magnetic

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  1. V

    Magnetic Van Signs

    Hi Guys I want to get some resonable sizes magnetic signs and a one-way rear window sign for my van, as I have a template already on a PDF file, can anyone recommend someone or point me in the reight direction where I can get them done via the internet as it seems to be a complete waste of time...
  2. E

    Magnetic keyfob switches....

    Been trying to locate a manufacturer and/or supplier of magnetic key fob switches, but can't seem to find anything i'm looking for. The scenario is this, ..I have a rental 2 bed villa on a complex in Cyprus, that i rent out to holiday makers during the season. The couple looking after it and...
    • Engineer54
    • Thread
    • contactor electricians' talk hotel magnetic switch switches where
    • Replies: 9
    • Forum: UK Electrical Forum
  3. V

    Magnetic Door Holders 240v/Mains Fused spur or RCD ?

    Should main powered door holders be fitted with local RCD spurs, because of the close proximity factor?
    • Vapor
    • Thread
    • door electricians' talk fuse fused fused spur magnetic mains rcd spur
    • Replies: 6
    • Forum: UK Electrical Forum
  4. M

    How to wire a magnetic door hold on smoke alarm circuit?

    I am rewiring a domestic flat and part of the spec is to install magnetic door hold on the kitchen doors, this wouldn't normally be a problem for me but they must be wired in conjunction with the smoke/heat sensors. I'm just a little baffled how get them working so that incase of a fire the...
  5. H

    True south or magnetic south??

    After leaving a compass with our ground worker for any ground mount installations I always tell him use the compass to find south, Am I right in saying there is a magnetic and a true south because there is a true and magnetic North??
  6. L

    magnetic circuit

    The magnetic circuit of the transformer of an RCD shall enclose all live conductors of the protected circuit. Is this a BS7671 way of saying terminal
    • lofty84
    • Thread
    • aus circuit electricians' talk magnetic
    • Replies: 1
    • Forum: Australia
  7. B

    96v 2000w turbine Question?

    Could someone please tell me if a 2kv permanent magnet turbine with no load should spin freely or should you feel a type of mgnetic pulse when you spin it by hand? Cheers
    • boersy
    • Thread
    • aus electricians' talk magnetic question turbine
    • Replies: 6
    • Forum: Australia
  8. D

    switching ballasts

    can someone clear this up for me? is switching electronic ballasts more severe on contacts than switching magnetic? and also according to this spec Steinel it can switch 8 electronic ballasts max or 500watt of standard(low-frequency with cap) fluorescent lighting do i have that right ?for...
  9. M

    Magnetic flux

    Help Please two questions but kinda the same i think 1.Explain why the increasing the magnetic flux in the main field of a d.c motor causes the armature current to reduce 2.Explain how magnetic flux in the main field of a d.c motor may be increased and what effect this will have on the...
    • mary20
    • Thread
    • aus electricians' talk magnetic
    • Replies: 13
    • Forum: Australia
  10. C

    Fire Door Magnetic Holdbacks

    Hi I may be asked to install fire door magnetic holdbacks in a property. I know that the wiring needs to be certified to BS7671 - this is fine. I am not sure about the fire safety aspects though. Is there any particular qualification that we need to do this legally? What type (if any)...
  11. D

    Magnetic lock intercom

    Hi there anyone with any experience with door entry systems? I installed a thob sytem with a card swipe one side and an push to open the ither side in a shop this afternoon just wondering if the varistor is needed in this kind of system if so what does it do. On the instructions it's says place...
    • Delboy247
    • Thread
    • aus electricians' talk intercom lock magnetic
    • Replies: 4
    • Forum: Australia
  12. C

    Magnetic Signs

    Does anyone know where I can get magnetic car signs from. Looking for 3 or 4 and probably around A2 size'ish. I have my own artwork which would need going on the signs.
    • chrisgc
    • Thread
    • electricians' talk magnetic
    • Replies: 8
    • Forum: Business Related
  13. gaffer

    Magnetic vans signs

    Just wondered if any of you have magnetic van signs,and what the pros and cons are?.Also prices. One of the wholesalers used to have them on their delivery van and we used to turn them upside down every time they delivered,much to the annoyance of the driver:D.
  14. C

    AC Breaker for DC application?

    Hi all, I would just like to know if a 110V AC circuit breaker can be applied to 48V DC applications, for the same tripping current? The said breaker would be used for a dummy load for battery testing. Thanks.
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