Composite insulator

Product information

Electrical properties

• Rated voltage: 66 kV
• Dry lightning impulse withstand voltage: 400 kV
• BIL (Basic Insulation Level): 325 kV
• Power frequency holding voltage:
  • Wet: 175 kV
  • Dry: 275 kV

Physical characteristics

• Minimum dry arc distance: 770 mm
• Minimum crawl distance: 2172 mm

Mechanical properties

• Specified tensile strength (STL): 40 kN

Material

• Core: Glass fiber reinforced epoxy resin
• Insulating screens: Silicone rubber
• End fittings/brackets: Galvanized steel

Standard

• Uppfyller IEC 62231

Other

• Total length: approx. 873 mm
• Thread connection: M12