The IОS-110-600 UHL1 insulator is designed for insulating and securing live parts in electrical apparatus, complete switchgear, and bus ducts. It is used in switchgear of power plants and substations with alternating voltage above 1000 V at frequencies up to 100 Hz.

Technical Specifications:

• Rated voltage: 110 kV
• Creepage distance: 2230 mm
• Weight: 58 kg
• Minimum mechanical bending strength:
  • Standardized according to GOST and factory TU: 6 kN
  • Guaranteed by the manufacturer: 10 kN
  • Actual test values: 13–14.5 kN
• Minimum torsional breaking moment:
  • Standardized according to GOST: not standardized
  • Standardized according to factory TU: 5 kN·m
  • Guaranteed by the manufacturer: 6 kN·m
  • Actual test values: 6.5–7.5 kN·m
• Lightning impulse withstand voltage: 450 kV
• One-minute power frequency withstand voltage in dry conditions: 230 kV
• Average wet power frequency flashover voltage:
  • Standardized according to GOST and factory TU: ≥230 kV
  • Actual test values: 302.3–307.7 kV
• Pollution degree in the area of application:
  • Minimum standardized value according to GOST: I
  • Actual test results: II

Advantages of IОS-110-600 UHL1 «VOLTA» Insulators:

• High mechanical bending strength reserve.
• Confirmed torsion tests.
• Suitable for use in disconnectors.
• Pollution resistance, allowing operation in harsh conditions.
• High electrical performance, confirmed by tests.
• Low aging rate, ensuring high reliability over time.
• Easier installation and reduced metal consumption in structures due to reduced insulator weight.

Manufacturer's Warranty Obligations:

• Warranty period: 10 years from the date of commissioning.
• Total service life: at least 35 years.

Transportation Preservation Measures:

Each insulator is packed in a wooden crate and individual polymer packaging, protecting it from contamination and ensuring delivery in a clean condition to the installation site.