CN202084337U - Optical Fiber Composite Low Voltage Cable - Google Patents

Abstract

The utility model discloses a composite optical fiber low-voltage cable, belongs to the field of a composite optical fiber low-voltage cable, and is mainly applied to the fields of communication, electric power, information, network or the like. The utility model aims to provide the cable which enables electric power signals, telecommunication signals and other signals to be transmitted simultaneously. The technical scheme of the utility model is that conductors(1) coated with insulating layers (2) form insulating cores (3); the plurality of insulating cores (3), an optical communication transmission unit (5) and a radial water-blocking filling (4) are intertwined to form cable cores (6); and an inner lining layer (7) and an outer sheath (8) are arranged outside the cable cores in order. With the above technical scheme, the cable of the utility model enables telecommunication network signals, broadcast and television network signals, internet signals and other signals to be transmitted while enabling electric power to be transmitted.

Description

Optical Fiber Composite Low Voltage Cable

technical field

The utility model relates to a cable, in particular to an optical fiber composite low-voltage cable, which is mainly used in the fields of communication, electric power, information, network and the like.

Background technique

The existing 0.6/1kV low-voltage power cables only have a single power transmission function. Such as: Chinese patent CN101236801A discloses a fire-resistant low-voltage electric power. It can no longer transmit electricity and transmit signals such as telecommunications at the same time.

Optical cables have a good function of transmitting signals such as telecommunications. For example: Chinese patent CN201075139Y discloses a fully dry layer twisted optical cable. It can only transmit signals such as telecommunications, and cannot transmit electricity at the same time.

"Multi-network integration" is the goal of the development of the national smart grid, which requires effective integration of power transmission networks, telecommunication networks, radio and television networks, and the Internet. For this reason, a power cable capable of transmitting both power and signals is required.

Contents of the invention

The purpose of the utility model is to provide an optical fiber composite low-voltage cable capable of simultaneously transmitting signals such as electric power and telecommunication, aiming at the deficiencies of the prior art.

In order to achieve the above-mentioned technical purpose, the utility model adopts the following technical scheme: an optical fiber composite low-voltage cable, the conductor covered with the insulating layer constitutes an insulated core, a plurality of insulated cores, at least one optical communication transmission unit and a radial resistance The water is filled and twisted together to form a cable core, the cable core is wrapped with an inner lining, and the inner lining is extruded to wrap an outer sheath. One, two, three or more optical communication transmission units are used.

Further, multiple insulated wire cores are four insulated wire cores.

Further, the optical communication transmission unit is an optical cable with built-in optical fibers, and the optical cable adopts a fully dry layer twisted structure, a fully dry central beam tube structure, an ointment filled layer twisted structure or an ointment filled central beam tube structure.

Further, the radial water-blocking filling is PP rope made of polypropylene material.

After adopting the above technical scheme, the utility model has the following beneficial effects:

(1) Multiple insulated wire cores, at least one optical communication transmission unit and radial water-blocking filling are twisted together to form a cable core, so that the cable can transmit signals such as telecommunication networks, radio and television networks, and the Internet while transmitting power, realizing Multi-network combination. Meet the needs of smart grid informatization, automation and interaction.

(2) Multiple insulated wire cores are used to improve the power transmission effect and facilitate processing.

(3) The optical communication transmission unit is an optical cable with built-in optical fibers, which can be selected from any of the fully dry layer twisted structure, the fully dry central beam tube structure, the ointment filled layer twisted structure or the ointment filled central beam tube structure a structure. On the one hand, it improves the signal transmission effect, and on the other hand, in the case of partial damage to the outer sheath of the cable, it adapts to different usage conditions and can partially maintain signal transmission.

(4) The PP rope of polypropylene material is used as the radial water blocking filling to improve the water blocking effect.

Description of drawings

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

In the figure: 1. Conductor, 2. Insulation layer, 3. Insulated wire core, 4. Radial water-blocking filling, 5. Optical communication transmission unit, 6. Cable core, 7. Inner lining, 8. Outer sheath.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Example

As shown in Figure 1, an optical fiber composite low-voltage cable, the conductor 1 covered with the insulating layer 2 forms an insulated core 3, four insulated cores 3, an optical communication transmission unit 5 and a radial water-blocking filling 4 together Twisted to form a cable core 6, the cable core 6 is wrapped with an inner liner 7, and the inner liner 7 is evenly and tightly extruded with an outer sheath 8.

in:

a. Radial water blocking filling 4 is preferably made of PP rope made of polypropylene material;

b. The optical communication transmission unit 5 is an optical cable with a built-in optical fiber. The optical cable is an all-dry layer twisted structure, an all-dry central beam tube structure, an ointment-filled layer twisted structure or an ointment-filled central beam tube structure. any kind of structure.

Of course, two, three, four or more optical communication transmission units 5 can also be used. Four insulated wire cores 3, multiple optical communication transmission units 5 and radial water-blocking filling 4 are twisted together to form a cable core 6, the cable core 6 is wrapped with an inner lining 7, and the inner lining 7 is evenly and tightly squeezed outside sheath8. Using multiple optical communication transmission units 5 can improve the signal transmission capability.

The optical fiber composite low-voltage cable adopting the above structure can simultaneously transmit signals such as electric power and telecommunication. Among them, the PP rope made of polypropylene material improves the water resistance of the optical fiber composite low-voltage cable; optional fully dry layer twisted structure, fully dry central beam tube structure, ointment filled layer twisted structure or ointment filled central beam tube structure Either type of optical cable expands the selection range of optical fiber composite low-voltage cables to meet the needs of different usage situations.

The utility model is not limited to the above-mentioned embodiments, and all technical solutions formed by equivalent or equivalent replacements belong to the protection scope of the utility model.

Claims (4)

1. Optical Fiber Composite low-voltage cable, the conductor (1) of its coated insulation layer (2) constitutes insulated wire cores (3), it is characterized in that: thoroughly do away with edge core (3), at least one optical communication transmission unit (5) and the stranded together formation cable core of filling (4) (6) that radially blocks water, cable core is provided with inner covering (7), oversheath (8) outward successively more.

2. Optical Fiber Composite low-voltage cable according to claim 1 is characterized in that: the described edge cores that thoroughly do away with are four eradication edge cores (3) more.

3. Optical Fiber Composite low-voltage cable according to claim 1 and 2 is characterized in that: described optical communication transmission unit (5) is built-in fiber and adopts dry type layer the tangle cable line of structure or ointment filled type central beam tubular construction of structure, dry type central beam tubular construction, ointment filled type layer that tangles.

4. Optical Fiber Composite low-voltage cable according to claim 3 is characterized in that: the described filling (4) that radially blocks water is to adopt the PP of polypropylene material rope.

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