Rat-proof anti-termite fire-proof optical cable and manufacture method thereof

Abstract

The invention relates to a rat-proof anti-termite fire-proof optical cable and a manufacture method thereof. The optical cable includes a cable core and an outer sheath. The rat-proof anti-termite fire-proof optical cable is characterized in that an anti-flaming inner sheath wraps the cable core. The anti-flaming inner sheath is coated with an armor steel wire layer. The armor steel wire layer is wrapped with a low-smoke halegon-free ceramic polyolefin fire-proof layer. Finally, the outer layer of the optical cable is wrapped with an anti-flaming nylon outer sheath having an anti-termite function. The rat-proof anti-termite fire-proof optical cable is small in outer diameter, simple in structure, high in mechanical strength and toughness. The rat-proof anti-termite fire-proof optical cable has not only a good anti-flaming fire-proof performance, but also excellent rat-proof anti-termite functions due to the arrangement of the anti-flaming nylon outer sheath having the anti-termite function, the armor steel wire layer and the rat-proof reinforcing layer. Termite corrosion and rat bite can be prevented effectively, so that the optical cable can be more suitable for complex construction environments and use environments and the communication routing reliability is improved.

Description

technical field [0001] The invention relates to a communication optical cable technology, in particular to a rodent-proof and ant-proof fire-resistant optical cable and a manufacturing method thereof. Background technique [0002] Most of the existing fire-resistant optical cables use armored steel tape and fire-resistant and heat-insulating ceramic vulcanized silicone rubber composite tape as the refractory layer of the cable, and low-smoke, halogen-free polyolefin materials are used as the flame-retardant outer cladding of the optical cable. Flame-retardant and fire-resistant optical cables are mainly used in relatively densely populated closed areas such as subways, rail transit, and tunnel traffic. The use environment of optical cables is complex, and the information transmitted is important. Most of the cables in subways and tunnels are laid underground, and the use environment is relatively closed. Rat damage and termite damage are relatively serious. The flame-retarda...

AI Technical Summary

Problems solved by technology

Flame-retardant and fire-resistant optical cables are mainly used in relatively densely populated closed areas such as subways, rail transit, and tunnel traffic. The use environment of optical cables is complex, and the information transmitted is important. Most of the cables in subways and tunnels are laid underground, and the use environment is relatively closed. Rat damage and termite damage are relatively serious. The flame-retardant material layer on the surface of the existing fire-resistant optical cable has no function of preventing rodent and termite protection, and is easily attacked by rodent and termite damage, which will damage the optical cable and cause damage to the flame-retardant layer of the optical cable, resulting in damage to the optical cable. The flame retardant performance of the fire is reduced

In addition, the use of ceramic vulcanized silicone rubber composite tape as the refractory layer of the optical cable has the problem of complicated manufacturing process

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