General Order 95
Detailed Construction Requirements for Trolley and Electric Railway
Contact and Feeder Conductors and Their Supporting Messengers,
Span Wires, Etc. (Class T Circuits)
71.6 Marking and Guarding
Poles supporting only Class T conductors, in excess of 750 volts not on crossarms need not be marked as supporting high voltage conductors as required by Rule 51.6 .
B. Guarding of Latticed Poles and Latticed
Structures (See Rule 51.6–B