Light -duty protection type submarine fiber cable

The utility model discloses a light -duty protection type submarine fiber cable, including optical fiber unit, interior armor, conductor, insulating layer, outer armor, outer jacket, armor in the spiral transposition multilayer outside optical fiber unit, interior armor are equipped with the conductor outward, and conductor crowded package outward has the insulating layer, and the outer armor of package is indulged outward to the insulating layer, and outer armor crowded package outward has the outer jacket, optical fiber unit is become by the optic fibre and the stainless steel nest of tubes. A light -duty protection type submarine fiber cable, outer armor adopts the steel to mould or the form mode of protection of package is indulged to the compound strip material of metal / plastics such as plastic -aluminum, economy is suitable for, can better protection lay the submarine fiber cable in the 1000m depth of water, prevents to destroy submarine fiber cable rupture line or the interrupt that brings because of