General Order 95
Section IV
Strength Requirements for All Classes of Lines
42 Grades of Construction
For all classes of lines, the relative order of grades is “A”, “B”, “C” and “F”, grade “A” being the highest. Supply and communication lines, where not involved in crossings, conflicts or on poles jointly used, shall be constructed and maintained so as to conform with grades of construction not less than as follows:
|
Class E supply |
Grade B |
|
Class H supply |
Grade B |
|
Class L supply |
Grade C |
|
Class C communication |
Grade F |
Supply and communication lines, where involved in crossings, conflicts
or on poles jointly used, shall be constructed and maintained so as to conform
with grades of construction not less than as specified in
Table 3.
Note: Revised March 30, 1968 by Decision No. 73813.
Table 3
42.1 Two or More Conditions
42.2 Line Crossing Two or More Lines
42.3 Line Crossing Involved Lines