The heating cable, commonly known as a geothermal cable, includes the Chndo dual conductor heating cable, which differs from the single conductor heating cable. It consists of two cores—a metal heating wire and a copper conductor—welded together. The dual conductor heating cable forms a closed loop, allowing the cable core to be folded back at the tail end of the heating cable. During installation, only the connection end of the heating cable needs to be wired. Since the dual conductor heating cable forms its own loop with all connections at one end, during construction, only the connection end needs to be linked to the power supply, and the tail end does not require wiring. It can be placed arbitrarily based on specific conditions. Compared to the single conductor heating cable, it significantly reduces construction difficulty, mitigates electromagnetic radiation, and is increasingly favored by users.