Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 71 replies
  • Subscribers 32 subscribers
  • Views 18934 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

S.W.A. Armour Earthing.

Zoomup
Which regulations(s) require the steel wire armouring of a S.W.A. cable to be earthed if it is NOT used as a circuit protective conductor?


Case 1. Cable buried underground.


Case 2. Cable NOT buried underground.


Z.
Parents
  • 0
    Nice diagram! Screw connection between G/Y and earthing nut doesn't seem to be accessible for inspection & maintenance though (526.3).


    I can't help thinking it would be simpler just to gland into an insulating box - boot prevents the gland being accessible outside (and a cable tie to prevent the boot being removed without a tool if you prefer) - gland accessible for testing from inside the box after lid removed (using a tool).


    I see we're relying on the sheath of the SWA to provide insulation of the TN earthed armour within the TT environment....


      - Andy.
Reply
  • 0
    Nice diagram! Screw connection between G/Y and earthing nut doesn't seem to be accessible for inspection & maintenance though (526.3).


    I can't help thinking it would be simpler just to gland into an insulating box - boot prevents the gland being accessible outside (and a cable tie to prevent the boot being removed without a tool if you prefer) - gland accessible for testing from inside the box after lid removed (using a tool).


    I see we're relying on the sheath of the SWA to provide insulation of the TN earthed armour within the TT environment....


      - Andy.
Children
No Data

Community Rules & Guidelines