Composite insulator

The 220kv post type horizontal insulators consisting of a load-bearing cylindrical insulating solid core, a housing and end fitings attached to theinsulating core.

Commodity name： Composite insulator

Product Details

The 220kv post type horizontal insulators consisting of a load-bearing cylindrical insulating solid core, a housing and end fitings attached to theinsulating core. it is intended to be subjected to cantilever, tensile and compressive loads.eed-fittings are made of ductile iron, and al ferrous parts, except stainless steel and aluminium shal be galvanized, and integral component orformed part of an insulator intended to connect it to a supporting.the top clamp for the conductor to be used for the transmission line are madeof aluminium alloy.

Core rod diameter	mm	63
Minimum creepage Line	mm	2655
Specified Cantilever Load(SCL)	kN	13
Max. Designed Cantilever Load(MDCL)	kN	6.5
Power frequency withstand voltage, dry	kV	230
Power frequency flashover voltage, dry	kV	280
Power frequency withstand voltage, wet	kV	210
Power frequency flashover voltage, wet	kV	250
Lightning impulse withstand voltage, positive	kV	550
Lightning impulse falshover voltage, positive	kV	600
Lightning impulse withstand voltage,negative	kV	580
Lightning impulse falshover voltage,negative	kV	620
Maximum RIV at 1M Hz	dB	40
Minimum dry arcing distance	mm	1050