CN201926788U

CN201926788U - Reinforced indoor wiring cable

Info

Publication number: CN201926788U
Application number: CN2010203013316U
Authority: CN
Inventors: 张险峰; 王旭
Original assignee: Henan Communication Cable Co Ltd
Current assignee: Henan Communication Cable Co Ltd
Priority date: 2010-01-23
Filing date: 2010-01-23
Publication date: 2011-08-10
Anticipated expiration: 2020-01-23

Abstract

The utility model relates to an enhanced indoor wiring cable. The enhanced indoor wiring cable comprises an outer sheath, and reinforcing elements and an optical fiber, which are arranged inside the outer sheath, wherein the reinforcing elements are arranged in parallel on the two sides of the optical fiber, the optical fiber is a single-mode optical fiber, and a polyurethane elastomer sheath or a silicon resin sheath is arranged outside the optical fiber. In the enhanced indoor wiring cable, the elastomer sheath is additionally arranged outside the optical fiber, so as to mechanically protect the optical fiber, improve the mechanical performance and the bending resistance of the optical cable and improve the adaptability of the optical cable in the complex indoor wiring environment.

Description

Reinforced service wire optical cable

Technical field

The utility model relates to a kind of reinforced service wire optical cable.

Background technology

Continuous development along with the optical communication cause, optical communication technique is perfect day by day, optical communication node constantly sinks in the communication network, Fiber to the home (FTTH), fiber to the desk (FTTD) will be following optical communication technique and the inexorable trend of fiber optic network construction development, the multimedia transmission such as unification of three nets of while LAN (Local Area Network) and voice network, data network, cable television network, and the development of comprehensive wiring, machine room, equipment, all optical network exchange, promoted the FTTH Construction of Access.The remarkable technical characterstic of FTTH is the bandwidth that not only provides bigger, and has strengthened the transparency of network to data form, speed, wavelength and agreement, has relaxed the requirement to environmental baseline and power supply etc., has simplified and has safeguarded and installation.

Along with the carrying out and popularize of China FTTH access network construction, the FTTH Access Network will increase with the optical cable demand thereupon greatly.The service wire optical cable is just simply changed the optical fiber kind in the market, and the enhancement Layer of mechanical protection is not provided for optical fiber on the cable configuration, and cable machinery and anti-bending strength are relatively poor, incompatible comparatively complicated house wiring environment.

The utility model content

It is stronger that the purpose of this utility model provides a kind of counter-bending pliability, can adapt to the reinforced service wire optical cable of complicated wiring environment.

For achieving the above object, the utility model adopts following technical scheme: a kind of reinforced service wire optical cable, comprise oversheath and be arranged at this sheath interior reinforcing element and optical fiber, this reinforcing element is set in parallel in the both sides of described optical fiber, described optical fiber is single-mode fiber, and described single-mode fiber is provided with the reinforcement elastic body jacket outward.

Described reinforcement elastic body jacket is polyurethane body sheath or silicones sheath.

Beneficial effect: optical cable of the present utility model adds elastic body jacket outside optical fiber, and optical fiber is done further mechanical protection, further improves cable machinery and bending resistance, improves optical cable and puts the house wiring environment capacity that adapts to complexity.In addition, consider and have various complicated states when laying in floor gap or the corridor, (as when running into the vertical corner cabling in room, bending radius≤30mm), the bending property of traditional G.652D optical fiber can not satisfy condition, therefore single-mode optical fiber with insensitive bending loss 6.657 optical fiber of selecting novel Access Network to use.

For further improving the mechanical property and the counter-bending flexility of optical cable, strengthen elastic body jacket and select for use polyurethane body or silicones sheath as the mechanical damping layer.

Description of drawings

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

Embodiment

Be illustrated in figure 1 as reinforced service wire optical cable of the present utility model; in the design of this optical cable; at with tradition G.652D optical fiber dock and house wiring often needs crooked optical cable and the little situation of bending radius; take all factors into consideration factors such as the realization difficulty of manufacturing process and manufacturing cost; the final typical structure of confirming is as described below: outermost layer is the sheath 4 that the black halogen-free flame retardant polyolefine material is made; be provided with two core fibres 1 that wrapped up one deck reinforcement thermoplastic elastomer buffer protection layer sheath 2 in the sheath 4, each equidistant reinforcements 3 that be arranged in parallel of optical fiber 1 both sides.

Optical fiber attenuation is an important indicator of circuit transmission quality, is design of decision optical communication network and the signal principal element in the optical cable transmission range.Consider and have various complicated states when laying in floor gap or the corridor, (as when running into the vertical corner cabling in room, bending radius≤30mm), the bending property of traditional G.652D optical fiber can not satisfy above-mentioned condition, therefore single-mode optical fiber with insensitive bending loss 6.657 optical fiber of selecting novel Access Network to use.Be to guarantee the quality of networking, preferred mode field diameter and the more consistent G.657.A optical fiber 1 of index G.652.D.G.657.B mode field diameter scope is too wide in range at present, is difficult to control the requirement to the index that continues.

For further improving the mechanical property and the counter-bending flexility of optical cable, extrude or apply one deck polyurethane body (or silicones) sheath 2 flexibilities as the mechanical damping layer.

Reinforcement 3 adopts fiberglass reinforcement G-FRP or aramid fiber fortifying fibre K-FRP reinforcement materials, and optical cable softness, good bending property further improve the bending property of optical cable.

Optical cable of the present utility model increases one deck thermoplastic elastomer buffer protection layer to optical fiber; optical fiber is done further mechanical protection; further improve cable machinery and bending resistance; improve optical cable and adapt to complicated house wiring environment capacity; take into account with G.652D tradition causes during the continuing of optical fiber and dock decay and dispersion attenuation, reduce optical cable construction and lay risk, improve line quality; technology content and added value of products height, economic benefit and obvious social benefit.

Certainly, elastic body jacket 2 of the present utility model and reinforcement 3 also can other similar materials of selection function, and such conversion is all within protection domain of the present utility model.

Claims

1. reinforced service wire optical cable, comprise oversheath and be arranged at this sheath interior reinforcing element and optical fiber, this reinforcing element is set in parallel in the both sides of described optical fiber, it is characterized in that: described optical fiber is single-mode fiber, and described single-mode fiber is provided with the reinforcement elastic body jacket outward.

2. reinforced service wire optical cable according to claim 1 is characterized in that: described reinforcement elastic body jacket is polyurethane body sheath or silicones sheath.