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  1. Msitekkie

    OK to swap B MCB for Type C or does my C load have to go on it's own breaker?

    I have a customer who want's me to fit a 3Kw Patio heaterto a garage. - I believe this requires a Type C breaker. There is limited space in the board, so wanted to get peoples views on whether it's OK to swap an existing B type (used for sockets) for the C type, or whether the C type load needs...
  2. B

    Any way to overcome the minimum load for an LED dimmer switch?

    Per this document: https://www.lutron.com/TechnicalDocumentLibrary/048487.pdf I guess dimmer switches have a minimum load required for operation. I believe this is the problem I have run up against. In replacing the halogen bulbs in my light fixture with all LEDs functionality ceases. The...
    • BruceHugo
    • Thread
    • dimmer dimmer switch led load minimum switch
    • Replies: 2
    • Forum: DIY Electrical Advice
  3. S

    UK 16amp supply, 13amp load help..

    Hi, May be an odd one but… I’m fitting out a boat, the marina supplies 16amps shore power and they insist on gas cookers so as not to overload their supply. I’ve just seen you can buy 13amp cookers, would I be right to assume that a 13amp cooker would only ever draw 13amps and thus, would...
  4. 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):-...
  5. A

    Fused switch with two feeds but no load?

    Hello, I have a 13A fuse switch in my airing cupboard that has never done anything. I thought maybe years ago it was for an electric shower but there was no wiring in the bathroom when I re fitted it so can't be that. Upon opening the switch there are two sets of wires, 2xred(L), 2xblack(N) and...
    • alexp
    • Thread
    • feeds fused fused spur load switch
    • Replies: 8
    • Forum: UK Electrical Forum
  6. Rockingit

    Voltage to boiler fan 'drops out under load'

    Just had a call from an M&E client of mine and good mate asking to pick my brains.... large 3ph biomass boiler with (I assume variable speed) 1ph fans internally. Says he's got 230v L-N/E on the connecting plug but when the fan gets connected there's nothing on the internal fan connections...
  7. P

    16A socket with 3A load

    Hi guys. I am in a.bit of a tiz with this one, an external light with no built-in fuse carrier is required to be fed by a 16A socket backed up by a 16A rcbo due to the fact the socket will some time be used to supply a heavier load. What about over current protection of the light.
  8. M

    Meaning of Full Load Amperes (FLA)

    Hi All, I have a FCU rated at 1.1 kW (3 speeds) but stating 2.8 A (FLA). Can anyone explain me what FLA is and why 3.8 A? If I make my maths: 1100 W / 230 V is 4 78 A. Not sure what I am doing wrong. Thank you. Mark
  9. J

    Can anyone explain how load management is installed?

    Hi, I've recently come across properties with high loads exceeding max demand, especially hmos I've heard about load curtailment and relays where when one heavy load is used another cannot be used. Can anyone provide information about devices used and how to wire them.
    • Jefferson steelflex
    • Thread
    • anyone explain installed load management
    • Replies: 2
    • Forum: UK Electrical Forum
  10. C

    How to obscure load signatures that smart meters record cheaply

    So, big brother is coming to my town, and is rolling out those fancy smart meters. My question is, what is the cheapest way to mask the loads devices give as signatures to the power company? Would putting a device behind a UPS make the device type not known to the power company? If not, would...
    • cheatcode
    • Thread
    • how to load meters record smart smart meter
    • Replies: 17
    • Forum: UK Electrical Forum
  11. D

    Load Monitoring kit

    Anyone used one of these for kVA calculations? I'm fed up of approximate MD figures. If not what are people using? Heard some have GPS capabilities but I don't want to pay £££££££
  12. E

    IR testing with a full load?

    Hi all, I'm sure this question has been asked before but just can't find it. When doing the IR test on a 3phase commercial board, how do you go about testing the circuit if there are items that just can't be disconnected, ie Bank of lights or immovable equipment, is there a trick to doing this...
  13. 1Justin

    EV chargers load curtailment & remote Ct. Recommend me a brand?

    Can anyone recommend an EV charger brand/type with load curtailment (throttling) which is easy to interface by manufacturers design, with a remote Ct clamp (via radio link)? Situation as follows: Customer in 18c manor house converted to flats, living third floor. Supply head is ~ 35M away with...
  14. V

    UK 3kw constant load on a standard plug socket

    I'm charging a PHEV from a standard plug socket, and it works. However I purchased an extension and the standard plug going into the socket has melted... it got a bit too warm for a bit too long. Are there recommendations of specific plugs and cabling that could take 3kw comfortably for...
    • velocio
    • Thread
    • constant load plug socket standard
    • Replies: 13
    • Forum: UK Electrical Forum
  15. G

    UK Split Load Consumer Unit

    Looking to change the small consumer unit in my garage with a Hager Split Load Consumer Unit Complete with: 2x 100A Type a RCDs x 100A DP main switch. Reason I will have an EV charger fitted later in the year. One side of the split for the garage and the other side for the EV charger at a later...
    • gremlin
    • Thread
    • consumer consumer unit load split unit
    • Replies: 10
    • Forum: UK Electrical Forum
  16. N

    MCB max load for an oven (EICR)

    I want to check the rules when doing an EICR for MCB size for ovens. My mate says i should fail an installation because there is a 40 amp MCB on an oven rather than a 32 amp. Is he right?
  17. D

    UK RCD tripping when no load or anything switched on

    Hi, an Electrician recently replaced all switches, sockets and spot lights. They also appear to have connected an RCD to the fusebox or installed one - I don't know exactly. However, I now have no power and only a few lights will come on. The RCD is showing as tripped. I can turn all the...
  18. Rockingit

    CT meter going nuts under load

    So, I've had one of those days of chasing my tail... What should have been a simple hour's job of fitting a 3ph CT consumption meter..... no / little load = fine, behaves as expected. load (ashp compressors) = meter claims incorrect polarities, meter claims it's generating... much weirdness...
  19. J

    Existing split load 17th Install RCD question

    Customer has a large metal caravan with three phase supply feeding 3 metal Consumer units with split load RCD outlets contained within - all circuits originate form a RCD. The Boards are then fed from a TP isolate a few feet away, the earth is disconnected on eth SWA and a rod installed near...
  20. H

    Why is a PMDC motor getting hard, when on load after 10 years of service?

    Why is a PMDC motor getting hard, when on load after 10 years of service?
    • Hobbyist
    • Thread
    • after getting load motor service when years
    • Replies: 23
    • Forum: UK Electrical Forum

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