Ok, NHRA requires that the master disconnect switch be located at the rear
of the car when the battery is relocated. I think the reason for the rear
location is to keep it close to the battery + terminal and to establish a
generic location so that safety workers will always know where to look. If
we put these doo hickeys all over the place then we may be doing ouselves a
disservice when the time comes for an emergency cutoff and nobody can find
it. So I have mounted two of them. One at the rear very close to the
battery and the other on my instrument panel for me to be able to kill
everything with one switch flip.
just my $0.02 wort and worth every penny!
mayf
At 12:46 PM 2/7/00 -0500, John Beckett wrote:
>I have had a cut off switch on my /CC for ten years now. It's mounted on the
>firewall, because its close to the battery as Dave suggested. Lionel's old
>Lakester had two batteries mounted in the rear and the switch close by, but
>with no body in that area it was easy to access.
>
>Where has anyone else mounted them and how do you get to it?
>
>John Beckett, LSR #79
>
>
>----- Original Message -----
>From: "dahlgren" <dahlgren@uconect.net>
>To: <Land-speed@autox.team.net>
>Sent: Monday, February 07, 2000 9:53 AM
>Subject: Re: cut-off switch
>
>
>> I would think the best place would be as close to the battery as
>> possible. In an NHRA car the battery is typically in the trunk. The
>> reason I think closest to the battery is best is because the wire that
>> runs to the switch is unprotected. Only the wire after the switch can be
>> powered down so if you have a 20 foot long car with the battery mounted
>> under the hood you will have a lot of very heavy gauge wire running to
>> the switch that is powered up at all times . We put ours about 6"from
>> the battery on the side of the car for this reason.
>> Dahlgren
>>
>> Dan Warner wrote:
>> >
>> > The disconnect switch MUST be accessible in any attitude the vehicle may
>> > come to rest in. If behind a door or panel might not be the best idea.
>NHRA
>> > style at the rear of the vehicle is good. The electrical system may have
>> > more than 1 ground, I think disconnecting the + side would be best. If
>you
>> > ask a tech head you could probably get a better answer than from me.
>I'll
>> > bet the list has any number of ideas on how to accomplish this deal.
>> >
>> > Dan W
>> > ----- Original Message -----
>> > From: Gary/Ellen Wilkinson <dan.w@mindspring.com>
>> > To: list <land-speed@autox.team.net>
>> > Sent: Friday, February 04, 2000 10:57 PM
>> > Subject: cut-off switch
>> >
>> > > attn: Dan Warner,
>> > > A couple of questions about the new battery disconnect switch, see
>III-11.
>> > > Can the switch be located under or behind a clearly marked access
>door?
>> > > Can the switch be operated remotely by a clearly marked push/pull
>lever,
>> > rod
>> > > or cable?
>> > > I assume the disconnect switch should be in the + battery cable.
>> > > Thanks for your help and response.
>> > > Gary & Ellen Wilkinson
>> > > Utah Salt Flats Racing Association
>> > >
>
>
>
>
>
L.E. Mayfield
124 Maximillion Drive
Madison, Al. 35758-8171
ph: 1-256-837-1051
http://home.hiwaay.net/~lemayf
lemay@hiwaay.net
Sunbeam Tiger, B9471136
Sunbeam Alpine Bonneville Land Speed Racer,
'66 Hydroplane Drag Boat (390 FE)
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