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Porcelain Support Insulators (IOS)

Post Insulator IОS-110-2000 MU-01 UHL1
Post Insulator IОS-110-2000 MU UHL1
Post Insulator IОS-110-1250 MU UHL1
Post Insulator IОS-110-600 MU UHL1
Post Insulator IОS-110-400 MU UHL1
Post Insulator IОS-110-2000 M-01 UHL1
Post Insulator IОS-110-2000 M UHL1
Post Insulator IОS-110-1250 M UHL1
Post Insulator IОS-110-600 M UHL1
Post Insulator IОS-110-400 M UHL1
Post Insulator IОS-110-600 UHL1
Post Insulator IОS-110-400 UHL1
Porcelain Insulators IOS-35-2000 UHL1
Porcelain Insulators IOS-35-1000 UHL1 by VOLTA
IOS-35-500-01 UHL1 Insulators
IOS-20-2000 UHL1 Insulators
IOS-10-2000 M UHL1 Insulators

Post Insulator IОS-110-400 M UHL1

The IОS-110-400 M UHL1 insulator is designed for insulating and securing live parts of electrical equipment in complete switchgear and outdoor switchgear (ORU) of power plants and substations with alternating voltage above 1000 V at frequencies up to 100 Hz. It is recommended for use in areas with harsh climatic conditions, including high atmospheric pollution, icing, and frequent fogs.

Technical Specifications:

  • Rated voltage: 110 kV
  • Creepage distance: 2050 mm
  • Weight: 48.3 kg
  • Minimum mechanical bending strength:
    • Standardized according to GOST and factory TU: 4 kN
    • Guaranteed by the manufacturer: 8 kN
    • Actual test values: 10–13 kN
  • Minimum torsional breaking moment:
    • Standardized according to GOST: not standardized
    • Standardized according to factory TU: 2.5 kN·m
    • Guaranteed by the manufacturer: 4 kN·m
    • Actual test values: 5–8.5 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-110-400 M 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.