This 25kV/27.5kV Post Insulator is custom-designed to address the requirements of the 25kV/27.5kV voltage tier in railway scenarios. As the railway power supply functions, it efficiently segregates the electrical conductors from the supporting elements, averting electrical leakage and protecting the integrity of the entire contact network. Beyond the essential insulation task, it must conform to the specific technical stipulations of the railway. For instance, it has to withstand the incessant vibrations from passing trains and sustain stable performance under the intricate electromagnetic circumstances along the railway tracks.
As the operating speeds of passenger trains and the load capacities of freight trains keep increasing, the standards for railway facilities have become more and more stringent. According to standards such as IEC, ANSI and GB/T, the range of bending strength for 24 - 35kV Post Insulators used in power grids and power stations is generally from 5kN to 9kN. However, the bending strength of Post Insulators for electrified railways is generally between 8kN and 20kN. For Post Insulators of the same voltage level, the core mechanical performance parameters of the products designed for railways are twice those of the products designed for power grids and power stations. This puts forward more stringent requirements for manufacturers' abilities in core rods design and manufacturing.
The 25kV/27.5kV Post Insulator for Railways showcases remarkable qualities. It offers superb insulation capabilities, ensuring dependable separation of diverse electrical components even in the harsh railway conditions. Possessing robust mechanical robustness, it can firmly uphold the electrical conductors without being perturbed by the external forces emerging during train operations. Additionally, it exhibits good resistance to environmental aspects such as dust, wind, and temperature oscillations typical of the railway environment.
Standards:
IEC 62621-2011; TB/T 3199.2-2018; Q/CR 549-2016
Specifications:
Application:
The 25kV/27.5kV Railway Post Insulator is a critical part of the catenary system. It insulates conductors from supports, endures train vibrations and electromagnetic fields. With high bending strength, it withstands forces, ensuring reliable power supply for trains.
Features:
● Superior Insulation Integrity:
With outstanding insulation traits, it reliably segregates conductors within the 25kV/27.5kV railway grid. Resilient against high voltages and adverse conditions like extreme temps and EM interferences, it stabilizes power transmission and shields the system. This is vital for the railway's uninterrupted operation and high-reliability benchmarks.
● Enhanced Mechanical Endurance:
Tailored for railways, it flaunts robust mechanical might. Sporting a 8kN - 20kN bending strength span, it firmly braces conductors, endures train-induced forces and vibrations unfailingly. Its optimized structure and materials address railway's unique mechanical hurdles, outlasting common power system insulators.
● Adaptable to Railway Standards:
Fully conforming to railway tech specs such as IEC 62621-2011, it functions flawlessly. It withstands typical railway EM fields and vibrations. This adaptability satisfies modern railway's strict demands and is key for railway activities' seamless flow.
● Durable in Railway Environment:
Built to endure, it resists railway-specific environmental elements well. Dust, wind, and temperature swings have their impacts limited to the industry's minimum level, ensuring its reliable performance.
