TOWER SPOTTING REQUIREMENT FOR 132 KV DC TOWERS TYPE - P.R. & S:
Normal Span 320 M, All Span in Meters, All Loads in KGS |
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S.No |
Tower Type |
Suspension |
Angle |
Angle |
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1 |
Vertical Load of Individual Span |
Down |
Up or Down |
Up or Down |
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2 |
Deviation not to exceed |
2o |
30o |
60o |
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3 |
Individual span not greater than |
460 |
460 |
500 |
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4 |
Vertical Load Limitations |
400 |
400 |
400 |
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5 |
Permissible sum of adjustments spans for various deviation angles Notes:
|
2o 640 |
30o 640 |
6o 640 |
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6 |
a) Design long tension G.W. Cdt. |
2105 |
2105 |
2105 |
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TOWER SPORTING FOR 400 KV |
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Description Tower Type |
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DA |
DB |
DC |
DD |
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Angle Deviation not to exceed |
2o |
15o |
30o |
60o /15o |
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Vertical Load Limitations |
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Maximum Weight Span |
Down |
Down |
Down |
Down |
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Earth wire : |
Effect of both Spans |
600 |
600 |
800 |
800 |
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Effect of One Span |
300 |
300 |
400 |
400 |
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Conductor : |
Effect of both spans |
600 |
600 |
800 |
800 |
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Effect of One Span |
300 |
300 |
400 |
400 |
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Minimum Weight Span |
Down |
Up |
Up |
Up |
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Earth Wire: |
Effect of both spans |
320 |
0 |
-800 |
-800 |
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Effect of One Span |
160 |
0 |
-400 |
-400 |
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Conductor: |
Effect of both spans |
320 |
0 |
-800 |
-800 |
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Effect of one span |
160 |
0 |
-400 |
-400 |
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