COMPOSITE INSULATORS - 220kV
 
 
 
     
 
Sl.no Parameter Unit 220kV 220kV
1 Shed Diameter
mm
 142or/132/112 142or/132/112
2 Unit Spacing
mm
 2610 2610
3 Creepage Distance
mm
 8000 8000
4 Arcover Distance
mm
 2300 2300
5 Electro-Mechanical Min. Failing Load
kN
 70/90 120
6 Coupling Designation
mm
 16 20
7 Pf-Wet Withstand Voltage
kV
 500 500
8 Pf-Dry Withstand Voltage
kV
 575 575
9 DRY-Lightning Impulse Withstand Voltage
kVp
 1080 1080
10 Visible Discharge Test Voltage
kV
 154 154
11 Weight of Unit (Approx)
kg
 11.5 12.2
 
     
 
  1. Specific creepage distance from 16 mm / kV to 40 mm / kV
2. Length ranges from 285 mm to 4080 mm
3. Specified mechanical loads from
 
  a. 45 kN to 120 kN for 33 kV to 132 kV.
b. 70 kN to 160 kN for 220 kV.
c. 120 kN to 160 kN for 400 kV.
  4. For specific requirement, contact: CBU / Marketing, Malleshwaram, Bangalore....560012