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  1. M

    Tricky Starter Circuit Question - 2001 Toyota Celica...

    I have an interesting starter circuit issue on a 2001 Toyota Celica (that won't start). If I have the starter out and have the main positive wire connected, then, run a jumper wire to the solenoid directly, if the starter is grounded to the engine, vehicle fans come on etc. when I set the...
  2. mikeysmith

    Garage buildout Question

    Hey all, I bought a big garage that I’m going to subdivide and rent out. I am going to hire an electrician to do all work. This is not a DIY question. I just wanted to ask for advice here before hiring an electrician, so I know what I’m getting into. Thanks in advance. The space is 2500 sqft...
  3. GTR450

    Question about discharging nimh cells in parallel

    Hi, I have question about paralallel discharging NiMH modules. I have 40 modules and one modul consist of 6 x 1.2V cell = So nominal capacity is 7.2V. These modules are in car connected in series. But I replaced 15 bad cells and now I need balance them. In one thread I have got good advices but...
  4. A

    GFCI breaker question

    I have to replace the GFC I on the right w red button (keeps tripping) which is now discontinued by Eaton. I bought the one on the left used but tested good which is the same CH type as the other one but it’s a little longer but still fits in the box. Any issue using it? Both 120v 20a.
  5. N

    Wiring Question Chandelier

    I have a new 15 arm chandelier, each arm has 2 lights which use G9 LED bulbs (3W equivalent). Each arm also has four wires coming into the base of the chandelier. My question is what is the best way to wire/bundle all 60 wires so they hook up to the hot and neutral safely. There are 30 wires...
  6. S

    Question regarding installation of dimmer switch

    I successfully installed one new dimmer switch today, but ran into an issue with the second. There are two one-way switches: one switch operates the light of our ceiling fan and another switch operates the fan. I want to change out the light switch to install a dimmer on it. When I examined the...
  7. M

    Maximum permitted Zs question

    I am a lecturer teaching electrical installations and in reading through the on-site guide to prepare a lesson I have come across a section I have not seen before. On page 146 near the bottom, the OSG talks about applying an ambient temperature correction factor to the maximum Zs values given in...
  8. A

    Newbie question 240v

    I have a welder that takes 240v. I just wanted to know an appropriate wire size I should use and breaker size. I had been recommended 10-4gauge with a 30 amp breaker but am pretty sure that’s not enough power I’m using an Eastwood mp250i I know I’m not an a electrician
  9. A

    Apprentice Xmas lights question

    Good evening I’m still learning at college and curious as Xmas just approaching regarding Xmas led string lights and there power supply transformers. My questions is: For an example a set of lights we have says 4.5v dc/ 3.6va output. My question is what happens if: The voltage output on...
  10. Shaun H

    Came across this, classic example of question no fused neutral

  11. S

    Question re 3rd party certification

    An apprentice ran my cabling and fitted socket covers works signed off by a third party certification - any issues with this?
  12. C

    UK 50 Amp RCBO blue wire size question.

    I have a 50 Amp RCBO by "FuseBox" My device is part number RTO65030B https://lamplec.co.uk/ProductDetails/?code=RT065030B From a layman's point of view the blue neutral cable looks very feeble for a 50 Amp maximum load. Also there seem to be some RCBO's on sale with the bottom clamp terminal...
  13. events-guy2020

    Portable device safety test question

    I have built a portable lighting game, and need advice on what safety testing would be needed for it to be used legally by private clients. In effect it is an enclosure with 10 sockets (only 5 connected, to 5 separate bulbs, connected to a switch), and 20 tails (only 5 connected to power). The...
  14. LouiseSJPP

    Near off-grid system: question on grid input

    My little house in Spain sits in the forest and has a little wire from the electricity supplier, 20 amps max. It's a fragile link, caught up in trees which fall down regularly. I'm planning to renovate this house with lots of PV on the roof, and make it is independent as I can of the grid...
  15. K

    18th amd 2 question?

    Hi I am 18th edition qualified but can I issue a 18th AMD 2 certificate without taking another exam? Thanks 👍🏼
  16. HappyHippyDad

    A question for those who did the domestic installers course and are now registered with a scheme.

    I did a domestic installers course around 10 years ago (blimey time flies!). This is a level 2 qualification. I then registered with Stroma who fully accepted the course as being a sufficient qualification. All Stroma CPS members are now with Napit. I have had one assessment with Napit, they...
  17. B

    AC Adaptor amperage question

    This isn't really DIY as such, but I need advice regarding a replacement power adaptor for an electronic device. The device requires an adaptor rated 24V and 3.3A It has a bit of an unusual connector so it's not so easy to find but I have seen two possibilities on eBay. There's a quite...
  18. A

    Site Temps earthing question

    Hi Currently on a job at a hospital where we are installing temporary site supplies to canteen toilet block and office. The supply is Tncs from hospital but the hospital electrician and contractor doesn’t want us to install earth rods in case of services below ground and they’re not prepared to...
  19. R

    Simple Hobbyist question

    hobbyist question: If I'm running a pelton wheel generating x watts, is it enough power to pump out the same amount of water used to create current?
  20. W

    Junction Box Question

    Hi, Apologies for the basic (silly!) question, but using a maintenance free box (ashley j803) to extend a ring main circuit, in the configuration in the image attached with 4 cables (2 in, 2 out), would it not create issues having the separate 2 cables in and out, in contact with each other...

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