A cable retaining apparatus for holding high voltage cables is disclosed. The apparatus has a pair of cable retaining members that are hingedly connected to each other and engage around one or more cables. A clamping device connects the ends of the retaining members that are not hinged together thereby clamping the apparatus around the cables. The hinge that connects the retaining members together is adjustable to vary the position of the hinging axis allowing the apparatus to be used over a variety of sizes of cables.