Polymer Pin Type Insulators

The Polymer Pin Type Insulators ST-15/J is a DIN-standard polymer model. Its rated voltage is 15 kV. The structure height is 150 mm, and the disc diameter is 150 mm. The mechanical failing load is 12.5 kN. This product complies with DIN 48005. The "J" indicates an iron stirrup foot. The creepage distance is 270 mm, while the dry arcing distance is 110 mm. The polymer material makes the product much lighter than porcelain products of the same size. This reduces the effort required for handling and installation. The polymer surface is hydrophobic, so water droplets do not easily form a continuous film on the sheds. This feature helps improve pollution resistance. The product is used on 15 kV overhead lines. It is especially suitable for weight-sensitive locations and difficult-to-access construction sites. City distribution network upgrade projects also commonly use this type of product.

Our polymer production line has comprehensive quality control procedures. From core rod production to silicone rubber injection, we record key process parameters at each stage. We conduct interface penetration tests to check the bonding quality between the core rod and the housing. Our testing center performs mechanical tensile tests and electrical withstand tests. Before shipment, each unit also undergoes a partial discharge test. This test is important for reliable long-term operation. Our R&D team can adjust shed shapes or material hardness according to customer requirements. We also have environmental management system certification and strictly control organic waste gas generated during production. For European exports, we can provide RoHS or REACH compliance statements. These controls help ensure consistent quality for each Polymer Pin Type Insulators order.

Normal delivery takes 25 to 30 days. The minimum order quantity is low, making the product suitable for trial orders. We provide free samples with freight collected from the customer. During production, you can request random inspections or pre-shipment inspections. We accept L/C and T/T payment methods. Both FOB and CIF terms are available. We pack the products in strong export cartons or wooden cases. Foam cushioning inside the packages helps keep each piece securely in place. We recommend checking the packages upon receipt. If you find any issues, please take photos and contact our team promptly. This Polymer Pin Type Insulators model offers a practical combination of weight savings and compliance with DIN requirements.

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