The 2820 P polymer support ribbed insulator is designed for insulating and securing current-carrying parts in electrical apparatuses and complete switchgear units (KRU) of stations and substations. It is rated for operation at alternating voltages up to 3000 V with a frequency not exceeding 50 Hz and is intended for use in areas located at altitudes up to 1000 m above sea level. The climatic version corresponds to UHL, placement category 2 according to GOST 15150.

Key Technical Specifications:

• Rated Voltage: 3 kV
• Rated Breaking Strength in Bending: 2 kN
• Rated Breaking Strength in Tension: 8 kN
• Construction Height (L): 75 mm
• Deflection under Load at Normal Temperature: not more than 0.24 mm
• Withstand Voltage at 50 Hz in Dry Conditions: 42 kV
• Insulation Resistance: not less than 100 MΩ
• Weight: not more than 0.24 kg

The insulator is manufactured according to TU 3494-05-53844979-2014 and complies with GOST 28739.

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