Heavy Duty Pin Insulator

The Heavy Duty Pin Insulator Pw1-33-A is an Australian-standard heavy-duty anti-pollution model. Its rated voltage is 33 kV. The structure height is 320 mm, and the disc diameter is 240 mm. The mechanical failing load is 12 kN. This product complies with AS 1304. The "A" indicates a short-shank design. The creepage distance is 755 mm, while the dry arcing distance is 419 mm. The combination of heavy-duty construction and anti-pollution design allows this product to handle 33 kV applications in heavily polluted environments. A 755 mm creepage distance is significantly longer than that of standard products, helping reduce the risk of pollution flashover. The 320 mm structure height provides sufficient insulation distance. Our high-strength porcelain formula can withstand a mechanical load of 12 kN. This product is a key component for polluted sections of 33 kV transmission and distribution lines in Australia.

We have established production processes for large, heavy-duty products. These products have thicker porcelain walls and require longer holding times during firing. We use large tunnel kilns to provide even heating throughout the ceramic body. Our non-destructive testing equipment can detect internal defects, including hidden cracks and voids. We conduct individual mechanical strength tests in accordance with AS 1304 requirements. Our technical R&D center can perform finite element analysis to optimize shed designs and load-bearing component dimensions. If you require heavier-duty products, such as models with additional sheds or larger disc diameters, we can also provide customized solutions. This product has been exported to several countries in Oceania and Southeast Asia, with positive project performance records.

Normal delivery takes 35 to 50 days. The larger size and heavier weight require additional time for production and packing, so we recommend planning your purchase in advance. We provide free samples with freight collected from the customer. We support FOB, CIF, and DDP trade terms. We pack the products in heavy-duty wooden cases and steel frames to provide protection during sea transportation. We can provide detailed photos and videos of container loading for your reference during customs clearance and shipment inspection. The warranty period is 12 months after shipment. This Heavy Duty Pin Insulator is designed for demanding conditions in high-voltage networks.

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