An insulating support device for supporting at least one conductor having a hole therein, including at least two hollow tubular insulating support members each including a partition having a circular hole concentric with the tubular support member, wherein the support members are disposed on either side of the conductor with the partition holes thereof coaxial with the conductor hole. An elongated insulating tube passes through the partition holes of the support members and the conductor hole and a support rod is passed through the insulating tube such that the pair of support members are in a free relationship with the support rod. Each hollow tubular insulating support member includes opposed half sections, each having a semi-annular shaped cross section including a semi-annular shaped partition located therein, wherein the opposed half sections are joined at their respective longitudinal edge surfaces to form an essentially hollow cylinder. End caps including a concentric hole and a peripheral raised edge portion are coupled to the ends of the hollow cylinders such that the raised edge portions surround a portion of the outer peripheral surface of the hollow cylinder support member.