Porcelain rod insulators for high voltage lines are used on terminal tension and corner poles on overhead power lines of 10 kV and below. The ambient temperature of their installation site should be from -40°C to +40°C, and the altitude should not be more than 1,000 m. They are used to insulate the fix the conductors. They are featured with superior electrical characteristics and belong to non-breakable insulators. They can substitute some shackle porcelain insulators and cap suspension porcelain insulators.

Execution standard: GB/T 1001.1 Insulators for Overhead Lines with a Nominal Voltage above 1,000 V-Part 1: Ceramic or Glass Insulators Units for A.C. Systems-Definitions, Test Methods and Acceptance Criteria

Main dimensions and properties

Model description: SL refers to porcelain rod insulator. In terms of the fraction after dash, the numerator is rated voltage (kV), the denominator is tensile failure load (kN).