Shf20-Uo Porcelain Pin Isolators with Stringing Sleeve Johnson Ceramic Insulator Factory
Shf20-Uo Porcelain Pin Isolators with Stringing Sleeve Johnson Ceramic Insulator Factory image
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- Overview
- Product Description
- Parameter drawing
Basic Info.
Packaging & Delivery
Product Description
HV porcelain pin insulator of SHF20G1 type
There are three modifications of the insulator after the manner of its coupling:
with the polyethylene capsule, with the composite material thread corresponding to the requirements of SFS (Finland) standard and BS (Great Britain) – a small head.
Производитель изоляторов штыревых фарфоровых ШФ-20 Г
Minimum voltage | Nominal | kV | 20 |
Puncture voltage in insulating medium | kV | 180 | |
50 Hz withstand voltage (dry) | kV | 85 | |
50 Hz withstand voltage (wet) | kV | 65 | |
Impulse withstand voltage | kV | 135 | |
Average annual number of failure, not more than | N/per year | 0.0005 | |
Nominal creepage distance, not less than | mm | 400±10 | |
Minimum mechanical failing load (bending), not less than | kN | 13 | |
Weight | kg | 3.5±0.3 |
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