Water-proof, variable-frequency and tensile power cable

The invention discloses a water-proof, variable-frequency and tensile power cable which mainly comprises two tinned copper flexible conductor cable cores, two copper conductor cable cores, a copper-clad steel tape armor layer, a neoprene sheath layer, a polytetrafluoroethylene insulating layer, a copper tape shielding layer and a copper tape armor polyolefin sheath layer, wherein the tinned copper flexible conductor cable cores and the copper conductor cable cores are uniformly and symmetrically extruded in the copper-clad steel tape armor layer; the neoprene sheath layer is wrapped outside the copper-clad steel tape armor layer; the copper tape armor polyolefin sheath layer is arranged on an outermost layer; and a drainage wire and a tensile wire are arranged in the cable. The cable has the characteristics that the cable is good in water-proof effect, high in tensile property, good in flexibility, thicker in shielding layer, excellent in shielding effect and convenient to mount, and meets mounting and use of a bridge place.