ANSI C29.5 Low & Medium Voltage Pin Insulator (Class 55 Series)
High-performance wet process porcelain pin insulators engineered for low and medium voltage distribution lines. Fully compliant with ANSI Standard C29.5. Available in Classes 55-1 through 55-5. Features optional Semi-Conducting Glaze to effectively minimize Radio Influence Voltage (RIV) in sensitive environments.
Radio Interference Free (RIF) Technology
The defining feature of this insulator is the black semi-conducting glaze applied to the head and pinhole area. This conductive layer bonds with the standard brown glaze, effectively suppressing corona discharge and radio interference even under high voltage stress. Ideal for residential zones and telecommunication crossings.
Compliance & Material
- Standard: Fully compliant with AS 2947.2 (Australia/New Zealand Standards).
- Material: C-130 High-strength Aluminous Porcelain.
- Application: High voltage distribution networks (11kV - 33kV).
| ANSI Class | 55-1 | 55-2 | 55-3 | 55-4 | 55-5 |
|---|---|---|---|---|---|
| Cantilever Strength (lbs) | 3,000 | 2,500 | 2,500 | 3,000 | 3,000 |
| Low Freq Dry Flashover (kV) | 35 | 50/45 | 65/55 | 70/65 | 85/80 |
| Low Freq Wet Flashover (kV) | 20 | 25 | 35/30 | 40/35 | 45 |
| Impulse Flashover Pos. (kV) | 50 | 75/70 | 100/90 | 110/105 | 140/130 |
| Creepage Distance (inch) | 4 | 5 | 7 | 9 | 12 |
| Test Voltage to Ground (kV) | 5 | 5 | 10 | 10 | 15 |
| Max RIV at 1000 kHz (µV) | 2500/50 | 2500/50 | 5500/50 | 5500/50 | 8000/100 |
* Note: Values separated by slash (/) indicate Standard Glaze / Semi-conducting Glaze performance.
* 注：以斜杠 (/) 分隔的数值表示标准釉/半导体釉的性能。
Detailed engineering drawings (Fig 55-1 - Fig 55-5) available in PDF format.
提供详细的工程图纸（图 55-1 至 55-5）以 PDF 格式提供。
下载 ANSI C29.5 图纸集