This product is made of high-quality electrical round copper wire or enameled round copper wire as conductor, a variety of fluoroplastics or special engineering plastic insulation sheath, with excellent waterproof performance, electrical performance, frequency conversion use and strong mechanical properties, suitable for all kinds of water-filled, oil-filled high-temperature diving motors or similar conditions of electrical appliances, driving devices, especially ground heat pumps, and in line with environmental protection standards. This product is suitable for voltage 1140V, temperature resistance -100 ℃-180 ℃, water pressure 1.5MPa, acid and alkali salt, oil and corrosive medium. The product performance is stable and reliable during use.