Focus on production and sales of all range MV/HV Epoxy Resin Parts
D330, HONGZHUAN JOINT OFFICE, NO.12 HONGZHUAN SOUTH ROAD, XI AN ,CHINA
APPLICATION
Epoxy cast resin indoor post insulators can be used for all indoor applications. For tropical conditions same types (with special fixing parts) are available. They are suitable for temperatures from -25℃up to +90℃.
CONSTRUCTION
Epoxy cast resin indoor post insulators are cylindrical solid insulators, with proper creepage and number of ripples.
The main dimensions are in accordance with IEC 60273-1990.
Auxiliary inserts are connected with main insert electrically.
TESTS
The following tests, according to IEC 60660-1999 are performed.
ROUTINE TESTS
ØVisual inspection
ØTesting of conductive connection of fixing inserts for post insulators type B (IEC 60660-1999)
ØPower-frequency withstand voltage (dry)
ØPartial discharge measurement
SAMPL TESTS
ØTesting of minimum failing load for bending
ADDITIONAL TEST
ØLightning impulse withstand voltage test (on request)
ØTesting of minimum failing loads (nominal loads) for bending