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Doug Miller Doug Miller is offline
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Default What is NEC Code For This Grounding Scheme ?

In article 8WPMi.4429$P06.3535@trnddc05, Tom Horne wrote:
Doug Miller wrote:
In article 8qFMi.23588$Im1.3537@trnddc01, Tom Horne

wrote:
John Ross wrote:


If it does trigger the new code, what are the restrictions in doing
this? Can you find where the old wire connected to the pipe and then
splice that to new wire and run it to within 5 feet?

Only if you splice it by non reversible means such as a crimp connector.


Under 250.64(C)(3), he's also permitted to install a busbar where the old

wire
connects to the pipe, connect the wire to the busbar instead, and run a

jumper
from the busbar to the pipe within 5' of the entrance.


That is only true if all of the other Grounding Electrode Conductors
also come together at that grounding buss bar. I know that the code
does not specifically say that but most inspectors will reject it as an
unlawful splice if it is not in fact a single common grounding point.


Well, that shouldn't be too hard for him to manage, since right now he just
has the one (to the water pipe, more than 5' from the entrance) and he's
planning to add one more -- easy enough to tie them together at one point.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.