volts

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  1. Pete999

    Martindale voltage indicator and proving unit

    I have as the title suggests these items for sale, £70:00 for both PM me if interested
  2. C

    120volt plug from 240 volt wire

    i HAVE 240 volt wire feeding a submers water pump going down long hill.at bottom of hill is a junction box with 4 wire for pump on a dryer plug.rest of 4 wire feed plugs into it.for pump.i want to hook a 120 volt plug in at this point using the existing 240 volt 4 wire with 2 hots.can i do this...
    • cujiman
    • Thread
    • another based electrician not uk plug qualified volt volts wire
    • Replies: 8
    • Forum: UK Electrical Forum
  3. L

    Volt drop question

    Hi I've got a question regarding volt drop. When calculating volt drop to a 3 phase distribution board do I use 230v (11.5v) or 400v (20v) The board I'm attempting to put a cable to is 75 meters away. Design current 100A From TABLE 4D4A Cable selected = 25 mm² For 25 mm²: mV/A/m 1.75 for 230v...
  4. G

    using voltage drop too your advantage

    I have an install to complete where I have to take a 100amps per phase three phase supply over 330m too power a new installation. The power at source is obviously 415v (give or take) however the rating on the machine at the other end is 400v (build in Europe somewhere). I'm currently having a...
    • gavin.sibley
    • Thread
    • cable electricians vans phase power supply using van vehicle voltage voltage drop volts
    • Replies: 12
    • Forum: UK Electrical Forum
  5. I

    Disappearing voltage

    Can anyone help? A customer has a light fitting in a bedroom (5 bulbs) which is switched two ways with a dimmer switch by the door and a switch by the bed. He states that at some point he switched it on and nothing happened. He assures me they were working at some point before!!!!! He replaced...
    • iwire4
    • Thread
    • dimmer light switch switched voltage volts working
    • Replies: 25
    • Forum: UK Electrical Forum
  6. Dan Brown

    fuse connection unit and outdoor lighting low voltage

    Just wondered if it's a no no to run 2 low voltage lights from one FCU I have wired up sockets and lights to my decking outdoor accessories of course. From my sockets I have spured of to a RCD FCU from this I have my decking spotlights. So my question is can I run some LED strip lights to...
    • Dan Brown
    • Thread
    • connection fuse lighting low voltage outdoor outdoor lighting unit voltage volts
    • Replies: 7
    • Forum: UK Electrical Forum
  7. G

    two-pole voltage detector Guidance Note GS38

    All, I have my niceic inspection coming up soon and am a little confused about the requirements for a 2 pole voltage detector. According guidance note 3, a multifunction tester, multi meter or a volt stick can't be used which is fine, but what I want to know is if a clamp meter capable of...
  8. 3

    earth voltage

    I am checking an install and noticed the voltage between line and earth is 190 volts. I checked incoming supply voltage with the main consumer unit isolated and am getting 220v l-n and l-e when I switch cu on voltage l-n is 220 volts l-e drops to 190 volts I have disconnected all circuits and...
    • 316
    • Thread
    • cooker earth incoming supply switch voltage volts
    • Replies: 4
    • Forum: UK Electrical Forum
  9. N

    Solar PV volt drop and cable sizing.

    Morning gents, just a quick one. I've posted this already on the Solar PV forum but thought I'd add it here too as VD and cable calcs are always a good topic of discussion. So I have a Solar PV system to install this weekend, its a 10KW single phase system on a farm. I'm going to be running a...
  10. D

    Voltage drop tables...

    Just a quick one folk. Do the voltage drop tables in the BGB apply for ELV systems? I'm converting my van to a camper so I'd adding 12v circuits for lighting, water pump etc. It's all going to be run in 3183Y flexible cable, can I use the VD values per mA/m in the regs, the same way as I...
  11. J

    Plastering over low voltage wiring

    Have just replaced my low voltage thermostat with NEST version. Have moved the new thermostat by extending wiring with connection box (wiring is low voltage). Is it safe to plaster directly over the connection box and wiring?? Cheers.
    • james.scott
    • Thread
    • connection low voltage thermostat voltage volts wiring
    • Replies: 1
    • Forum: DIY Electrical Advice
  12. G

    Earth fault loop impedance

    How does earth fault loop impedance and disconnect time requirements change for 3phase 3 wire 230 volt systems where the phase to earth voltage is 133 volts instead of 230 volts?
  13. S

    Voltage drop

    I have a question asking how to determine the volt drop on a cable whith an unspecified length... Any clues... Anybody? :-)
  14. P

    Voltage drop workout

    Hi guys. Those who don't know me I have recently started on my own. I am testing my understanding, re Volt drop. And trying to stick to one formula. But I'm getting mixed results. My example scenario would be to feed a CU in an outhouse / shed. The CU will feed sockets, lights and some form...
  15. Simon-0116

    neutral to earth high voltage

    Been to look at a faulty socket on a rcbo and wont hold in, tried to test trip times etc but reading voltage on earth. Supply is tt, 3ph and 1 ph to a domestic property. Shared earth rod. Cant turn house off as belongs to separate person. So tested voltage at 3 ph db, 230, 400 v etc but...
  16. Worcester

    Voltage Optimisation - The true value for homeowners ?

    Just got this in an email today, kind of sums it up really !
  17. HappyHippyDad

    What could cause my voltage to drop to 28V??

    Evening all.. I have just tested a cable that I had put in place myself for a smoke detector and I am only getting 28V L-N. I am getting 240V L-E. When I first put it in it tested 240V. Since then the builder has been in and put the ceiling up, I'm not saying this is the cause but this is the...
  18. J

    Strange Low Voltage Readings

    Hi guys I've been doing a partial rewire. And I have taken a feed from a light that is fed, to feed a switch in a new extension. I wired up the lights and switch in the new extension but the light would not turn on. I measured the voltage at the light that's not powering up L-N and I'm only...
    • Jamie181191
    • Thread
    • earth light low voltage readings strange tested voltage volts
    • Replies: 16
    • Forum: UK Electrical Forum
  19. S

    Crompton Voltmeter

    I have come across this recently on a site and was just wondering whether anybody knew if it was worth anything or not ?
  20. yellowvanman

    Voltage Monitoring

    Customer has been trying to use a dishwasher using Economy 7 at night, and its not working properly. Works fine during the day, Miele engineer says nothing wrong but the cause of the problem is a pressure switch that ends up with the dishwasher failing to heat the water. Water pressure has...

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