Bob,
You must have gotten one of aluminum filler caps and neck. Mine is
plastic but looks like aluminum. Did you check for continuity across
portions of the neck?
Dale
Dale
<ptag.dev@ukonline.co.uk> writes:
> <ptag.dev@ukonline.co.uk>
>
> Hi! Dale,
> I've presumed they mean the aliminium neck to the filler. My system
> has
> always to have the fuel supply pump grounded at the exhaust , I make
> sure I
> touch the neck with a damp finger whilst removing the cap and I
> touch the
> fuel nozzle on to the neck whilst filling.
> No problems yet but can't say I've ever found really dry conditions
> in
> Europe yet.
> Regards
> Bob Harrison G-PTAG
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com]On Behalf Of Dale
> Hetrick
> To: europa-list@matronics.com
> Subject: Re: Europa-List: Static Charges and how to avoid them
>
>
>
> All,
> There seems to be a lot of reliance on grounding the "filler cap"
> plus
> other components to create a grounding path. If other "filler caps"
> are
> like mine, it's not possible because its plastic, not aluminum as
> it
> appears to be.
> Dale
> A#140
> <fillinger@ameritech.net> writes:
> > <fillinger@ameritech.net>
> >
> > DuaneFamly@aol.com wrote:
> > > So am I to conclude that there should be two separate
> electrical
> > bonds
> > > in the plane? One for all the regular things that need
> electrons
> > to
> > > operate (lights, engine, instruments, etc.) and a separate one
> > that
> > > bonds the various nonoperating parts of the fueling systems to
> a
> > > single point that one can attach a ramp ground wire to and the
> > > container that the fuel is presently in when refueling.
> >
> > There is no need for the A/C's electrical system ground be
> involved,
> > but
> > a practical consideration is that airport fueling personnel will
> > attach
> > the bonding wire to the exhaust pipe. One need minimally only bond
> > the
> > metal filler opening, so I suppose one could placard the filler
> to
> > that
> > effect and provide a means of attaching the clip.
> >
> > If by "bonding the various nonoperating parts of the fueling
> system"
> >
> > means other than the filler cap, then I believe that's more
> > hazardous.
> > What will happen is that any static accumulating in the vicinity
> of
> >
> > those metal parts will be sent to the filler cap, unnecessarily
> > raising
> > its voltage potential. If the filler cap is also earthed in some
> > way,
> > then there's no hazard. Even one's body can drain off the charge
> if
> > the
> > conditions are right. However, it's best to leave any static
> deep
> > inside the system, and this is the reason that filling an
> ungrounded
> >
> > metal can is more hazardous than a plastic container, where
> static
> > charges tend to remain where they accumulate.
> >
> > Regards,
> > Fred F.
> >
> >
>
>
>
>
>
>
>
>
>
>
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