tails entering a KMF

[robski]

If tails should be no longer than 3metres long and the cables entering a KMF need to be double insulated,what cable should be used when the distance from meter to consumer unit is 7 metres?

 

[Octopus]

Double insulated with a switch fuse at the DNO end.

 

[Spudnik]

Unless rcd protection is needed.

 

[Dunc]

Armoured all the way unless you can ensure that the cable is >50mm deep in the wall or otherwise protected against nails, screws and the like. 16mm 3C XLPE is my favourite on a 60A cartridge fuse but you'll have to do your cable and maximum demand calcs first to ensure compliance.