... strength aluminium alloy,with out waste power2.The core of wedge made of insulating reinforce plastics,withstand voltage:≥18kV not breakdown ... the insulation layer,Al-core wire are current use.4.Wedge structure ( function(){ var aBigImageSrc = [ 'http://i00.i.aliimg.com/ ... = new AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Wedge Insulation Strain Clamp