CN210925577U

CN210925577U - Parallel fire-resistant optical fiber composite bunched cable

Info

Publication number: CN210925577U
Application number: CN201922162291.5U
Authority: CN
Inventors: 赵建锋; 陈涛; 王灿泽; 李鸿剑; 陶彩英; 沈栋; 王胜达
Original assignee: Shaoxing Electric Power Equipment Co ltd
Current assignee: Shaoxing Electric Power Equipment Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-07-03
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to a cable field, concretely relates to compound cable tied in a bundle of parallel fire-resistant optic fibre. The utility model relates to a parallel fire-resistant optical fiber composite bunched cable, which comprises optical fibers and four cables which are arranged in parallel, wherein the cables are all connected through connecting ribs, one cable is connected with the optical fibers through optical fiber connecting ribs, and the connecting ribs and the optical fiber connecting ribs are both provided with an oval strip-shaped opening; the cable comprises an insulating layer, wherein a fire-resistant mica tape is arranged on the inner layer of the insulating layer. The utility model provides a fire-resistant compound bunched cable of optic fibre.

Description

Parallel fire-resistant optical fiber composite bunched cable

Technical Field

The utility model relates to a cable field, concretely relates to compound cable tied in a bundle of parallel fire-resistant optic fibre.

Background

The power fiber to the home can meet the self-development requirement of the smart grid and can comprehensively support integration of three networks. The power fiber to the home can realize the co-construction and sharing of network infrastructure, greatly reduce the implementation cost of three-network integration, improve the comprehensive operation efficiency of the network, and has obvious advantages in the aspects of energy conservation and environmental protection. The power fiber-to-the-home technology realizes that the problem that the photoelectric composite cable enters the home only needs one-time construction and one channel, can replace the multiple construction of a plurality of circuits such as the traditional electric wire, network cable, telephone wire, cable television and the like, and greatly saves the cable resource and public safety. The cable laying can be completed simultaneously, the fiber-to-the-home can be completed, the power high-speed data network platform is constructed by matching with the EPON (passive optical network based on the Ethernet mode) technology, and the services such as data, voice, video and the like can be provided. Users can directly access the Internet through the power optical fiber, dial digital phones and watch high-definition televisions, support automatic coordination control on intelligent household appliances such as air conditioners, electric water heaters and electric cookers, and synchronously realize the integrated reading and comprehensive application of three meters of electric meters, water meters and gas meters.

The parallel bundling type optical fiber composite low-voltage cable is an optical fiber composite cable formed by compounding an optical unit on a parallel bundling overhead insulated cable in parallel, has the functions of a communication optical cable and a common parallel bundling type overhead insulated cable, integrates the functions of optical fiber communication and power transmission, can finish optical fiber home-entry while laying the cable, avoids secondary wiring, and effectively reduces the cost of construction, network construction and the like. With the comprehensive start of the power fiber-to-the-home pilot engineering construction, the parallel-bundled fiber composite low-voltage cable is also paid more attention. An insulation layer is prepared outside a cable core wire and an optical unit by adopting an extrusion insulation method to serve as a sheath (namely an insulation sheath) outside the parallel cluster type optical fiber composite low-voltage overhead insulated cable.

The existing parallel optical fiber composite bunched cable has poor fire resistance.

Disclosure of Invention

For solving the deficiencies of the prior art, the utility model discloses hope to provide a compound bunched cable of parallel fire-resistant optic fibre, concrete scheme is as follows: a parallel fire-resistant optical fiber composite bunched cable comprises optical fibers and four cables which are arranged in parallel, wherein the cables are connected through connecting ribs, one cable is connected with the optical fibers through the optical fiber connecting ribs, and the connecting ribs and the optical fiber connecting ribs are provided with oval strip-shaped openings; the cable comprises an insulating layer, wherein a fire-resistant mica tape is arranged on the inner layer of the insulating layer.

The fireproof mica tape is characterized in that a plurality of conductive units are arranged on the inner side of the fireproof mica tape, each conductive unit comprises a central conductor bundle, and a plurality of conductor bundles are uniformly distributed on the outer side of each central conductor bundle. Prior art is a conductor bundle, the utility model discloses set up a plurality of electrically conductive units, electrically conductive unit sets up the toughness that a plurality of conductor bundles can strengthen the cable again, is convenient for buckle, difficult fracture.

The inner side of the fire-resistant mica tape is provided with 7 conductive units. The conductive units are ensured to be densely arranged, and the relative displacement is prevented.

And 6 conductor bundles are uniformly distributed on the outer side of the central conductor bundle. The conductor bundles are ensured to be densely arranged, and the relative displacement is prevented.

The optical fiber comprises an inflaming retarding polyolefin outer sleeve, a central reinforcing core is arranged in the inflaming retarding polyolefin outer sleeve, a plurality of optical fiber conducting units are uniformly distributed on the outer side of the central reinforcing core, each optical fiber conducting unit comprises a central fiber core, and a plurality of fiber cores are uniformly distributed on the outer side of the central fiber core. The prior art is a fiber core, the utility model is provided with a plurality of optical fiber conduction units, and the optical fiber conduction units are provided with a plurality of fiber cores which can enhance the toughness of the cable, are convenient to bend and are not easy to break; the flame-retardant polyolefin jacket can also play a role in fire resistance.

And 6 optical fiber conducting units are uniformly distributed on the outer side of the central reinforced core. The optical fiber conducting units are ensured to be densely arranged, and the relative displacement is prevented.

The optical fiber conducting unit comprises a central fiber core, and 5 fiber cores are uniformly distributed on the outer side of the central fiber core. The dense arrangement of the fiber cores is ensured, and the relative displacement is prevented.

The utility model relates to a parallel fire-resistant optical fiber composite bunched cable improves the fire resistance of the cable through the arrangement of the fire-resistant mica tape; simultaneously the utility model discloses a splice bar and optic fibre splice bar all are equipped with the rectangular trompil of an ellipse, can save material, when needs (for example when installation, maintenance) with cable or optic fibre separation, can conveniently separate simultaneously (tear can).

Drawings

Fig. 1 is a schematic structural view of a parallel fire-resistant optical fiber composite bunched cable of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

wherein the reference numbers: 1. a cable; 11. an insulating layer; 12. fire-resistant mica tapes; 13. a conductive unit; 131. a central conductor bundle; 132. a central conductor bundle; 2. an optical fiber; 21. a flame retardant polyolefin jacket; 22. an optical fiber conducting unit; 221. a central core; 222. a fiber core; 23. a central reinforcing core; 3. connecting ribs; 4. an optical fiber connecting rib; 5. an oval-shaped elongated opening.

Detailed Description

This is further illustrated below in connection with FIGS. 1-2:

a parallel fire-resistant optical fiber composite bunched cable comprises optical fibers 2 and four cables 1 which are arranged in parallel, wherein the cables 1 are connected through connecting ribs 3, one cable 1 is connected with the optical fibers 2 through optical fiber connecting ribs 4, and the connecting ribs 3 and the optical fiber connecting ribs 4 are provided with oval strip-shaped openings 5; the cable 1 comprises an insulating layer 11, and a fire-resistant mica tape 12 is arranged on the inner layer of the insulating layer 11. The inner side of the fire-resistant mica tape 12 is provided with a plurality of conductive units 13, each conductive unit 13 comprises a central conductor bundle 131, and a plurality of conductor bundles 132 are uniformly distributed on the outer side of the central conductor bundle 131. Prior art is a conductor bundle 132, the utility model discloses set up a plurality of electrically conductive unit 13, electrically conductive unit 13 sets up the toughness that a plurality of conductor bundles 132 can strengthen the cable again, is convenient for buckle, difficult fracture. The fire resistant mica tape 12 is provided with 7 conductive units 13 inside. The conductive units 13 are ensured to be densely arranged, and the relative displacement is prevented. The outer side of the central conductor bundle 131 is uniformly distributed with 6 conductor bundles 132. The conductor bundles 132 are ensured to be densely arranged, and relative displacement is prevented.

The optical fiber 2 comprises an inflaming retarding polyolefin outer sleeve 21, a central reinforced core 23 is arranged in the inflaming retarding polyolefin outer sleeve 21, a plurality of optical fiber conducting units 22 are uniformly distributed on the outer side of the central reinforced core 23, each optical fiber conducting unit 22 comprises a central fiber core 221, and a plurality of fiber cores 222 are uniformly distributed on the outer side of the central fiber core 221. The prior art is a fiber core 222, the utility model is provided with a plurality of optical fiber conduction units 22, and the optical fiber conduction units 22 are provided with a plurality of fiber cores 222 to enhance the toughness of the cable, so that the cable is convenient to bend and is not easy to break; the flame retardant polyolefin jacket 21 also serves as a flame retardant. And 6 optical fiber conducting units 22 are uniformly distributed outside the central reinforced core 23. The optical fiber conducting units 22 are ensured to be arranged densely, and relative displacement is prevented. The optical fiber conducting unit 22 includes a

central core

221, and 5 cores 222 are uniformly distributed outside the central core 221. The dense arrangement of the cores 222 is ensured, and the relative displacement is prevented.

The utility model relates to a parallel fire-resistant optical fiber composite bunched cable improves the fire resistance of the cable 1 through the arrangement of the fire-resistant mica tape 12; simultaneously the utility model discloses a splice bar 3 and optical fiber splice bar 4 all are equipped with the rectangular trompil of an ellipse, can save material, when needs are separated cable 1 or optic fibre 2 (for example when installing, maintaining), can conveniently separate (tear can) simultaneously.

The above-mentioned embodiment is only used for explaining the utility model concept, and not to the limit of the utility model protection, and all utilize this concept to be right the utility model discloses carry out insubstantial change, all shall fall into the scope of protection of the utility model.

Claims

1. The utility model provides a compound cable tied in a bundle of fire-resistant optic fibre of parallel, includes parallel arrangement's optic fibre and four its characterized in that of cable: the cables are connected through connecting ribs, one cable is connected with the optical fiber through the optical fiber connecting rib, and the connecting rib and the optical fiber connecting rib are provided with an oval long-strip opening; the cable comprises an insulating layer, wherein a fire-resistant mica tape is arranged on the inner layer of the insulating layer.

2. The parallel fire-resistant optical fiber composite bunched cable of claim 1, wherein: the fireproof mica tape is characterized in that a plurality of conductive units are arranged on the inner side of the fireproof mica tape, each conductive unit comprises a central conductor bundle, and a plurality of conductor bundles are uniformly distributed on the outer side of each central conductor bundle.

3. The parallel fire-resistant optical fiber composite bunched cable of claim 2, wherein: the inner side of the fire-resistant mica tape is provided with 7 conductive units.

4. The parallel fire-resistant optical fiber composite bunched cable of claim 2, wherein: and 6 conductor bundles are uniformly distributed on the outer side of the central conductor bundle.

5. The parallel fire-resistant optical fiber composite bunched cable of claim 1, wherein: the optical fiber comprises an inflaming retarding polyolefin outer sleeve, a central reinforcing core is arranged in the inflaming retarding polyolefin outer sleeve, a plurality of optical fiber conducting units are uniformly distributed on the outer side of the central reinforcing core, each optical fiber conducting unit comprises a central fiber core, and a plurality of fiber cores are uniformly distributed on the outer side of the central fiber core.

6. The parallel fire-resistant optical fiber composite bunched cable of claim 5, wherein: and 6 optical fiber conducting units are uniformly distributed on the outer side of the central reinforced core.

7. The parallel fire-resistant optical fiber composite bunched cable of claim 5, wherein: the optical fiber conducting unit comprises a central fiber core, and 5 fiber cores are uniformly distributed on the outer side of the central fiber core.