Widget for joining 3-core mains flex

Coleman · 2007-06-01T08:00:59+00:00

I am in the UK. I want to ask for info about joining 3-core mains flex on an appliance that may have to carry up to 3,000 Watts.I usually extend the mains flex by soldering but the finished join is too bulky when winding the flex or pulling it around a corner.When I make my 3 joints I slightly offset each one so that it is not beside another one. This helps make a slimmer overall joint but it makes for a longer joint (about 2.5 to 3 inches) and with insulating tape it is still too bulky.(A) Is it safe to use heat shrink insulating tubing for each join and have each join beside the other? Then I might use a single layer of insulating tape to bind over and protect the 3 joins.(B) Or is there some widget which can help with this? Perhaps a small moulding which is made up of three very small metal tubes held by moulded plastic to be close together but not touching. I could put a wire into each end of a metal tube and then solder the wires into it. (It's just an idea.)Any info?