need help

  1. W

    I need help with figuring out an equation

    Hello, I’m in dire need of help. here is the question A kitchen Ring final circuit is wired in 2.5/1.5mm T&E and protected by a 32A type B circuit breaker. 70m of cable has been used. Q1. What is the expected r1, r2, rn value ? So far I’ve used the equation R=Mohms/m X Length =1,365.7...
  2. Nafislord

    Need help setting up a wifi light switch in UK

    Hi everyone, I want to install a wifi switch in my room but the problem is I am not very informed in electrical wiring subject so would appreciate it if someone could give me some insight regarding this. Light Switch Cables Image The in the inside it says TOP 7704 There is nothing saying which...
    • Nafislord
    • Thread
    • cable cables colour electrical wiring light light switch need help setting switch wifi wifi switch
    • Replies: 3
    • Forum: Lighting Forum
  3. R

    Need help from an auto electrician

    Hi guys, I am currently in the Philippines and with all the Islands locked down it is very difficult to get a good vehicle electrician. I have a 2009 Nissan Navara D40 and my issue is the headlights dipped beam doesnt work. I haven't owned the truck that long so I dont know the history. Ok, so...
  4. M

    need help removing wattage limiter on the fan

    Hello All, Working on fixing the issue with the flashing light on the fan, but having trouble understanding how to connect wires after removing the wattage limiter. I can see that grey should be connected to grey, but not sure how to connect all the other wires after I remove the wattage...
  5. D

    I need help with how inductance works in a single phase transformer

    I currently have this, Primary inductance on an AC transformer will determine the magnetizing current on the unit. Usually inductance is relatively high so the magnetizing current can be as equally low. This inductance can be seen as part of the magnetizing current; however, it will not be seen...
  6. C

    Wiring Off-road lights, need help on the wire sizes needed, going a little crazy here

    So im not terrible as electricasl but also not the greatest. I know how to wire up relays and fuses and all that stuff but the wiring sizes for these lights has me in a pickle. The Vehicle is a 1989 Jeep Grand Wagoneer and ive already upgraded its 78A alternator to 150A, with 100A at idle so...
  7. P

    Need help asap!!! Potential danger and idk

    Okay today my renter said she trying to unplug something from this outlet and somehow pulled the faceplate off. So I go up to investigate and this is what I find (attached pictures). Any suggestions? I'm confused how this outlet could have arched to anything. Also it looks as though it had...
  8. C

    Need Help Learning to Compute Adiabatic Method

    How would I go about calculating it for any given circuit? Lets say I had a 60 amp feeder, 13.30mm2 phase and 5.261mm2 earth. How long could I run the circuit before the 90*C insulation on the earth wire overheats for a fault? At what point would I need to up size my earth wire?
  9. J

    Need help which contractor to go with

    So on a house rewire I have finally got back the three quotes and they are all pretty much in the same ballpark but there are some differences which may be significant or not. The main differences were. Quote1 - Fit 10 way Crabtree Unit, schneider sockets, 4 Aico smoke alarms, - will not fit...
  10. A

    Need help identifying safe AC adaptor

    Hi all, I'm trying to establish whether I can safely use an AC adaptor on a different device. Basically I have a UK plug on one adapter and I want to use that to power another device for which I only have an EU plug. I have attached pictures of the two adaptors below. Can anyone tell me if I...
  11. M

    Need help replacing fuse

    Hello my fuse has blown and iv looked at the fuse box but iv never seen a fuse like this would anyone know if i can buy replacements and fit them myself.
  12. S

    Need help connecting a 3way please.

    The first pic is my current set up, i want to use this new switch. Can I do it? which wires need to go where? thank you for your help.
  13. 0

    Need Help With Subpanel Wiring

    Hello, I’m a DIYer installing a subpanel on the far side of my house for a pool pump and light. The subpanel will have a 15-amp 240V breaker for the pump and a 15-amp 115V breaker for the light. The line from the main to the subpanel will be run in the attic and the total distance is...
  14. P

    Need help on spacing supports for metal trunking please

    Evening people, my first time posting here. :D Apologies if it isn't in the right category. I am currently writing up my portfolio/NVQ for my apprenticeship and I am looking at table D4 in the OSG. Trying to find 100mm x 100mm metal trunking on column one but they are listed as cross sectional...
  15. C

    Need help with new light switch

    Ok. I removed a dimmer to put a regular switch in. Installing a new ceiling fan and light. They have the power from box going to light, then switch, then to an outlet below the switch. The switch never controlled the outlet, just light. So can I just use a 4way to keep the flow going to the...
  16. T

    Nodular network of heating sensors/transponders?

    Theoretically, is it possible to utilise/connect to the sensor in a heater, even if the heater is not connected to a power source? Presumably, the sensor has some of antenna which would enable it to sense temperature outside of the circuitry. If so, is it possible to network these sensors with...
  17. T

    Need help matching power supply to LED project.

    Hello, I am an artist in Portland Oregon and I need to power an array of 3 watt cob leds (9-12vdc 260-280ma) https://www.ebay.com/itm/311651957952 They need to be strung in strands of 8 (12 total strands) 96 total leds. I would like to run them a little underpowered to reduce the heat and...
    • tedoro
    • Thread
    • led need help power power supply project supply supply to
    • Replies: 1
    • Forum: Lighting Forum
  18. M

    UK (IMAGES) Connect 20amp Isolator Switch (For Split AirCon) – Need Help.

    Images Now Included. Hi there, a new DIY member here based in Hong Kong, where getting reliable electricians can sometimes be a challenge! I've been finishing off a rennovation project and one of the last jobs is to attach a 20amp isolator switch for an indoor split AC unit (Panasonic). The...
  19. I

    Need help with power outlet wiring

    Hey there i hope someone can give me hand here So i have a light on/off switch which i want to change into a power outlet switch, the thing is i'm a bit confused with the wiring. The Light switch has - 2x red wires, 1x green wire, 1x white wire, can i even change it into a power outlet...
  20. U

    UK Need help with cable size and breaker size

    I’m still an apprentice electrician so the whole thing around diversity is still a bit confusing to me A family member has moved into a new flat. The existing cooker circuit is 6mm on a 32A MCB. She has bought a cooker which pulls 9.6Kw. I know you do 9600/230 = 41.7 This is telling me that...
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