General Order 64-A
Detailed Construction Requirements For Trolley Lines
(Class T Circuits)
Guy wires where attached to anchor rods shall be protected by the use of guy thimbles or their equivalent. Cedar and other soft-wood poles to which any guy having an ultimate strength of 5000 pounds or more is attached, shall be protected by the use of suitable guy shims, and in this case guy hooks, lag bolts or other equivalent means shall be employed to prevent the guy slipping along the pole.