Page 736 - 2018_IRC

SERVICES

shall be of sufficient length to permit removal of such equip-
ment while retaining the integrity of the grounding path.
[250.68(B)]
E3611.4 Interior metal water piping. Where grounding
electrode conductors and bonding jumpers are connected to
interior metal water piping as a means to extend the ground-
ing electrode conductor connection to an electrode(s), such
piping shall be located not more than 5 feet (1524 mm) from
the point of entry into the building.
Where interior metal water piping is used as a conductor to
interconnect electrodes that are part of the grounding elec-
trode system, such piping shall be located not more than 5
feet (1524 mm) from the point of entry into the building.
[250.68(C)(1)]
E3611.5 Rebar type concrete-encased electrode. Where a
grounding electrode conductor or bonding jumper is con-
nected to a rebar extended from the location of a rebar-type
concrete-encased electrode installed in accordance with Sec-
tion E3608.1.2, the point of connection to the rebar extension
shall be in an accessible location that is not subject to corro-
sion of the rebar. The rebar extension shall not be exposed to
contact with the earth without corrosion protection. [250.68
(C) (3)]
E3611.6 Protection of ground clamps and fittings. Ground
clamps or other fittings shall be approved for applications
without protection or shall be protected from physical dam-
age by installing them where they are not likely to be dam-
aged or by enclosing them in metal, wood or equivalent
protective coverings. (250.10)
E3611.7 Clean surfaces. Nonconductive coatings (such as
paint, enamel and lacquer) on equipment to be grounded shall
be removed from threads and other contact surfaces to ensure
good electrical continuity or shall be connected by fittings
that make such removal unnecessary. (250.12)

2018 INTERNATIONAL RESIDENTIAL CODE ® 711
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