circuit

  1. C

    Heavy duty DIY next door possible cause of oven tripping circuit?

    Hello, new here! Would greatly appreciate some input. I'll first say I intend to get an Indesit technician to take a proper look tomorrow, but I'm curious. A couple of hours ago I tried to switch the main oven on as usual - the oven is only 2-3 yrs old - and a spark came from behind the...
  2. P

    What purpose is a capacitor in a motor circuit?

    So basically, if I wanted to increase the voltage across say a motor winding I would need to add a capacitor in parallel?
  3. C

    Amendment 2 new circuit SPD?

    So I need to add a new circuit, I was going to do it to amendment 2.. Its a commercial property and will be adding a new circuit for a defibrillator cabinet and associated accessories (lights)... There is a decent enough 3 phase board in place, but there is no SPD.. Obviously if we add a new...
  4. B

    Trailer Charging Circuit - Relay

    Thanks for looking at my question I have a vehicle that I charge my trailer battery with. The charge circuit is 10 metres via an andeson plug rear of vehicle. The cable size is 25mm2 and I'm wanting to fit an ignition fired relay to the circuit. Trouble is the standard 80a relay is a spade...
  5. C

    MCCB used as a final circuit supply

    Currently pricing a 250a Power upgrade for a small warehouse, the new 6 way 250a MCCB panel will essentially be used to supply x2 fuseboards however i want to have the MCCB panel also supply the larger plant as i want the MCCB panel to take the heavy loads as the client said he will never be...
  6. P

    Fitting 16A hardwired oven to 32A cooker circuit

    Hi all, I'm new on here.... I have an existing 32A cooker circuit with a wall switch with 13A plug hole.The manufacturer says the new oven is hardwired and is 16A. Can I just replace the breaker in the consumer unit with a 16A one and use the existing wiring? Current breaker is a Proteus...
  7. M

    Am2s lighting circuit and data circuit

    Hi all, I need some advice for am2s retake I failed the lighting and data circuit and have no idea why! I wired the lighting with a neutral at each switch like the specification says, I am wondering if it was because I put the earths in connectors do these need to be connected into the back of...
  8. P

    Gfci breaker tripping

    Just installed a “used” Gfci circuit breaker on my panel. New CB’s not made for this older panel. Without a load wire even attached, CB will not hold and instantly trips when power is applied. Pig tail neutral attached to neutral bar. When I disconnect pigtail from neutral bus, CB will hold when...
  9. I

    GFCI issue that is not related to the circuit it's protecting.

    Having lost my father in law many years ago, an electrician and electrical engineer, I'm now at a loss for a sounding board for any issue that comes up that I get stumped with. I am hoping the fine folks here may be of some assistance. I am having a GFCI/ AFCI issue in my sub panel...
  10. B

    How to measure impedance/resistance of an AC circuit

    Hi, I’m fairly new to all things electrical but I’ve recently taken more of an interest after having a CU fitted to my shed. Is it possible to measure the impedance or resistance of an AC circuit with a basic multimeter? I tried to do this by connected each electrode over the positive and...
  11. C

    How to wire 300 blue LEDs?

    I would like to wire 300 blue LEDs to one power source in order to light up a tree. What is the best way to do this?
  12. W

    Fault on lighting circuit

    All CPCs on upstairs and downstairs lights were live due to the cpc of upstairs being disconnected from earth bar. I was getting 230v between cpc and neutral at the light, the 2 circuits are separate and the rcd never tripped, anyone had this before or know why this would happen
  13. J

    Bad practice FCU to lighting circuit

    What are your guys thoughts on this a 13amp FCU feeding of a ring feeding a light. I know usually people fuse at 3amp but if unlikely to cause overload does it actually have to be fused down?
  14. R

    85V on neutral after space heater on circuit...?

    I'm not at all a certified electrician, but I have a strong self taught background in electricity and electronics. We moved into a new home this year, and Austin got cold this week. I put a space heater in my room for the first time, and after an hour or so it flipped the breaker. Or so I...
  15. D

    Tracing a rain-related short circuit

    I have an intermittent short on a circuit with a GFCI breaker and some outdoor fixtures. The breaker pops after a significant rain and won't reset until after several dry days. I've tried to isolate the break by disconnecting the outdoor fixtures sequentially with no luck. Now I'm doing...
  16. A

    Help with a dead circuit

    I have a dead circuit in my kitchen that I am trying to fix. it seems to be a simple run from the panel to on outlet using BX cable to a first outlet and then a Romex cable from that outlet to a second outlet. I have identified every outlet, light switch and fixture in the entire house and...
  17. C

    UK Load in Amps on a mains single-phase circuit

    I have a 230 Volt single-phase circuit with a 100 Amp cutout fuse and a 100 Amp MCB switch, so the supply is rated at 23 kVA. Only about 13% of my total energy consumption is electricity. The remaining 87% is natural gas, supplying the following appliances (kW figures are net output power):-...
  18. C

    Microwave - 20A Circuit Required

    Hi everyone - new forum member here, looking for some guidance / advice before I try this myself or hire a certified electrician From Quebec, Canada. House was built in 2009, with everything seemingly 'up to code' -- previous homeowner spared little expense. The microwave in the kitchen has a...
  19. notsobrightspark

    ring circuit reading?

    hi guys , just testing a kitchen ring circuit. r1 1.6 ohms rn 1.6 ohms r2 2.1 ohms the kitchen is a 2.5mm ring but has spurs in 4mm cable and one small leg in 4mm (must be what was left on the van ) upon checking a figure of 8 test , im getting 1.6ohms when i was expecting 0.8ohms have i...
  20. gmdaly

    mixed cable types in single circuit

    good evening all, If I have an existing 10mm T+E from the CU to the rear of the house external ending in a junction box on the wall already in place (total length 9M) and I want to connect this to an armoured cable 2 core + CPC from the exterior junction box to a rear garden new future sauna...

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