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General
This specification covers the requirements for a transmission
voltage, extruded dielectric cable terminations for SF6 Gas
Insulated Substation (GIS) applications. The termination design
shall be G&W style PATR and suitable for use on single
conductor cables through 245 kV. The terminations shall be
used on copper or aluminum conductor cable with extruded insulation
from 240-2500 mm2 (500 - 5000 kcmil).
Standards
and Ratings
The
terminations shall be designed, tested and built in accordance
with applicable sections of IEC 840, IEC 859, IEEE 48 for
Class 1 terminations, AEIC CS7 and AEIC CS6. The terminations
shall be rated:
| Rated Voltage, kV (IEC) |
72.5 |
123 |
145 |
170 |
245 |
| Rated Voltage, kV (IEEE) |
69 |
115 |
138 |
161 |
230 |
| Rated Voltage, kV (IEEE) |
350 |
550 |
650 |
750 |
1050 |
Standard Components
• Epoxy insulator with built-in cable shield break
• Mechanical shrink stress cone
• Dielectric fluid
• Retained “O” ring seals on top and bottom
• Silver-plated copper or aluminum crimp-type connector.
• Contact pad or stem connector style equipment interface
• Aluminum base plate
• Aluminum clamping ring
• Aluminum cable entrance and heat shrink cable jacket
seal
• Cable preparation kit
Options
• Bi-metallic crimp-type or migweld bi-metallic connector
with silver-plated copper top
• Wiping sleeve entrance
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