Wood Pole Overhead Lines
Concentrating on the mechanical aspects of distribution wood pole lines, this informative text includes coverage of live line working, environmental influences, climate change and international standards.
TABLE OF CONTENTS Wood Pole Overhead Lines
8.2: Conductor characteristics
8.2 Conductor characteristics
The range of physical characteristics to be considered as far as overhead line (OHL) conductors go are listed in Table 8.1.
| Property | Reason |
|---|---|
| High conductivity | to give adequate current carrying capacity and low voltage drop |
| High strength | to maintain ground clearance in long spans |
| Low weight | as above |
| Flexibility | avoid vibrational fatigue failure |
| Mechanical stability | to withstand a variety of loading conditions |
| Physical stability | to withstand environmental conditions (e.g. corrosion resistance) |
| Lifetime stability | to maintain the characteristics for 40 50 years |
The characteristics required can be obtained by a combination of conductor geometry, material selection and control of the manufacturing process. It will be shown how these can be manipulated so that various options become available and an informed choice can be made.
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