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 Span Wires, Backbones, Messengers, Etc.
77.1 Definitions
77.2 Inclusions
77.3 Material and Strength
77.4 Clearances
77.5 Fastenings
77.6 Requirements for Sectionalizing Insulators