252kv composite substation post insulator
Product Description
Features:
1) Manufactured by means of injection whole-molding technology
2) The juncture between end fitting and core is totally embedded in HTV silicone rubber, eliminating conventional and traditional seal defects
Materials:
1) Silicon Rubber for sheds/ housing
2) Glass-fiber reinforced epoxy resin rod (ECR type) for core
3) Hop dip galvanized cast steel for metal fittings
Electromechanical specifications:
1) Rated voltage: 252kV
2) Specified mechanical load (tensile): 20N
3) Min dry arcing distance 2007mm
4) Creepage distance: 6300mm
5) Section length: 2300±3.8mm
6) Lightning impulse withstand voltage (peak value): 950kV
7) Wet 1 min power-frequency withstand voltage (effective value): 395kV
8) Routine test load: 10kN
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