Distribution Line Pin Insulator

The Distribution Line Pin Insulator 55-3 is an ANSI C29.5 standard pin insulator designed for medium voltage distribution networks. Its rated voltage is 12 kV. The structure height is 127 mm, and the disc diameter is 121 mm. The mechanical failing load reaches 11 kN. The creepage distance is 178 mm, and the dry arcing distance is 114 mm.

The 55-3 model is widely used in 12 kV overhead distribution systems. Utilities use this type of insulator for urban power networks, rural distribution lines, and industrial power supply projects. The porcelain body provides stable insulation performance under outdoor conditions. The glazed surface helps reduce moisture absorption and improves resistance to environmental aging.

The compact structure makes installation easier on straight poles, angle poles, and terminal poles. This Distribution Line Pin Insulator is a practical choice for distribution projects that require reliable electrical insulation and stable mechanical support.

We have established a complete production process for ANSI standard pin insulators. Our factory uses automatic forming equipment and tunnel kilns with precise temperature control. These processes help maintain consistent dimensions and porcelain density during mass production.

Our quality department performs appearance inspections, dimensional measurements, and electrical performance tests for each production batch. We conduct power frequency withstand tests and mechanical load tests to confirm that products meet the required 11 kN mechanical failing load.

Our production capacity supports large-volume orders. The annual output of our factory reaches 26,000 tons, which allows us to provide stable supply for utility projects and electrical equipment distributors.

We keep production records for each batch. These records help customers check product information and improve project traceability. Third-party inspection is also available before shipment according to customer requirements.

The standard production period is 20 to 30 days. For urgent requirements, we can arrange production schedules according to order quantity and delivery plans.

We support FOB and CIF trade terms. Export products are packed with wooden pallets or plywood cases to protect the porcelain surface during transportation. Each package is fixed carefully to reduce impact damage during sea shipment.

The warranty period is 12 months after shipment. Our technical team can provide product documents, installation information, and after-sales support when required.

The Distribution Line Pin Insulator 55-3 combines ANSI standard compliance, stable porcelain performance, and efficient installation for 12 kV overhead distribution systems.

All products support custom dimensions, voltage ratings, OEM/ODM services, and manufacturing based on drawings.