Hebei Anmei Electrical Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of ansi low voltage bushing in China, also supports customized service. If you're going to buy high quality ansi low voltage bushing made in China, welcome to get quotation from our factory.
ANSI Low Voltage Bushing
ANSI Low Voltage Bushing is a critical electrical insulation component widely used in liquid-filled distribution transformers, pad-mounted transformers, and switchgear applications. The ANSI standard for low voltage bushings has evolved alongside the growth of the North American power distribution industry, establishing a unified specification framework that ensures interchangeability and reliability across equipment from different manufacturers. As a core component of transformer tank outlets, the low voltage bushing serves to safely guide low-voltage conductors from the transformer interior to the external power grid, providing both electrical insulation and mechanical support.
Electrical Ratings
| Parameter | Standard Value |
|---|---|
| Voltage Class | 1.2 kV (standard), up to 52 kV |
| BIL Rating | 30 kV (standard), up to 200 kV |
| AC Withstand (1 min) | 10 kV rms |
| Continuous Current | 63 A – 1200 A+ |
| Max Continuous Line-to-Ground | 600 V RMS |
Material Options
| Component | Material Choices |
|---|---|
| Insulation Body | Thermoset polyester, High-temp nylon (PBT), Porcelain, Epoxy resin |
| Conductor/Stud | Copper CDA 11000, Tin-plated brass |
| Terminal Type | Eyebolt, Spade (2-hole/4-hole), Flag terminal |
| Mounting Nut | Glass-reinforced thermoplastic |
Key Features
Standards Compliance
All ANSI Low Voltage Bushings are manufactured and tested in accordance with ANSI/IEEE C57.12.25, IEC 60137, and ASTM standards. This ensures seamless replacement and compatibility with existing transformer designs, reducing inventory complexity for utilities and maintenance teams.
Advanced Material Engineering
Polymer-bodied bushings offer superior UV stability, temperature resistance (up to 140°C), and weatherability compared to traditional porcelain designs. Thermoset polyester and PBT compounds provide excellent dielectric strength, mechanical toughness, and long service life in demanding outdoor environments.
Reliable Sealing System
Fully retained Buna-N gaskets control compression and protect against UV degradation. Oil compatibility testing confirms suitability with both mineral and ester-based transformer fluids. Helium mass spectrometer leak testing ensures seal integrity at 1.0 × 10⁻⁶ atm cc/sec sensitivity.
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