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EHV Transmission Line Composite Suspension Insulator 800kV IEC 61109 Standard

Categories Composite Suspension Insulator
Brand Name: Changgong
Model Number: FXBZ-±800/210 to FXBW-±800kV/300kN
Certification: KEMA STRI SGS Type test reports
Place of Origin: China
MOQ: As per client's requirements
Price: Will be decided according to the required technical specifications and quantity from the clients
Supply Ability: 25 thousand pieces per year
Delivery Time: Start from 30 days
Packaging Details: Usually packed in cartons, Paper tubes or wooden boxes
Product Type: ±800kV composite suspension insulators
Application: ±800kV overhead transmission lines
Product color: As per clients requirements
Packed in: Paper tubes or wooden boxes
Standards: IEC 61109/ANSI
Model: FXBZ-±800/210 to FXBW-±800kV/300kN
Tested through: Type tests and design tests according to IEC and ANSI
Produced by: HTV injection technology
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    EHV Transmission Line Composite Suspension Insulator 800kV IEC 61109 Standard

    EHV Transmission Line Composite Suspension Insulator 800kV IEC 61109 Standard


    Dimensions and Characteristics of ±800kV Suspension insulator

    Figure. NoModelRated VoltageSpecified Mechanical LoadSection Length

    Insulating length

    Minimum CreepageFull-Wave Impulse Withstand Voltage (Peak)

    Wet Switching Impulse Withstand Voltage


    1 Min Wet DC Withstand Voltage

    Weight (for Reference)















    1, ±800kV Suspension insulators are widely used in ±800kV overhead transmission lines and substations.

    2, Dead end fittings are up to the requirements from the clients, usually we use ball, socket, tongue, clevis for tension insulators with forged steel. The dimensions and coupling size can be exactly according to the specification requirements from the utilities.

    3, The silicon rubber color of the insulators are also up to the requirements from the clients and all the silicon rubber materials past 5000 hours aging test silicon content test and hydrophobicity test.

    4, ECR core rods are used in all the insulators, so we can guarantee a very good mechanical strength and anti-acid pollution performance for the insulators.

    5, All our insulators were type tested and design tested in accordance with IEC61109, maximum RIV is 100µV when tested at 1MHz and10% over nominal line ground voltage for indicated system voltage.

    6, All the ±800kV Suspension insulators are with two corona rings.


    1, ±800kV EHV DC overhead transmission power lines.

    2, ±800kV EHV DC substations

    Competitive Advantages:

    The advantages of polymer/composite insulators over ceramic/porcelain insulators
    General comparison
    FactorCeramic/porcelain insulatorsPolymer/composite insulators

    Heavy weight- For example
    400kV - about 140kgs

    90% lighter than them but with same mechanical strength
    400kV -- Around 15kgs

    FragilityHighly fragility to shock and vibrationNo fragility to shock and vibration
    Packing and transportationRisky and very costlyEasy and economical
    InstallationRisky expensive and more labor requiredVery easy and economical
    Maintenance costVery expensiveLow
    VandalismMore susceptibleHighly resistant
    Breakages and secondary damageHighly fragile- 10-15% breakages are reported during transportation storage and installationFlexible and therefore highly resistant to breakages
    Technical comparison
    Mechanical failureReduction in mechanical strength and separation during to pings getting erodedJust with single piece, so no such kind of problem
    Resistance to flashover and puncturesLowHigh
    Anti tracking and erosion resistanceVery low- poor tracking resistanceExcellent tracking resistance avoids erosion or tracking of the housing material
    Dielectric strengthLower than polymerExcellent insulation performance
    Contamination and pollutionHighly effectedNot effected and has much longer life
    HydrophobicityNo hydrophobicity, ceramic surface forms water films on the surface making easy path leading to more flashoverVery excellent hydrophobicity
    Self cleaning qualityNo, dirty sand salt snow etc are easily attractedYes, due to hydrophobicity recovery characteristics
    Tension strengthGoodBetter during crimping technology
    MaintenanceNeeds maintenance like cleaning washing and greasingNot required at all
    SafetyAre easy to explosion and breakages due to high fragile properties and stone throwing or gun shootingProvide very high level of safety superior flexibility and strength. not easy to break due to stone throwing or gun shooting.

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