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)

77.5    Fastenings

Hardware by which span wires, messengers, etc. are dead ended to poles or structures shall have a strength at least equal to that of the strand to which they are attached. Cedar and other soft–wood poles around which any span wire or messenger having an ultimate strength of 5,000 pounds or more is wrapped, shall be protected by suitable shims. Hooks, lag bolts or other equivalent means to prevent the span wire or messenger from slipping along the pole shall be provided where necessary.