GUARANTEED TECHNICAL PARTICULARS (GTP)
S. No. | Nomenclature | 11 kV/45 KN Disc Insulators (B&S Type) |
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1. | Type of Insulators | Type “B” |
2. | Mechanical failing load | 45 KN |
3. | Standard specification to which Material shall conform | As per IS: 731/1971 (Latest Amendment) |
4. | Color of Glaze | Brown / Dark Brown |
5. | Dimensions | |
| (a) Vertical distance between center | 145 mm. |
| (b) Outside diameter | 255 mm. |
6. | Minimum Creepage Distance | 320 mm. |
7. | Diameter of Ball pin | 16 mm. |
8. | Working Voltage | 11 kV |
9. | Visible discharge test voltage | 9 kV (Type test) |
10. | Dry Power Frequency One Minute Withstand Test Voltage | 60 kV |
11. | Wet Power Frequency One Minute Withstand Test Voltage | 40 kV |
12. | Dry Power Frequency Flashover Voltage | 75 kV |
13. | Wet Power Frequency Flashover Voltage | 45 kV |
14. | Power Frequency Puncture Withstand Test Voltage | 105 kV |
15. | Dry impulse flashover voltage Positive wave 1.2/50 | 115 KVp |
| Dry impulse flashover voltage Negative wave 1.2/50 | 120 KVp |
16. | Security Clip | R/W Type |
17. | Weight of Each Unit | 4.5 kg approx. |
18. | Tolerance | As Per ISS |
| Packing details:- | |
19. | (a) Type of Packing | Wooden Crate |
| (b) No. of Insulators in each crate | 4 Nos. |
20. | (c) Weight of each packing | 20 kg. Approx. |