ByronBlack":2hg50eks said:so if I use the thicker 2.5mm core cable can I run that from the workshop and into a different socket in the house -If that would work, is this cable from screwfix the right one to use:
Sorry to rain on the parade but do not use the above "Twin and Earth" cabling. It is designed for internal permanent installations in trunking or behind studding etc. You can use an extension lead but it must be rated 30% above the expected current draw so you don't get voltage drop and it must be a Flexible cable and 50m of flex does not come cheap.
link to cable
This is 15A, you may need to go to 20A which is 2.5mm dia.