Original Version
Appendix E (Page 2)
New Rule, Appendix E page 2
Strikeout and Underline Version
Appendix E (Page 2)
The following clearances are guidelines only. These are meant to compliment Rule 35.
RECOMMENDED CLEARANCES
The radial clearances shown below are only a guide for minimum clearances that should be established, when trimming, between the vegetation and the energized conductors and associated live parts whenever practicable.
A |
Radial clearances for any conductor of a line operating at 110,000 or more volts |
10 feet |
|
B |
Radial clearances for any conductor of a line operating at 72,000 or more volts, but less than 110,000 volts |
6 feet |
|
C |
Radial clearances for any conductor of a line operating at 2,400 or more volts, but less than 72,000 volt |
4 feet |
Trimming clearances for voltages between 2,400 and 72,000 volts may be reduced where primary tree wire is used.
Dead, rotten, and diseased trees or portions thereof that overhang or lean toward and may fall into the line should be felled or trimmed as soon as practicable.
Communication land electrical supply secondary (low voltage) circuits, including their service drops, should be kept clear of limbs and foliage, in new construction and when circuits are reconstructed or repaired, whenever practicable. When any of these circuits become under strain or begin to evidence abrasion, they should be remedied by slacking line or trimming. Tree guard covering is one means of protecting such circuits.
Final Version
Appendix E (Page 2)
The following clearances are guidelines only. These are meant to compliment Rule 35.
RECOMMENDED CLEARANCES
The radial clearances shown below are only a guide for minimum clearances that should be established, when trimming, between the vegetation and the energized conductors and associated live parts whenever practicable.
A |
Radial clearances for any conductor of a line operating at 110,000 or more volts |
10 feet |
|
B |
Radial clearances for any conductor of a line operating at 72,000 or more volts, but less than 110,000 volts |
6 feet |
|
C |
Radial clearances for any conductor of a line operating at 2,400 or more volts, but less than 72,000 volt |
4 feet |
Trimming clearances for voltages between 2,400 and 72,000 volts may be reduced where primary tree wire is used.
Dead, rotten, and diseased trees or portions thereof that overhang or lean toward and may fall into the line should be felled or trimmed as soon as practicable.
Communication land electrical supply secondary (low voltage) circuits, including their service drops, should be kept clear of limbs and foliage, in new construction and when circuits are reconstructed or repaired, whenever practicable. When any of these circuits become under strain or begin to evidence abrasion, they should be remedied by slacking line or trimming. Tree guard covering is one means of protecting such circuits.