The invention discloses a high-
flame-retardant temperature-resistant
corrosion-resistant
optical fiber composite cable and a preparation method thereof, and belongs to the technical field of cable manufacturing, and the high-
flame-retardant temperature-resistant
corrosion-resistant
optical fiber composite cable sequentially comprises an
optical fiber unit, a conductor layer, an insulating layer, a shielding layer, a
corrosion-resistant layer and a sheath layer from inside to outside. The optical
fiber unit adopts a
ceramic silicone rubber buffer layer; the conductor layer is a
nickel-plated
copper alloy stranded wire, and the
oxidation resistance is enhanced through nano
titanium dioxide
sol treatment; the insulating layer is of a three-layer co-
extrusion structure; the shielding layer adopts an aluminum-plastic composite belt and tinned
copper wire
braided composite structure; the anti-corrosion layer is a
polytetrafluoroethylene film subjected to
plasma treatment; the sheath layer is made of two-component
ceramic silicone rubber, is flexible after being vulcanized at normal temperature, and is converted into a
ceramic body at high temperature. According to the optical
fiber composite cable, through the
collaborative design of a multi-layer structure, the performance of excellent
continuous use stability, high salt mist environment corrosion resistance and the like is achieved, the optical
fiber composite cable is suitable for high-temperature, corrosion, fire and other severe environments, and the safety and durability of the composite cable are remarkably improved.