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 13 replies
  • Subscribers 31 subscribers
  • Views 1068 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

Cable ladder bonding

mrf
429eea9f08a4e6aa0aeb5605908220c1-huge-sketch-7.png

Saw this recently on site, there is a bond across every cable ladder joint. I do not believe that this is necessary as this is not an exposed-conductive-part or an extraneous-conductive-part. Am I right? 


mrf
Parents
  • 0
    This is just a length of ladder in a plantroom carrying armoured cables. It is not extraneous, it is not used as a CPC. My thought was that the braiding is superfluous and your responses give me heart that I am not alone.?

    ..and yet almost every specification I see calls for it...



     


    Mine don't - except where the containment system has deliberate fishplate joints for variable angles to be adopted, where the ladder or tray may be discontinuous and where I actually wan to introduce a bond (if the containment is extraneous)





    Glad to hear it. Sadly, almost every specification I see does, and these are specs from big multinational companies.


    Thanks for your input everybody.


    mrf
Reply
  • 0
    This is just a length of ladder in a plantroom carrying armoured cables. It is not extraneous, it is not used as a CPC. My thought was that the braiding is superfluous and your responses give me heart that I am not alone.?

    ..and yet almost every specification I see calls for it...



     


    Mine don't - except where the containment system has deliberate fishplate joints for variable angles to be adopted, where the ladder or tray may be discontinuous and where I actually wan to introduce a bond (if the containment is extraneous)





    Glad to hear it. Sadly, almost every specification I see does, and these are specs from big multinational companies.


    Thanks for your input everybody.


    mrf
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