Customization: | Available |
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Type: | Cold Shrinkable |
Material: | Silicone Liquid Rubber |
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1. Outlet clamp 2. Grading shield 3. Core insulation
4. Polyisobutylene 5. Composite bushing 6. Stress cone 7. Fixed plate 8. Support insulator 9. Tail pipe 10. Cable
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Size mm | 48/66kV | 64/110kV | 80/138kV | 127/220kV |
H | 1270 | 1500 | 1750 | 2500 |
A | 1510 | 1935 | 2085 | 3100 |
B | 1925 | 2155 | 2400 | 3600 |
C | 450 | 450 | 450 | 650 |
D | 200 | 200 | 200 | 300 |
E | Φ22 | Φ22 | Φ22 | Φ32 |
Creepage distance | ≥2248 | ≥3906 | ≥4495 | ≥7812 |
No. | Test Name | Code |
1 | Routine test | R |
2 | Sampling test | S |
3 | Type test | T |
4 | Pre-identification test | P |
5 | Additional test | A |
Item | 66kV | 110kV | 220kV |
Partial discharge | 72kV, partial discharge not more than previously carried out items | 96kV, partial discharge not more than previously carried out items | 190kV, partial discharge not more than previously carried out items |
Power frequency withstand voltage | 120kV/30min (joint main body 60min, no flashover no breakdown) | 160kV/30min (joint main body 60min, no flashover no breakdown) | 318kV/30min (joint main body 60min, no flashover no breakdown) |
Seal test | 0.25±0.01MPa/1h for sealing fittings, porcelain bushing, composite bushing, no leakage | ||
0.6~0.7MPa/1h for epoxy bushing, no leakage | |||
Appearance test | No damage, no cracking and other defects that affect the quality and appearance |