General Order 95
Section V
Detailed Construction Requirements for Supply Lines
(Class H, L and T Circuits)
57.8 Bonding and Grounding
The provisions of Rules 57.4
, 57.6
and 57.7
for grounded cables, and grounded messengers are applicable only to cables
having metallic sheaths, and to messengers, which are effectively grounded
at both ends of each run and at intermediate points not exceeding 800 feet
apart. Where such a metal sheathed cable is supported on a messenger, each
section of cable between splices shall be permanently bonded to the messenger
at not less than two locations.
Cables not bonded and grounded as specified above shall conform
to the requirements of unprotected supply conductors with the modifications
provided in the several parts of Rule 57