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Thread: FIA Kill Switch Wiring

  1. #21
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    Quote Originally Posted by MK999
    You suck at understanding the "one" on the outside to be used by the safety marshall is a T pull cord which is attached to the end of the single master cut off switch, that's why they have a hole in them, and the "cable" is as in bike brake cable, not strands of copper
    i knew i wasnt barking up the wrong tree!! thats correct

  2. #22
    Senior User Mike's Avatar
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    Quote Originally Posted by MK999
    You suck at understanding the "one" on the outside to be used by the safety marshall is a T pull cord which is attached to the end of the single master cut off switch, that's why they have a hole in them.
    You wouldnt have two ident T Pulls Mark, one would be for extinguishants & there would be a secondary button (NOT T Pull) for circuit isolation.

    Anyway, looking through 2010's MSA generic safety regs:


    External Circuit Breaker


    75.
    When operated, the circuit breaker must isolate all
    electrical circuits with the exception of those that
    operate fire extinguishers. The circuit breaker triggering
    system on saloons should be located at the lower part
    of the windscreen mounting, preferably on the Driver’s
    side or below the rear window. On Open Cars it should
    be located on the lower main hoop of the Roll-over Bar
    on the Driver’s side, or at the lower part of the
    windscreen mounting (as above).



    76.
    On cars of periods A to F, the mounting point may
    also be mounted approximately vertically below the line
    of the scuttle on the Driver’s side. The location must be
    identified by a red spark on a white-edged blue triangle
    (12cm base), and the ‘On’ and ‘Off’ positions clearly


    marked.

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    Quote Originally Posted by Lee
    The red T pull cord is the fire extinguisher. It is not, or ever will be, the electrical system cut off.
    Then why is there an electrical cut off marking next to the extinguisher one on the porsche? Also, in the image below, hard to see I know, but see the black cable that disappears behind the handbrake? It's the other end of the T pull cord that's mounted outside the car.


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    OMG! WTF? BBQ :) Lee's Avatar
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  5. #25
    OMG! WTF? BBQ :) Lee's Avatar
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    Quote Originally Posted by MK999
    Then why is there an electrical cut off marking next to the extinguisher one on the porsche? Also, in the image below, hard to see I know, but see the black cable that disappears behind the handbrake? It's the other end of the T pull cord that's mounted outside the car.
    What porsche???

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    yep, note the 2 pull cords, one for the electrical cut and one for the fire extinguisher... also, the pic wont load as its been deleted but google has it cached, 2nd line down RHS, 2 identical pull cords, one marked with extinguisher one with electrical cut off...

    http://www.google.co.uk/images?q=fia...art=80&ndsp=20

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    Quote Originally Posted by Lee
    What porsche???
    http://www.pngclub.com/forum/showpos...4&postcount=14

  8. #28
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    Quote Originally Posted by MK999
    Then why is there an electrical cut off marking next to the extinguisher one on the porsche? Also, in the image below, hard to see I know, but see the black cable that disappears behind the handbrake? It's the other end of the T pull cord that's mounted outside the car.

    Because theyll be a recessed switch, trust me.

    The pic above, I would say is a mech extinguisher switch. Ive seen them fitted like that (there are different types of extinguisher pull, not just T shaped ones)

    This picture below, a friend of mines 2008 S1600 campaign car. Note pass side of bonnet toward scuttle panel, thay little blue sqaure. Under there is a waterproof switch for isolation, next to that but out of view to the left is a mech T pull for extinguishers)


  9. #29
    Senior User Mike's Avatar
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    Quote Originally Posted by MK999
    yep, note the 2 pull cords, one for the electrical cut and one for the fire extinguisher
    Incorrect mate, one for in car mounting (driver/codriver trigger) one for external mounting. Note x2 brass mounting nipples on the handle of the red extinguisher

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    Quote Originally Posted by Mike
    The pic above, I would say is a mech extinguisher switch. Ive seen them fitted like that (there are different types of extinguisher pull, not just T shaped ones)
    It's an electrical master switch, can read here: http://www.xworksmotorsport.com/bmw11.htm

    I do actually know what I'm saying here, they're installed in friends porsche race cars and a workmates drift car to meet FIA/MSA regs.

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