CN213339798U

CN213339798U - Environment-friendly multi-core flame-retardant fire-resistant high-voltage cable

Info

Publication number: CN213339798U
Application number: CN202022546422.2U
Authority: CN
Inventors: 薛虹; 戴凌云
Original assignee: JIANGSU DONGFENG CABLE CO Ltd
Current assignee: JIANGSU DONGFENG CABLE CO Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-01
Anticipated expiration: 2030-11-06

Abstract

The utility model relates to a cable fire prevention field just discloses a fire-retardant fire-resistant high tension cable of environmental protection multicore, including the mica tape, the mica tape is convex cylinder hollow structure, and both ends have seted up the opening about the mica tape, the multiunit copper line is installed to the hollow position in the middle of the mica tape, and the mica tape is close to the side of open position and sets up evenly distributed's recess, four groups the mica tape symmetry is placed, four groups mica tape arc outside cover has the polyethylene layer, four groups are established to the polyethylene layer cover the mica tape outside. This fire-retardant fire-resistant high tension cable of environmental protection multicore utilizes the fire-resistant coating in the outside to the preliminary fire prevention processing of cable inlet wire, then crosses the protection of silica gel sheath, reduces the influence of high temperature to the cable, and the silica gel sheath can not appear the fracture damage under-30 ~150, has good electrical insulation performance, utilizes fibrous layer and polyethylene layer to fire-resistant fire-retardant to the cable inlet wire, has improved holistic fire resistance to and high temperature resistance's characteristic.

Description

Environment-friendly multi-core flame-retardant fire-resistant high-voltage cable

Technical Field

The utility model relates to a cable fire prevention field specifically is a fire-retardant fire-resistant high tension cable of environmental protection multicore.

Background

The cable is an electric energy or signal transmission device, usually comprises several or several groups of wires, from prior art, usual cable, because fire resistance is not high, lead to the cable when the conflagration takes place, can't self have fine fire proofness, and the cable is at long-term high temperature, lead to outside cortex softening to drop and cause harm, use the cortex fracture for a long time for wherein the copper line exposes.

Therefore, an environment-friendly multi-core flame-retardant fire-resistant high-voltage cable is designed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a fire-retardant fire-resistant high tension cable of environmental protection multicore has solved unable self and has had fine fire behavior, and the cable is at long-term high temperature, leads to the outside cortex to soften and drops and cause harm, uses the cortex fracture for a long time for wherein the naked problem of copper line.

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

the utility model provides a fire-retardant fire-resistant high tension cable of environmental protection multicore, includes the mica tape, the mica tape is convex cylinder hollow structure, and the opening has been seted up at both ends about the mica tape, the multiunit copper line is installed to the hollow position in the middle of the mica tape, and the mica tape is close to the side of open position and sets up evenly distributed's recess, four groups the mica tape symmetry is placed, four groups mica tape arc outside cover has the polyethylene layer, four groups are established to the polyethylene layer cover the mica tape outside.

Further, a cavity is formed between the mica tapes, fire retardant filler is filled in the cavity, a leather hose is installed in the middle of the cavity, and high-performance flame-retardant fibers 8 are filled in the leather hose.

Further, polyethylene layer outside cover is equipped with the fibrous layer, the fibrous layer is made by fire prevention fibre high pressure.

Furthermore, the fiber layer outside cover is equipped with the steel wire net layer, the steel wire net layer is worked out by steel matter, hugs closely the fiber layer.

Further, the outside cover of steel wire stratum reticulare is equipped with the silica gel sheath, silica gel sheath inner wall and steel wire stratum reticulare tightly compound.

Furthermore, the outer side surface of the silica gel sheath is coated with a fire-resistant coating which is a non-toxic fire-resistant coating.

Furthermore, install the strengthening rib between the mica tape, the strengthening rib is the cylinder structure, and strengthening rib both ends plane fixed connection mica tape outer wall.

The utility model has the advantages that:

1. the utility model discloses a, utilize the fire-resistant coating in the outside to the preliminary fire prevention processing of cable inlet wire, then cross the protection of silica gel sheath, reduce the influence of high temperature to the cable, and the silica gel sheath can not appear the fracture damage under-30 ~150, has good electrical insulation performance, utilizes fibrous layer and polyethylene layer to the fire-resistant fire-retardant to the cable inlet wire, has improved holistic fire resistance to and the characteristic of high temperature resistance.

2. The utility model discloses a, utilize the mica tape to support, and the recess of seting up on the mica tape reduces the weight of mica tape, increases the life cycle on other layers, utilizes the strengthening rib to support four group's mica tapes, utilizes the filler between the mica tape to hinder heat simultaneously, utilizes the inside carbon dioxide that floods of leather hose, can increase the heat-sinking capability of cable, utilizes the wire net layer, wholly supports the protection to the cable.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of the structure of the silica gel sheath of the present invention;

fig. 3 is a perspective view of the middle mica tape structure of the present invention.

In the figure: 1. a refractory coating; 2. a silica gel sheath; 3. a steel wire mesh layer; 4. a fibrous layer; 5. a polyethylene layer; 6. mica tapes; 7. a copper wire; 8. high performance flame retardant fibers 8; 9. a cavity 9; 10. a fire barrier filling 10; 11. a leather hose; 12. an opening; 13. a groove; 14. and (5) reinforcing ribs.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to FIGS. 1-3: the utility model provides a fire-retardant fire-resistant high tension cable of environmental protection multicore, including mica tape 6, mica tape 6 is convex cylinder hollow structure, and opening 12 has been seted up at both ends about mica tape 6, multiunit copper line 7 is installed to the hollow position in the middle of mica tape 6, and mica tape 6 is close to the side of opening 12 position and has seted up evenly distributed's recess 13, four groups of mica tapes 6 symmetry are placed, four groups of 6 arc outside covers of mica tape have polyethylene layer 5, polyethylene layer 5 covers is established in four groups of mica tape 6 outsides, utilize the fire-resistant coating 1 in the outside to the preliminary fire control of cable inlet wire, then cross the protection of silica gel sheath 2, reduce the influence of high temperature to the cable, and the silica gel sheath 2 can not appear the fracture damage under-30 ~150, there is good electrical.

Further, a cavity 9 is formed between the mica tapes 6, fire retardant filler 10 is filled in the cavity 9, a leather hose 11 is installed in the middle of the cavity 9, and high-performance flame retardant fibers 8 are filled in the leather hose 11.

Further, 5 outside covers on polyethylene layer are equipped with fibrous layer 4, fibrous layer 4 is made by the fire prevention fibre high pressure, 4 outside covers on fibrous layer are equipped with steel wire netting layer 3, it forms to work out by steel, hug closely

fibrous layer

4, 3 outside covers of steel wire netting layer are equipped with

silica gel sheath

2, 2 inner walls of silica gel sheath are tightly compound with steel wire netting layer 3, the outside surface of silica gel sheath 2 scribbles fire-resistant coating 1, fire-resistant coating 1 is nontoxic fire-resistant coating, utilize fibrous layer 4 and polyethylene layer 5 to be fire-retardant to the cable inlet wire, holistic fire resistance has been improved, and the characteristic of high temperature resistance.

Wherein, install strengthening rib 14 between the mica tape 6, strengthening rib 14 is the cylinder structure, and 14 both ends planes fixed connection mica tape 6 outer walls of strengthening rib, utilizes strengthening rib 14 to support four groups of mica tapes 6.

To sum up, the utility model discloses when using, utilize the fire-resistant coating 1 in the outside to the preliminary fire prevention processing of cable inlet wire, then pass through the protection of silica gel sheath 2, reduce the influence of high temperature to the cable, and silica gel sheath 2 can not appear the fracture damage under-30 ~150 ℃, have good electrical insulation performance, utilize fibrous layer 4 and polyethylene layer 5 to the fire-resistant fire-retardant of cable inlet wire, improved holistic fire resistance, and high temperature resistance characteristic; utilize mica tape 6 to support, and the recess 13 of seting up on the mica tape 6 reduces the weight of mica tape 6, increases the life cycle on other layers, utilizes strengthening rib 14 to support four groups of mica tapes 6, utilizes the filler between the mica tape 6 to hinder heat simultaneously, utilizes the inside carbon dioxide that fills of leather hose 11, can increase the heat-sinking capability of cable, utilizes steel wire stratum reticulare 3, supports the protection to the cable is whole.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an fire-retardant fire-resistant high tension cable of environmental protection multicore, includes mica tape (6), its characterized in that: mica tape (6) are arc cylinder hollow structure, and opening (12) have been seted up at both ends about mica tape (6), multiunit copper line (7) are installed to mica tape (6) middle hollow position, and mica tape (6) are close to the side of opening (12) position and offer evenly distributed's recess (13), four groups mica tape (6) symmetric placement, four groups mica tape (6) arc outside cover has polyethylene layer (5), four groups are established in polyethylene layer (5) cover mica tape (6) outside.

2. The environment-friendly multi-core flame-retardant fire-resistant high-voltage cable as claimed in claim 1, wherein: seted up cavity (9) between mica tape (6), back-fire relief filler (10) are filled to cavity (9) inside, leather hose (11) are installed to the intermediate position of cavity (9), and inside packing of leather hose (11) has high performance flame retardant fiber (8).

3. The environment-friendly multi-core flame-retardant fire-resistant high-voltage cable as claimed in claim 1, wherein: polyethylene layer (5) outside cover is equipped with fibrous layer (4), fibrous layer (4) are made by fire prevention fibre high pressure.

4. The environment-friendly multi-core flame-retardant fire-resistant high-voltage cable as claimed in claim 3, wherein: the outer side of the fiber layer (4) is sleeved with a steel wire mesh layer (3), and the steel wire mesh layer (3) is woven by steel materials and clings to the fiber layer (4).

5. The environment-friendly multi-core flame-retardant fire-resistant high-voltage cable as claimed in claim 4, wherein: the outer side of the steel wire mesh layer (3) is sleeved with a silica gel sheath (2), and the inner wall of the silica gel sheath (2) is tightly compounded with the steel wire mesh layer (3).

6. The environment-friendly multi-core flame-retardant fire-resistant high-voltage cable as claimed in claim 5, wherein: the outer side surface of the silica gel sheath (2) is coated with a fireproof coating (1), and the fireproof coating (1) is a non-toxic fireproof coating.

7. The environment-friendly multi-core flame-retardant fire-resistant high-voltage cable as claimed in claim 1, wherein: install between mica tape (6) strengthening rib (14), strengthening rib (14) are the cylinder structure, and strengthening rib (14) both ends plane fixed connection mica tape (6) outer wall.