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  1. F

    How to install rigid conduit between two surface mounted panels?

    I need to re-route some circuits from one surface mount panel to another. There is a 4” gap between the two. I want to use 1” PVC or EMT. Because of the limited space, I am looking for suggestions for a legal, secure method.
  2. HappyHippyDad

    Difference between 1p+N and double pole RCD

    I need to replace a Hagar RCD (model number CN284U). This is a type AC RCD and I wish to replace it with a type A. The model number for the Type A equivalent is CNA584U. They are both 100mA, 100A, S type. The only difference being is that the Type A RCD is referred to as 1P + N rather than...
  3. N

    Spacing between LV and ELV?

    Planning on running some conduit for ELV while I get the chance during a renovation. I've seen a bunch of different figures for how much spacing you should keep the LV mains lines from the ELV (Ethernet, HDMI, etc.) to avoid any possibility of EMF interference, although it was mostly American...
  4. 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...
  5. A

    DC isolators required between inverter and array

    Hi, would anyone know if a single dc isolator (local to the inverter) is sufficient or would an additional dc isolator be required at the panels. The situation is an installation which has the dc cables from the panels routed through the property and clipped (8-10m run). All labels including...
  6. J

    Difference between FSU and 3 pin plug, both with 5 amp fuse for LED downlights?

    Is there an obvious reason why I can't just fit a plug onto my LED soffit downlights, fitted with a 5amp fuse and plug it into a socket rather than install a 5amp fsu? I'm fine with the plug being permanently plugged in as the socket gets no use anyhow. TIA
  7. S

    Compatibility between ceiling fan and speed controller

    I have a ceiling fan which currently has a remote control for fan speed and dimming the attached lights. We're currently doing some works in the room, and I have the opportunity to add switches by the door. As SWMBO has trouble reaching some of the standard/table lamps, I'll be adding switched...
  8. jasonvr

    Advice on conflict between generator interlock kit and subpanel requirements (Siemens Panel)

    I recently had my 50yr old 100A main panel replaced with a 200A Siemens panel (MC2040B1200EFC). It is the incarnation with the 200A main breaker at the bottom (earlier versions were center fed which would have alleviated my problem). At the same time I had the electrician add a 50A inlet for a...
    • jasonvr
    • Thread
    • advice between generator interlock kit panel requirements screwfix subpanel
    • Replies: 4
    • Forum: UK Electrical Forum
  9. G

    What is this small voltage between spa water and natural earth ground?

    I've noticed a strange voltage reading between the water in my spa and natural earth ground. The reading varies between .35VAC and .7VAC. My wife noticed a small shock from the water after inserting her finger in the spa while standing outside the spa. I tested the GFCI and it is working...
  10. D

    twin and earth between block wall and dot dab - cable channels needed?

    Hi all, Our sparky has carried out first fix, twin and earth cables clipped to the block walls of our extension routed to each back box. His leaving instruction was to dot n dab the plasterboard over the cables - but he has laid them without plastic or steel cable channels and in such a manner...
    • Deuce
    • Thread
    • and earth between block cable channels dab earth needed twin twin and earth wall
    • Replies: 18
    • Forum: UK Electrical Forum
  11. T

    Only getting 170volts between line and neutral on shower?

    So abit of a random one. But yesterday my Neighbor asked me if I'd be able to take a quick look at their shower as it had stopped working. I said I'd go round an take a look and see if it was something simple enough to fix and get it going again. Checked the usual things. The solenoid was fine...
  12. S

    SWA Cable for run between switched fuse isolator and consumer unit

    Hi all, I am looking to replace an existing CU (ground floor) and put it in a new position (first floor). The existing CU is on the inside of a wall to the meter cabinet (which is on the other - external - side of the wall). The existing cabling between these two devices is not SWA/armoured...
  13. I

    Distributing kitchen appliances between circuits

    We're renovating our kitchen, and I have parts of the wall open and can rewire circuits right now if needed. We currently have three 20A circuits serving the kitchen, as follows: *Circuit 1: fridge, microwave, toaster, outlets. *Circuit 2: disposal, beverage cooler (5 cu. ft. mini fridge)...
  14. HappyHippyDad

    What are the dangers of poor insulation resistance results between neutral and earth?

    What are the dangers of poor insulation resistance results (i.e <1Mohm) between neutral and earth? If all other tests are ok, what are the dangers of the above? My thoughts are it may indicate a breakdown of the insulation somewhere. However, what are the dangers of this breakdown between...
  15. T

    Where can I find a wiring diagram for 3 way switches to control multiple outlets between them.

    I am wiring 2 outlets in the ceiling to control 2 plug-in florescent shop lights in my garage. The 3 ways are at each side of the garage at the 2 entry doors. The way I have it wired right now, both lights come on at either switch but turn off if either is unplugged. I would like both outlets...
    • tantle1961
    • Thread
    • 3 way between control diagram multiple outlets switches where wiring wiring diagram
    • Replies: 4
    • Forum: UK Electrical Forum
  16. B

    Difference between Hager RCB's

    What is the difference between a Hager MT132 and MTN132 circuit breaker? (apart from the fact that one has an 'N' on it and the other doesn't). I need to fit (or get fitted if I can ever get a lecky) an MT132. Thanks Brian
  17. M

    Difference between ON and OFF intervention in the tsd of an ACB trip module

    Hi All, I'm trying to learn about discrimination and I came accross the LSIG characteristics of an Air Circuit Breaker. Howecerm there is something I really cannot understand about the Tsd. What's the difference between ON and OFF in the intervention? Thank you in advance
  18. UnderstandingElectrics

    TN-C-S supply, shocks from earthed sink, latest test from landlord 200Mohm resistance between E/N

    TN-C-S supply, shocks/tingles from earthed sink. Latest NICEIC test (2017) from landlord shows 200Mohm resistance between E and N As above, do I have a floating neutral, is this causing a leak from N, via bonding on sink to true earth (solid kitchen floor)?
  19. M

    Fused Spur 190v between Earth and Neutral ??

    Hiya Guys, I have a gas central heating boiler that is not switching on at all. It's connected to a clock timer and then to a fused spur. Boiler technician was out today to say the boiler is fine and I need an electrician, hence this post ! He said we have cross polarity on the fused spur. He...
  20. M

    Connection between copper and titanium

    Hello, I am currently investigating how to connect copper busbars or cables to a titatium busbar on a DC voltage system. What are the requirements/standards?
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