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Ian So you have really tested nothing, other than you no the RCD trips at 28mA. Would suggest you have not identified the problem and a bit more testing is required rather than "we will try this then try that" and hope the fault disappears?

Hutchie Do you have an RCD fitted?

Rewiring a 2 bed end terrace house does not come into the certification scheme, providing it is not part of other works for which a building warrant was obtained and you therefor have no need to contact building control. You can carry out the works yourself, however this is not recommended...

What is the nature of the work you are proposing to carry out? The certification process comes into being mainly where a building warrant is required. Do a search on this forum

Please don't misinterpret this question: I am not having a go... I am not Locking off the MCB would be a safe isolation proceedure, but does not eliminate a borrowed neutral situation. What would be safe isolation?

Appears I am not going to get an education today. My postings have been made in a light hearted mode with some knowledge. The picture show the cutters against a piece of 16mm and my assumption being that this is how they were damaged. This would have been the load current of the circuit...

"With a name like yours, you should really try to understand what happens during a short circuit " Im all ears awaiting your description

The fan installed will require to provide a number of air changes to meet with the building regulations. Im afraid fans are not tailor made for individual bathroom sizes and will run at the same speed all the time. Is this wind up time?

ricicle You a welder or what?

Must have been about 60A down the cable he cut?

Bri You still using a crank-up megger?

Is that 7/029 or 7/036 ???? and price in £sd please

RF What you on tonight? "Why are there 2 RCDs in series? That is not good circuit design. " OSG Fig 3a ?????????????????????????????? Must admit Mark did not detail what the set up was

"It does not comply with regulation 530.3.2" Check the definition of Appliance and Systems No point in quoting regs if you dont understand them

Mad Dr Its sounds like you want to partially flush a surface mounting back box. Rarely seen it done, but there are no reasons why not. You do not need to earth the plastic back box and if metal boxes are used, then, providing one lug is fixed, you do not need to earth it either

As the unit was made in Ireland, from Register of Eletrical Contractors of Ireland "Connecting Immersion Heaters Electrical Contractors are reminded of the need to check manufacturers instructions when connecting domestic dual immersion heaters incorporating a common thermostat for both...

Its a bit yes and no. What should happen is that where works are part of a building warrant then they are required to be signed off by an Certifier of Construction working for an Approved Company, which can be a sole trader. The company and the CoC need to be registered with either SELECT or...

Thanks Sparks Another case of manufactures wording to suit themselves, rather than fit a costly fuse in the fan

Ali Why are you using 1 A double pole pull cord 2 A FCU All you need is a single pole pull cord and a fan isolator switch

If your extension is being done with a building warrant, before you start,by an COC, assuming your in Scotland.