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

  • State Suggested Answer
  • Locked Locked
  • Replies 8 replies
  • Helpful Answers 1 Helpful answer
  • Subscribers 37 subscribers
  • Views 1450 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

Bonding.

Zoomup

I am concerned about exposed-conductive-parts and extraneous-conductive-parts and bonding. If a metal road drain cover is located next to, and in reach of a metal street light column, should the two be bonded together?

  • 0
    Zoomup said:
    should the two be bonded together?

    Not for LV installations. It might be different in special circumstances if we are considering HV installations (BS EN 50522/BS EN 61936-1) or considering rail traction supplies.

    In BS 7671, Reg 714.411.3.1.2 covers this precise scenario.

  • 0

    Only in Britain. The rest of the planet might paint the lamp post, but the thing most likely by about 3 orders of magnitude to do you lethal injury, or just any injury, is a car. And the problem is kinetic energy, not electrical.

    Mike.

  • 0 in reply to mapj1
    mapj1 said:
    but the thing most likely by about 3 orders of magnitude to do you lethal injury, or just any injury, is a car.

    Thumbsup

  • 0

    Only if the gulley is inside a building...

       - Andy.

  • 0 in reply to AJJewsbury

    Really? How is that achievable?

    Z.

  • 0 in reply to Zoomup
    Zoomup said:
    Really? How is that achievable?

    Well, within road tunnels, if the drainage system gulleys and pipes (and those of other services) are metal, you will often find those bonded in various places to the electrical services ... multiple times if there are a number of load-centres, e.g. shafts, but unless there's metal-metal contact between the metal drainage pipes and grid iron, probably the grid iron wouldn't be bonded.

  • 0

    I am envisaging someone extending this thought to metal window frames, doohandles and letterplates now

  • 0 in reply to ebee
    ebee said:
    I am envisaging someone extending this thought to metal window frames, doohandles and letterplates now

    Noooooo !!!   Dizzy face

Community Rules & Guidelines