Re: why ground an alarm panel.

["Bob Worthy" <securinc@xxxxxxxxxxxxx>]

"Mike Sokoly" <secure15@xxxxxxxxxxxxx> wrote in message
news:67Ilf.4815$O05.3830@xxxxxxxxxxx
> Bill wrote:
> > A cold water pipe ground might not be a good ground. Many times the pipe
> > from the meter to the house is PVC.
> >
> > Also water meters located inside a basement may have rubber grommets
which
> > electrically isolate the inside piping from the outside piping. There
> > *should* be a jumper ground wire from the outside pipe to the inside
pipe in
> > these cases. (But then the outside might be PVC after it leaves the
building
> > too.)
> >
> > New electrical service breaker panels might have two ground wires run
for
> > grounding. One to a cold water pipe ground, and the other to two ground
rods
> > spaced 6 ft. apart.
> >
> > I would run a ground wire to one of these ground rods.
> >
> > Bill, Well intended but i do believe NFPA 70 (National Electrical Code)
>          does not permit you to "share" others' ground rods.
>          When in doubt- drive your own ground rod.
>          Note: Telco and cable TV Co.s USED to drive their own rods!

bonding the ground rods is a requirment as well, I believe.