technical data for fXBW-170/120
Model | Rated | Specified (SML) | Structure | Minimum Dry Arcing Distance | Minimum | Critical Impulse (Pos./Neg.) | Power Frequency (Wet/Dry) |
(kV) | （kN） | （mm） | （mm） | （mm） | ≥（kV） | ≥ (kV) | |
FXBW-170/210 | 170 | 210 | 1750±30 | 1440 | 4590 | 815 | 475/500 |
210kN composite tension insulators FXBW-170/210 has higher mechanical load. The core diameter is 24mm. This serial of products have been exported to Sweden, Norway, Bulgaria, Canada etc..
main features
Composite tension insulator main features:
1. Excellent pollution-resistance performance
2. Excellent UV resistance, better tracking and erosion characteristic
3. Small size and light weight
4. Production and delivery times are much shorter than porcelain insulators
5. No insulation resistance zero value detection is required
6. No fragility
knowledge
For the reconstruction of old lines, we recommend the selection of composite insulators according to the following principles:
Composite insulators and porcelain and glass insulators weight problem
In the old line reconstruction, with composite insulators instead of porcelain and glass insulators, insulator string to lengthen, while the weight is reduced, the wind deviation increased, in the wind and may lead to insulator string high-voltage end of the tower discharge, that is, "wind flash". For this reason, we have designed the "counterweight equalizing ring", that is, the equalizing ring is combined with the counterweight hammer often used in the power sector, the counterweight equalizing ring is made of cast iron, the weight of 110kV is about 27kg, 220kV weight is 40kg. is already greater than the weight of the porcelain insulator, so such insulators will be smaller than porcelain insulator strings.
Composite insulators adapted for tension resistance
Porcelain and glass insulator tensile insulators used in the string than hanging more than 1-2 pieces of insulators, in the past, dirty flash accidents, dirty flash more than in the porcelain and proportional insulators hanging string, when the hanging string of a large number of composite insulators, tensile porcelain and glass insulators string has become a line insulation of the whole road weak link, in the 21st century, a large-scale accident of dirty flash, there are a lot of porcelain and glass insulators tensile string has occurred in the accident of the flash of dirt! In the 21st century, there are many porcelain and glass insulators in the large-scale pollution flash accidents also occurred pollution flash accident, so in the dirt more serious areas, porcelain and glass insulators to be replaced by composite insulators. To realize the above method, in the current composite insulator manufacturing level and quality level, is fully achievable.
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