CN210837272U

CN210837272U - Novel steel-tape-armored copper-core polyvinyl chloride power cable

Info

Publication number: CN210837272U
Application number: CN201921488187.9U
Authority: CN
Inventors: 李楚恒
Original assignee: Zhaoqing Henghai Wire And Cable Co ltd
Current assignee: Zhaoqing Henghai Wire And Cable Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-06-23
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a novel polyvinyl chloride power cable with steel-tape armored copper core, which comprises an outer sheath and a conductor, wherein the inner wall of the outer sheath is provided with an armor layer, the inner wall of the armor layer is provided with an isolation sleeve, and the conductor adopts a compact round shape, so as to reduce the space of a wire, improve the filling coefficient, effectively reduce the outer diameter of the cable, save the material of the cable sheath and reduce the product cost; besides the good electrical performance of the polyvinyl chloride insulation, the cross-linked polyethylene insulation adopted by the insulation layer has small thermal deformation, higher heat resistance and aging resistance, and the working temperature can reach 90 ℃, so that the transmission capacity is larger; the density is lower, and the weight is lighter; the dielectric coefficient is small so as to reduce loss, and no or little dense smoke or harmful gas is generated during combustion; meanwhile, the cable insulation can be protected from being damaged through the armor layer and the outer sheath, and the requirements of various use conditions and environments are met.

Description

Novel steel-tape-armored copper-core polyvinyl chloride power cable

Technical Field

The utility model belongs to the technical field of power cable is relevant, concretely relates to novel steel band armor formula copper core polyvinyl chloride power cable has.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater; in the power line, the proportion of the cable is gradually increasing; power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables.

The existing power cable technology has the following problems: when the existing power cable is used, the conductor of the conductor is formed by rotating and winding, so that the gap of the conductor is increased, the outer diameter of the cable is increased, the material of a cable sheath is wasted, the product cost is improved, and in addition, the power cable does not have higher heat resistance and aging resistance, the energy loss is increased, and meanwhile, the insulation damage of the cable is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel steel band armor formula copper core polyvinyl chloride power cable has to improve in solving above-mentioned background art put forward product cost, increased the loss of energy and cause the insulating damage problem of cable easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel steel band armor formula copper core polyvinyl chloride power cable has, includes oversheath and conductor, oversheath inner wall position department is provided with the armor, armor inner wall position department is provided with the separation sleeve, separation sleeve inner wall position department is provided with around the band, be provided with the stopping around band inner wall position department, inside position department is provided with the insulating layer, and is three in the middle of inside position department in both sides and the place ahead about the stopping rear insulating layer inner wall position department is provided with the conductor.

Preferably, the outer sheath is packaged by using HI-90 sheath materials, and fixing glue is arranged on the inner wall of the outer sheath and is fixedly connected with the armor layer through the fixing glue.

Preferably, the armor layer is packaged by steel tape armor and is respectively and fixedly connected with the isolation sleeve and the outer sheath through fixing glue.

Preferably, the isolation sleeve is packaged by using HI-90 sheath materials, and is respectively and fixedly connected with the armor layer and the wrapping tape through fixing glue.

Preferably, the wrapping tape is made of non-woven fabrics for tight packaging, and a waterproof film is arranged between the wrapping tape and the filler.

Preferably, the filling material is made of polypropylene materials, and fixing circular holes are formed in the inner positions of the upper side and the lower side of the rear of the filling material and the inner position of the middle of the front of the filling material.

Preferably, the number of the insulating layers is three, the three insulating layers are made of cross-linked polyethylene insulating materials, the inner diameters and the outer diameters of the three insulating layers are equal, the thicknesses of the three insulating layers are equal, and the working temperatures of the three insulating layers can reach 90 ℃.

Preferably, the number of the conductors is three, the three conductors are manufactured by a method of pressing a circle, and the diameters of the three conductors are equal.

Compared with the prior art, the utility model provides a novel steel band armor formula copper core polyvinyl chloride power cable has possesses following beneficial effect:

1. the utility model discloses the conductor adopts and sticiss circularly, is the space in order to reduce the wire, improves the filling coefficient, reduces the cable external diameter effectively, practices thrift cable sheathing material, reduces product cost.

2. The cross-linked polyethylene insulation adopted by the insulating layer of the utility model keeps the polyvinyl chloride insulation to have better electrical performance, has small thermal deformation, higher heat resistance and aging resistance, and the working temperature can reach 90 ℃, so the transmission capacity is larger; the density is lower, and the weight is lighter; the dielectric coefficient is small to reduce loss, and no or little smoke or harmful gas is generated during combustion.

3. The utility model provides an armor and oversheath can protect the cable insulation not receive the damage to satisfy the requirement of various service conditions and environment.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic structural view of a novel polyvinyl chloride power cable with a steel-tape armored copper core provided by the present invention;

fig. 2 is a schematic diagram of a right side view structure according to the present invention;

in the figure: 1. an outer sheath; 2. an insulating layer; 3. an armor layer; 4. an isolation sleeve; 5. wrapping a tape; 6. a conductor; 7. and (3) a filling material.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides a novel steel strip armored copper core polyvinyl chloride power cable technical scheme: the utility model provides a novel have steel band armor formula copper core polyvinyl chloride power cable, including oversheath 1 and conductor 6, oversheath 1 adopts HI-90 sheath material to pack, oversheath 1 inner wall position department is provided with fixed glue, and through fixed glue and armor 3 fixed connection, mainly play mechanical enhancement and corrosion protection, the protection cable is insulating not receive the damage, and satisfy the requirement of various service conditions and environment, oversheath 1 inner wall position department is provided with armor 3, armor 3 adopts the steel band armor to pack the work, armor 3 through fixed glue respectively with spacer 4 and oversheath 1 fixed connection, the protection cable is not damaged by external force. The steel-tape armor mainly has the advantages that the steel-wire armor is compression-resistant, the steel-wire armor mainly has tensile strength, the position of the inner wall of the armor layer 3 is provided with the isolation sleeve 4, the isolation sleeve 4 is packaged by HI-90 sheathing material, the isolation sleeve 4 is respectively and fixedly connected with the armor layer 3 and the wrapping tape 5 through fixing glue to prevent the insulating layer 2 from being damped and mechanically damaged, the position of the inner wall of the isolation sleeve 4 is provided with the wrapping tape 5, the wrapping tape 5 adopts non-woven fabric to carry out tight packaging work, the middle position between the wrapping tape 5 and the filling material 7 is provided with a water-proof film to tightly wrap the multi-core cable core to prevent the core from being damaged and damped, the position of the inner wall of the wrapping tape 5 is provided with the filling material 7, the filling material 7 is made of polypropylene material, the inner positions of the upper side and the lower side, stable in structure, the filler of cable still plays the effect such as block water, fire-retardant, it is fire-resistant, both sides internal position department and the middle internal position department in the place ahead about 7 rear sides of stopping are provided with insulating layer 2, insulating layer 2 sets up to three, the crosslinked polyethylene insulating material that three insulating layer 2 adopted, three insulating layer 2 is inside, the external diameter equals, three insulating layer 2 thickness homogeneous phase, three insulating layer 2 operating temperature can reach 90 ℃, polyvinyl chloride is insulating outside having better electrical property, the heat altered shape is little, have higher heat resistance and ageing resistance, simultaneously density is less, weight is lighter. The dielectric coefficient is small to reduce the loss, no or few dense smoke or harmful gas is produced during combustion, the conductors 6 are arranged at the inner wall positions of the three insulating layers 2, the number of the conductors 6 is three, the three conductors 6 are manufactured by adopting a method of pressing a circle, the diameters of the three conductors 6 are equal, the gaps of the wires are reduced, the filling coefficient is improved, the outer diameter of the cable is effectively reduced, the material of a cable sheath is saved, and the product cost is reduced.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the worker can put the whole novel steel-tape armored copper-core polyvinyl chloride power cable into use, when in use, the worker can firstly intercept the length of the steel-tape armored copper-core polyvinyl chloride power cable according to the distance between an external power supply and equipment, then the worker can peel off the outer sheath 1, the armor layer 3, the isolation sleeve 4, the wrapping tape 5 and the insulating layer 2 through an external tool according to the sequence from outside to inside, so that the conductor 6 can be peeled and exposed, when the three conductors 6 at the two ends of the power cable are peeled off, the corresponding wire noses are fixedly sleeved at the outer wall positions of the conductor 6, and at the moment, the worker firstly electrically connects the wire noses of the outer walls of the three conductors 6 at the two ends of the power cable with the external power supply and the equipment respectively, the staff then switches on the power supply, which causes the current to be transmitted to the inside of the external device through the wire nose and the three conductors 6, so that the external device can work better, which is the working principle of the whole device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel have steel band armouring formula copper core polyvinyl chloride power cable, includes oversheath (1) and conductor (6), its characterized in that: the armored layer (3) is arranged on the inner wall of the outer sheath (1), the isolation sleeve (4) is arranged on the inner wall of the armored layer (3), the wrapping tape (5) is arranged on the inner wall of the isolation sleeve (4), the filling material (7) is arranged on the inner wall of the wrapping tape (5), the insulating layers (2) are arranged on the inner positions of the upper side and the lower side of the rear of the filling material (7) and the middle inner position of the front of the filling material, the conductors (6) are arranged on the inner wall of the three insulating layers (2), the outer sheath (1) is packaged by using HI-90 sheath materials, the fixing glue is arranged on the inner wall of the outer sheath (1) and is fixedly connected with the armored layer (3) through the fixing glue, the armored layer (3) is packaged by using steel-tape armoring, the armored layer (3) is fixedly connected with the isolation sleeve (4) and the, spacer sleeve (4) adopt HI-90 restrictive coating to pack, spacer sleeve (4) respectively with armor (3) and around band (5) fixed connection through fixed glue, adopt the non-woven fabrics to carry out closely packing work around band (5), be provided with the water-stop film around band (5) and stopping (7) intermediate position department, stopping (7) adopt the polypropylene material to constitute, both sides internal position department and the inside intermediate position department in the place ahead are provided with fixed round hole about stopping (7) rear.

2. The novel steel tape armored copper core polyvinyl chloride power cable as claimed in claim 1, wherein: the insulation layer (2) is three, the insulation layer (2) is made of cross-linked polyethylene insulation materials, the inner diameter and the outer diameter of the insulation layer (2) are equal, the thickness of the insulation layer (2) is equal, and the working temperature of the insulation layer (2) can reach 90 ℃.

3. The novel steel tape armored copper core polyvinyl chloride power cable as claimed in claim 1, wherein: the number of the conductors (6) is three, the three conductors (6) are manufactured by adopting a compact circular method, and the diameters of the three conductors (6) are equal.