The OCK 8-35 series insulators are designed for insulating and securing current-carrying parts in electrical apparatuses and distribution devices of power plants and substations operating with alternating current at 35 kV and frequencies up to 100 Hz. They provide reliable insulation within an ambient temperature range from -60 °C to +50 °C and comply with the climatic category UHL1 according to GOST 15150.
Zaoinsta

Technical Specifications:

• Rated Voltage: 35 kV
• Rated Bending Breaking Strength: 8 kN
• Structural Height (H): 400 mm to 500 mm (depending on the model)
• Insulation Height (L): 350 mm to 425 mm
• Creepage Distance: At least 1050 mm for models A, B, D, E; at least 1160 mm for models V, G
• Withstand Voltage of Lightning Impulse: 210 kV for models A, B, D, E; 240 kV for models V, G
• Withstand Voltage at Industrial Frequency in Dry Conditions: 165 kV for models A, B, D, E; 190 kV for models V, G
• Withstand Voltage at Industrial Frequency under Rain: 120 kV for models A, B, D, E; 135 kV for models V, G
• Flashover Voltage under Pollution and Moisture: At least 42 kV
• Rated Surface Conductivity of Pollution Layer: 10 μS/cm for models A, B, D, E; 30 μS/cm for models V, G
• Permissible Pollution Degree according to GOST 9920: II for models A, B, D, E; III for models V, G

Mounting Dimensions:

Model OCK 8-35-A-2:

• Height (H): 400 mm
• Top Flange: Ø140 mm, 4 holes M12
• Bottom Flange: Ø140 mm, 4 holes Ø14 mm

Model OCK 8-35-B-2:

• Height (H): 440 mm
• Top Flange: Ø76 mm, 4 holes M12
• Bottom Flange: Ø76 mm, 4 holes M12

Model OCK 8-35-V-3:

• Height (H): 475 mm
• Top Flange: Ø127 mm, 4 holes M12
• Bottom Flange: Ø127 mm, 4 holes M12

Model OCK 8-35-G-3:

• Height (H): 500 mm
• Top Flange: Ø225 mm (or square 160 mm), 4 holes Ø18 mm
• Bottom Flange: Ø225 mm (or square 160 mm), 4 holes Ø18 mm

The insulators are manufactured according to TU 3494-024-82442590-2015 and comply with GOST R 52082.