Porcelain Pin Type Insulators

The Porcelain Pin Type Insulators ST-20/J is a DIN-standard porcelain model. Its rated voltage is 20 kV. The structure height is 185 mm, and the disc diameter is 175 mm. The mechanical failing load is 13 kN. This product complies with DIN 48005. The "J" indicates an iron stirrup foot. The creepage distance is 340 mm, while the dry arcing distance is 135 mm. A 13 kN bending failing load is a typical requirement for 20 kV DIN insulators. It provides reliable mechanical performance in strong winds and conditions involving conductor movement. Porcelain offers good resistance to UV exposure and aging, which supports a long outdoor service life. We use an isostatic pressing process to produce the porcelain body. This process provides higher density and better uniformity than conventional forming methods. The Porcelain Pin Type Insulators is used on 20 kV medium-voltage lines, pole-mounted switches, and cable termination poles.

We have a dedicated production control process for DIN-standard products. DIN standards have strict requirements for dimensional tolerances, especially at mounting interfaces. We use dedicated gauges to inspect molds regularly. During firing, we place these products in a separate kiln to help prevent deformation caused by high temperatures. Our technical team has 21 members and can perform detailed stress analysis. We conduct individual impact tests when required by the applicable DIN requirements. We maintain complete batch records, and you can request the relevant original production records when needed. Our quality management system covers the entire process from purchasing to delivery and has been certified by a third party. We also work with several domestic testing laboratories and can arrange third-party type testing when required. These controls help ensure consistent quality for each Porcelain Pin Type Insulators order.

Normal delivery takes 25 to 35 days. We accept mixed orders with small quantities of multiple sizes, giving you greater flexibility for different project requirements. The iron stirrup foot can be finished with hot-dip galvanizing or Dacromet coating. Prices are negotiable based on order details. We regularly attend power industry trade shows, where you can meet our team and discuss your project requirements face to face. Our after-sales team responds within 24 hours. We replace manufacturing defects during the warranty period according to the agreed warranty terms. We pack the products on wooden pallets with cartons. Protective partitions between products help prevent collisions and damage during transportation. This Porcelain Pin Type Insulators model provides durable performance for medium-voltage power networks using DIN standards.

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