The Insulated Standoff Bushing is designed to be installed in the parking stand mounted on a transformer or other apparatus. It is used together with the cable accessories such as elbow connector, elbow surge arrester and the other 600A Loadbreak Accessories. A grounding lug is provided on the standoff bushing bracket for attachment of a drain wire to ensure dead front construction. When mated with a comparably rated product, the insulated standoff bushing provides a fullyshielded, submersible, separable connector for energized operation. The standard insulated standoff bushing has a stainless steel eyebolt with a btass pressure foot. The molded EPDM rubber body is bolted to a stainless steel base bracket using a galvanized steel holddown ring.
Order Information
| Description | Reference No. | Voltage Rating | Current Rating |
| 15kV 600A Insulated Standoff Bushing | UG SB-15/600 | 15kV | 600A |
| 25kV 600A Insulated Standoff Bushing | UG SB-25/600 | 25kV | 600A |
Electrical Characteristics
| Voltage Rating | 15kV | 25kV |
| Maximum Rating Phase-to-phase | 14.4kV | 26.3kV |
| Maximum Rating Phase-to-ground | 8.3kV | 15.2kV |
| AC 50Hz 1 Minute Withstand | 34kV | 40kV |
| DC 15 Minute Withstand | 53kV | 78kV |
| BIL and 1.5 / 50µs Impulse Withstand Voltage | 95kV | 125kV |
| Partial Discharge Voltage | 11kV ( <3pC) | 19kV ( <3pC) |
| Continuous Current | 600A | 600A |
| 24h Overload | 1000A | |
| Short Time | 25kA rms sym. for 0.17s(60Hz)/0.2s(50Hz) 10kA rms sym. for 3.0s | |
| Meets ANSI/IEEE 386 , latest version. Mate with bushing interface figure 11. | ||
Bom
– Insulated Standoff Bushing
– Stainless Steel Mounting Plate
– Covering Cap
– Installation Instruction Sheet(Optional)
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