power

  1. A

    12v power supply for diesel heater

    Hi, I am in the process of setting up a diesel heater to warm our conservatory and need to provide 12v power to it. I have purchased a CCTV distribution box which essentially has a 30amp convertor wired to distribution board. My plan is to remove the distribution board and wire the power...
  2. tetoncraftworks

    running LED christmas lights with a power supply instead of batteries

    i have an old motorola ac power supply and i want to convert my battery powered led christmas lights to an outlet. The power supply says Input 120v Output 4.0 vdc 350mA Will this work? The batteries box uses three 1.5 double AA's. Thanks
  3. R

    laptop power supply cables - fuses and ratings

    Hi there. I have noticed that most laptop power supply cables have a 5A fuse in the plug, but a 2.5A rating on the clover leaf end of the cable. Is this safe? Surely there should be a 3A fuse in the plug at least, given the cable is rated for 2.5A. The whole industry seems to be happy to...
  4. P

    Homeowner - Power supply cable relocation

    Hello. Just a lowly homeowner here who is beginning to panic after a major house renovation regarding relocation of the main supply cable to the electrical box. Just to make a point straight off, no work to move the main supply cable has been made, but the electrical box has been taken off the...
  5. B

    help on cable calcs power

    not to sure on how to find the wats for the power cable calcs could anyone help me its for a ring with 3 Dubble sockets on DB05-3L2 cable size: 2.5mm temperature rating:90°c total demand 32a 29.125m Design current w/230 lb= 0.547A Ambient factors 1 cable Ca=0.91 Cg=1.0 It=design...
  6. C

    UK Limiting power from sockets

    Hi I have an Airbnb and some guests are charging their cars off of power sockets in my kitchen. So not only is this outwith my insurance coverage it is costing me a lot of money. Are there sockets which can either 1) limit current? Or 2) time out automatically after 30 minutes or so I can...
  7. L

    Why is there no power to my Dyno-Glo Garage Heater?

    Hi, I have a new Dyno-Glo Garage Heater that I connected to the breaker, and it won't turn on. Multimeter reads 120V going at each node in the heater. Breaker is a double-pole 30 Amp Stab-Lok, rated for 240V. I'm not sure how to troubleshoot further, and I'm hoping for some direction, please.
  8. D

    Power calculations help please?

    Hi All, First of all apologies for the potentially novice sounding question believe it or not I’ve been a qualified electrician for 10 years but I’ve always worked cards in so calculations have not been something I’ve ever considered I just install the sizes on the spec however I now have to...
  9. D

    Home power intermittently tripping

    Recently my RCCB keeps keeps tripping intermittently. It can happen between several hours to few days when a trip will occur. During the trips, no additional appliances were switched on or being used. There are times when it simply trips in middle of night when most appliances are not running...
  10. A

    power fed light switch Hager rcbo won’t trip

    Power fed light switch and all lights test great, as soon as we put the dimmer switches in the Hager rcbo won’t trip, any ideas please
  11. I

    Suggestions for outdoor power for 12V garden lights

    I currently have some 12v outdoor lights which have a plug with a built in transformer. I would like these to turn on and off without having to go outside so ideally would like to have them on a timer but not sure of the best way to incorporate this while keeping it looking presentable...
  12. R

    E bike Battery to power bank ?

    Anyone got any advice on how to convert a 37 v Li-Ion e bike battery into a 12 v power bank ? I will need off the shelf parts.
  13. M

    Socket suddenly stopped working.. no power??

    Hello gents, I am trying to fault find the issue behind an old kitchen socket which suddenly stopped working. I immediately assumed moisture could have been a factor so I bought a new face plate but once I opened it I discovered there is no power to the socket from the incoming cable. The...
  14. D

    Advice on using lighting circuit to power cctv (12v/3A)

    Hi All, so I have a outdoor cctv camera that you plug in - I'm thinking of attaching this to the soffit and going into the loft from there (very easy access). Can I just wire this into the lighting circuit, I've already done some work in the loft for various lights and an extractor fan so I...
    • danz1man
    • Thread
    • advice cctv circuit lighting lighting circuit power using
    • Replies: 4
    • Forum: Lighting Forum
  15. R

    Power Panel Changes Voltage with Branch Circuits

    I have a Single Phase Power box for a townhouse. When I read voltage across the Hot legs (A) and (B) to ground I get 123 volts with the main breaker turned off. With all the circuit breakers turned off and powering up the main breaker to the panel I still have 123 volts across both (A) and (B)...
  16. H

    Power Inverter Without a Transformer? Please Help

    Hi, I'm new here and looking at this True Sine Wave Power Inverter from AliExpress, but I have never seen any inverter without a transformer? How do they work without one, and how does this one's build look for a cheapish China one? (£125) As I'm not abele to spend much money as it's to power a...
  17. A

    Texecom 8 compact power supply on boat

    Hello, I am fitting a Telecom 8 Compact burglar alarm system to a boat. The boat has both nominal 12v DC supply (ie up to 14.2 v when engine running) and a regulated 12v DC supply for electronics. I dont want to power it with the inverter so 240v is not available. My original plan was to...
  18. M

    Door loss of power intermittent

    Hi everyone, Help please. Power to my passenger door keeps going off, no windows, lock doesn't work, wing mirror indicator stops work, then they will all work for 10 minutes then all goes off again for days on end 😩😩 anyone had a similar fault? Thanks
  19. olisones

    LED COB strip not lighting despite power

    Hi all. First post and wondering if someone can help. I have a single colour LED COB that I’m having issues with. The strip is to be controlled by a small Wi-Fi controller unit. Due to the positioning, I removed the connector and now have a positive and negotiable wire. These both show current...
  20. Londonguy

    C7 Figure of 8 UK power cable

    I have an electronic device (X Box One S) that came supplied with a 5AMP Fused figure of 8 power cable. I want to buy another cable, and my local store only stocks 3AMP fused cables of the same type. My question is, can I just buy the 3AMP fused cable, and replace the fuse with a 5AMP one, or...
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