General Order 95
Section IV
Strength Requirements for All Classes of Lines
48.7 Metallic Service and Meter Poles
Metallic service and meter poles shall be designed and constructed
so that the poles and parts thereof will not fail or be seriously distorted
at any load less than the maximum working loads (see
Rule 43
for loadings) multiplied by the safety factors specified in
Table 4
, Rule 44
. The safety factors specified in Table 4, Rule 44 shall be applied as follows:
Tension: The yield strength of the metal used shall be divided
by the safety factor specified in Table 4
, Rule 44
to determine the maximum allowable working stress.
Compression: The critical buckling strength of the material used, as determined
by applicable formulas employing the effective slenderness ratio and yield
strength, shall be divided by the safety factors specified in
Table 4
, Rule 44
, to determine the maximum allowable working stress.
Shear: The yield strength of the material used shall be divided by the safety
factors given in Table 4
, Rule 44
to determine the maximum allowable working stress.
Note: Added July 26, 1966 by Decision No. 71009. Revised January 21, 1992 by Resolution SU–10.