High-voltage gasket seal for insulating bushings that prevents electrical discharge and environmental contamination in power transmission equipment.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Hardness | 60-80 Shore A | |
| Flame Rating | UL94 V-0 | |
| Voltage Rating | 69-765 kV | |
| Compression Set | <20% (22h at 150°C) | |
| Pressure Rating | 0.5-2.0 MPa | |
| Temperature Range | -50°C to +200°C | |
| Dielectric Strength | ≥25 kV/mm | |
| Tracking Resistance | ≥600 V (CTI) |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
Electrical insulation component for high-voltage conductor pass-through in equipment enclosures.
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To provide both electrical insulation and environmental sealing between the bushing's conductive core and external housing, preventing electrical discharge, moisture ingress, and contamination while maintaining dielectric integrity.
During routine maintenance every 2-5 years, or when signs of compression set, cracking, tracking, or increased leakage current are detected. Replacement intervals depend on operating conditions and material specifications.
No, material selection depends on specific electrical, thermal, and chemical requirements. Silicone offers best temperature range, EPDM provides good ozone resistance, and FKM offers superior chemical resistance.
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