Polymer support ribbed insulators of type IO8P-120/10 are designed for insulating and securing current-carrying parts in electrical apparatuses and distribution devices of power stations and substations operating with alternating current at voltages up to 10 kV and frequencies up to 50 Hz.

Key Technical Specifications:

• Rated Voltage: 10 kV
• Rated Bending Strength: 8 kN
• Rated Tensile Strength: 8 kN
• Construction Height (L): 120 mm
• Creepage Distance: 180 mm
• Withstand Lightning Impulse Voltage: 75 kV
• Withstand Voltage at 50 Hz in Dry Conditions: 42 kV
• Withstand Voltage at 50 Hz under Dew Conditions: 28 kV
• Breakdown Voltage in Insulating Medium: at least 97.5 kV
• Weight: not more than 0.36 kg

Insulator Designation:

• I — insulator
• O — support
• 8 — minimum mechanical bending strength, kN
• P — polymer
• 120 — construction height, mm
• 10 — rated voltage, kV
• III — version
• UHL — climatic version according to GOST 15150
• 2 — placement category according to GOST 15150

The insulators are manufactured according to TU 3494-09-53844979-2017.