drops

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  1. Rockingit

    Neutrals at switch drops

    So a brief foray into domestic has me slightly bemused…. Neutrals at switches. Easy enough if you’re wiring loop at switch, but if you have good reason to loop at light then logically all you need do is drop 6243 as your switch cable, simples. Except…. What about on a 2way / int run where...
  2. Z

    AC / DC voltage drops across Diode

    I am unable to find voltage drop of normal silicon diode(0.7v) on Voltmeters during Proteus Simulation. Also we consider 0.7v drop of diode equivalent to DC Source of 0.7v but DC voltmeter is not showing any output and AC Voltmeter shows around 5 volts drop across diode instead of 0.7V.Kindly...
  3. Z

    Melted Double Adapter and Power Drops

    Hi, just found this forum! I'm in Australia Maybe people here can suggest what may be causing a power issue I have. Appreciate any suggestions, thanks. Problem: I've had an ongoing issue where power points in the house are losing power randomly for a moment and then coming back on. Its like...
    • Zapion
    • Thread
    • adapter ausie elec double drops loading melted power
    • Replies: 3
    • Forum: Australia
  4. Rockingit

    Voltage to boiler fan 'drops out under load'

    Just had a call from an M&E client of mine and good mate asking to pick my brains.... large 3ph biomass boiler with (I assume variable speed) 1ph fans internally. Says he's got 230v L-N/E on the connecting plug but when the fan gets connected there's nothing on the internal fan connections...
  5. G

    How to maintain 12volts even the source drops to 9volts

    Dear All, Need your expertise advice. Problem: I have fixed a new music player in car which needs 12volts but the existing or old music player runs in 9volts. When the car is running or ideal the voltage is comings as 12volts But Whenever the car engine is restarted, the voltage drops to 9volts...
  6. D

    need to solve voltage drop over long run

    Ok so at some point I'm going to need to run another leg, until then. I have a main panel, 230v 80ft run to a we'll & pump, then a 900 ft run up to water tank and a pressure pump with another panel. Then a 120v leg off that that I want to plug an RV to. All 10 gauge 30 amps. With such a long run...
  7. B

    Water on electronics, no breaker drops

    Hi everyone, I rented out an outdoor space for a party and they brought a DJ. Unfortunately there was a water pipe that burst and showered the entire party as well as the DJ stand (just my luck). The DJ is now telling me that all of his equipment is fried, laptops, TV, disk players...
  8. G

    Circuit Breaker drops before Fuse

    I have underfloor heating rated at 3kW. The circuit goes through a fused switch with a 13A fuse in it. That is supplied directly from the main fuse box with a B16 circuit breaker dedicated to that circuit alone. Every time we use the system, it warms up for a bit, then the circuit breaker goes...
  9. C

    3 core + earth for switch drops

    Evening all, With so many smart/connected home products on the market now, what are the great and the goods thoughts on dropping 3 core down to switches when using the 3 plate system for lights to provide a neutral at the switch? I know there is the loop at the switch method which I have used...
  10. NeilOrme

    Display drops out on SMA 3000TL-US, but inverter still outputs

    My newest inverter has a strange issue - the display quits but the inverter still works. I verified the voltage/amperage when display was out, and it's still working. This doesn't seem to affect production, but the intermittent lack of a display is of concern. Also, the "today's output" is...
  11. P

    Cables drops EICR coding

    Hi guys, Recently doing a EICR in a commercial high street store. In the store area were they a false celing, they is cable drops down the wall and behind shelving. You only see maybe 200mm of the cable as the shelving is high near the ceiling. the cables are twin and earth and FP200, not...
  12. M

    So this week Trunking

    So a couple of months ago we had this ................. To end up with this.................... The panel is not as nice as I would have liked. It is not to any British Standard and both the Earth and Neutral bars were solid pieces of copper, which our lads were going to drill and attach 4-6...
    • malcolmsanford
    • Thread
    • attach conduit drops going panel trunking
    • Replies: 6
    • Forum: UK Electrical Forum
  13. A

    Preferred cable type and installation method

    Just about to start the design on a refurbished school and looking for suggestions on cable type and installation method. I've always been a fan of trunking and conduit with eitherT&E or singles on commercial installs due to robustness and quality but understand the cost implications and have...
    • atm84
    • Thread
    • cable conduit drops installation method trunking type
    • Replies: 18
    • Forum: UK Electrical Forum
  14. rustynails

    no cpc customer wants metal fittings etc....

    This has been posted about a lot but I wanted to ask a really stupid question. I can only run 4mm single g/y to each metal fitting from the board which is dual rcd 30ma. I cannot touch the drops, stipulated by the landlord. Is it acceptable to issue a mwc for this, write a safety letter and...
  15. NDG Elecs

    1966 Lighting CCT's CPC's....switch drops ONLY have CPC's....

    Hi Folks, Went to replace a couple of light fittings today. No CPC on lighting circuit at all, except the supp bonded bathroom fitting. OK that makes sense to me, house was built mid-late 60's. Advised replacement of 3 class I fittings as a minimum. However, discovered a CPC at a light switch...
  16. B

    Halogen lamps in pendant drops - Compliance with BRAD L1B ?

    I saw GE Halogen lamps in use on a social housing block being refurbed - whilst they are still allowed to be sold, i don't think you can say it complies with Building Regulations as they are C rated and so hardly energy saving - 1200 lumen for 70 W is pretty poor.( <18 l/w energy efficient is...
  17. L

    Dado trunking feeds

    Hi chaps. What are the permitted zones for concealed wiring feeding Dado trunking? I am doing a small class room extension and the architect wants the pvc conduits that drop down from the suspended ceiling to feed the Dado concealed in the stud wall. Is this permitted? Cheers Lee
    • Lee85
    • Thread
    • cables conduit drops feeds trunking
    • Replies: 5
    • Forum: UK Electrical Forum
  18. S

    My Ongoing Domestic Questions...

    Me again ;) Ok, oval conduit... 13mm 16mm 20mm or 25mm? I'm going to get my hands on a wall chaser so depth shouldn't be a problem, so therefore I'm torn between 16mm and 20mm as I presume 25mm isn't really that necessary. I know some may say don't bother with capping but I want to use it as...
  19. 1Justin

    Cutting it fine on voltage drops. - Opinions?

    Hi. Cutting things fine here, so an opinion on voltage drops would be nice. Doing some work on customers shed supply which is a bit of a cludge right now. I am trying to re-use rather long, but existing (measured and verified R1+R2 and IR ) buried & concreted over 1.5MM SWA to a customers...
    • 1Justin
    • Thread
    • customer cutting drops electricians' talk lighting opinions voltage volts
    • Replies: 2
    • Forum: UK Electrical Forum
  20. H

    Steel trunking to Galv conduit drops

    Can you get any steel trunking with 20mm knockouts for Conduit drops? If not what's the best way to make the holes just a standard 20mm drill bit?
    • highspark
    • Thread
    • conduit drops electricians' talk steel steel trunking trunking
    • Replies: 23
    • Forum: UK Electrical Forum
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