The IET is carrying out some important updates between 17-30 April and all of our websites will be view only. For more information, read this Announcement

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 22 replies
  • Subscribers 31 subscribers
  • Views 11891 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Bonding both sides of an swa cable

MrJack96
Is it necessary to bond both sides of an armoured cable if it’s not being used as a CPC and if you bond it at the supply side of an electrical motor starter panel is there anything in the regs where it should be bonded too or can it just be bolted to the chassis stud using a 6mm fly lead off the gland. 


thanks for your help in advance guys.
Parents
  • 0
    are you relying on the earthed armour to avoid having to have an RCD at the origin, and or conduit or a visible route?


    If so it should be earthed at the supply end.  It need not be bonded at the load end, but unless you are creating a TT island you normally would connect to the CPC at both ends, it just lowers the effective CPC resistance a bit, and it is also good practice from an EMC point of view.

    Regs do not oblige you to earth at one end or the other or indeed in the middle, but requiring ADS to work normally means you do.
Reply
  • 0
    are you relying on the earthed armour to avoid having to have an RCD at the origin, and or conduit or a visible route?


    If so it should be earthed at the supply end.  It need not be bonded at the load end, but unless you are creating a TT island you normally would connect to the CPC at both ends, it just lowers the effective CPC resistance a bit, and it is also good practice from an EMC point of view.

    Regs do not oblige you to earth at one end or the other or indeed in the middle, but requiring ADS to work normally means you do.
Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines