CN210956213U

CN210956213U - Novel tensile flexible fireproof medium-voltage cable

Info

Publication number: CN210956213U
Application number: CN201922402921.1U
Authority: CN
Inventors: 郭振杰; 王东方; 王东伟; 沈唤通
Original assignee: Huaqi Cable Co ltd
Current assignee: Huaqi Cable Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-07-07
Anticipated expiration: 2029-12-27

Abstract

The utility model belongs to the technical field of the medium voltage cable technique and specifically relates to a novel flexible fire prevention medium voltage cable of tensile, including sinle silk and mineral matter insulating layer, the cladding of mineral matter insulating layer is in the sinle silk outside, the outside cladding of mineral matter insulating layer is equipped with the flame retardant coating, the outside cladding of flame retardant coating is equipped with fire prevention mud, the outside cladding of fire prevention mud is equipped with weaves the nylon yarn, weave nylon yarn and keep apart the layer between equal angle equipartition alternate and be equipped with a plurality of elastic insulation pads, the outside cladding of weaving the nylon yarn is equipped with the nylon sheath, the outside cladding of nylon sheath is equipped with the oversheath. The utility model discloses can protect inside sinle silk when the conflagration takes place and can continue to transmit the electric energy, improve bending property, tensile strength has practicality, is fit for promoting.

Description

Novel tensile flexible fireproof medium-voltage cable

Technical Field

The utility model relates to a medium voltage cable technical field especially relates to a novel flexible fire prevention medium voltage cable of tensile.

Background

Medium voltage cable, a cable with a withstand voltage of 35 kv and below, has a relatively large withstand voltage in the prior art, and is widely used in various applications. At present, for each industry, the cable has more and more requirements on the fireproof performance, the requirements on the medium-voltage cable are the same, and when the cable is vertically laid and used in a high-rise building, the sheath is easily broken to cause accidents due to the fact that the weight load of the medium-voltage cable is at a lifting point and a fixing point. In order to increase the tensile strength of a cable, a steel strand is added into a cable core of the cable, the weight of the cable is increased due to the addition of the steel strand, the steel strand is added into the cable core, and the outer sheath has no effect on protection, so that a novel tensile flexible fireproof medium-voltage cable is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that there is current middling pressure cable fire behavior poor among the prior art, tensile strength is low, and the novel flexible fire prevention middling pressure cable of a novel tensile that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel flexible fire prevention medium voltage cable of tensile, includes sinle silk and mineral substance insulating layer, the cladding of mineral substance insulating layer is in the sinle silk outside, the outside cladding of mineral substance insulating layer is equipped with the flame retardant coating, the outside cladding of flame retardant coating is equipped with the isolation layer, the outside cladding of isolation layer is equipped with fire prevention mud, fire prevention mud's outside cladding is equipped with weaves the nylon yarn, weave nylon yarn and isolation layer between the equal angle of dividing equally and alternate and be equipped with a plurality of elastic insulation pads, the outside cladding of weaving the nylon yarn is equipped with the nylon sheath, the outside cladding of nylon sheath is equipped with the overs.

Preferably, the isolation layer is of a polyethylene structure.

Preferably, the outer sheath is of a low-smoke halogen-free polyolefin structure.

Preferably, the mineral insulating layer is a magnesium oxide insulating fireproof material.

Preferably, the fire-resistant layer is of a mica powder structure.

Preferably, the wire core comprises 1-3 cores of mutually twisted current-carrying wires.

The utility model provides a pair of novel flexible fire prevention medium voltage cable of tensile, beneficial effect lies in: the utility model discloses a at the core outside cladding nylon sheath, weave the nylon yarn, the isolation layer, flame retardant coating and mineral substance insulating layer, and pack fire prevention mud between the isolation layer and weaving the nylon yarn, and supplementary elastic insulation fills up the support that fire prevention mud filled the clearance, make novel flexible fire prevention medium voltage cable of tensile possess the fire prevention high temperature resistance ability of high performance, alleviate self weight and have stronger tensile strength simultaneously concurrently, this cable can protect inside sinle silk when the conflagration takes place and can continue transmission electric energy, improve bending property, tensile property has practicality.

Drawings

Fig. 1 is a schematic structural view of a novel tensile flexible fireproof medium voltage cable provided by the present invention;

fig. 2 is the utility model provides a novel section structure schematic diagram of flexible fire prevention medium voltage cable of tensile.

In the figure: oversheath 1, nylon sheath 2, weave nylon yarn 3, fire prevention mud 4, elastic insulation pad 5, isolation layer 6, flame retardant coating 7, mineral substance insulating layer 8, sinle silk 9.

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.

Referring to fig. 1-2, a novel tensile flexible fireproof medium voltage cable comprises a wire core 9 and a mineral insulating layer 8, wherein the wire core 9 comprises 1-3 electrified wires twisted with each other, the mineral insulating layer 8 is made of magnesium oxide insulating fireproof material, the mineral insulating layer 8 covers the wire core 9, a fireproof layer 7 covers the mineral insulating layer 8, the fireproof layer 7 is of a mica powder structure, an isolating layer 6 covers the fireproof layer 7, the isolating layer 6 is of a polyethylene structure, fireproof mud 4 covers the isolating layer 6, the fireproof mud 4 is a mixed structure of magnesium hydroxide powder and glass water, woven nylon yarns 3 cover the fireproof mud 4, a plurality of elastic insulating pads 5 are uniformly inserted at equal angles between the woven nylon yarns 3 and the isolating layer 6, the outside cladding of weaving nylon yarn 3 is equipped with nylon sheath 2, the outside cladding of nylon sheath 2 is equipped with oversheath 1, oversheath 1 is low smoke and zero halogen polyolefin structure.

The utility model discloses an at sinle silk 9 outside cladding nylon sheath 2, weave nylon yarn 3, isolation layer 6, flame retardant coating 7 and mineral matter insulating layer 8, and at isolation layer 6 and weave nylon yarn 3 within a definite time fill fire prevention mud 4, and supplementary elastic insulation pad 5 carries out the support that fire prevention mud 4 filled the clearance, make novel flexible fire prevention medium voltage cable of tensile possess the fire prevention high temperature resistance performance of high performance, alleviate self weight and have stronger tensile strength simultaneously concurrently, this cable can protect inside sinle silk 9 to continue transmission electric energy when the conflagration takes place, improve bending property, tensile property has practical performance.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel flexible fire prevention medium voltage cable of tensile, includes sinle silk (9) and mineral substance insulating layer (8), its characterized in that, mineral substance insulating layer (8) cladding is in sinle silk (9) outside, the outside cladding of mineral substance insulating layer (8) is equipped with flame retardant coating (7), the outside cladding of flame retardant coating (7) is equipped with isolation layer (6), the outside cladding of isolation layer (6) is equipped with fire prevention mud (4), the outside cladding of fire prevention mud (4) is equipped with weaves nylon yarn (3), it equally divides the interlude to be equipped with a plurality of elastic insulation pads (5) to weave nylon yarn (3) and isolation layer (6) between the angle, the outside cladding of weaving nylon yarn (3) is equipped with nylon sheath (2), the outside cladding of nylon sheath (2) is equipped with oversheath (1).

2. A new tensile flexible fire proof medium voltage cable according to claim 1, characterized in that the insulation layer (6) is of polyethylene construction.

3. A new tensile flexible fire-proof medium voltage cable according to claim 1, characterized in that said outer sheath (1) is of low smoke zero halogen polyolefin structure.

4. A new tensile flexible fire-resistant medium voltage cable according to claim 1, characterized in that said mineral insulation layer (8) is a magnesium oxide insulation fire-resistant material.

5. A new tensile flexible fire-resistant medium voltage cable according to claim 1, characterized in that said fire-resistant layer (7) is of mica powder structure.

6. A new tensile flexible fire-resistant medium voltage cable according to claim 1, wherein said core (9) comprises 1-3 cores of twisted electrical conductors.