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Polymer Insulators




QUALITY CONTROL TEST
We believe a through testing of components and in process can ensure the quality of this new generation product to give service for years together. The different tests are carried out in our Laboratory.

Mechanical & Physical Tests on our Silicone Compound


  • Tensile Strength
  • Elongation at Break
  • Tear Strength
  • Hardness
  • Specific Gravity

  • Electrical Tests on our Silicone compound


  • Volume Resistivity
  • Break down Voltage
  • Tracking and Erosion Resistance Test

  • Resistance to Corona


  • Here a cured sheet from our Silicon compound is put in a cell under corona generating electrodes thereby exposing the Silicon rubber under corona. In this test the Silicon rubber is subjected to combined stress from electrons,oone, UV and high temperature simultaneously.

  • UV Resistance Test (ASTM G53)


  • We are equipped with the facility for exposing the vulcanized sheet made from Silicon rubber to UV light (315 nm) and dry heat simulating normal day condition.

  • Dye Penetration Test


  • It is one of the very basic tests to access the quality of the FRP rod. We regularly carry out this test on our FRP rod.

  • Water Diffusion Test


  • This is a critical test for FRP rod. Through It is quite time consuming, we are carrying out this tests on our FRP rod on regular basis.

  • Besides the above-mentioned tests, we carry out the following tests regularly on our FRP rods:


  • Water absorption test
  • Specific gravity

  • All these are to convey that we understand the importance of role of composite insulators in power transmission and the importance of their long term uninterrupted performance.



    COMPARISON CERAMIC Vs POLYMER


    FACTORS

    CERAMIC

    POLYMER

    Resistance to flashovers in Polluted atmosphere

    Low

    High

    Resistance to puncture

    Puncturable (Class:B insulators)

    Not puncturable

    Resistance to Cracking and Erosion in Polluted atmosphere.

    Low

    High

    Contamination & Pollution

    Highly affected

    Performance not affected

    Hydrophobicity

    Non hydrophobic.

    Unique Hydrophobicity character.

    Self cleaning property

    Due to Glaze and inclination of sheds.

    Due to Hyfrophobicity recovery characteristic.

    Maintenance

    Needs maintenance like cleaning, washing, greasing

    No maintenance is required

    Weight

    More

    10% to 35% of Ceramic insulator

    Resistance to breakage and Vandalism

    Breakable in Vandalism prone areas

    Unbreakable

    Artifical Pollution Test

    Mandatory

    Not applicable

    Power Arc Test

    Mandatory

    Not mandatory


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