> Strange, but true.  I have seen lots of reference to it (eg
> http://www.littelfuse.com/PDFs/AppNotes/an9312.pdf -good description
of
> automotive transients and other electrical insults like 24V jump
starts)
> I would NEVER attempt to jump start my rusty 85 Tercel with 24V - I
> value it more than that!
>
> IS0 7637 deals with automotive transients, but I do not have a full
copy
> of it.  They do discuss on-highway 24V vehicles (like transport
trucks),
> but I was hoping to find something which is a bit more pertinent to
> off-highway heavy equipment (like skidders, excavators, bulldozers,
> tractors etc.)
>
> Does anyone know of a web site with such a thing as a web site with
> downloadable ISO standards?  I am far from any sort of decent
technical
> library, and the local college, although it teaches HD mechanics and
> electronics tech programs, does not have any such references.

The worst is construction equipment. Most of the time the people with
the dead battery don't own the equipment, they just need it started.
They'll try anything available, even portable welders if they think
it'll get them going.

I believe the SAE has a set of published specs for on and off highway
vehicle electrical systems.

Tim

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