How can I repair the lead when I have cut through it by mistake?

One of these...

http://cpc.farnell.com/productimages/farnell/standard/42409390.jpg

Or shorten the existing cable - whichever method you go for you will need to have some confidence with hand tools - and actually have hand tools.

If you use the (permaplug) in-line plug/socket approach make sure the male piece is connected to the device and the female socket to the mains-plug side of the cable.

Peccavi
May 2010