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| TECHNICAL PARTICULARS OF COMPOSITE RAILWAY TRACTION INSULATORS |
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| Sl.no |
Parameter |
Unit |
Stayarm Insulator |
Bracket Insulator |
9-tonne Insulator |
| 1 |
Shed Diameter |
mm |
185/145
|
185/145
|
185/145 |
| 2 |
Unit Spacing |
mm |
489
|
555
|
540 |
| 3 |
Creepage Distance |
mm |
1050
|
1050
|
1050 |
| 4 |
Arcover Distance |
mm |
390
|
390
|
390 |
| 5 |
Electro-Mechanical Min. Failing Load |
kgfm
|
200
|
200
|
210 |
| 6 |
Coupling Designation |
kgf |
7000 |
7000 |
11000 |
| 7 |
Pf-Wet Withstand Voltage |
kV |
125
|
125
|
125 |
| 8 |
Pf-Dry Withstand Voltage |
kV |
100 |
100 |
100 |
| 9 |
DRY-Lightning Impulse Withstand Voltage positive |
kVp |
240 |
240 |
240 |
| 10 |
DRY-Lightning Impulse Withstand Voltage negative |
kVp |
260 |
260 |
260 |
| 11 |
Visible Discharge Test Voltage |
kV |
35 |
35 |
35 |
| 12 |
Weight of Unit (Approx) |
kg |
4.4
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5.0
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5.4 |
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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 |
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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. |
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4. For specific requirement, contact: CBU / Marketing, Malleshwaram, Bangalore....560012 |
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