These cables are listed in UL file E106785(UL1072). These cables have one or more stranded copper or aluminum conductors that are insulated with a solid, extruded dielectric. The optional designations ;

sunlight-resistant, oil resistant Ⅰ or Ⅱ, direct burial, for CT use. 35kV, EPR & XLPE insulated cables passed the qualification test by CTL(Cable Technology Laboratory, Inc)