... vertical burial.Can bear moderate positive pressures,Unable bear tension forces.VV23VLV23Copper/Aluminum core,PVC insulated,steel tape armored ... do vertical burial.Can bear moderate positive pressures and tension forces.VV33VLV33Copper/Aluminum core,PVC insulated,thin steel ... or sea-bottom.Can bear greater positive pressures and tension forces.VV43VLV43Copper/Aluminum core,PVC insulated,thick steel ...