61 - £71 per metre 10.0 In highway road £93 - £106 per metre 11.0 In...

change a socket plate in my kitchen? - yes put a new kitchen light up? - the key words are 'new' and 'kitchen' so no. change a bathroom fan? - yes

Care to give us a bit more info about what type of fault you are experiencing and what you are doing when you experience it, or are we supposed to guess? :wink:

The 100m² maximum floor area is just a rule of thumb to reduce the risk of too many appliances being connected to any one circuit and causing one leg to be overloaded for long periods of time. Further factors to consider when deciding on the floor area covered and the length of cable used is...

You are not wrong - it is totally acceptable to replace accessories (sockets,switches, even showers & cookers) on a like for like basis without notifying your BCO or employing an electrician. The issue is that with an old house a lot can happen in 15 years so there is no guarantee that the...

It's a simple job if the circuit has no safety issues such as damaged cables etc. How old is your house and when was it last rewired?

As suggested, an extractor fan is the best solution. Remove the moisture laden air before it has time to cause problems rather than having to solve the problems it causes. You could also take a look at these: Downlight Fire, Vapour & Thermal Seal Cap

As ricicle has said, 130w/m will not be sufficient for anything more than floorwarming in a conservatory. They do offer higher rating (I think it's closer to 300w/m) specifically for rooms with high heat-loss so that might be worth considering if you don't want to have panelheaters/radiators...

An RCBO will cut off the supply if you, or a member of your family, has the misfortune to become an earth rod. In that respect it will be safer to fit an RCBO than not to but the issue is that relying on current passing through a human body to operate a protective device is crazy. As you have...