General Order 64-A
Section VII
Detailed Construction Requirements For Trolley Lines
(Class T Circuits)
70
General.
The following rules cover certain
special details for the construction of Class T circuits, together with their
supporting messengers, span wires and appurtenances. These rules are in many cases supplemental to the rules for
supply lines in general (Class T circuits being be definition supply lines),
which general rules, including construction details of Section V, must be
observed, except where clearly inapplicable or where specifically modified
herein.