understanding

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  1. 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...
    • baza
    • Thread
    • borrowed help please neutral please understanding
    • Replies: 34
    • Forum: UK Electrical Forum
  2. 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...
    • tennis ball
    • Thread
    • part part p requirements understanding
    • Replies: 2
    • Forum: UK Electrical Forum
  3. 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...
    • Guest111
    • Thread
    • regs regulations understanding wiring
    • Replies: 25
    • Forum: UK Electrical Forum
  4. 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...
  5. 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?
  6. 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?
    • JS_Electric
    • Thread
    • didn't electrical electrical work induction motor understanding
    • Replies: 5
    • Forum: UK Electrical Forum
  7. 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...
  8. 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...
  9. 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,
    • Inteificio
    • Thread
    • aus current max understanding
    • Replies: 5
    • Forum: Australia
  10. 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...
    • Shock Doctor
    • Thread
    • aus results test understanding
    • Replies: 9
    • Forum: Australia
  11. A

    Help understanding heating systems

    Hi all, Not long took the plunge and set up as self employed after spending 9 years in the trade. The problem I have is I have never had to deal with heating systems. It is something I want to get my head round because at the moment if I get called out to a heating fault I would be a bit...
    • ASHCOLE
    • Thread
    • boiler controls heating systems through understanding
    • Replies: 7
    • Forum: Central Heating Systems
  12. C

    understanding the importance of zs

    hi guys just something that's been bugging me, as i understand it a MCB trips on overload (to much current) and a RCD trips on a imbalance of amps through live / neutral , its important to have a low resistance fault path for the protection devices to operate promptly but wouldn't a mcb trip...
  13. R

    Understanding a contactor for lights run by a photocell.

    L and N feed to contactor? Then feed from live to photocell. switchwire back to top of contactor. Then on the bottom have the feed out to the lights??? idiots guide would be appreciated as i have never wired a contactor before. The guy said in spec he wants a seprate circuit for control and...
    • Robo
    • Thread
    • aus contactor lighting lights photocell understanding
    • Replies: 4
    • Forum: Australia
  14. Katash

    Help understanding my qualification

    Hello, I completed my NVQ 3 Electrical Installation course in 1999/2000 - I received my certificates and immediately changed career .... Few years later I was employed as a factory electrician for 3 years and after that I worked another 3 years in my current job as a multi-skilled engineer...
  15. M

    Understanding shading

    I'm trying to work out how many panels I can get on my south facing roof but I'm a little confused with regards to shading. It looks like the only shading I will get will be from a neighbours roof but only during the depths of winter. Does anyone know how to calculate potential yield of the...
  16. S

    Help needed to understanding testing equipment regulations

    Dear fellow electricians, I am new to the electrical trade and even after several courses am having a very difficult time in understanding what I am allowed/required to buy and what I am not in regards to testing equipment. I am told that to test circuits I need to comply with GS38 although...
  17. J

    understanding tables in OSG and 17th regs book???

    hello just taken my Am2 exams last week and past everything apart from the 30 question online exam. I have booked myself in for a resit of the questions for next friday. questions like... 50mm by 50mm metal trunking fixed horizontally over 20m, how many fixings would it need? that...
  18. C

    Understanding electricians

    Hi there, I have to confess I'm not an electrician... Nor do I know anything about it. But that's why I'm here. I'm doing a bit of research into tradespeople, and wondered if any of you wouldn't mind giving me your two-pennies worth on a few things? Just wondering how you find your work? If...
  19. R

    Understanding installation voltages, particularly Vne

    Believe that I am (mostly) up to speed with electricity as applied to appliances (n.b. just realised as I wrote this, that is where the word appliances comes from, never occurred to me before!), so I am now trying to understand installation voltages. My aim is to learn/train eventually to become...
    • ringer
    • Thread
    • aus installation understanding voltages volts
    • Replies: 8
    • Forum: Australia
  20. F

    hey all,anybody know best book for understanding formulas

    struggling with getting my head round formulas,anybody know any books which are good or any tips...cheers
    • franky
    • Thread
    • book calculations electrical knowledge understanding welcome
    • Replies: 9
    • Forum: The Welcome Forum

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