Re: fuel cell ?????
[Re: max_maniac]
#1669716
09/10/14 03:18 PM
09/10/14 03:18 PM
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Joined: Jan 2003
Posts: 19,363
Las Vegas
Al_Alguire
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I Live Here
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Posts: 19,363
Las Vegas
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The rulebook does not differentiate between poly and aluminum cells. Just that they require a ground wire.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: fuel cell ?????
[Re: all spooled up]
#1669717
09/10/14 04:28 PM
09/10/14 04:28 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
im removeing the poly one. and installing a aluminum cell
By rights you dont need the ground if its got good straps
or is bolted in place
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Re: fuel cell ?????
[Re: all spooled up]
#1669719
09/10/14 04:47 PM
09/10/14 04:47 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
i just installed the old ground strap no big deal thanks 
Cool.. you wont have any issues
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Re: fuel cell ?????
[Re: Al_Alguire]
#1669720
09/10/14 04:53 PM
09/10/14 04:53 PM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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Quote:
The rulebook does not differentiate between poly and aluminum cells. Just that they require a ground wire.
I recall it being non-metallic require a ground strap. Unless they recently changed the requirement
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Re: fuel cell ?????
[Re: 70HemiGTX]
#1669722
09/11/14 12:07 PM
09/11/14 12:07 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
You should run a ground wire from the filler cap ring to the frame with any cell. Think about this, your plastic cell is an insulator for your filler cap ring, therefore you need the ground. On your aluminum cell, did you put the rubber gaskets between the filler cap rings and the aluminum to seal it up? They are an automatic insulator for the filler cap ring. Yes it may touch the metal, or yea the bolts may touch the metal some where, but not enough to make a "good ground". Put a ground wire on it and you know it is grounded and there fore no arc flash threat.
That's my $1.250.
The thing with ANY plastic tank is as you pour in
fuel either by a can or at the pump you are building
static electricity and if you touch it with anything
weather it be your hand or a metal you will discharge
it and it does create a spark and if its in the right
area and the F/A ratio is close enough it will
light it up.. being that I worked in the fuel lab
we had to measure the static build up from MULTIPLE
sources... filling the tank, people sliding in and out
of the car seat and other things... so we had to have
a way to discharge this before the people could fill
the tank... doors on the filler tube area is one
easy way but we didnt like to have it discharged in
that area due to the cap vent... thats PART of the reason
you are suppose to take fuel cans out of the car
to fill them... you would ground them out when you
pick them up to place back in the car.... and we are
only talking millivolts here
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Re: fuel cell ?????
[Re: GomangoCuda]
#1669724
09/11/14 02:23 PM
09/11/14 02:23 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
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Master
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Quote:
Quote:
.... and we are
only talking millivolts here
Nope. You may have volts and amps confused. It takes about 500 volts to see a noticeable static spark. 3500 volts to feel it. Rubbing nylon clothes across typical car upholstery can generate 12,000 - 20,000 volts at 50% relative humidity. Less humidity=higher voltages. 20,000 volts can create a spark about 1/4" long. Sliding your butt across your seat and touching a freshly filled fuel container can produce a 40,000-50,000 volts spark. Obviously the amps are extremely low (perhaps 5 milliamps).
Yes... my error.. meant miliamps
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