CN201732631U - Photoelectricity composite cable - Google Patents

Abstract

A photoelectric composite cable is composed of an outer layer structure, an inner wire and an optical unit. The utility model has the following advantages: providing multiple transmission technologies, high adaptability, strong expandability, and wide application range; integrating optical fiber and power transmission and distribution cables, avoiding secondary wiring, reducing construction costs, network Low construction cost; provide huge broadband access; can measure the stress-strain of the cable online.

Description

Photoelectric composite cable

technical field

The utility model relates to the field of wires and cables, in particular to a photoelectric composite cable for "four-network integration" that realizes a smart grid, a telecommunication network, a radio and television network, and the Internet.

Background technique

Power fiber-to-the-home can not only meet the needs of the smart grid's own development, but also fully support the integration of the three networks. Power optical fiber contains multi-core optical fiber. In addition to the use of power grid enterprises, it can also be used to build a completely open public network platform to provide access services for telecommunications, Internet, radio and television media and other enterprises, which can greatly reduce the cost of triple play. Investment, for households that have not yet achieved power access or to implement power optical fiber in new residential buildings, considering factors such as equipment, staff and materials, power fiber to the home can greatly reduce investment compared with laying power cables and optical cables separately. save costs. It can improve the comprehensive operation efficiency of the network. According to the promotion of broadband network construction by the Ministry of Industry and Information Technology and other seven ministries and commissions, by 2011, the average access capacity of optical fiber broadband for urban users will reach 8M. a lot of space. In the power optical fiber, the transmission of optical fiber signals in the optical cable does not interfere with each other, and the optical fiber for transmitting power grid information is completely physically isolated from the optical fiber for the transmission network, which can effectively prevent attacks on production control from the Internet and power grid, and will not cause security risks .

Utility model content

The purpose of the utility model is to provide a photoelectric composite cable which can measure the stress and strain of the cable on-line. A photoelectric composite cable can transmit both electric energy and information.

In order to achieve the above purpose, the following technical solutions are adopted: a photoelectric composite cable, which is composed of an outer layer structure, an inner wire and an optical unit.

The outer layer structure from outside to inside is PVC outer sheath, steel tape armor layer, PVC inner lining layer and non-woven fabric wrapping tape, the inside is optical unit and copper conductor wrapped with PVC insulating material, and the filling material is PP filled rope.

The optical unit is a layered optical unit, the outer structure is a sheath and a water blocking belt from the outside to the inside, and a number of loose tubes are arranged inside, and an optical fiber is arranged in the loose tube. Fiber paste is filled between the loose tubes, and reinforcements are provided between the loose tubes.

The optical unit is a beam tube optical unit, which is composed of a sheath, a strengthening member, and a loose tube from outside to inside. Several optical fibers are arranged in the loose tube, and fiber paste is filled between the optical fiber and the loose tube.

The optical unit is a butterfly optical unit, which is composed of an optical fiber and a strengthening member embedded in the sheath.

The utility model has the following advantages: providing multiple transmission technologies, high adaptability, strong expandability, and wide application range; integrating optical fiber and power transmission and distribution cables, avoiding secondary wiring, reducing construction costs, network Low construction cost; provide huge broadband access; can measure the stress-strain of the cable online.

Description of drawings

Fig. 1 is a structural schematic diagram of the photoelectric composite cable of the present invention.

Fig. 2 is a structural schematic diagram of the layer-twisted optical unit of the present invention.

Fig. 3 is a structural schematic diagram of the beam tube light unit of the present invention.

Fig. 4 is a structural schematic diagram of the butterfly optical unit of the present invention.

Detailed ways

As shown in Figure 1, a photoelectric composite cable consists of PVC outer sheath 1, steel tape armor layer 2, PVC inner lining layer 3 and non-woven fabric wrapping tape 4 from outside to inside, and the inside is optical unit 5 and Four copper conductors 7 wrapped with PVC insulating material 6, and the filling material is PP filling rope 8; the optical unit is a layer twisted optical unit, a central beam tube optical unit or a dish-shaped optical unit.

As shown in Figure 2, the optical unit is a layer-twisted optical unit. The outer structure is a sheath 9 and a longitudinal water blocking belt 10 from outside to inside. There are four loose tubes 11 inside, and the loose tube 11 is Three optical fibers 12 are arranged inside, and water-blocking fiber paste 13 is filled between the optical fibers 12 and the loose tube 11 , and a reinforcing member 14 is provided between the loose tubes 11 .

As shown in Figure 3, the optical unit is a beam tube optical unit, which is composed of a sheath 9', a strengthening member 14', and a loose tube 11' from outside to inside, and six optical fibers are arranged inside the loose tube 11' 12', filling the water-blocking fiber paste 13' between the optical fiber 12' and the loose tube 11'.

As shown in FIG. 4 , the optical unit is a butterfly optical unit, which is composed of an optical fiber 12 ″ embedded in a sheath 9 ″ and a strengthening member 14 ″.

The number of optical fiber cores in the optical unit of the photoelectric composite cable is selected according to the number of local users, and one of the optical fibers can be used to measure the stress-strain of the cable to achieve online measurement of the stress and strain of the cable. The reinforcement can be non-metal material FRP or metal material, the casing material is PBT loose casing material, and the loose casing is filled with water-blocking fiber paste.

Claims (6)

1. an optoelectronic composite cable is characterized in that: be made up of extexine structure and inner lead and light unit.

2. optoelectronic composite cable according to claim 1, it is characterized in that: described extexine structure is followed successively by PVC oversheath, steel-tape armouring layer, PVC inner covering and nonwoven fabrics band from outside to inside, inner is light unit and the copper conductor that is wrapped with the PVC insulating material, and packing material is the PP gasket for packing.

3. optoelectronic composite cable according to claim 2, it is characterized in that: described smooth unit is layer-twisted type light unit, layer structure is followed successively by sheath, waterstop from outside to inside, inside is provided with some loose sleeve pipes, be provided with optical fiber in the pine sleeve pipe, between optical fiber and loose sleeve pipe, fill fine cream, between loose sleeve pipe, be provided with reinforcement.

4. optoelectronic composite cable according to claim 2 is characterized in that: described smooth unit is beam tube type light unit, is made up of sheath, reinforcement, loose sleeve pipe successively from outside to inside, is provided with some optical fiber in the loose sleeve pipe, fills fine cream between optical fiber and loose sleeve pipe.

5. optoelectronic composite cable according to claim 2 is characterized in that: described smooth unit is butterfly light unit, is embedded in optical fiber and reinforcement is formed by sheath.

6. according to any described optoelectronic composite cable in claim 3 or 4 or 5, it is characterized in that: described reinforcement is nonmetallic materials FRP or metal material.

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