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 48 replies
  • Subscribers 26 subscribers
  • Views 1824 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

Safe Disconnection to Undertake Work.

Zoomup
Scene. An old farm building now used as a double glazing frame maker's workshop.


The supply comes from an old shed about 40 metres away, where the meter is. The old shed has some 70s/80s rusty M.E.M. isolators that feed several S.W.A. cables that exist the shed in many directions underground. I suspect that one feeds the main farmhouse, another a rented cottage and the others various farm buildings. There is no clear labelling of the isolators.


What is the best way to locate the frame maker's  building supply where I have to work?


Somewhere I have a circuit i/d set, if I can find it, but that will need access to the live parts and I do not wish to turn off the wrong isolator.


Z.


  • 0
    I suggest you walk Z. You are not the guy to do this kind of thing, and there is little to gain from doing it anyway. In this kind of case, direct DNO kind of experience is very useful as is some more PPE. However, in view of your last post, this is not the job for you. Stay safe.


    Regards

    David
  • 0
    Job done. Hooray. Thanks for the advice all. I noted Mike's suggestion ref. S.W.A. sizes and markings. I could not see any markings but I measured the cables o/d  sizes. That left me with three possibilities in the meter shed, but no cable there had an external  protective conductor running with it.


    So, I had a walk around the farm and there were no animals just lots of sheds and outbuildings. There was nobody to be seen. I saw many S.W.A. cables entering sheds and other buildings close to where the window man has his workshop. It appeared that the supply came from a locked shed then onto the window man's workshop. The place looked deserted. Today I noticed a planning notice to change use from agricultural to other uses, perhaps the owner is going to rent out the outbuildings.


    With nobody working there and no animals to kill I took Bod's advice and turned off one likely switch fuse by the meter. What could I lose?


    Blow me, when I went back to the window man's workshop I found that it was the correct one. The old switch fuse had no provision for locking off, so I removed the fuses and hid them safely away.


    I checked for a dead supply using three different tests. All dead. I was then able to connect up the new 4 way three phase distribution board easily. The Zs is 0.53 Ohms at the existing board in the window man's workshop. The earthing is P.M.E., which initially found strange for a farm.


    Z.


  • 0
    davezawadi (David Stone):

    I suggest you walk Z. You are not the guy to do this kind of thing, and there is little to gain from doing it anyway. In this kind of case, direct DNO kind of experience is very useful as is some more PPE. However, in view of your last post, this is not the job for you. Stay safe.


    Regards

    David


    Oh ye of little faith! I may be slow and deliberate in my approach to work but I don't like to give up. Most situations can be safely overcome, it was just that initially I did not have the complete picture. I learned a lot this morning before approaching the job just by walking around and quietly observing on my own before opening my tool box. I have done three phase work before and factory maintenance so I am not a complete novice. And...........I kept all of my original hair. No shocks or explosions occurred.


    Z.


     


  • 0
    Yay you got it sorted well thats a good end to your week its all good I guess PME on a farm is OK if there are no aminals about
  • 0
    Kelly Marie Angel:

    Yay you got it sorted well thats a good end to your week its all good I guess PME on a farm is OK if there are no aminals about 


    Hello Kelly, yes, some farmers have had a hard time of things and want to diversify so are selling land or renting out "units" to get an income.


    Z.


  • Former Community Member
    0 Former Community Member
    all of my natural hair


    Yikes!


    It didn't take long residency to grow "unnatural hair" then!!!!!


    Regards


    BAD


  • 0
    perspicacious:
    all of my natural hair


    Yikes!


    It didn't take long residency to grow "unnatural hair" then!!!!!


    Regards


    BAD


     


    There is always the periwig de la poitrine.


    Z.


  • Former Community Member
    0 Former Community Member
    periwig de la poitrine


    A la "Steve Austin"?


    Regards


    BOD
  • 0
    Zoomup:

    I kept all of my original hair. No shocks or explosions occurred.


    You and BOD are getting very unruly. ?


    What I want to know is whether the motors will go round and round in the correct direction. ?


  • Former Community Member
    0 Former Community Member
    You and BOD are getting very unruly. ?

    What I want to know is whether the motors will go round and round in the correct direction.


    Best ask Verna Hills!!


    I'll get my coat.....................


    Regards


    BAD

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