CN217847525U

CN217847525U - Crosslinked polyethylene insulated power cable

Info

Publication number: CN217847525U
Application number: CN202221658728.XU
Authority: CN
Inventors: 杨郁春
Original assignee: Guangdong Guicheng Cable Co ltd
Current assignee: Guangdong Guicheng Cable Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-18
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses an insulating power cable of crosslinked polyethylene, including cable body, dead slot and inoxidizing coating, this internal four cable cores that are provided with of cable, the cable core periphery is provided with insulating cover, insulating cover periphery is provided with the filling layer, the filling layer periphery is provided with fire-resistant mica tape. The beneficial effects are that: the utility model discloses an inoxidizing coating and the dead slot that set up adopt special air packing technology, make the cable possess thermal-insulated, cold-proof and resistance to compression protective performance in the lump, use a small amount of material to realize the multiple protective properties to the cable, the cable of avoiding producing is too thick and heavy to the convenience when having improved the cable and having laid the use.

Description

Crosslinked polyethylene insulated power cable

Technical Field

The utility model relates to a power cable technical field, concretely relates to insulating power cable of crosslinked polyethylene.

Background

The crosslinked polyethylene insulated power cable is a cable suitable for the field of power distribution networks and the like, has the characteristics of simple structure, light weight, good heat resistance and the like, and is commonly used for urban underground power grids, power transmission and transmission in industrial and mining industries, power station leading-out lines and the like.

However, in the aspect of protection, most of the existing crosslinked polyethylene insulated power cables rely on materials made of different materials to realize the protection characteristic of the cables, so that the cables are increasingly too thick and heavy, the convenience of the cables during laying and using is reduced, and therefore a novel crosslinked polyethylene insulated power cable is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome prior art not enough, now provide an insulating power cable of crosslinked polyethylene, solved current insulating power cable of crosslinked polyethylene in the aspect of the protection, mostly rely on the materials that increase different materials to realize the protective characteristic of cable, lead to the cable more and more too thick and heavy to the problem of the convenience when having reduced the cable and having laid the use.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides an insulating power cable of crosslinked polyethylene, including cable body, dead slot and inoxidizing coating, this internal four cable cores that are provided with of cable, cable core periphery is provided with insulating cover, insulating cover periphery is provided with the filling layer, the filling layer periphery is provided with fire-resistant mica tape, fire-resistant mica tape periphery is provided with the PVC inside lining, PVC inside lining periphery is provided with the inoxidizing coating, it has to be cyclic annular distribution in the protective layer the dead slot, the inoxidizing coating periphery is provided with the electromagnetic shield layer, the electromagnetic shield layer periphery is provided with the waterproof layer, the waterproof layer periphery is provided with the outsourcing wearing layer.

Furthermore, the cable core is bonded with the insulating sleeve, and the filling layer is bonded with the insulating sleeve.

Through adopting above-mentioned technical scheme, the cable core can the on-current, insulating cover can play insulating anticreep effect, the filling layer can make it is firm to fix between the cable core, avoids appearing the extrusion between.

Furthermore, the fire-resistant mica tape is bonded with the filling layer, and the PVC lining is bonded with the fire-resistant mica tape.

Through adopting above-mentioned technical scheme, fire-resistant mica tape can play high temperature resistant, the fire prevention fire-retardant effect, the PVC inside lining can increase the steadiness and the intensity of cable body.

Furthermore, the protective layer is adhered to the PVC lining, and the empty groove is formed in the protective layer.

By adopting the technical scheme, the empty groove is filled with air, and the protective layer is matched with the empty groove for use, so that the effects of insulating heat, keeping warm and enhancing the strength of the cable body can be achieved.

Furthermore, the electromagnetic shielding layer is bonded with the protective layer, and the waterproof layer is bonded with the electromagnetic shielding layer.

By adopting the technical scheme, the electromagnetic shielding layer can shield external electromagnetic interference, and the waterproof layer can be used for placing external water immersion, so that a better waterproof and anti-seepage effect is achieved.

Furthermore, the outer wear-resistant layer is bonded with the waterproof layer and is made of polyethylene.

Through adopting above-mentioned technical scheme, the outsourcing wearing layer has better wear-resisting protective effect, avoids the cable body is damaged easily.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

in order to solve the problem that the protection characteristic of the cable is mostly realized by increasing materials made of different materials in the protection aspect of the existing crosslinked polyethylene insulated power cable, the cable is larger and heavier, and the convenience in cable laying and using is reduced, the utility model discloses a special air filling process is adopted for the arranged protective layer and the empty slot, so that the cable has the performances of heat insulation, heat preservation and pressure resistance protection, a small amount of materials are used for realizing multiple protection performance on the cable, the produced cable is prevented from being too large and heavier, and the convenience in cable laying and using is improved;

drawings

Fig. 1 is a front view of a cross-linked polyethylene insulated power cable according to the present invention;

fig. 2 is a left side view of the cross-linked polyethylene insulated power cable of the present invention.

The reference numerals are illustrated below:

1. a cable body; 2. an empty groove; 3. a pressure resistant layer; 4. a cable core; 5. an insulating sleeve; 6. fire-resistant mica tapes; 7. a filling layer; 8. wrapping a wear-resistant layer; 9. a waterproof layer; 10. an electromagnetic shielding layer; 11. and (4) PVC lining.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, the cross-linked polyethylene insulated power cable in this embodiment includes a cable body 1, empty slots 2 and a protective layer 3, four cable cores 4 are disposed in the cable body 1, an insulating sleeve 5 is disposed on the periphery of each cable core 4, a filling layer 7 is disposed on the periphery of each insulating sleeve 5, a fire-resistant mica tape 6 is disposed on the periphery of each filling layer 7, the fire-resistant mica tape 6 has a fire-proof and flame-retardant function, a PVC lining 11 is disposed on the periphery of each fire-resistant mica tape 6, the protective layer 3 is disposed on the periphery of the PVC lining 11, empty slots 2 are annularly distributed in the protective layer 3, air is filled in the empty slots 2, the empty slots 2 are of a partition-type structure, 10 cm is a partition gap, an electromagnetic shielding layer 10 is disposed on the periphery of the protective layer 3, a waterproof layer 9 is disposed on the periphery of the electromagnetic shielding layer 10, and the waterproof layer 9 is provided with a peripheral wear-resistant layer 8.

As shown in fig. 1-2, in this embodiment, the cable core 4 is bonded to the insulating sleeve 5, the filling layer 7 is bonded to the insulating sleeve 5, the cable core 4 can conduct current, the insulating sleeve 5 can achieve the effects of insulation and leakage prevention, the filling layer 7 can fix the cable core 4 firmly to avoid extrusion therebetween, the fire-resistant mica tape 6 is bonded to the filling layer 7, the PVC liner 11 is bonded to the fire-resistant mica tape 6, the fire-resistant mica tape 6 can achieve high temperature resistance and fire-retardant effects, the PVC liner 11 can increase the stability and strength of the cable body 1, the protective layer 3 is bonded to the PVC liner 11, the empty slot 2 is formed on the protective layer 3, the empty slot 2 is filled with air, the protective layer 3 is used in cooperation with the empty slot 2 to achieve heat insulation and warm keeping, the strength of the cable body 1 is enhanced, the electromagnetic shielding layer 10 is bonded to the protective layer 3, the waterproof layer 9 is bonded to the electromagnetic shielding layer 10, the electromagnetic shielding layer 10 can shield external electromagnetic interference, the waterproof layer 9 can place external water to achieve a better waterproof and leakage prevention effect, the outer wear-resistant layer 8 is bonded to the outer wear-resistant layer 8, and the outer wear-resistant cable body is made of polyethylene, and the outer polyethylene can easily avoid damage of the cable body 1.

The specific implementation process of this embodiment is as follows: when using, at first the cable adopts four cable cores 4 to transmit electricity, outside polyethylene outsourcing wearing layer 8 plays wear-resisting protective function, the PVC inside lining 11 that adopts can increase the steadiness and the intensity of cable body 1, adopt the method to the air of filling 7, realize the lightweight production of cable, unnecessary material has been less, under not influencing the original protective characteristic of cable, make the cable possess thermal-insulated, cold-proof and resistance to compression protective performance together, use a small amount of material to realize the multiple barrier propterty to the cable, thereby realize laying the use fast of cable.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crosslinked polyethylene insulated power cable, characterized in that: including cable body (1), dead slot (2) and inoxidizing coating (3), be provided with four cable cores (4) in cable body (1), cable core (4) periphery is provided with insulating cover (5), insulating cover (5) periphery is provided with filling layer (7), filling layer (7) periphery is provided with fire resistant mica tape (6), fire resistant mica tape (6) periphery is provided with PVC inside lining (11), PVC inside lining (11) periphery is provided with inoxidizing coating (3), it has cyclic distribution to be in inoxidizing coating (3) dead slot (2), inoxidizing coating (3) periphery is provided with electromagnetic shield layer (10), electromagnetic shield layer (10) periphery is provided with waterproof layer (9), waterproof layer (9) periphery is provided with outsourcing wearing layer (8).

2. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the cable core (4) is adhered to the insulating sleeve (5), and the filling layer (7) is adhered to the insulating sleeve (5).

3. A crosslinked polyethylene insulated electric power cable according to claim 1, characterized in that: the fire-resistant mica tape (6) is bonded with the filling layer (7), and the PVC lining (11) is bonded with the fire-resistant mica tape (6).

4. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the protective layer (3) is adhered to the PVC lining (11), and the empty groove (2) is formed in the protective layer (3).

5. A crosslinked polyethylene insulated electric power cable according to claim 1, characterized in that: the electromagnetic shielding layer (10) is bonded with the protective layer (3), and the waterproof layer (9) is bonded with the electromagnetic shielding layer (10).

6. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the outer wear-resistant layer (8) is bonded with the waterproof layer (9), and the outer wear-resistant layer (8) is made of polyethylene.