MAXIMUM PERMISSIBLE SPANS IN METERS)
FOR TYPICAL LINES
Sl. No.
Particular
75 Kg/M2 Wind Pressure
100 Kg/M2 Wind Pressure
A)
33 KV Lines over 9.1 M PSCC poles with Dog/ Raccon ACSR Conductor
75
75
B)
i)
11 KV lines over 8.0 M.PSCC Poles with ACSR Conductor
a) Rabbir (7/3.35)
b) Weasel (7/2.59)
c) Squirrel (7/2.11)
65
80
100
70
90
90
(ii)
6.3 KV Single phase line Over :
8.0 M.PSCC poles with ACSR
Conductor (HVVD System)
a) Weasel (7/2.59)
110
110
b) Squirrel (7/2.11)
110
110
(iii)
LT.3 ph wire (vertical formation) :
lines over 8.0 M.PSCC
poles with ACSR Conductor
a) 3 x Rabbit + 2 x Squirrel
54.5
67
b) 3 x Weasel + 2 x Squirrel
65.5
67
c) 5 x Squirrel
67
45
(iv)
L.T. 3 ph 4 wire line :
a) Rabbit (7/3.35)
62.5
66.5
b) Weasel (7/2.59)
77.5
82.5
c) Squirrel (7/2.11)
91
100
(v)
L.T.S ph 3 wire line :
a) Weasel (7/2.59)
67
67
b) Squirrel (7/2.11)
67
67
(vi)
L.T.S ph 2 wire line :
a) Squirrel (7/2.11)
67
67
b) Squirrel (Ciry)
45
45
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