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Original Version
Appendix C - Table 25
Table 25: Stringing Sags, In Inches, for Communication Conductors In Grade F Construction
Span Length, Feet | Light Loading | Heavy Loading * | |||||||||
Temperature, Degrees Fahrenheit | Temperature, Degrees Fahrenheit | ||||||||||
100 | 80 | 60 | 40 | 20 | 100 | 80 | 60 | 40 | 20 | 0 | |
100 | 7 | 6 | 4.5 | 4 | 3.5 | 9.5 | 7.5 | 6 | 5 | 4 | 3.5 |
120 | 10.5 | 8.5 | 7 | 5.5 | 5 | 13.5 | 10.5 | 8.5 | 7 | 5.5 | 4.5 |
140 | 14 | 11 | 9 | 7.5 | 6.5 | 18.5 | 14.5 | 11.5 | 9.5 | 7.5 | 6.5 |
160 | 18 | 15 | 12 | 10 | 8.5 | 21 | 18 | 15 | 12.5 | 10.5 | 9 |
180 | 22 | 18.5 | 15.5 | 13 | 11 | 26.5 | 23 | 19 | 15.5 | 13 | 11 |
200 | 27 | 23 | 19 | 16.5 | 13.5 | - | - | - | - | - | - |
220 | 32.5 | 27.5 | 23 | 20 | 16.5 | - | - | - | - | - | - |
240 | 36 | 31.5 | 27 | 23.5 | 20.5 | - | - | - | - | - | - |
260 | 42 | 37 | 32 | 27.5 | 24 | - | - | - | - | - | - |
280 | 49 | 42.5 | 37 | 32 | 27.5 | - | - | - | - | - | - |
300 | 56 | 49 | 42.5 | 36.5 | 32 | - | - | - | - | - | - |
* In heavy loading districts, sags of the given values are inadequate for the following conductors and must be increased to meet the safety factor requirements: | |
Hard–drawn copper, No. 12 AWG in spans greater than 130 feet. | Galvanized iron BB, No. 10 BWG in spans greater than 170 feet. |
Galvanized iron, EBB, No. 9 BWG in spans greater than 170 feet. | Galvanized iron, BB, No. 12 BWG in spans greater than 115 feet. |
Galvanized iron, EBB, No 10 BWG in spans greater than 140 feet. | Galvanized iron, BB, No. 14 BWG in spans of any length. |
Galvanized iron, EBB, No. 12 and No 14 BWG in spans of any length. |
Strikeout and Underline Version
Appendix C - Table 25
Table 25 deleted February 5, 2014 by Decision Number 14-02-015: Stringing Sags, In Inches, for Communication Conductors In Grade F Construction
Span Length, Feet | Light Loading | Heavy Loading * | |||||||||
Temperature, Degrees Fahrenheit | Temperature, Degrees Fahrenheit | ||||||||||
100 | 80 | 60 | 40 | 20 | 100 | 80 | 60 | 40 | 20 | 0 | |
100 | 7 | 6 | 4.5 | 4 | 3.5 | 9.5 | 7.5 | 6 | 5 | 4 | 3.5 |
120 | 10.5 | 8.5 | 7 | 5.5 | 5 | 13.5 | 10.5 | 8.5 | 7 | 5.5 | 4.5 |
140 | 14 | 11 | 9 | 7.5 | 6.5 | 18.5 | 14.5 | 11.5 | 9.5 | 7.5 | 6.5 |
160 | 18 | 15 | 12 | 10 | 8.5 | 21 | 18 | 15 | 12.5 | 10.5 | 9 |
180 | 22 | 18.5 | 15.5 | 13 | 11 | 26.5 | 23 | 19 | 15.5 | 13 | 11 |
200 | 27 | 23 | 19 | 16.5 | 13.5 | - | - | - | - | - | - |
220 | 32.5 | 27.5 | 23 | 20 | 16.5 | - | - | - | - | - | - |
240 | 36 | 31.5 | 27 | 23.5 | 20.5 | - | - | - | - | - | - |
260 | 42 | 37 | 32 | 27.5 | 24 | - | - | - | - | - | - |
280 | 49 | 42.5 | 37 | 32 | 27.5 | - | - | - | - | - | - |
300 | 56 | 49 | 42.5 | 36.5 | 32 | - | - | - | - | - | - |
* In heavy loading districts, sags of the given values are inadequate for the following conductors and must be increased to meet the safety factor requirements: | |
Hard–drawn copper, No. 12 AWG in spans greater than 130 feet. | Galvanized iron BB, No. 10 BWG in spans greater than 170 feet. |
Galvanized iron, EBB, No. 9 BWG in spans greater than 170 feet. | Galvanized iron, BB, No. 12 BWG in spans greater than 115 feet. |
Galvanized iron, EBB, No 10 BWG in spans greater than 140 feet. | Galvanized iron, BB, No. 14 BWG in spans of any length. |
Galvanized iron, EBB, No. 12 and No 14 BWG in spans of any length. |
Final Version
Appendix C - Table 25
Table 25 deleted February 5, 2014 by Decision Number 14-02-015