combined

combined

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  1. T

    Is there any advantage to installing a ground rod instead of the combined earth to neutral in my CU

    Hello All I was pondering an idea recently regarding the ground connection to my property. At present it has a combined Neutral to earth at the point it enters the building from overhead cables and immediately prior to the meter the earth from the CU joins what looks like a Henley type block...
  2. mak

    Some MFTs have PSC/PFC test combined, I wonder why others have it as a separate test

    For example kt63 calculates pfc/psc with Zs but it has no option to go for an L-N test. The calculation is also the same V/Zs or V/Ze. The kt63 plus on the other hand has this option.
  3. T

    Unusual combined light switch/dimmer

    The house I've just moved into is fitted with the light switches shown in the pics. They are fitted to each bedroom and the landing. The landing light is also switched from a second standard switch on the landing as well as a standard switch in the hall. So essentially 3 way switching. I can't...
  4. U

    Combined Charging Source

    Is it possible to charge my battery bank from one combined source coming from solar panels (via Victron Smart Solar Charge Controller), Victron battery charger (via shore power when connected) and an alternator (via Victron Orion-TR Smart DC-DC)? All sources lead to one common busbar which then...
  5. J

    TNC-S Supply but combined again at DB?

    Took a look at a block of flats today that has a TNC-S supply. Each flat is fed by a 2-core mineral insulated cable. The earth and neutral are then combined again using a henley block prior to entering the consumer unit. Has anyone come across this before?
  6. P

    FuseBox AFDD Combined RCBO

    Just seen that FuseBox are offering AFDD Combined RCBO but cost on-line is £115+VAT so not exactly affordable yet! https://www.expertelectrical.co.uk/fusebox-afdd-combined-rcbo
  7. dokkan1080

    Off peak and peak consuker unots combined?

    Is a board layed out like this correct for an eco 7 off peak supply and a peak supply? Two isolators that feed seperate rcds. They have a shared neutral which is split at a Hanley block. The peak live, neutral and earth enter the cu via one gland, And off peak live and neutral enter via...
  8. N

    combined Fog and DRL got them fitted and fogs working but have a single wire to be connected

    Hi I’m upgrading the fog lamps on a 2013 Range Rover sport to combined FOG and DRL got the fogs working but have a single wire to be connected to an ignition live, where will the closest ignition live wire be
  9. R

    UK RCD/ combined afdd breakers

    Hi can someone tell me whether I need to record the trip times on x1 or x5 on this combined device,as I'm getting trip times of 44/45 ms x1 and sometimes a lot lower ie 29 ms.This device is the sole means of isolation. Cheers
  10. N

    Combined back box

    Anyone know of a 2gang and 2x1gang combined metal boxes ??
  11. Rockingit

    Recommendations for a combined MCCB/ELCB unit

    I'm on the lookout for an adjustable combined MCCB/ELCB 125A size unit to act as upstream protection for general distribution. Schneider do this one except it's on long lead time. I've had a look at Eaton / MG and a couple of others and can't seem to find much. I know I could split them into...
  12. OnlQQker

    TN-CS Combined With TT Question

    So I've just watched this and the chap explains all the different Earth arrangements used in the UK. He mentions about how in a TN-CS earth system if the neutral was broken just before it came into your house then this would be very dangerous. So I was just wondering if a TT system combined...
  13. J

    UK Sub Main Armouring Earthing Question Combined CPC and Main Bond

    Hi I have reviewed a few posts around this subject, but my question is not covered. I know that the Submain Earth has to be sized on the DNO incomer, not on the submain to the external building itself. My question is if I need two main bonds in the submain building, for example one for ground...
  14. P

    Can I just do 2391-51 periodic rather than the 2391-52 combined if I already have NVQ level 3

    Hi lads I've been qualified for over 2 years now. I'm wanting to get my testing qualification. At college we did the 2394 initial verification at that time. I remember been told that after we pass our am2 we could do the periodic inspection 2395 which would then give a complete testing qual...
  15. B

    TNS and TT combined

    Hi all, came to a job the other day, was TNS earthing system also with a rod (TT) has anyone seen this before, test readings Ze and Zs all within TNS limits, maybe the TT was just a back up? If you lose your neutral you’ve lost your earth TNS so can’t really see why there was a rod. If anyone...
  16. J

    Flashing LED Bulb in combined extractor unit

    Hello, I have recently had a Led downright/ extractor fan combination unit installed. After approx 10 mins the light begins to flash intermittently (as attached). The bulb installed is a 3 watt bulb. I swapped this out to a 4 watt bulb and the flashing increased. The electrician whom installed...
  17. C

    Electrician Jobs Changing from Related Meters to Combined

    I'm reaching out to try and figure out a best way forward to update the metering in my flat. From the looks of things, we've got two totally separate supply & metering systems - one with what I think is an old timer and that meter is on an economy 10 tariff for storage heaters (on the RHS) and...
  18. J

    Combined East and South facing panels impact using a bypass diode

    I am new to the forum so Hi to everyone out there! I am also a new DIY Solar PV user and I am looking for some technical advice on an unusual string configuration. So some prelude before the question: I have been looking at Solar on and off bust its always been too expensive and the FIT's keep...
  19. mydigitalhome

    Anyone used Solarus combined PV & Solar Thermal panel

    Hello, I dont work for Solarus and not trying to advertise them. Home - Solarus - https://solarus.com/ However I have a Client who spotted their website and I cant find many reviews about this tech. Does it work or is it a bad compromise what do you guys think? Do any of you have experience of...
  20. K

    2391 test & inspect combined course.

    Hello all, i am taking my 2391 combined test & inspect course in april. Would appreciate any revision material and mock tests if anyone has any? Thanks!

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