420kN U420B Stain-Resistant Glass Suspension Insulator

High-strength U420B glass suspension insulator with stain-resistant design. Lightweight, reduces line costs, and suits live working needs.

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    High-Performance 420kN Stain-Resistant Disc Suspension Glass Insulator

    The 420kN stain-resistant disc suspension glass insulator, model U420BP/205, is a critical component in overhead transmission lines. Manufactured by Jiangxi Huayao Electric Co., Ltd., located in Shangbu Town Industrial Park, Luxi County, Pingxiang City, Jiangxi Province, China, this insulator is designed to provide superior insulation and support for high-voltage power lines.

    Product Features

    • Material: Fiberglass
    • Application: High voltage transmission lines
    • Rated Voltage: 33kV
    • Color: Jade green
    • Certification: ISO9001
    • Standard: IEC60383

    Technical Specifications

    • Diameter (D): 380mm
    • Spacing (H): 205mm
    • Creepage Distance: 620mm
    • Coupling Size: 28mm
    • Mechanical Failing Load: 420kN
    • Tension Proof: 210kN
    • Dry Power-frequency Withstand Voltage: 90kV
    • Wet Power-frequency Withstand Voltage: 55kV
    • Dry Lightning Impulse Withstand Voltage: 140kV
    • Puncture Withstand Voltage: 130kV
    • Net Weight: 16.5kg

    Advantages of Tempered Glass Insulators

    • High mechanical strength for greater reliability under tension and pressure.
    • Excellent pollution resistance reducing flashover accidents.
    • Low self-explosion rate for easy fault detection and maintenance.
    • Simple production process, reducing costs and improving efficiency.
    • Elegant appearance enhancing the visual image of power facilities.

    Production Process

    The production process at Jiangxi Huayao Electric Co., Ltd. involves careful screening of raw materials, automatic batching, melting, pressing into shape, tempering, cold and shock testing, glue assembly, routine testing, and packaging. This meticulous process ensures high-quality and durable products capable of withstanding various environmental challenges.

    Quality Assurance

    Third-party test reports from reputable institutions like Xi'an High Voltage Apparatus Research Institute Co., Ltd. (XIHARI) and pre-shipment inspections from INTERTEK, SGS, BV, or customer-appointed experts guarantee the quality of Jiangxi Huayao's glass insulators.

    Packaging and Shipping

    With a minimum order quantity of 10 pieces, products are packaged in standard export packaging. Six pieces are placed in a wooden case, mounted on a pallet, and are shipped from Ningbo or Shanghai ports. Payment terms include TT, L/C, and FCA.

    Contact and Purchase

    For more information about Jiangxi Huayao's high-performance glass insulators, visit their official website or contact their sales team directly. Discover the advantages of choosing Jiangxi Huayao for your overhead transmission line solutions.


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