Original Version
Rule 81.3
81.3 Material and Strength
Communication poles shall meet the material and strength requirements specified in Section IV.
A. Replacement 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 in no case be less than as follows:
Poles supporting 10 wires or less of open-wire local exchange conductors |
9 inches |
Poles supporting cable, interexchange conductors, or more than 10 wires of open-wire local exchange 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
81.3 Material and Strength
Communication poles shall meet the material and strength requirements specified in Section IV.
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
in no case
Poles supporting 10 |
9 inches |
Poles supporting cable,
|
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
81.3 Material and Strength
Communication poles shall meet the material and strength requirements specified in Section IV.
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 of open- conductors |
9 inches |
Poles supporting cable, , or more than 10 of open-wire |
12 inches |
Examples of replacement circumferences which meet these requirements are given in Tables 26 and 27 of Appendix D.