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  1. Y

    Need to update main line through house.

    I have a new combo meter box and 200A main shut off installed outside professionally. It has 4/0 service line coming into it and I have confirmation from the electric company that I am good for 200A service supplied to the house. Previously, there had been no main shut off. The new...
  2. R

    Can I run a 50 amp subpanel directly from main metered panel

    1990s home. 100 amp main feed. Nevada. 15 years mechanical experience on cars + motorcycles. Previous electric exp: I ran the other 50 amp 4-wire setup directly from the interior subpanel. Now I was told by an electrician when I was shopping around to get the above job done, and a 30 amp plug...
  3. teneke

    UK Main breaker keeps tripping, any ideas welcomed

    Hi all, I really hope this is the correct place in the forum. tldr; Oven and boiler take turns to trip the breaker, but I don't think it's either of them so any help would be greatly appreciated. Basically the main breaker keeps tripping in the house I'm renting. We've been living here for...
  4. J

    Uneven voltage on legs at main panel - troubleshooting?

    I have two main panels each 150amp breaker. House was built in 83 and lived here for 6 years no issues. About 6 months ago we had a power surge and our main ac fail (hard short) and tripped the breaker. Had the unit replaced but it seems since then we have had issues with lights diming and...
  5. txsmed

    Crouse-Hinds LW020PR Rainproof+ 200 amp main lug. Will it accept tandem 20 amp breakers?

    I need to free up space for a 50 amp breaker by combining 2 20 amp into a single tandom breaker. I can not find any information on this model number. Will this lug accept tandem breakers.
  6. E

    call out to ring main fault

    Called out to rental property i carried out an EICR on in March; this year to look at loss of power. Narrowed it down to the down stairs ring main, done end to ends and ring in tact, insulation resistance failed, dropped every socket and inspected the wiring and socket fronts which 2 i had to...
  7. The apprentice

    300 mA RCD main switch agricultural (tripping)

    Hi there thank-you for taking the time to read this! I have a 300mA Rcd in a grain shed on a farm now every time I try reset it won’t stay on there are 3 phases that go into the main switch And it isolates all 3 bar the neutral so when wen everything is turned off mcb rcbo in the board it...
  8. cliffed

    Main earth bonding protective conductors

    EICR recently done, Swa sub mains armouring used for cpc & MEBPC. Installed 40 years ago, water/gas/structural bonding required, these are @ 10mm Tncs earthing system @ origin which is remote from buildings 120mm tails. The sub mains vary in sizes from 25mm to 50mm….what’s your thinking on...
  9. K

    Main electrical supply cable asbestos or other outer insulation?

    Hi, Can anyone tell me what material the main supply cable is wrapped with (I believe this cable is owned by the DNO). My concern is whether it is Asbestos? The below photo of the cable taken just below my cut out shows the unpainted section facing the wall to be very fibrous. Also, another...
  10. T

    SWA Sub Main advice/comments

    Hi all, looking for a bit of advice and confirmation on my proposed plans for a SWA sub main to a ISO metal storage container. I've calculated the max demand in the ISO will be about 20A (300w of led lighting and 2 double sockets for chargers etc) It will be fed from a 3ph DB in another...
  11. A

    Just removing the sheath on a ring main cable in a 3 terminal junction box.

    Over the years as a DIY-er I've used the old brown 30A circular junction boxes to add spurs to ring mains. I like them as they are strong, secure and visible. I've ALWAYS followed the rules on domestic electricity . Until earlier this year I've been able to check with a cousin who's a...
  12. F

    Main incoming rcd tripping on any circuit

    My main incoming rcd is tripping out as soon as any load on any circuit. Have pulled each circuit out of the board live and neutral in turn but failed to isolate it to any specific circuit, is this likely to be the rcd at fault?
  13. Designmen90

    Connecting ground to neutral in main panel

    Hello everyone ? It's totally confusing for me. It is my understanding that the neutral and the ground busbars should be connected at the main distribution board (schematic attached), but not at the auxiliary or sub panel. But why? I know that if I connect them in sub panel the current from...
  14. L

    Review my Plan for Sub-panels off of Sq. D Homeline Main Panel

    Was wondering if the gurus can critique and/or provide recommendations on my plan to install two sub-panels in a (50'x100') 5,000 sq ft steel building that I plan to use as a hobby woodworking and welding shop. I plan to install two sub-panels using two feeder circuits originating from the...
  15. R

    i installed Android LCD in my car dashboard. And 2 small LCD connected

    THIS IS FOR ELECTRICAL NEWS ONLY - Only companies that wish to get news out to our members can post in here. If you're a general member looking for electrical advice then please click the main HOME button in the main menu and find a suitable forum category for your question.
  16. V

    Next door neighbour mains spurred, pre-meter off my main fuse!

    Semi-detached next door house mains supplied from my property pre-meter off main fuse. I cannot get a smart meter as main fuse cannot be pulled by non DNO electrician. This arrangement has been confirmed as not a revenue dodge (ie running feed to garden shed, extension etc). We confirmed the...
  17. B

    Main fuse blows before MCB.

    I wonder if anyone can suggest a scenario that could have made this happen. I did a full rewire on a two bed purpose-built flat a few weeks ago. TNCS, cut-out in cupboard at the stair-well, I ran the tails to a switched fuse inside the flat and on from there to the consumer unit. All tested...
  18. Z

    Sub main in a domestic property

    Hello all. I have visited a domestic property with two consumer units, one downstairs and then a separate one for upstairs. The upstairs is fed by a 16mm twin and earth and the downstairs is fed by 25mm tails. The cu downstairs is a duel RCD. The question I want to ask is, since the cable...
  19. F

    Where is reg for singular main switch

    Hope some more knowledgeable member can educate me as to where in the BS7671 regs demands that every installation has a singular "Main Switch" if suppling 2 CUs on the same domestic meter board. (Does the internal Main Switch in each CU meet reg 537.1.3? TIA
  20. E

    Oven tripped main RCD

    My friend was cooking dinner with something in and it tripped the electric off at the RCD. Put the RCD back on and finished cooking what they were cooking. The next day they put the oven back on and now there's no heat. Any ideas?

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