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  1. M

    Electronics question

    What I find interesting, is when the relay sticks on, the LED (to indicate N/O contact closed) isn't on. Meaning it isn't counting anymore, but there is still continuity between 15 and 18 when it should be open. It can be corrected by simply pressing the push button again and restarting the...
  2. M

    Electronics question

    No, the first switch is set to ON well before the momentary push switch is used
  3. M

    Electronics question

    I did consider that the relay wasn't man enough for the job, but it's difficult to tell when there's no real info on the blower circuits. The application is for a theatre show, where people can press a button and it starts snowing (two leaf blowers, two relays and a lot of stage snow)
  4. M

    Electronics question

    Thanks for this diagram. Yes, the switch circled red is just used for initial power up, not part of the timing. I've set it to Ws to avoid repetitive button pushes resetting the count.
  5. M

    Electronics question

    I know this forum is full of electricians, but I'm hoping one of you guys is also an expert in electronics and can help me with a project.. if so, keep reading! I am trying to run a 56V Ego leaf blower on a timer, using a remote momentary switch. The timer relay I am using is a Tele E1ZM10...
  6. M

    EV charger

    That's an interesting point. Are you saying that all new circuits require an SPD? e.g. if a new cooker or shower circuit is installed, an SPD will have to be fitted (presumably at the fuse box).
  7. M

    EV charger

    That's my understanding too, but the manufacturer of the charger is asking for an SPD as part of the extended warranty
  8. M

    EV charger

    The old charger isnt compatible with the new PHEV and the tariff it will be on
  9. M

    EV charger

    Hi, Just a couple of questions on EV chargers. We already have a 7kW EV charger installed, the ENA form was used and SSEN upgraded the supply fuse to 100A. Now after a change of car, we need to change the charger for a different brand, still 7kW. Do we need to go through the whole process again...
  10. M

    RCD on bathroom circuit

    Yep, the gas is yellow plastic into the property. So no main bonding at all. I would have said the lack of RCD is a C3 as it was done before the regulations changed. But this is beside the point really as you've answered my question - supplementary bonding doesn't rely on main bonding. Thanks...
  11. M

    RCD on bathroom circuit

    Well I probably will, but that doesn't really answer the question
  12. M

    RCD on bathroom circuit

    I'm sure that's true and I'm not going to ask him to change his mind. What I really wanted to get to the bottom of is that he specifically said that the supplementary bonding counted for nothing as there was no main bonding, therefore an RCD would be required for the bathroom circuits. That is...
  13. M

    RCD on bathroom circuit

    Thanks John. RCD not present wouldn't be a C2 though surely?
  14. M

    RCD on bathroom circuit

    Thanks for your help with this. I guess the crux of my query was whether supplementary bonding would be effective if there is no main bonding as this is what the electrician was implying. There is copper from the stopcock to the household pipes, but the supply is plastic. Likewise the gas is...
  15. M

    RCD on bathroom circuit

    Here is the scenario. EICR has been done on a flat. The bathroom doesn't have its lighting circuit protected by RCD. Other circuits in the flat are RCD protected. There is supplementary bonding in place in the bathroom with good continuity between metal pipes and from metal pipes to earth...
  16. M

    Bulkhead light for conduit

    It's only a short run of 4 lights. Looks are everything for this customer!
  17. M

    Bulkhead light for conduit

    Something like this....
  18. M

    Bulkhead light for conduit

    Hi all, I'm looking for a metal oval bulkhead that has two entry points (or suitable edges) for 20mm metal conduit to be connected from both ends. They will be horizontally mounted in line with horizontal galvanised conduit. The sort of thing you'd get in an industrial unit. I can find...
  19. M

    Immersion cut out

    Oldbuffer, maybe you're right and the problem is elsewhere. The new thermostat now cuts out, so I'm guessing this is a plumbing problem, not an electrical one. Is there anything that would cause an increase in temperature enough to trip a cut out? I don't understand how the thermostat can be...
  20. M

    Immersion cut out

    It varies, no rhyme or reason
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