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disconnected

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  1. D

    Buzzing RCBO

    Staff accommodation in a large hotel, was asked by maintenance guy to look at a DB. MK board with 3x RCBO's serving rings, and the rest lighting MCB's. One of the RCBO's was making a very noticeable buzzing noise,but otherwise worked fine. Disconnected cables and the buzzing stopped, IR...
  2. D

    Fault on ring main

    My in laws recently returned from holiday to find that their downstairs ring main was off.when I looked the mcb for this circuit was in the odd position and on trying to switch on it tripped the main rcd switch for this set of circuits.after first unplugging any appliances and this not resolving...
  3. P

    Tragic IR fail on EICR

    Hello all, I could use some help here: I was recently asked to do an EICR at a small warehouse/office unit. The installation was, to put it mildly, less than satisfactory; with multiple C1 and C2 conditions. However, of greatest concern to me were the insulation resistance readings I was...
  4. J

    "disconnected" old immersion heater point gives a reading on fluke tester

    A relative has asked me to install an electric shower. He suggested i use an old electrical point that used to be used for an immersion heater, but has now been plated off with a blank plate and the live and neutral wire inside have been taped off with red insulation tape. I used my fluke clamp...
  5. B

    Today's "easy job"

    Got a "easy job" today... Lights (LEDs) at the bottom of the road at a hotel signs were flashing "like a disco". Odd I though, possibly bulbs on there way out, proceeded to the hotel. Spoke to the owner and switched on the lights. They go round a car park and down the access road to the signs...
  6. S

    2volts on a disconnected cable?!?

    I've recently been sent to complete a re wire for another contractor and there is a cable which isn't connected to the consumer unit which shows 2volts on it! is there a reason for this? I'd it potentially dangerous? How can I correct it? It's on one leg off the ring main in the kitchen. Any...
  7. D

    230v on disconnected ring neutrals

    Hi all Hope everyone enjoyed wknd. My day been spent trying to get head in testing books to prepare for exams. Not got much testing experience so trying to make most of time and testing a few circuits I indoors. Probably missing something really obvious but this bothering me a bit. When...
  8. M

    Advice please - supply to shed disconnected after consumer unit upgrade

    Hi all, I was hoping to ask a couple of questions and take advantage of your collective knowledge and recommendations. If this is in the wrong forum please move. I’ve recently moved into a new house, as part of the sale the vendor had the old fuse board replaced with a new consumer unit...
  9. J

    Ring Main Tripping RCD, Line to Earth reads 0

    Hi All, Will post an introduction on the new members forum but need to blurt out my question while its still in my head. Me and Mrs JimmyB1988 have moved into our first house, it has a split consumer unit, half on RCD half not, my sockets were on the half without an RCD. One breaker does all...
  10. J

    earth is floating to 117v when disconnected at distrution board - help

    hello Ive removed a dozen 'dead' cables from behind trunking, split the lighting earth from the radial earth, verified r1,rn,r2 back to dis-board yet when I pull the earth at the disboard it floats up to 117volts ??? can't believe the 20m of shared conduit run would cause this. just can't...
  11. B

    Rcd tripping problem

    Hi guys this is my first post,so please go gentle. i have recently finished a large domestic installation,which was put into service, after initial verification and all subsequent tests carried out with satisfactory results. Now unfortunately I wasn't the last trade on site and now I have a...
  12. B

    New boiler installation

    Evening everyone this is my first post on the forum, would just like your opinions and any experience you've had with this situation, I was called by a friend of mine this evening who has just had a boiler installed on one of the new schemes that seem to be everywhere at the moment, he told me...
  13. C

    Voltage up to 100v on CPC even when disconnected

    Hi I've never posted in one of these forums before, but have read lots of threads and found them extremely helpful. So it makes sense seeing as I know the knowledge on this sight is very impressive to ask you guys for help. I have a problem with a job and can't work out what the problem is I've...
  14. 7

    info sought just bought storage unit where electrics been disconnected by warrant

    Hi Guys I have just bought myself a wee fixer upper storage unit in fife .The unit has previously had mains electric but was disconnected in may 2012 according to a card i found next to the meter box . At some stage i might fancy getting the mains reconnected even if its just for decent lights...
  15. C

    cyclinder stat blowing fuse

    Called out by a plumber I do work for. He had recently installed a new zone valve and chaged CH/HW programmer. A fortnight later the customer calls him because he has lost all heating. Plumber turns up, realises 3A fuse has blown in switched fused spur. He can't change it without it blowing...
  16. R

    Notification of a disconnected circuit

    Do I need to notify the disconnection of a shower circuit? I have disconnected and made safe at the consumer unit and confirmed at the business end that the circuit is de-energised. If I do need to notify, on what basis am I doing so? Alteration in a special location? Sage advice/experience...
  17. A

    Untraceable/unknown circuits

    Upon testing an installation after a fuse board change there are 2 x circuits which ate untraceable. I have left them connected but was just wondering if these circuits would be noted down in the departures from bs7671 box on the install cert??
  18. imago

    Labelling/marking disconnected cables?

    I'm changing a CU (with other work) and one of the rings feeds the shed at the bottom of the garden. It's 2.5 T&E which runs from the CU into the ceiling, down the kitchen wall, then into the floor slab using corrogated plastic conduit. From there it runs underground for about 30 metres too the...
  19. S

    Mains Disconnected and parallel connected generation switchgear

    Hi, I am new so I need to get some posts going. I am not a registered spark I am more of a technical contracts engineer. I am looking at if it possible to have a generator which backs up the mains supply (auto change over) but also is connected in parallel so can export to the grid. I am not...
  20. N

    Question regarding neutral for Ring final Circuit.

    I am carrying out the continuity for a ring final test for a single phase TN-S system. When doing the end to end Neutral I don't get a reading!! What is wrong here and what Code does apply (Code 1-3)? Many Thanks.

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