ANSI class DS series:15kV,25kV,28kV,35kV SPECIFICATIONUNITCATALOGUE NUMBERHDDS-1HDDS-2HDDS-3HDDS-4Voltage ClasskV15252835ANSI Class-DS15DS25DS28DS35Specified Mechanical Load (SML)kN70707070Section Lengthmm330440480530Dry Arcing Distancemm203300340404Leakage Distancemm430680792990Low Frequency Dry FlashoverkV110130150200Low Frequency Wet FlashoverkV75110130160Critical Impulse Flshover(Pos.) ...