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)
  
74.7    Climbing and Working Space
 
The requirements of Rule 54.7
  apply to poles supporting Class T conductors except where in accordance 
with the provisions of Rule 74.4–D
 conductors are permitted to have clearances from center line of pole less
than are specified in Table
1, Case 8
.