PRHLA Series Porcelain-housed Lightning Arrester
| Brand | ROCKWILL |
| Model NO. | PRHLA Series Porcelain-housed Lightning Arrester |
| Rated voltage | 10kV |
| Series | PRHLA Series |
Overview
The porcelain-housed lightning arrester uses a porcelain bushing as the external insulation, with a single-column or multi-column resistor disc column as the core, featuring an independently sealed gas space, with voltage levels covering 10kV-1,000kV AC.
Features
Excellent Insulation Performance
Strict material selection and production in strict accordance with technical requirements ensure the strength and accuracy of the porcelain-housed lightning arrester, further enhancing its insulation performance.
High Bending Strength and Shock Resistance
The internal structure is designed reasonably, using high-quality semiconductor materials, high-strength rods, and metal pressure plates to fix the resistor discs within concentric circles, making the overall structure of the lightning arrester more robust.
Reliable Sealing
A double sealing structure is adopted, such as the core being encapsulated by silicone rubber. This design can completely solve the sealing problem of the porcelain housing and prevent internal components from moisture or contamination.
Aging Resistance and Long Life
The porcelain-housed material has good weather resistance and aging resistance, able to withstand long-term erosion from UV rays, ozone, heat, and humidity, maintaining stable insulation performance and extending the service life of the lightning arrester.
Technology parameters
Project |
Value |
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rated voltage（AC） |
10kV |
20kV |
35kV |
66kV |
110kV |
220kV |
330kV |
500kV |
750kV |
1000kV |
4/10µs High Current（kA） |
100 |
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8/20µs Repetitive Charge Transfer Qrs （C） |
0.4~0.8 |
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2ms Repetitive Charge Transfer Qrs（C） |
0.8~6.0 |
|||||||||
200µs Repetitive Charge Transfer Qrs（C） |
0.3~2.4 |
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AC Aging Coefficient at 95% Charge Ratio |
＜0.9 |
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