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TR288 station post insulator

TR288 station post insulator is designed, tested and produced in accordance with ANSI standard, made by wet-process porcelain and used of substations.

TR288 station post insulator

The features of TR288 station post insulator
◆ Used for supporting and insulating conductors
◆ Insulator end fittings: nuts, bolts and flange
◆ Excellent creepage distance
◆ Nominal voltage: 22kv to 25kv
◆ Type of insulator: post insulator
◆ Used with switch, air switchgear

TR288 station post insulator main technical parameters

Type TR208
Leakage distance, mm 610
Cantilever strength, KN 8.9
Tension strength, KN 44.5
Torsion strength, N.m 904
Compression strength, KN 44.5
Low frequency test voltage, KV 15
Critical impulse flashover positive voltage, KV 170
Low frequency wet withstand voltage, KV 60
Impulse withstand voltage, KV 150

TR288 station post insulator also called bus support insulator or strut insulator used in substations, stations, power plant and other electrical equipment.

TR288 station post insulator can be also supplied in the light of client’ requirements, Orient Power also produced other type porcelain insulator and polymer insulators.


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More than 40 years experience in power industry since 1978 as a composite insulator manufacturer in China, advanced manufacturing process, strict quality control test system, ISO certificated, excellent communication, considerate services, enable us to be a leading composite insulator manufacturer of composite insulator and polymer insulator.
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