screwfix

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  1. O

    Getting strange reading when I test a recepticle

    I have moved back to my house i was born in some 60+ years ago. Most of the original house's electrical receptacles are 2 prong with the center screw that holds the cover plate on as ground. They all test, OK. My parents had an addition installed on the second floor sometime around the mid to...
  2. F

    An unusual 3 wire cable voltage

    A 3 wire cable. Black, red, and white only. No ground. What does it mean when, black to white 0v, black to red 120v, red to white 120v? Thanks, Flatwall.
  3. Z

    What in the world is going on here...

    Was called to a complete previously scheduled work. Prior to arrival was called to say she was having electrical problems. This client has a large 40 year old home, with an 150a pushmatic main panel. No work has been done on the home recently. This is what I witnessed: Some circuits worked...
  4. M

    Which color leg (black or red) should be switched for a 240V rangetop?

    I have a 240V range top that needs a wall switch added (for preventing an elderly person from using it when unattended). The existing feed is one black, one red, one bare ground. Which color leg should I break with a switch? Thanks
  5. B

    Can I get help with the question

    Hey so I need help understanding this question and understanding it in the NEC.The service to a multistory building is 277/480-volt, 3-phase, 4-wire. There are 125 120-volt, duplex, general-purpose receptacles to be installed on each floor. A 3-phase, 480-volt primary, 120/208-volt secondary...
  6. 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...
  7. P

    Is 8awg ok to use for a branch circuit (30amp leg) ?

    I wanted to ask if 8awg (stranded) was safe to use for residential? I am wanting to run a branch circuit from my main panel to the garage (about 15ft away) into subpanel. Actually it's a 70amp Eaton 2circuit loadcenter. I dont have anymore room in my current Main panel so Ive read on here how...
  8. P

    (USA) 4/0 SER from Meter to Disconnect

    Just got here, and I'm not sure if this question will make sense to UK folks, or if there are any USA folks here at all. Anyway: due to supply issues, I can't find any 4/0 XHHN or THHN. I'm trying to connect my meter to a 200 amp disconnect. Can I use 4/0-4/0-4/0-2/0 alumin(i)um SER cable for...
  9. W

    GFCI in Closet keep tripping, found it was tied to overhead lighting circuit. Normal?

    Hello all! Newer house, original owner(Florida). no change to electrical system. Just found there was an outlet (GFCI) in the closet so I wanted to put a paper shredder in there but it didn't work because the GFCI was tripped. Would not reset so I changed it out, new GFCI will not set either. IN...
    • Wryfox
    • Thread
    • circuit found gfci lighting lighting circuit normal overhead screwfix tripping
    • Replies: 2
    • Forum: UK Electrical Forum
  10. U

    Bathroom vent/light wiring

    I am replacing a bathroom vent/light. The new vent box has the wiring on the opposite side of where I need it to be. Is there a safe way to add (splice) extra wire to the wiring coming from the vent. The existing supply cable will not reach the new wiring. If so what size and will a junction...
  11. daybyday2k

    EMT conduit fill cable versus conductor, and receptacle for 30AMP 240.

    Hello DIYer here, Seeking advice on running a 240V 30AMP circuit to an air compressor in the shop. Roughly about 25 foot run from panel to location of compressor. Have 8/3 cable with 3/4" emt for surface mount run. Can I place the sheathed 8/3 cable inside the EMT or do conductors need to be...
  12. B

    underfloor heating and tandem breakers

    Hi, this is a bit complicated. We installed two separate underfloor heating system in our downstairs area. One at 240V and according to the manufacturer at 11.9Amps. The other one also at 240V and 9.7Amps. Because of the lack of space in the 200Amp panel, we connected them to two separate...
  13. D

    Diy: trying to connect enphase combiner 3 box

    Getting 120 volts between line 1 and neutral and getting 120 volts between line 2 and neutral but getting 0 volts between line 1 and line 2. Need help in figuring out what is missing?
  14. TexasDave

    Exterior conduit in hot, high humidity/wet geographic locations

    I've lived and worked my entire life in SoCal. Recently we moved to Southern Texas where there is a lot of rain (from a SoCal perspective) and constant high humidity. For exterior building runs, I mostly see PVC instead of EMT. Is this just people being cheap? Or should EMT be avoided in...
  15. B

    How high must a electric service line be

    There is a 220 volt electric service line crossing my empty sloped lot going to a neighbor's house. Neither the power company nor my neighbor have a written type of easement across my yard for this line. Many years ago the power company just put it there because it was easy to do. It was 15...
  16. K

    difference between semi flush and flush service panels?

    I am upgrading an old 100A semi flush outdoor overhead panel to 200A solar ready, panel. Was looking at Square D SC2040M200PF, but this appears to be designed for bottom feed- with option for top feed. Does not appear ideal, and my installer says might be a real PITA. I am not seeing many...
  17. E

    wire two 30 amp inlets into same bypass panel?

    Can I wire two 30 amp inlets into the same bypass circuit panel? I want to have an inside and outside inlet.
  18. MeatWad35

    Career Aspirations or Maybe Confused

    Ever since I was little, I've wanted to be an electrician. Today, I want the same thing, but I've made some educational moves that might be counterproductive to the field. Let me explain: I am a US Navy Veteran. I was an aviation electronics technician. The thing is my stint lasted one year due...
  19. Shahriar

    Outside Wiring Voltage Tolerance

    Hi Friends, I bought a house and trying to add lamps to the outside. There are cables wires all around my stucco walls and the end of them just lie close to a plug. I was going to add a plug head and simply put them into the plug and also bought 8 6W lamps 110V that will be added. I was...
  20. T

    220 volts ran through one hot wire

    I recently tore down all the wiring in my grandfather’s garage he wired himself and i’m genuinely surprised it didn’t burn to the ground after 40+ years, but there’s some things I need some help with. He’s long gone so that’s that. First off, he only had 1 hot wire supplying 220v to his air...
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