Technical Data for Railway Insulator
Creepage Distance (mm) | Arcing Distance (mm) | Specified Mechanical Bending Load (kN) | Lightning Impulse Withstand Voltage (kV) | Dry Power Frequency Withstand Voltage (kV) | Wet Power Frequency Withstand Voltage (kV) |
| 1297 | 537 | 8 | 270 | 160 | 130 |
| 1280 | 515 | 12 | |||
| 1320 | 555 | 16 | |||
| 1499 | 537 | 8 | 290 | 175 | 140 |
| 1482 | 515 | 12 | |||
| 1522 | 555 | 16 | |||
| 1708 | 577 | 8 | 310 | 190 | 150 |
| 1670 | 555 | 12 | |||
| 1706 | 555 | 12 | |||
| 1706 | 555 | 16 |
Usage of railway insulator
The composite insulator for electrified railway has compact structure, strong integrity, good anti-pollution capability, light weight, small volume, good internal and external insulation performance, high mechanical strength and no need of regular cleaning.
It is mainly used for high-speed railway and urban light rail transportation construction, which brings great convenience to storage, transportation, installation and maintenance.
The supporting wrist arm adopts composite material, which has better anti-corrosion performance, solves the corrosion of products under various weather conditions such as damp, acid rain and so on, and can greatly extend the service life of products, providing reliable equipment for the implementation of the construction of compact circuit.
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Composite Insulators in Railway Electrification: Composite insulators play a crucial role in modern railway electrification systems, ensuring safe and efficient power transmission along electrified railway lines. These insulators are an integral component of overhead catenary systems (OCS) and are designed to withstand the challenging environmental conditions and mechanical stresses encountered in railway operations.
Material Composition and Structure: Railway composite insulators typically consist of a high-strength fiberglass core, coated with silicone rubber. The fiberglass core provides excellent mechanical strength and rigidity, while the silicone rubber housing offers exceptional electrical insulation properties and weather resistance. The outer housing also acts as a hydrophobic layer, preventing the absorption of moisture and minimizing the risk of flashovers and tracking.
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