Composite tension and suspension insulators are used for insulation and support of high voltage power lines with power frequency AC voltage 35 kV or below and frequency not exceeding 100 Hz.

The insulators should be used in areas with ambient temperature from -40°C to +40°C, and altitude not more than 1,000 m.

Execution standard: GB/T 19519-2004 Composite Insulators for AC Overhead Lines with a Nominal Voltage Greater than 1,000 V-Definitions, Test Methods and Acceptance Criteria

Main technical parameters

Model description: F refers to organic composite material; XB refers to rod suspension; 4 refers to the serial number of design, and the specific creep distance is 25 mm/kV;
In terms of the fraction after dash, the numerator is rated voltage (kV), the denominator is rated tensile failure load (kN).

Description of metal structure: the additional letters XX indicate the metal structure, W- ball and socket, Q-ball head, U-double lugs, D- single lug, Y-Y type, O-O ring, L-refers to 90° angle of a at two ends of the metal. It is parallel by default.