understanding

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  1. Dan

    Understanding TrueNAS JBOD Servers: A Comprehensive Guide

    Understanding TrueNAS JBOD Servers: A Comprehensive Guide In the world of data storage, businesses and tech enthusiasts often face the challenge of managing large volumes of data efficiently. As the demand for scalable and flexible storage solutions continues to grow, systems like TrueNAS and...
  2. L

    Understanding NVQ obtained, would it cover both Domestic Electrician and Electrical Engineering

    Hi. Ive been training to be an electrician as a career change for the past 2 years obtaining my 2365 Lvl 2&3. Ive recently been verbally offered a role as an Electrical Service Engineer and the company understand my current knowledge, experience etc. They have offered to train me up, put me...
    • lew_mcc
    • Thread
    • cover domestic domestic electrician electrical electrician engineering help nvq understanding
    • Replies: 4
    • Forum: Domestic Electrician Forum
  3. D

    Help understanding little solar production

    Hi all In need of some advice to help understand little generation on PV system. The set up is: 5kw hybrid inverter 10kw batttery storage 2 x strings of 6 x JA solar 420w panels (2.52kw per string) Tigo optimisers for each panel I was producing 2.3kw around 9am (south facing) and this...
  4. P

    Hi, here to improve my own understanding

    Hi. I've not long moved into a new home and having one or two gremlins and having some work done by an electrician.... so although I'm a home owner and not an electrician, the questions I might ask are to improve my own understanding of what he's doing and also to ask advice where he might be a...
  5. B

    Plugs and Fuses - Help understanding symbols (PC/Monitor)

    I have a question which is confusing me and I cannot find a definitive answer and I hope someone can help. So I have a PC and Monitor and I have misplaced the IEC cables in a house move.(Somewhere in a box labelled cables hopefully) My question is I have found this spare on one a box. (see pics)...
  6. A

    I've burned two SONOFF already and I need help understanding why

    Hi everyone, after temporary removing a Sonoff that I've installed years ago to do some painting, I'm unable to get everything back to work. I've already burned two of them during my tries and I need help understanding why. On the wall I have two switches, one turns on the patio light, the...
  7. HappyHippyDad

    Understanding wiring for wet underfloor heating?

    I have not had to do the wiring for a wet underfloor heating system before. I think I started a thread fairly recently and had some very good replies which has helped me understand heating systems in greater detail. However, I have a more specific question to this particular manifold wiring...
  8. HappyHippyDad

    Understanding wiring for wet underfloor heating systems.

    Up until now I have steered clear of heating systems. I now have quite a bit of work with a builder and will be expected to deal with the electrical aspects of any heating systems installed. In a few months I will be doing the electrical work for a 2 zone underfloor heating system from a...
  9. Audronius

    New property - looking for help understanding the heating system

    Hello! I've just moved in to a new property with "all electric" heating system and trying to figure it out. The agency/landlord are of no help so trying here. Previously only lived in properties with the usual gas combi boilers so a bit lost. It's a one bedroom flat with two of us living here...
  10. Lucien Nunes

    Neutral - earth continuity understanding or misunderstanding?

    Over the last few days, I have stumbled across a number of threads that seem to point to a prevalent misunderstanding. Either that, or I have been misunderstanding the intention of the posters. I'm not linking any threads here as I don't want to call anyone out for this specifically. In each...
  11. HappyHippyDad

    Understanding 3 phase volt drop.......

    I am trying to understand 3 phase volt drop. I understand single phase VD. Lets say we have a 70 meter run of 35mm, 5 core cable from the supply to the 3 phase consumer unit. From the 3 phase consumer unit we have 1 x 16A triple pole MCB (so that's 16A per phase). which has a run of 12metres...
  12. 1

    Help Understanding EICR

    I would greatly appreciate if someone could help me understand the following outcomes on an EICR. I am being advised it needs a total rewire but I am a layman. The wiring is approx 30. Years old. 4 circuits, 2 x lights, one mains (incl kitchen), one for living room. We will be renovating the...
  13. Practicalman

    understanding amperage draw with voltage conversion

    if a 420 watt 12 vdc led light draws roughly 35 amps, what would the draw be on a generator putting out 120vac with a 120vac to12vdc converter
  14. B

    Positive earth understanding

    This is really embarassing i cant get my head round Positive earth So have a classic with spotlights that are relay switched at the the loom i have -12 volts so would it be as simple as grounding the other wire after it passes through the bulb So is it -12volts like a negative potential of 12...
  15. Pegasus

    Understanding terminology, schemes, cert, notifiable?

    I haven't fully understood yet the process of certification, notifiable works, LABC, schemes, and how they all tie up together. Where can I read more about such terminologies, or what do they mean, do you need to be registered on a scheme to operate or even write out an EICR? If you don't want...
  16. OnlQQker

    Just When I Thought I Was Understanding Electrics To A Small Degree...

    I go and watch something like this...
  17. A

    Help with understanding the wiring

    Hi, Need some help understanding the wiring of the bathroom lights at my place (in Singapore). I had a look at the wires near where the light bulbs are and couldn't make sense of the pairs of what I assume to be neutral (black) and ground (green/yellow): The left side I assume is coming from...
  18. C

    Help understanding AC motor diagram please

    hi can I anyone help me understand wiring one of these l, also what capacitor needed. I want to use with a speed controller. To be used on DIY reeling machine Any other tips thanks in advance.
  19. HappyHippyDad

    Understanding EV testers?

    I need to buy an EV tester in order to carry out all the required tests. I'm just a little unsure about one or 2 things... 1. Is an EV tester the same as an EV test adaptor? These terms seem to be used interchangeably. 2. Does the EV tester actually do the tests or do you plug them into your...
  20. A

    Understanding Fire Alarm

    Hi I’m after some advice please I understanding a fire alarm system. I get how the conventional and addressable are wired. By my question is about when an alarm goes off. So... In healthy state I assume there is a 24v or 12v running through the circuit? But when alarm goes off does all power...
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