CN2935396Y

CN2935396Y - Optical cable

Info

Publication number: CN2935396Y
Application number: CN 200620025080
Authority: CN
Inventors: 苑宝义
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-27
Filing date: 2006-07-27
Publication date: 2007-08-15
Anticipated expiration: 2016-07-27

Abstract

The optical cable of the utility model is also known as an electric optical cable, which is a transmission medium cable that can carry out one-line transmission of electric energy and optical signal. The metal conductive cable core is arranged in parallel with optical fiber of optic cable, the optical fiber can be arranged in and out of a reinforced element, the metal conductive cable core and optical fiber are coated with an insulating protective layer respectively, and integrated as a whole through the external sheathing layer, the cross section of the optical cable remains dumbbell-shape or flat, round, the reinforced element of the optical fiber can be plastic skeleton or steel wire or metal or plastic packet tape. The utility model optical cable can ensure the requirements of electric energy transmission and optic fiber network communication, which is consentient in installation both indoor and outdoor and reduces construction cost significantly.

Description

Optical cable

Technical field

The utility model relates to light, electrical transmission media, i.e. the cable of the optical cable of transmitting optical signal and electric energy transmitting.

Background technology

In electric power system, transmission or distribution electric energy will use the power cable of different voltage levels.Power cable is compared with aerial bare line, have be subjected to extraneous climatic environment disturb little, power supply reliability is high; Electric capacity is bigger; Help improving the power factor of electric power system; Insulating barrier and sheath are arranged, and outer jacket, can bear mechanical external force or pulling force is made power, safety is difficult for advantages such as impaired, but only can electric energy transmitting.And,, must make the optical cable of structure relative complex in order to guarantee under various laid condition and various environment are medium-term and long-term uses as the optical fiber of optical signal transmission medium.In society now, usually need to move towards to go the same way electric energy transmitting and light signal simultaneously, together, satisfying the needs of power and message transmission and measurement, thereby need long distance and at indoor and outdoor power cable laying and optical cable respectively, this has just increased engineering difficulty and construction investment greatly.

The utility model content

The utility model be exactly to provide a kind of can electric energy transmitting again can be with the optical cable or the electrical-optical cable that move towards transmitting optical signal.The utility model optical cable partly is made of the cable part of electric energy transmitting and the optical cable of transmitting optical signal.Cable metallic conduction core partly is parallel with optical cable optical fiber partly.The vertical reinforcement that places of the optical fiber of the optical cable that outdoor long distance is set up is interior or outer.Metallic conduction core and optical fiber is coated insulation protective layer separately outward, and the restrictive coating outside it is connected as a single entity.The reinforcement of optical fiber can be plastic skeleton or steel wire and metal longitudinal binding band.It is circular or oblate that the optical cable cross section is dumb-bell shape.The electric wire of indoor optical cable is the metal cords of overcoat plastic tube, and optical cable is the single or multifiber of overcoat plastic tube or plastic film, therebetween or fibrefill arranged.Electric wire and optical fiber overcoat plastic bushing can have the colo(u)r streak that is different from true qualities on the plastic bushing, to be different from common wiring.

The light unit of the optical cable that set up the open air is with one or more optical fiber, or fiber bundle is made.The transmission quality that its structure directly influences light signal is the cable laying operation requirement, must meet the optics of optical fiber, the requirement that machinery is environmental characteristics.Existing optical cable generally is made up of cable core, sheath and strengthening core.Therefore, need have higher structural design equally, to guarantee transmission requirement and quality as the component part of optical cable.But can utilize cable architectural characteristic partly, both are complemented each other.The electric unit part of the utility model optical cable can be guaranteed normal electrical transmission, can provide mechanical support for optical cable again, bear optical cable and partly install and use suffered external force, overcome the fragility of optical fiber and the characteristic that microbending loss increases, guarantee the stability and the reliability of optical fiber.And cable becomes dumb-bell shape or oblate structure can make cable and optical cable partly be easy to be divided into two in the optical cable with optical cable parallel longitudinal, cross section, and the relatively independent structure of each self-sustaining, the introducing when being convenient to install, draws and joint.

Description of drawings

Fig. 1 is the optical cable structural representation of one of the outdoor optical cable embodiment of the utility model single-core cable and slotted core cable combination.

Fig. 2 is the built on stilts optical cable structural representation of self-bearing type of the utility model embodiment twin core cable and slotted core cable combination.

Fig. 3 is the optical cable schematic diagram of the utility model embodiment three-core cable and the combination of beam tube type structure optical cable.

Fig. 4 is the optical cable schematic diagram of the utility model embodiment quad and the combination of six core tight sleeve layer stranded cables.

Fig. 5 is the utility model room light cross-section of cable schematic diagram.

Fig. 6 is the utility model room light cable jacket schematic diagram.

Fig. 7 is the indoor flat optical cable of a utility model schematic diagram.

Fig. 8 is the utility model direct burial optical cable schematic diagram.

Among the figure, 1 crosslinked polyethylene or polyvinyl chloride insulating barrier, 2 metallic conduction cores, 3 weather-proof material or polyvinyl chloride oversheath, the vertical bag of 4 metals or plastics, 5 optical fiber, 6 reinforcements, 7 plastic skeletons, 8 factice for filling, 9 steel-tape armourings, 10 neutral cores, 11 highstrenghtpiston's optical fiber bundle tubes, 12 plastic tubes or plastic film, 14 fibrefills, 15 plastic bushings, 16 colo(u)r streaks.

Embodiment

The utility model optical cable has numerous embodiments, shown in the accompanying drawing only for wherein several.

Shown in accompanying drawing 1-4, the utility model optical cable is made of the cable of electric energy transmitting and the optical cable of transmitting optical signal.The metallic conduction core 2 of cable is parallel with the optical fiber 5 of optical cable, and optical fiber 5 vertical reinforcement 6 interior or outer, the metallic conduction cores 2 and optical fiber 5 outer coated insulation protective layers separately that place are connected as a single entity through its outer jacket 3, and the optical cable cross section is dumb-bell shape.The reinforcement of optical fiber 5 can be plastic skeleton 7 or steel wire 6 and metal or the vertical band 4 of plastics.The plastic skeleton 7 of Fig. 2, its material is generally low density polyethylene (LDPE).7 pairs of optical fiber 5 of plastic skeleton have the excellent protection performance, and side pressure strength is good, and to construction, especially pipeline lays favourable.The optical fiber 5 of primary coating can directly be positioned in the internal frame groove of skeleton 7, saves the secondary coated process of loose sleeve pipe, helps optical fiber and connects.The optical fiber duct of skeleton 7 can be selected geometry and suitable joint tool in the optical fiber manufacture process, make excess fiber length be fit to the needs of fiber stress and hot expansibility.Optical fiber 5 among Fig. 3 places highstrenghtpiston's optical fiber bundle tubes 11, disperses reinforcement steel wire 6 to be configured in around the sleeve pipe, and intensity is good, and is withstand voltage especially, can prevent the influence of adverse circumstances and the rough operation in family that may occur, and can improve the stability and the reliability of Network Transmission.And this beam tube type structure, owing to be directly the curing optical fiber of primary coating to be positioned in the beam tube 11, so the fiber capacity of optical cable is flexible, two cores, four-core at least are at most more than four, 50 even hundred cores.External sheath layer 3 can adopt polyvinyl chloride, polyethylene or aluminum-polyethylene, or the LIP oversheath that aluminium strip and polyethylene are formed adds wire armoring etc., makes outer jacket have withstand voltage, moistureproof, good temp characteristic, in light weight, chemically-resistant etch and characteristics such as fire-retardant.But the pipeline laying of the utility model optical cable, but also direct-burried (see figure 8), built on stilts reaching are laid under water.

Shown in Fig. 5-7, the utility model optical cable is made up of the electric wire of electric energy transmitting and the optical cable of transmitting optical signal.Electric wire is the metal conductive wire 2 of overcoat insulating barrier 1, and optical cable is the single or multifiber 5 of overcoat highstrenghtpiston optical fiber bundle tubes 11, and fibrefill 14 is arranged between electric wire and the optical cable.Overcoat plastic bushing 15, the electric wire in the optical cable has the 1-4 root, and optical fiber 5 is one or how right.Have any different on the overcoat plastic bushing 15 in 1 or 2 colo(u)r streaks 16 of true qualities, as 2 white lines 16 are arranged on the blue look plastic bushing 15.

Claims

1, optical cable, partly constitute by the cable of electric energy transmitting and the optical cable two of transmitting optical signal, it is characterized in that said cable metallic conduction core (2) partly is parallel with said optical cable optical fiber (5) partly, cross section is dumb-bell shape or circular or flat, the overcoat plastic bushing has filler or reinforcement therebetween.

2, optical cable according to claim 1 is characterized in that the vertical reinforcement that places of described optical fiber (5) is interior or outer, metallic conduction core (2) and optical fiber (5) outer coated insulation, protective layer separately, and the restrictive coating outside it (3) is connected as a single entity.

3, optical cable according to claim 1 is characterized in that the reinforcement of said optical fiber (5) can be plastic skeleton (7) or steel wire (6) or metal or the vertical band (4) of plastics.

4, optical cable according to claim 1 is characterized in that the surperficial symmetrical both sides of said oversheath (3) or plastic bushing (15) are printed on the colo(u)r streak (16) that is different from true qualities.