Pintype Porcelain Insulators for High Voltage Line is mainly used for insulating and supporting wires in high voltage overhead transmission lines with frequency not higher than 100 Hz. It should be installed in a place with ambient temperature from -40°C to +40°C, and altitude not more than 1,000 m.

The pin porcelain insulator consists of porcelain part and steel leg (swivel nut). The surface of the porcelain parts is white or brown, and the surface of the steel leg is hot-dip galvanized. The insulators are divided into four levels of 6, 10, 15 and 20 kV according to their rated voltage. 

Execution standard of product: GB/T 1000-2016 Dimensions and Characteristics of Pin Porcelain Insulators for High Voltage Overhead Lines

Model 

Description: (1) - Model number, represented by letters PL;

(2)- Specified the bending resistance load, in kN;

(3)- Lightning impulse withstand voltage, in kV;

(4)-Structure: C- adhesive; S-threaded connection;

(5)-Diameter of thread for lower connection, in mm;

(6)-Nominal creep distance, in mm; 

Main dimensions and properties