Aierway 40.5KV Center Distance 472mm(High Altitude Pole)

Product introduction

The Aierway 40.5kV Center Distance 472mm (High-Altitude Pole) is a specialized, environmentally ruggedized version of compact medium-voltage switchgear engineered for demanding, high-altitude installations in 40.5kV distribution networks. The critical design parameter—a 472mm phase-to-phase (center-to-center) busbar distance—is specifically increased from the standard 400mm version to meet the stringent dielectric requirements imposed by high-altitude operation, where reduced air density compromises insulation strength. This product is the optimal solution for pole-mounted or compact ground-based switching stations in mountainous regions, high-plateau areas, and any location above 1000 meters sea level.

Technical Features & Construction

1.Enhanced Insulation System:
– The primary insulation is typically provided by **SF₆ gas** at a slightly higher fill pressure or with a larger gas volume within the sealed tank, working in conjunction with the increased physical clearances.

2.Ruggedized Outdoor Enclosure:
– Constructed with corrosion-resistant materials (stainless steel, aluminum alloy with special coatings) to withstand harsh mountain weather, including freezing rain, heavy snow, and strong winds.

3.Compact & Integrated Design:
– Maintains a pole-mountable, space-efficient form factor despite the increased dimensions. The 472mm spacing is optimized to provide the necessary dielectric margin without excessive size penalty.
– Integrates a 3-position SF₆ Load Break Switch (LBS) or a Vacuum Circuit Breaker (VCB) within the sealed, pressurized enclosure.

Main Technical Parameters

Parameters of Matching Vacuum Switch