• Online
    Chinese  
    English  
      NEWS

    Insulation material properties

    Add time:2012/3/8 Author: Views:511

    Arelativedielectric constantanddielectric loss tangent:theinsulating materialsused invariouspartsofthetwo:thepowernetworkisinsulated from each otherand capacitorsmedia (storage).The former requiresasmallrelative dielectric constant, which requirestherelative dielectric constant,andbothrequirethedielectric losstangent,especially in thehigh-frequencyandunder high pressureapplication ofinsulating materials,fora small dielectric loss,are required toadoptdielectric lossangletangent ofa smallinsulating materials.
       Insulation resistance,resistivity: Resistanceisthe reciprocalofconductivity,resistivityistheresistanceper unit volume.Conductivematerials,the smaller,thegreater the resistance, bothasareciprocal relationship,always wantthe highest possibleresistivityofinsulating materials.
       3, resistance to burning:insulating materialresistburning orleavingtheflameto preventtheabilitytocontinue to burnwhenincontact with the flame.Withthe growingapplicationofinsulating materials,resistance to burning andrequireeven moreimportant,through various means,to improve and enhancetheresistanceofinsulationmaterialsburn.Resistant toburninghigher thesecuritythe better.
     4,thebreakdown voltage ofthe electrical strength:astrong electric fieldofinsulating materialdamage,lossofinsulation propertiesintoaconductivestate,calledthebreakdown.Thebreakdownvoltageiscalledbreakdown voltage(dielectric strength).Electric strengthunder specified conditions,the breakdownvoltageto withstandthe applied voltagebetween two electrodesdistanceprovider,istheunit thicknessto withstandthe breakdown voltage.Forinsulating materials, the generalbreakdown voltage,theelectric strengthvalues​​as high as possible.
    5, tensile strength:the maximum tensile stressinthetensile testspecimenbear.Itistheinsulation materialmost widely usedmechanical test,the mostrepresentativetest.
       6, arc resistance:intheprescribedtest conditions,theinsulation materialtolerancealongthe surfaceof thearcrole.Test,theAC high voltagecurrentthroughthehigh pressurearcrolebetweenthetwo electrodes,thesurfaceoftheinsulating materialtoformaconductive layer ofthe time requiredto determinetheinsulating materialof thearc resistance.Thegreaterthetime value, thearc resistance, the better.

       HOME   |   ABOUT US   |   CONTACT US   |   JOIN US   |   LINKS   |    SITE MAP

    Contact: Mr. zhang  Mobile: 18337422037   ADD:Bayiacrossthe western part ofthe obligationsTrade