Original Version
Rule 81.3-A
81.3-A Replacement of Wood Poles in Grade F Construction
Wood poles in Grade F construction shall be replaced or reinforced before the safety factor has been reduced to less than one-half, except that the circumference of sound solid wood within 18 inches above and below the ground line on such poles before replacement or reinforcement shall not be less than as follows:
|
Poles supporting 10 or less open wire conductors |
9 inches |
Poles supporting cable, or more than 10 open wire conductors |
12 inches |
Examples of replacement circumferences which meet these requirements are given in Tables 26 and 27 of Appendix D.
Strikeout and Underline Version
Rule 81.3-A
81.3-A Replacement of Wood Poles in Grade F Construction
Wood
poles in Grade F construction shall be replaced or reinforced before the safety
factor has been reduced to less than one-half, except that the
circumference of sound solid wood within 18 inches above and below the ground
line on such poles before replacement or reinforcement shall not be less than
as follows:
|
Poles supporting 10 or less open wire conductors |
9 inches |
Poles supporting cable, or more than 10 open wire conductors |
12 inches |
Examples
of replacement circumferences which meet these requirements are given in Tables
26 and 27 of Appendix D.
Final Version
Rule 81.3-A
81.3-A Replacement of Wood Poles in Grade F Construction
Wood poles in Grade F construction shall be replaced or reinforced before the safety factor has been reduced to less than one, except that the circumference of sound solid wood within 18 inches above and below the ground line on such poles before replacement or reinforcement shall not be less than as follows:
|
Poles supporting 10 or less open wire conductors |
9 inches |
Poles supporting cable, or more than 10 open wire conductors |
12 inches |