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    LV fault tripping HV ring main unit

    Update on this, we have found out that there is a small panel within the switchroom that is connected to the RMU, no one on site knew about this and the guy that attended the initial fault and reset the RMU didn`t know either. It looks like a power supply with batteries but it is not labelled...
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    LV fault tripping HV ring main unit

    As far as I know it does not have any monitoring. There are no control cables between the main switchboard and the RMU
  3. D

    LV fault tripping HV ring main unit

    Thanks for that, we have a HV specialist coming on Monday, I will pass on your advice Thank you
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    LV fault tripping HV ring main unit

    I don't have access to that information, not allowed to access the HV side of the switchroom. The installation has been in use since 2006 and I assume the settings would not have been changed since then. The transformer supplies the switchboard via a 3200A ACB. I can investigate further in the...
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    LV fault tripping HV ring main unit

    Hi all, I have been on a site repairing damage caused by travellers collecting copper for the last week. We have found and replaced cabling to get the site up and running. Power has been on for a few days but today the 11KV ring main unit tripped. This feeds a transformer attached to the main...
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    Fuseboard change advice

    I use Partex numbers on each core and make notes on each cable as I disconnect from the old board
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    Good electricians hand book?

    Electricians guide to building regs will give you more information
  8. D

    no rcd for new shower.

    Sorry DPG, was reading on my phone in bed. Must have tapped the button by mistake
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    Chasing sockets brick blown

    I would use wall board adhesive, sticks to anything and dries rock hard
  10. D

    NICEIC Certification Scheme Niceic online 18th edition

    I have completed the online training with Learn Zone Media and waiting to sit the exam. They have cancelled the exam twice on me, now have to wait until 10th October. The training consists of the tutor reading the book to you and tells you which parts to highlight. They also provide an exam...
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    Opinions on job proposal

    No separate meter, they will rent the offices with power included
  12. D

    Opinions on job proposal

    Hi all, long time member but not many posts to my name. I would appreciate advice and opinions on a job I have been asked to do for a friend of a friend. I have been approached to carry out some electrical works at a funeral parlour. They want to convert the upstairs of the building into...
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    Buying IET Regulation books

    I got BS 7671, on site guide and guidance note 3 from NAPIT for £128.00 with free delivery
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    What cert to issue for smoke alarms

    On my last project we just created a simple Excel file for each apartment as per attached. The consultant was happy with this. The forum will not let me upload the Excel version, PM if you would like a copy
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    As installed drawings

    If you have a building layout drawing, you can use AutoCAD design review. It is a free download from AutoCAD. Load in the drawing and you can add simple shapes and text to the drawing. It will also work with PDF documents
  16. D

    Curry Chefs

    There are millions of Asians already here, why not train someone up
  17. D

    Advice on Telephone and Ethernet points please!

    CAT 7 is also available, will need 25mm tube though
  18. D

    oh dear oh dear progress eh

    Havells now own Crabtree and other brands, same gear, just a name change
  19. D

    Conduit ****

    Yes, the one with the big K. was there from 1987 up to about 1995 then occasional visits back for specific production line upgrades
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    Conduit ****

    This is a food factory, they have to wash down everything. Every panel was IP rated. Things could grow between cables on tray

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