Compound cable used for wiring

The utility model relates to a compound cable used for wiring. The cable includes an optical unit, an electric unit and a connection unit. The optical unit is provided with an optical fiber cable core and a first outer protective layer. The optical fiber cable core includes a first wrapping tape, and a first reinforcement part and sub-cables or a combination of the sub-cables and a filler rope, which are wrapped by the first wrapping tape, wherein each sub-cable includes a tight tube optical fiber and a fiber yarn. The electric unit is provided with a power cable core and a second outer protective layer and the power cable core includes power lines and a second wrapping tape which wraps the power lines. The connection unit which is connected between the optical unit and the electric unit includes a second reinforcement part and a third outer protective layer which wraps the second reinforcement part. The first outer protective layer, the second outer protective layer and the third outer protective layer are a conjoined extrusion molding structure. The compound cable used for wiring is reasonable in structure; the optical unit and the electric unit are combined and reinforced and connected through the connection unit so that synchronous laying of the optical cable and the power lines is satisfied and construction efficiency is improved and construction cost is saved; and at the same time, the tensile strength is excellent.