220kv Composite Insulator
220kv Composite Insulator produced by professional manufacturer who only focus on this field, 220kv composite insulators are used on 220kV system, the SML of 220KV Suspension Silicone composite polymer insulator is from 70kN to 210kN.
Technical data of 220KV composite insulator
Rated mechanical tension load
Min nominal creepage distance
1min power frequency wet withstand voltage (kV)
Full wave lightning impulse withstand voltage peak value (kV)
Materials of 220KV composite insulator and advantage
1). Silicon Rubber for 220KV composite insulator sheds/housing.
2). Glass-fiber reinforced epoxy resin rod for 220KV composite insulator core.
3). Hop dip galvanized cast steel for 220KV composite insulator metal fittings.
4). 5000hours aging tested.
5). IEC61109 standard.
6). 15 Years guarantee.
7). 18 Years manufacturing and exporting experience.
8). ISO9001 and ISO14001 and third party support and assurance from Europe.