HIGH CURRENT BUSHING ASSEMBLIES 2.5 kV CLASS, 60 KV B.I.L., 4.00″ MIN CREEP SIDEWALL OR COVER MOUNTED
Technical Specification
Product: Transformer Bushing Assembly
Application: Liquid-Filled Transformers
1. Operating Conditions
- Electrical ratings are based on use in liquid-filled transformers, with the lower end of the bushing submerged below the oil level.
- Designed for reliable performance under standard transformer operating conditions.
2. Construction and Materials
- Insulating Body: Manufactured from premium electrical-grade wet-process porcelain for high dielectric strength and mechanical durability.
- Finish: Standard gray glaze, unless otherwise specified.
- Mounting Hole Diameter: 3.38 in (85.9 mm) minimum.
3. Gaskets
- Standard Material: Nitrile (Buna-N).
- Optional Material: Cork and rubber composite.
- To specify this option, add suffix “C” to the part number when ordering.
4. Terminal (Spade) Assembly
- Standard Material: 95% minimum conductivity copper.
- Finish: Tin-plated for corrosion resistance and enhanced electrical performance.
- Optional Materials: Lower-conductivity copper alloys (e.g., brass, bronze) available upon request at discounted pricing.
5. Design Features
Designed for externally clamped mounting in transformer applications.
Ensures mechanical stability, rotational alignment, and long-term electrical reliability.

