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No need to pay 1.25 in a shed, poundland had some in the other day.

It has to be an odd number of phases, a five phase system would be marginally better than three phase, but more complicated. Seven phase even better.

DO NOT UNDER ANY CIRCUMSTANCES CREATE A CABLE WITH A PLUG ON BOTH ENDS. This is obviously not the correct way to go about this, you would be massively cutting corners in terms of safety. If you make a cable with two plugs on it, anyone could come along and plug one end in and switch it on...

5 or 6A would be the correct fuse. Can you confirm whether you have an integral garage or is it a separate building from the house?

That's what i mean, yes.

Yes. Join the wires together with crimps or choc-blocks. Make sure you leave the pattress earthed though if it's metal.

Your best option might be a flush box with a rear entry, in place of the junction box. The current faceplate could be reused.

You don't specify whether your printer is inkjet or laser; whilst it's rare for inkjets to draw over 1A at a time, lasers can use 3-4A and it's important to check that you don't overload an extension block (Three computers and a laser nearly did for me)

Total harmonisation doesn't ever seem a likely prospect, plugs and all that...

Does connecting to the MET mean running a separate earth line from the Marquee frame straight back to the spike next to the generator (30m away)? I've heard that this cable should be as large as possible, am I looking at a 10mm^2 line? Am I right in thinking that this is something that not all...

Thanks for the reminder, I'd forgotten about the separate RCDs. Probably will go for something like: [code:1] -- RCD --- 6A MCB --- Lights ¦ Supply --- Main Isolator --- 16A MCB ---...

The generator will have an earth spike connected to it's frame. One earth for the whole system, making it TN-S (as far as I know). I'm planning to connect the frame of the (aluminium) marquee that the genny supplies to the same earth. Can you confirm this as correct? I've changed my mind...

IP68 Stuffing Glands and 2.5mm^2 Arctic cable all the way.

I'm certainly going to investigate what's at the other end with the site owner. For another part of the site, we're using a small (4kw) generator. I need to protect the generator from overcurrent, I'm pretty sure that the best way to do this is use a CU type box, with a 16A MCB, (feeding a 6A...

Yes (Although I'm not quite sure how you go about getting a replacement cover.)

Or indeed any digital camera if you don't have a camera phone. :)

I have seen lots of cables for sale on online auctions, sold as suitable for use when camping, which have a 16A plug for a Caravan type outlet, and then one or more non-RCD protected 13A sockets at the other end. I'm reliably informed that BS7671, section 608, requires a 30mA RCD to be...

NIC don't do the regs. Even though they might wish it was true, they don't have absolute power. The regs are all done by the Institute of Electrical Engineers.

Toolstation have a good variety of Clipsal Ingress Protected products. A list of Clipsal distributors can be found at http://www.schneider.co.uk/ (parent company). The list includes Edmundsons and CEF.

Sorry, perhaps I wasn't sufficiently clear. I was referring to 13A plug and socket. The plug in ceiling rose is a perfectly valid option.