"nightjar .uk.com" nightjar@insert my surname here wrote in message
...

"Blair" wrote in message
...
I have an underground cable controlling a water pump which supplies my
house
, The cable is armoured. Is it necessary to earth the metal armour
protection?

Definitely. There should be a brass tag for that purpose in the cable
gland
set.

Colin Bignell

Thanks for your reply.
I should have said that I have a metal junction box where the cable armour
is earthed as you say but I am proposing to change this to a plastic
junction box, and there will be no earth available.
Can I safely do this?
Blair