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)
  
74    Conductors
74.1 Definition
74.2 Maintenance and Inspection
74.3 Material and Strength
74.4 Clearances
74.5 Sags
74.6 Vertical and Lateral Conductors
74.7 Climbing and Working Space