138kV Line Post Insulator technical parameters:
Model | Rated | Specified | Structure | Minimum Dry Arc Distance | Minimum | Lightning Impulse | Wet Power Frequency |
(kV) | （kN） | （mm） | （mm） | （mm） | ≥（kV） | ≥ (kV) | |
FZSW-138/11 | 138 | 11 | 1549±30 | 1330 | 4060 | 650 | 300 |
Line post insulator radio interference low :
The radio interference of an insulator with rated voltage of 550kV is not more than 500μV at 1.1 times the operating phase voltage. No corona can be seen on sunny days and nights. The corona voltage can be seen as high as 450kV.The pillar insulator has the advantages of high mechanical strength, low dispersion and safe and reliable operation.
This insulators have good mechanical properties at low temperature:
In order to test the low temperature mechanical properties of the products, the freezing test of FZSW-138/11 insulator was carried out in a low temperature laboratory to simulate the change of outdoor temperature in winter.After several temperature cycles, the test crystals were bent and broken at low temperatures.The results showed that the bending breaking strength of insulators at -40℃ had no obvious change compared with that at room temperature.
Our company adheres to the principle of careful manufacturing, careful management, sincere service, and concerted efforts to create excellence, to serve the customers of each company and to serve the development of the national electric power industry.
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