General Order 95

Section VII

Detailed Construction Requirements for Trolley and Electric Railway
Contact and Feeder Conductors and Their Supporting Messengers,
Span Wires, Etc. (Class T Circuits)

77.2    Inclusions

The provisions of Rule 77 apply to span wires, backbones, messengers, cross span wires, pull–offs, trolley strain guys and any other wires used to support trolley contact conductors and appurtenances.