Description:
The IОS-110-1250 M UHL1 insulator is designed for securing live parts in distribution devices and open electrical installations (ORU) of power plants and substations. Its structure is suitable for alternating voltage above 1000 V at frequencies up to 100 Hz. The insulator is recommended for use in harsh climates, including areas with high pollution, icing, and frequent fog.

Technical Specifications:

• Rated voltage: 110 kV
• Creepage distance: ~3200 mm
• Weight: ~80–90 kg
• Minimum mechanical bending strength:
  • Standardized by GOST: 12 kN
  • Guaranteed by the manufacturer: 15 kN
  • Actual test values: up to 20 kN
• Minimum torsional breaking moment:
  • Standardized by GOST: not standardized
  • According to factory TU: 8 kN·m
  • Guaranteed by the manufacturer: 10 kN·m
• Lightning impulse withstand voltage: 450–500 kV
• One-minute power frequency withstand voltage in dry conditions: 250–280 kV
• Average wet power frequency flashover voltage:
  • Standardized by GOST: ≥250 kV
  • Actual values: 300–320 kV
• Pollution degree in the area of application: II–III.

Advantages of IОS-110-1250 M UHL1:

1. Increased bending and torsion strength reserve.
2. High resistance to pollution and aggressive environments.
3. Suitable for high humidity and icing conditions.
4. Aging resistance and long service life (overall service life – at least 40 years).
5. Modern materials with enhanced insulation capability.
6. Easy installation and reduced overall metal consumption in structures.