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  1. B

    A newbie basic (and probably stupid) question!

    Hi. I'm completely new to solar but am getting a system for my house with solar panels, an inverter and battery and, of course, will still have a mains supply from the grid. I aim to provide my electricity needs as much as possible from the solar and from the battery (charged from the solar or...
  2. K

    Question about Zs and PSCC needs some clarification thanks

    Hi everyone Recently I have come across an advert of someone selling Afdds C type and the person mentioned the need to sell because Zs was too high so he was considering changing the circuit breaker back to B type as it allows enough Zs to meet the regulations. As Afdds is also combination of...
  3. P

    Old school type (horizontal) QOT2020 breaker question

    What's the standard rule on the older horizontal or "side-by-side" QOT tandem breakers about which switch controls which circuit, since one of the hot wires is stacked or hidden behind the other? Thanks!
  4. M

    WECA HW Question Help

    What is the total current draw on a 120v system with recessed fluorescent luminaires rated 768W/806VA? I got the question wrong with an answer of 6.4 (768/120=6.4). The right answer was 6.7 - assuming 806/120?) Amps = watts divided by volts. What am I missing? Thanks! This is a self paced course...
  5. P

    Air compressor wiring question

    Greetings! I'm currently in a jiffy, and taking all precautions and safety to account, I want to properly screw all pertaining wires to their corresponding areas, As illustrated in the images, the compressor wires are 5, 2 black, 2 blue, and 1 green, my problem is that I don't know which goes...
  6. R

    Light socket question

    I was switching out a bulb in my basement overhead light socket and noticed the hot terminal looks a little deformed.. Its an old light fixture but is this some sort of problem?
  7. A

    Code Question - Grounding MC Cable and Metal Junction Boxes - Garage Addition

    Hey, question for the group on grounding when using MC cable and metal boxes.... Situation: Enclosed a carport and turned it into a garage. I'm branching off of an existing bedroom outlet circuit to add 1 outlet and 7 LED light fixtures in the garage area (1 exterior, 6 interior LED puck...
    • Aaron-DIY
    • Thread
    • addition boxes cable code garage ground grounding junction mc cable metal question screwfix
    • Replies: 1
    • Forum: UK Electrical Forum
  8. Peter55

    Earthing question - three phase into main building, then single phase to EV charger

    Hi there, new to the forum and in final stages of completing C&G level 3; need to complete design project to complete. Am struggling to get my head around how to draw up correct circuit diagram showing EF Loop path for EV charger where initial supply is described as 'three phase TNCS' feeding to...
  9. J

    UK smart light switch wiring question

    I purchased a no neutral smart switch to replace my current light switch, but I’m not sure if I’m able to wire it up safely... The existing switch has 3 wires: L1, COM and Earth. The new switch only seems to have 2 wire slots: L and L1. (photos attached) Am I able to safely wire up the new...
  10. R

    Loop testing question

    Hi All Whilst carrying out some testing today I had the following messages on my Kewtech KT64DL. L - N >20ohms - this was on the ring on only one socket, all others tested fine. Could this be a faulty socket? n-pe hiv - this was on the upstairs lighting circuit. Was testing in the loft where I...
  11. F

    89 mobile home breaker and wire gauge question

    Ok so live in 89 mobile home ugh I really need lots of work but I'm on disability and I cannot afford electrician but I've been working with all kinds of cables wires and electrical probably unsafe as a kid but lol anyway there are way too many plugs on one circuit not what I'm here about tho it...
  12. H

    9DIY spa panel connection question

    I’m running a feeder from main panel into spa panel that I’ll mount on exterior wall of house , will run through basement ceiling. Im thinking to run Romex/NB wire from main panel until spa panel but when I exit from basement it will be too low to mount the spa panel and I will need to add small...
  13. harvirsingh

    question 6 in current design

    calculate the desgin current of the radial circuit suppling the air compressor ( circuit BR4) i need help with this ASAP please
  14. A

    Question about a coaxial cable electromagnetic field / possible interference with monitor / PC

    First I will pose the question so you don't need to read the rest if you don't want to: What if any are the possibilities that a pretty long RG6 coaxial cable (cable TV - about 11 meters inside apartment ) would interfere in any way with a PC + 144Hz monitor that is in very close proximity(1.5-2...
    • alindefaugh
    • Thread
    • cable coaxial electromagnetic electromagnetic field field interference monitor possible question
    • Replies: 11
    • Forum: DIY Electrical Advice
  15. M

    Sub panel question from a DIYer

    New/old house. There's some indication that the electrician was drunk, or the owner just had his/her own way of doing things and knew the inspector. Every time we try to turn off a circuit, my hub goes through every breaker in the main box. None turn off that circuit. Next stop, the sub- panel...
  16. T

    MV Electrical Stress

    I'm trying to find a simple way to answer some stress related questions in regards to MV termination to apprentices not engineers...this is what I came up with so I don't lose anyone going down a rabbit hole of terminology. "Electrical stress is when voltage is trying seek a path to ground...
  17. OnlQQker

    A Calibrated Question (Multi Meters)

    I have a Kewtech KT63 which I picked up a couple of years ago for testing stuff in the shed. It has just run out of calibration and I'm not sure whether to contact Kewtech and ask them who to calibrate it or what? I know on Ebay people are calibrating but you have to package it up and send it...
  18. R

    L & T Energy meter question

    Hello everyone I am programming L&T make WL4000 energy meter. When I change the CT Primary to 400 the LED K is on meaning the meter reads in kWh. When I change the CT primary setting to 630 the LED changes to M meaning the meter reads in MWh. CT sec in both cases is 5. How can we set the meter...
  19. L

    Trimble modelling question

    Hello, I have a question regarding modelling on Trimble. If we have an MCCB that has LSI protection but has a separate earth fault relay can this be modelled on Trimble as an LSIG MCCB? Thanks
  20. L

    Basic noob question about outlet wiring

    I tested a non working outlet with receptacle tester and it said open neutral. Turns out that the neutral wire was loose. BUT, in order to shut off the power I had to turn off 2 circuits. Inside the box was only 2 wires, black and white. So the open neutral is fixed but how many other problems...

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