General Order 64-A
Section VIII
Detailed Construction Requirements For Communication Lines
(Class C Circuits)
87.5 Fastenings.
Messenger attachments shall have
a strength at least equal to that of the strand to which they are attached.
Cedar and other soft-wood poles
to which any messenger having an ultimate strength of 5000 pounds or more is
attached, shall be protected by suitable guy shims, and where necessary, hooks,
lag bolts or other equivalent means shall be employed to prevent the guy
slipping along the pole.