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Cheers guys, Its warped upon delivery and comes from manufacturer. I'll send it back and tile the walls instead. Cheers again

Happy new year all, I recently purchased laminated backsplash from B&Q. It is warped in both directions, which is preventing me from gluing it back to the wall. Length ways is not really a problem, but width ways is a real headache. I returned the first lot, but the replacements are just...

Crafty, the cables will definitely not be in any insulation. They would pass through approx 500mm from apex for no more than 1000mm. Would this be Ok?

The cables supplying my house are fixed to the external wall. They run across the back wall and feed another three houses. I'm having an extension built and have heard two conflicting storeys. I was led to believe that they could be built over (within the extension roof cavity). I've since...

Come on steveg, everyone knows its PSCC. :D Looks like u got the same certs as me.

No wind up sorry. pdcelec called it pssc and it is also called pssc on an example test cert i have obtained. Thought i was losing my marbles for a while then pdcelec edited his reply. Confusion now sorted thankyou.

Cheers my dears, many thanks for prompt responce. Why is abbreviation for Prospective Short Circuit Current PSSC?

Just trying to get to grips with testing, please go in depth regarding these test's if you please. Test cert is asking for two measurements PFC and PSSC. What point in the installation are these test's done? Have got a multifunction tester HT2000. Muchas gratiass or something like that.

Is the PSSC measurement concerned with the distributors part only?

Experts please answer quickly, most appreciated. Whats the difference between PSCC and PFC? Theres no punch line to follow by the way!!! Big big thanks in advance.

Cheers mapj1, thanks for taking the time.

Fitting a light under a porch/door canopy. Does it have to be RCD protected? Thankyou please!

Alright grumpy, im catching up slowly.

Well pardon me for breathing!!!! Whats the point in having a useful tool such as this when you cant get straight answers from certain people? I passed 16th edition in December 04 but this dosnt make me an expert by anybodies definition. I find the brown books a little hard to interpret...

So, just to recap then If my 1mm lighting cable is clipped to the side of the joist in the loft space and then covered with loft insulation, it is then considered to be completely surrounded by thermally insulating material and should therefore be derated by a factor of 0.5? The design...

I dont live in a log cabin either, but if anybody can clarify the first question i would really appreciate this?

Does reference method 4 on page 120 OSG mean that the cables in the loft must be in conduit or are they OK clipped direct to the sides of the joist as this will ensure that they are not completely surrounded by thermal insulation? Assuming that wood is classed as "Thermally Conductive"? Page...

Cheers Plugwash, I start tomorrow so will try and knock up the basics in black and white as I wade through and post them on here. I've been told that it wont be a sparky that inspects it anyway!

When I wire a Kitchen and bedroom extension, what will building control want from me?

On Kevin Boones cable calculator for a typical domestic ring circuit, it keeps telling me that I cant have a 32amp MCB protecting a 2.5mm ring main because the cable rating is only coming in at 27amps. Even 16th edition suggest's that this is a perfectly acceptable configuration? Can someone...