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Upper Contact Insulation Support for Power Rail04.jpg
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Upper Contact Insulation Support for Power Rail03.jpg

Upper Contact Insulation Support for Power Rail - Reliable China Suppliers & Factory for DC750V/1500 Systems

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Upper Contact Insulation Support for Power Rail is an essential system designed to provide reliable insulation support and protection for DC750V/1500 third-rail power supply systems on conventional railways. This innovative solution, produced by top China Suppliers and Factories, enables efficient current collection from the upper contact rail through its advanced shoegear design. The assembly is made up of high-quality insulated brackets, clamp plates, and protective covers, all crafted from glass fiber reinforced unsaturated polyester using compression or pultrusion techniques. Key performance ratings include a static compression load of ≥500 kg for the brackets, dry flashover voltage of ≥60 kV, and wet flashover voltage of ≥30 kV. Additionally, the protective cover is engineered to withstand a 100 kg drop from a height of 450 mm without showing any signs of cracking, ensuring dependable performance under both mechanical and electrical stress. Choose our insulation support system to enhance your railway infrastructure with trusted China manufacturing standards.

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    Product Details

    Upper Contact Insulation Support and Protection System

    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.
    DC750V Compatibility Engineered specifically for conventional railway conductor rail power systems.
    Premium Insulation Glass fiber reinforced unsaturated polyester ensures high electrical safety.
    Advanced Manufacturing Compression molded brackets and pultruded covers for maximum strength.
    Complete Assembly Includes support brackets, clamp plates, cover brackets, and protective covers.

    Frequently Asked Questions

    What is the primary application of this insulation support system?

    It is designed for DC750V conductor rail power systems on conventional railways to ensure safe and reliable operation where shoegear collects current from the upper contact rail.

    What components are included in the complete assembly?

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

    What material is used to manufacture this system?

    The system is manufactured from glass fiber reinforced unsaturated polyester molding compound, combining high mechanical strength with excellent electrical insulation.

    How is the insulated support bracket produced?

    The support bracket is formed using a high-precision compression molding process to ensure consistent quality and strength.

    How is the protective cover manufactured?

    The protective cover is produced using the pultrusion manufacturing process, which provides continuous reinforcement and durability.

    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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