CN201662643U - Pipeline mapping optical cable - Google Patents

Abstract

A pipeline projection optical cable relates to communication optical cables, and in particular to an optical cable applicable to FTTH (fiber to the home), FTTD (fiber to the desktop), FTTB (fiber to the building), FTTN /V, comprehensive wiring, equipment control and machine room use. The optical cable comprises a rubber-insulated cable core for wiring, a waterproof tape and a sheath, and is mainly technically characterized in that the cable core is a double zero-shaped hanging type rubber-insulated cable core, optical fibers are positioned at the central position of a double zero-shaped section; two steel wires are parallelly placed at two circular central positions of the double zero-shaped section of the double zero-shaped hanging rubber-insulated cable and are fastened by two yarns; and the outer faces of the steel wires are longitudinally wrapped by the waterproof tape. The pipeline projection optical cable uses corrugated aluminum compound tape to longitudinally wrap and then extrude the circular cross outer sheath black made of polyethylene (PE) or low-smoke halogen-free LSZH materials. The pipeline projection optical cable increases rounding performance and tensile strength of the cable core, and increases side pressure prevention performance and flame retardance.

Description

Pipeline projection optical cable

Technical field

The utility model relates to a kind of communication optical cable, especially relates to being applicable to that FTTH (Fiber to the home), FTTD (fiber to the desk), FTTB (Fiber To The Building), FTTN/V, comprehensive wiring, device control and machine room use.Deployment by various FTTH realizes fiberize, and the FTTH that optical fiber is advanced to family is a ultimate aim, and FTTB/FTTN then is the less expensive deployment mode of present stage.

Background technology

Pipeline projection optical cable is a kind of novel optical cable of registering one's residence, be applicable to that indoor and terminal installation etc. often need the situation of crooked optical cable, can reduce according to the distance at scene during wiring, and cooperate that joint and optical fiber cold connector are installed in succession fast, site operation does not need to melt fine, and engineering construction efficient is provided greatly.Common covered wire cable aspect elasticity, bending property, lateral pressure resistant performance, tensile property, ageing resistance often can not satisfy the construction environment that becomes increasingly complex.Pipeline projection optical cable is by in the particular design of configuration aspects, effectively improved elastic performance, lateral pressure resistant, mechanical property such as counter-bending; Protection against the tide and ageing resistance have effectively been improved.Pipeline projection optical cable can guarantee in the installation process not frangibility of optical fiber.In with the optical cable bending, only need optical cable be decontroled in bent position, optical cable will be got back to original position automatically, can not cause distortion or stay any marking on cable jacket.No matter be from which direction bending, optical cable is all very pliable and tough, makes the bending radius that optical fiber can be very little install or twine.Trampling, extruding, bending, knotting can not influence the loss of optical cable.

Summary of the invention

The utility model provide a kind of solve existing covered wire cable aspect elasticity, bending property, lateral pressure resistant performance, tensile property, ageing resistance satisfy the pipeline projection optical cable of the construction environment that becomes increasingly complex.

The utility model is achieved by the following technical solution: a kind of pipeline projection optical cable, comprise wiring covered wire cable cable core, waterstop, sheath, and its major technique feature is

A. cable core is 8 font suspension type covered wire cable cable cores, and optical fiber is positioned at 8 shaped sections centers;

B. two steel wires are placed in parallel in 8 font suspension type covered wire cables, 8 shaped sections, two circular central positions, tighten with the twice yarn, and the outside is again with the vertical bag of waterstop;

C. pipeline projection optical cable uses wrinkle aluminum plastic composite belt longitudinal bag to extrude the round section oversheath of black polyethylene PE or low smoke and zero halogen plastics LSZH material again;

As preferably:

A.8 the decay of font suspension type covered wire cable inner fiber 1550nm window is smaller or equal to 0.220dB/km;

B. vertical bag waterstop thickness is 0.20mm-0.30mm; Being preferably vertical bag waterstop thickness is 0.25mm;

C. two parallel steel wires, its external diameter is φ 0.8mm.

The utility model cable core adopts resistant to bending G.657 optical fiber with the covered wire cable inner fiber; Steel wire is placed in parallel in 8 font suspension type covered wire cables, 8 shaped sections, two circular central positions again with the vertical wrap molding of waterstop, has improved the rounding property and the tensile strength of cable core; Use wrinkle aluminum plastic composite belt longitudinal bag extrudes the round section oversheath of black polyethylene PE or low smoke and zero halogen plastics LSZH material again, has improved lateral pressure resistant performance, the fire resistance of pipeline projection optical cable.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment:

1: non-metal reinforcement member; The 2:LSZH sheath; The 3:UV curing optical fiber; 4: metal reinforcement; 5: prick yarn and waterstop; 6: aluminium-plastic tape; 7:PE or LSZH sheath;

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail:

As shown in Figure 1, cable core adopts 1/2.0 * 3.0/ Φ, 0.4 * 2+ Φ 0.8 * 2, structure, the i.e. covered wire cable of forming by non-metal reinforcement member 1, LSZH sheath 2, UV curing optical fiber 3, covered wire cable size 2.0 * 3.0, the outside is circular-arc, and the decay of 8 font suspension type covered wire cable inner fiber 1550nm windows equals 0.220dB/km; Two steel wire 8-1,8-2 are placed in parallel in 8 font suspension type covered wire cables, 8 shaped sections, two circular central positions, diameter is 0.8mm, with the vertical wrap molding of waterstop, waterstop thickness is 0.25mm again, and such particular design has improved the rounding property and the tensile strength of cable core; Sheath adopts the wrinkle aluminium-plastic tape and extrudes PE or the LSZH that thickness is 1.0mm, has guaranteed pipeline projection optical cable under regulation external force, and the cable core of pipeline projection optical cable is injury-free, has further improved lateral pressure resistant performance, the fire resistance of pipeline projection optical cable.

Claims (3)

1. a pipeline projection optical cable comprises wiring covered wire cable cable core, waterstop, sheath, it is characterized in that:

A. cable core is 8 font suspension type covered wire cable cable cores, and optical fiber is positioned at 8 shaped sections centers;

B. two steel wires are placed in parallel in 8 font suspension type covered wire cables, 8 shaped sections, two circular central positions, tighten with the twice yarn, and the outside is again with the vertical bag of waterstop;

C. pipeline projection optical cable uses wrinkle aluminum plastic composite belt longitudinal bag to extrude the round section oversheath of black polyethylene PE or low smoke and zero halogen plastics LSZH material again.

2. a kind of pipeline projection optical cable as claimed in claim 1 is characterized in that:

A.8 the decay of font suspension type covered wire cable inner fiber 1550nm window is smaller or equal to 0.220dB/km;

B. vertical bag waterstop thickness is 0.20mm-0.30mm;

C. two parallel steel wires, its external diameter is φ 0.8mm.

3. a kind of pipeline projection optical cable as claimed in claim 2 is characterized in that vertical bag waterstop thickness is 0.25mm.