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How is the cable run? Is it buried in plaster up the wall then across the ceiling? Is it bunched with other cables? Any contact with thermal insulation?

3.14 X radius squared will give you the CSA. That looks like 6mm CSA to me.

For better or worse, a PIR/EICR is supposed to record all significant departures (allowing for agreed limitations) from the "current edition" of BS7671. Now if that is completed sensibly then only immediate dangers would be a C1, only serious departures (but not immediate dangers) would be a...

Oh no, there I go now, attempting to broadcast locations of the holy grail :oops:

In fact, we worked recently on an old manor house which had a plastic oil tank connected via copper (not sure of the size but about 8mm diameter) pipe which was run inside yellow plastic gas pipe for about 30 meters underground. I decided that because it was running underground that it would be...

I think I have seen your work :twisted:

But that is my point. If we follow the rules for a CU (if I got that part right) then a missing blank does not comply with IPX2 or IPXXB so this is an issue but with what code? If you can accidentally contact a live busbar which is almost certainly going to be the case with most CU designs(not...

One way to do it is use a trunking "riser" for all cables that traverse the two floors. Trunking can be surface in an under-stairs cupboard or recessed just allowing access to the top cap. But while you may want to plan ahead it is best to ask your electrician first because he/she will need to...

Remembering a recent comment of your is another thread: What about Thermite!!

Yes but the missing CU blank may or may not allow easy accidental contact with live parts. Now technically (and I hope I am right in saying so without looking it up) a CU should have a top surface compliant with IPX4 or IPXXD and other surfaces of IPX2 or IPXXB which is quite objective. A...

true, a junior hacksaw blade could give you a "creative" finish :mrgreen:

Not the Evolution Fury!! It falls apart after three weeks!!

Do you mean the insulation over the downlight? If the downlight contains a 50 watt halogen that is surely a code 1 right? but what if it is an LED or a CFL? Now is the the wiring covered in insulation too? It is surely all about the details which we currently do not have. Don't forget...

Yes you need a dewalt (or equivalent) chopsaw with a fine blade on it. For worst possible results cut it with a grinder - horrible!!! Those people in the last picture look like they have been "reprimanded" Are they the four who have never used Unistrut? :mrgreen:

I feel that I should add that while my statement above is an ideal, in reality the domestic world is plagued by incredibly poor PIRs performed by people who have little experience, poor knowledge of BS7671 and an under developed ability to differentiate risk factors. Many of them performing a...

That's a valid perspective but in reality we are only (in this thread) coding on basic information. With a comprehensive investigation, actually seeing the details I would be willing to bet that all three opinions would tend to coalesce. It is important to keep in mind that PIRs should be...

The PIR has always offered subjectivity despite GN3. In my view anything that presents a risk of electric shock (direct or otherwise) or presents a risk of fire must be a code 1 and acted on immediately. The new EICR appears to go some way to provide more objectivity. But is defeated...

1 Blanks missing from spare ways in consumer unit Code 1 (if fingers can reach live parts) 2 Poor neutral connection at immersion heater stat Code1 (risk of fire) 3 Flex not secured in cord grip at immersion heater Code2 4 Exposed live connections in roof space above down lights Code1 5...

You really need to get two or three quotes by having an electrician's visit to see the details. What is a rough price worth if it could be plus or minus 25% inaccurate? A professional rewire for a house your size is going to be in the region of £2200. Having it empty with no carpets could...

Yes your conclusions are the same and correct I believe, though 0.049uF is equal to approximately 3.5mA. I only raised it because I thought you may have been conveying out of order fibonacci numbers providing a cryptic clue to the location of the holy grail which is what happens when you watch...