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Upper Contact Insulation Support for Power Rail - Reliable DC750V/1500 Solutions from China Suppliers and Factory

The **Upper Contact Insulation Support for Power Rail** system is designed to provide essential insulation support and protection for DC750V/1500 third-rail power supplies used in conventional railways. This advanced system features shoegear that efficiently collects current from the upper contact rail. Manufactured by trusted suppliers in China, the assembly includes durable insulated brackets, clamp plates, and reliable protective covers. Constructed from glass fiber reinforced unsaturated polyester through advanced compression or pultrusion processes, our products ensure exceptional strength and longevity. Key specifications include a static compression load rating of ≥500 kg for the bracket, dry flashover voltage of ≥60 kV, and wet flashover voltage of ≥30 kV. Additionally, our protective covers can withstand a drop of 100 kg from 450 mm without cracking, ensuring reliable performance under both mechanical and electrical stress. As a leading factory in the industry, we are committed to providing high-quality insulation support solutions that meet rigorous safety and performance standards. Trust us for enduring reliability and superior performance in your railway power supply applications.

    Upper Contact Insulation Support for Power Rail
    Railway Electrical Systems

    Product Overview

    Designed for DC750V conductor rail power systems on conventional railways, this overhead contact insulation support and protection system ensures safe and reliable operation where shoegear collects current from the upper contact rail. The complete assembly includes the insulated support bracket, clamp plates, protective cover brackets, and the protective cover itself. Manufactured from glass fiber reinforced unsaturated polyester molding compound, the system combines high mechanical strength with excellent electrical insulation. The support bracket is formed by compression molding, while the protective cover is produced by pultrusion.

    System Rating

    DC750V Conductor Rail Power Systems

    High-Grade Material

    Glass Fiber Reinforced Polyester

    Manufacturing

    Compression Molding & Pultrusion

    Contact Method

    Upper Contact Rail Current Collection

    Frequently Asked Questions

    Q What voltage level is this insulation support system designed for?

    The system is specifically engineered for DC750V conductor rail power systems operating on conventional railways.

    Q What components are included in the complete assembly?

    The complete assembly comprises the insulated support bracket, clamp plates, protective cover brackets, and the protective cover itself.

    Q What material is used in manufacturing this insulation system?

    It is manufactured from high-grade glass fiber reinforced unsaturated polyester molding compound, offering high mechanical strength and electrical insulation performance.

    Q What production processes are utilized for the brackets and covers?

    The insulated support bracket is formed via precision compression molding, whereas the protective cover is manufactured using the pultrusion process.

    Q How does the current collection operate with this system?

    The system is designed for setups where vehicle shoegear collects electrical current directly from the upper contact rail safely and reliably.

    Technical Specifications

    Item

    Unit

    EN standard requirement

    Thickness*

    mm

    7-15

    Static stiffness*

    N/mm³

    0.02-0.25

    Insulation resistance

    Ω

    ≤10⁸

    Compression set

    %

    ≤ 10

    Applicable standards

    DIN

    DIN 45673-7:2010

    Change after 10 million load cycles

    Static stiffness & thickness variation

    %

    ≤ 10

    Items with * can be customized according to the line requirements.

    Custmized Railway Ballast Vibration Reduction Mat EN Standard101

    Application

    Widely used across China’s rail network, the Elastic Ballast Mat delivers proven results. Installed under the ballast bed, it boosts track elasticity, cuts down ballast breakage, and improves load distribution—especially on curves and turnouts. Designed with a puncture-resistant top layer and an elastic damping layer, Ballast Mat performs reliably with or without retaining walls.

    Quality Assurance

    We have designed, manufactured, and exported ballast mats for over 20 years. Our products are installed on more than 40 metro lines across major Chinese cities like Beijing, Shenzhen, Wuxi. Customer satisfaction stands at 98%.
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    Before leaving our factory, the ballast mats will be tested strictly according to standard requirements . For customers who require more, we carry out type tests at our in-house testing centre. 

    Tests include:
    • Fatigue testing
    • Static and dynamic stiffness measurement
    • Tensile testing

    This process verifies Elastic Ballast Mat reliability under real working conditions.
    • Custmized-Railway-Ballast-Vibration-Reduction-Mat-EN-Standard01_01
    • Custmized-Railway-Ballast-Vibration-Reduction-Mat-EN-Standard01_03
    Custmized Railway Ballast Vibration Reduction Mat EN Standard101

    Production Capacity

    We handle Ballast Mat production in-house at our dedicated continuous foaming workshop. The facility runs on an automated German production line, giving us consistent quality and high output. Current annual capacity stands at 900,000 square metres of Railway ballast vibration reduction mat.

    Custom Mould Design & Manufacturing

    – In-House, Start to Finish
    Our Mould Engineering Department operates a full digital workshop equipped with more than 20 CNC machines, including machining centres, spark eroders, and wire cutters. This allows us to design and manufacture a wide range of moulds for the rail transit industry – injection moulding, rubber, SMC, and specialised types such as auto-core-pulling bush moulds.

    Annual output stands at 300 sets of moulds and tooling.

    If your project calls for a non-standard shape for Elastic Ballast Mat, a special material, or a unique production feature, we have the equipment and the experience to deliver.
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    Custmized Railway Ballast Vibration Reduction Mat EN Standard06

    Packaging & Shipping Options

    We keep packaging practical and flexible. Customer choose what works best for their order.
    Outer packaging is included as standard.
    For pallets, we offer two options:
    • Plywood pallets – for standard shipments
    • Solid wood fumigated pallets – certified for export where required
    • All packaging follows standard export practices.
    If you have specific labelling or marking requirements, let us know in advance.
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