G & W Electric
ISO 9001: 2000 and 14001 Certified
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Typical Specifications
GIS Terminations - 69 to 245kV

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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