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57-3 Locationú║í¨Porcelain Insulator >>
  • Titleú║57-3
  • Typeú║

Porcelain insulators including: HV Line Pin Insulator, Disc Insulator, Post Insulator, LV Line Pin Insulator, Shackle Insulator, Strain Insulator, Spool Insulator, Porcelain insulator for fuse cutout, etc.

Technical requirement of Line Post Insulator (57-3):

1.Creepage distance: Min.737mm;
2.Cantilever strength: 12.5kN;
3.Cantilever proof load: 5kN;
4.Critical impulse flashover, positive: 210kV;
5.Colour of insulator glazed: Grey or Brown.

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