understanding | Page 4

understanding

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  1. W

    Help with understanding Import /export on 2 phase supply.

    Newbie so forgive me if asking stupid questions. We have a 3 phase supply to the property and a 3 phase meter although only 2 phases are in use. I have just had 3KW pv system installed on roof and single phase inverter in the loft. The electrician said he would join the pv array to phase 1...
  2. HappyHippyDad

    Understanding solar panels for use on van.

    Evening all.. Apologies if this is a bit basic. This is the first post I have done on the solar forum as I just do domestic electrics, but i fancy putting a solar panel on the roof of my van so I can have 2 lights in the back (low powered - haven't really looked so dont know the wattage) and...
  3. M

    Understanding of Part P

    Hi guys, I've been 'umming and Arring' about joining a Part P 'Scheme' for a while....I currently do very little work that would involve me using it, But obviously it's a good advert as the public see it as some sort of safety net, instead of the rip-off I think it really is. All the jobs I get...
  4. Baker1988

    Help with understanding exporting TN-C-S/PME

    Hi every one i need a bit of help, tomorrow i am going to a job where the customer has just has a concrete garage built and would like a supply put into the garage, so what i thought was just to run a swa from a spare way in the db in the house to the garage and into a garage 4 way board and...
  5. P

    Underfloor heating in a conservatory

    Had my assessment today and when looking through some certificates got asked why I had done a EIC for a spur for underfloor heating off a ring main which was connected to the heating system when I could have just done a minor works, I said to him I thought underfloor heating was notifiable which...
  6. mechelec

    Electrical knowledge and understanding

    I have always enjoyed this forum but after I posed a question and an idea I found some were very quick to belittle and berate my thoughts, and yet when probed about their own understanding of the whys and wherefores on the subject were shown to be lacking pretty basic electrical understanding...
  7. C

    Understanding

    Just would like to understand the wiring of this if possible as looks different how we been shown at college as we only get to see the nice perfect way in our booths, the set up is hall landing 1 gang 2 way switch and if turn either on or off both will do same and like I said would like to...
  8. markc123

    Understanding Static Caravan's.

    Definitions: 1) Caravan - A trailer leisure accommodation vehicle, used for touring, designed to meet the requirements for the construction and use of road vehicles. This is caravan that is towed by your car, and seperates as a seperate unit once on pitch - Section 721 of the special locations...
  9. T

    Help understanding bs7671

    Hi I am currently training for my 17th edition but am having trouble understanding the layout of the 7671 can anyone give me some advice thanks
  10. B

    understanding 411.4.9

    I'm trying to understand the above reg. Page 102 OSG. Can someone please explain it to me. Do I use Ze or Zs ?
  11. B

    Help please with understanding a borrowed neutral

    Hello everyone Could someone explain why the following happens with a borrowed neutral? Did a cu change today and installed a dual rcd board, Previously the up and downstairs lights were on the same mcb. I was half expecting the rcd/s to trip when I separated them, which they did. I dont need...
  12. T

    Understanding Part P Requirements

    Hi, Can somebody help me with my understanding of part p requirements. Take tomorrows job. Like for like replacement of a shower. Haven't viewed it yet so no details except the cable is 6mm. I told them to get. 7.2KW shower to be on the safe side. My question is this: because it's a...
  13. G

    understanding the wiring regs

    Is it just me or has anyone else ever wondered how many people do not actually understand the actual legal standpoint regarding BS7671 aka the wiring regs? The number of people who ask " is such and such legal and if so under what reg" the regs are NOT a statutory instrument and therefore not...
  14. HappyHippyDad

    Understanding Volts and Amps!!

    I'd like to understand a bit more about what actually gives you an electric shock. I think the more you understand something the safer you will be. I have been taught that it is the current (amps) that gives you the shock, but this then confuses me with regard 12v equipment (lets say anything...
  15. R

    Understanding three phase.

    I've heard many a time on here that people don't understand three phase enough to work on it. Im just wondering what exactly people don't understand?
  16. J

    How Induction Motor Work?

    Hi everyone. I am a student of electrical engineering. I want to know the functioning of an induction motor. How it works and what are the advantages of it?
  17. M

    Help understanding inverters and which one is the right one for my roof?

    Hi, I've been getting various quotes for a solar PV system - my roof is not a big flat south facing job, it has a few different sections. To fit solar to my roof you can get perhaps 6 panels on the main roof section - pretty much facing south with no shading issues, and you could get maybe 4...
  18. F

    Basic Understanding of Electrics

    Hello, I would like to do a course that gives me a basic understanding of electricity and how it works. I don't want to become an electrician right now but would like any course I do to be useful in the future in case I decide that becoming a qualified electrician might be useful. Could anyone...
  19. I

    understanding max current draw

    OK embarrassingly simple question. One of the devices I have says the following: "max current 13(2)A" What does the 2 in bracket refer too? Thanks,
  20. S

    Understanding Test Results

    Hi, Ive just altered a lighting circuit in a large victorian house and would just like someone to help me get a better understanding of my test results (I dont want to just be logging metre readings). My R1+R2 results were 11.3, my ZE was 0.22 but my ZS was 1.56. So if Ze + (R1+R2) = Zs my...

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