General Order 95
Section IV
Strength Requirements for All Classes of Lines
48 Ultimate Strength of Materials
Structural members and their connection shall be designed and
constructed so that the structures and parts thereof will not fail or be seriously
distorted at any load less than their maximum working loads (developed under
the current construction arrangements with loadings as specified in
Rule 43
) multiplied by the safety factor specified in
Rule 44
.
Values used for the ultimate strength of material shall comply with the
safety factors specified in Rule 44
.
48.1 Wood
Table 5 Wood Strengths
48.2 Steel
48.3 Concrete
48.4 Other Structural Materials
48.5 Conductors, Span Wires, Guys and Messengers
48.6 Tower or Pole Foundations and Footings
48.7 Metallic Service Meter Poles