Abstract: A power cord assembly for supplying power to a drilling rig is disclosed. The assembly is assembled such that it can be easily dismantled for infield repairs and replacement of a malfunctioning component, hence it is a re-buildable unit. A series of cords containing a stack of cables that supply power to the Top Drive unit are secured in position within a hose, by several compression blocks. The compression blocks are concentric to each other about an axis. A hanging system surrounds the compression blocks and the hanging system is further surrounded by a hose. A series of king clamps are placed around the hose for firmly securing the hose in its position. The king clamps are removed when needed (for example for repair of a cable) so that all the components which make up the assembly are easily accessed by a user. The assembly is secured to a drilling rig and goes up and down in a continuous fashion during use.