CN207199352U

CN207199352U - A kind of vcehicular tunnel power cable

Info

Publication number: CN207199352U
Application number: CN201720978725.7U
Authority: CN
Inventors: 侯洁新
Original assignee: Jiangxi Nan Yuan Cable Co Ltd
Current assignee: Jiangxi Nan Yuan Cable Co Ltd
Priority date: 2017-08-07
Filing date: 2017-08-07
Publication date: 2018-04-06
Anticipated expiration: 2027-08-07

Abstract

The utility model discloses a kind of vcehicular tunnel power cable, including earth lead, power leads and pilot, the dynamic wire of exterior annular array and pilot of earth lead, power leads and the quantity of pilot are three, three power leads and three pilots are distributed across the outside of earth lead, earth lead is provided with the first insulating sheath, and the side of the remote earth lead of the first insulating sheath is provided with first screen layer.The utility model is by setting antiseptic fire-retardation layer, oversheath, inner sheath, ceramic powders and rock wool to cooperate, effectively prevent electrical fire, solves vcehicular tunnel power cable incendive problem when fire occurs, by setting first screen layer, secondary shielding layer, the 3rd screen layer and anti-interference inserts to cooperate, effectively solve the problems, such as electromagnetic interference between wire, solve the problems, such as to prevent to interfere influence use between wire.

Description

A kind of vcehicular tunnel power cable

Technical field

Power cable technical field is the utility model is related to, specially a kind of vcehicular tunnel power cable.

Background technology

At present, with the development of science and technology, also in rapid advances, what is brought therewith is cable dosage in the field such as industry Increase, cable are typically the cable for having several or at least two similar ropes being twisted of several groups of every group of wires, every group of wire Between mutually insulated, and be often twisted into around a center, whole outside is surrounded by the coating of high-insulation, and the species of cable has very More, it is different that can apply the use environment in many fields and in different fields, therefore is also had not to cable Same requirement.

But existing vcehicular tunnel power cable needs to be changed not according to different geographical environments in the use of reality Same suitable power cable, in general cable is in high temperature or generation fire, it is easy to situation about burning, and cable meter occurs The damage of skin, electrical fire can be caused, bring bigger loss.

Utility model content

（One）The technical problem of solution

In view of the shortcomings of the prior art, the utility model provides a kind of vcehicular tunnel power cable, solves highway tunnel Road cable incendive problem when fire occurs.

（Two）Technical scheme

To achieve the above object, the utility model provides following technical scheme：A kind of vcehicular tunnel power cable, including connect Ground wire, power leads and pilot, the dynamic wire of exterior annular array and pilot of the earth lead, institute The quantity for stating power leads and pilot is three, and three power leads and three pilots are distributed across ground connection and led The outside of line, the earth lead are provided with the first insulating sheath, and the side of the remote earth lead of first insulating sheath is set There is first screen layer, the surface of the power leads is provided with the second insulating sheath, and second insulating sheath is away from power leads Side be provided with secondary shielding layer, the surface of the pilot is provided with the 3rd insulating sheath, and the 3rd insulating sheath is remote The side of pilot is provided with the 3rd screen layer, the confined air formed between the earth lead, power leads and pilot In be filled with anti-interference inserts, the outside of the power leads and pilot is provided with inner sheath, the inner sheath, power Rock wool is filled with the confined space formed between wire and pilot, the outside of the inner sheath is provided with oversheath, described Ceramic powders are filled between oversheath and inner sheath, the surface of the oversheath scribbles antiseptic fire-retardation layer.

Preferably, the earth lead is located at the medial center position of oversheath.

Preferably, the power leads on the inside of the oversheath and pilot are interspersed and on oversheath Central Symmetries Set.

Preferably, connected mode is Nian Jie between first insulating sheath and first screen layer.

Preferably, the connected mode between second insulating sheath and secondary shielding layer is bonding.

Preferably, the connected mode between the 3rd insulating sheath and the 3rd screen layer is bonding.

（Three）Beneficial effect

The utility model provides a kind of vcehicular tunnel power cable.Possesses following beneficial effect：

（1）The utility model by setting antiseptic fire-retardation layer, oversheath, inner sheath, ceramic powders and rock wool to cooperate, When fire occurring near power cable, the antiseptic fire-retardation layer that the surface of power cable scribbles can prevent cable from burning, outer shield The ceramic powders of filling effectively prevent the wire combustion inside cable in set and inner sheath, prevent band electrical fire, interior The rock wool filled between sheath, power leads and pilot, effectively prevents electrical fire, solves vcehicular tunnel electricity Power cable incendive problem when fire occurs.

（2）The utility model is by setting first screen layer, secondary shielding layer, the 3rd screen layer and anti-interference inserts phase Mutually coordinate, the electromagnetic interference of electric current influences each other between earth lead, power leads and pilot, effectively solves wire Between electromagnetic interference the problem of, solve the problems, such as to prevent that interfering influence between wire uses.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the utility model earth lead structural representation；

Fig. 3 is the utility model power leads structural representation；

Fig. 4 is the utility model pilot structural representation.

In figure：1 earth lead, 2 first insulating sheaths, 3 first screen layers, 4 power leads, 5 second insulating sheaths, 6 Two screen layers, 7 pilots, 8 the 3rd insulating sheaths, 9 the 3rd screen layers, 10 anti-interference inserts, 11 inner sheaths, 12 rock wools, 13 oversheaths, 14 ceramic powders, 15 antiseptic fire-retardation layers.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

As Figure 1-4, the utility model provides a kind of technical scheme：A kind of vcehicular tunnel power cable, including ground connection Wire 1, power leads 4 and pilot 7, the dynamic wire 4 of exterior annular array and pilot 7 of earth lead 1, move The quantity of power wire 4 and pilot 7 is three, and three power leads 4 and three pilots 7 are distributed across ground connection and led The outside of line 1, earth lead 1 are provided with the first insulating sheath 2, and the side of the remote earth lead 1 of the first insulating sheath 2 is provided with the One screen layer 3, connected mode is Nian Jie between the first insulating sheath 2 and first screen layer 3, and the surfaces of power leads 4 is provided with the Two insulating sheaths 5, the second side of the insulating sheath 5 away from power leads 4 are provided with secondary shielding layer 6, the second insulating sheath 5 and Connected mode between two screen layers 6 is bonding, and the surface of pilot 7 is provided with the 3rd insulating sheath 8, the 3rd insulating sheath 8 Side away from pilot 7 is provided with the 3rd screen layer 9, and the connected mode between the 3rd insulating sheath 8 and the 3rd screen layer 9 is Bonding, by setting first screen layer 3, secondary shielding layer 6, the 3rd screen layer 9 and anti-interference inserts 10 to cooperate, ground connection The electromagnetic interference of electric current influences each other between wire 1, power leads 4 and pilot 7, effectively solves electromagnetism between wire The problem of interference, the confined space formed between earth lead 1, power leads 4 and pilot 7 is interior to be filled with anti-interference filling The outside of material 10, power leads 4 and pilot 7 is provided with inner sheath 11, between inner sheath 11, power leads 4 and pilot 7 Rock wool 12 is filled with the confined space of composition, the outside of inner sheath 11 is provided with oversheath 13, and earth lead 1 is located at oversheath 13 Medial center position, the power leads 4 and pilot 7 of the inner side of oversheath 13 are interspersed and on the center pair of oversheath 13 Claiming to set, ceramic powders 14 are filled between oversheath 13 and inner sheath 11, the surface of oversheath 13 scribbles antiseptic fire-retardation layer 15, When fire occurring near power cable, the antiseptic fire-retardation layer 15 that the surface of power cable scribbles can prevent cable from burning, outside The ceramic powders 14 of filling effectively prevent the wire combustion inside cable in sheath 13 and inner sheath 11, prevent band electrically Fire, the rock wool 12 filled between inner sheath 11, power leads 4 and pilot 7, effectively prevents electrical fire.

When fire occurring near power cable, the antiseptic fire-retardation layer 15 that the surface of power cable scribbles can prevent cable The ceramic powders 14 of filling effectively prevent the wire combustion inside cable in burning, oversheath 13 and inner sheath 11, prevent from sending out Green tape electrical fire, the rock wool 12 filled between inner sheath 11, power leads 4 and pilot 7, effectively prevent electrically Fire, by setting first screen layer 3, secondary shielding layer 6, the 3rd screen layer 9 and anti-interference inserts 10 to cooperate, ground connection The electromagnetic interference of electric current influences each other between wire 1, power leads 4 and pilot 7, effectively solves electromagnetism between wire The problem of interference.

It can to sum up obtain, the utility model is by setting antiseptic fire-retardation layer 15, oversheath 13, inner sheath 11, ceramic powders 14 Cooperated with rock wool 12, when fire occurring near power cable, the antiseptic fire-retardation layer 15 that the surface of power cable scribbles can To prevent cable from burning, the ceramic powders 14 of filling effectively prevent the wire inside cable from firing in oversheath 13 and inner sheath 11 Burn, prevent band electrical fire, the rock wool 12 filled between inner sheath 11, power leads 4 and pilot 7 is effective anti- Electrical fire only occurs, solves vcehicular tunnel power cable incendive problem when fire occurs, by setting the first screen Cover layer 3, secondary shielding layer 6, the 3rd screen layer 9 and anti-interference inserts 10 to cooperate, earth lead 1, power leads 4 and control The electromagnetic interference of electric current influences each other between wire 7 processed, effectively solves the problems, such as electromagnetic interference between wire, solves anti- The problem of influence uses only is interfered between wire.

It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.In the absence of more restrictions, the key element limited by sentence " including a reference structure ", is not arranged Except other identical element in the process including the key element, method, article or equipment being also present.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of vcehicular tunnel power cable, including earth lead（1）, power leads（4）And pilot（7）, its feature exists In：The earth lead（1）The dynamic wire of exterior annular array（4）And pilot（7）, the power leads（4）With Pilot（7）Quantity be three, three power leads（4）With three pilots（7）It is distributed across earth lead （1）Outside, the earth lead（1）Provided with the first insulating sheath（2）, first insulating sheath（2）Remote ground connection lead Line（1）Side be provided with first screen layer（3）, the power leads（4）Surface be provided with the second insulating sheath（5）, described Two insulating sheaths（5）Away from power leads（4）Side be provided with secondary shielding layer（6）, the pilot（7）Surface be provided with 3rd insulating sheath（8）, the 3rd insulating sheath（8）Away from pilot（7）Side be provided with the 3rd screen layer（9）, institute State earth lead（1）, power leads（4）And pilot（7）Between be filled with anti-interference inserts in the confined space that forms （10）, the power leads（4）And pilot（7）Outside be provided with inner sheath（11）, the inner sheath（11）, power leads （4）And pilot（7）Between be filled with rock wool in the confined space that forms（12）, the inner sheath（11）Outside be provided with it is outer Sheath（13）, the oversheath（13）And inner sheath（11）Between be filled with ceramic powders（14）, the oversheath（13）Table Face scribbles antiseptic fire-retardation layer（15）.

A kind of 2. vcehicular tunnel power cable according to claim 1, it is characterised in that：The earth lead（1）It is located at Oversheath（13）Medial center position.

A kind of 3. vcehicular tunnel power cable according to claim 1, it is characterised in that：The oversheath（13）Inner side Power leads（4）And pilot（7）It is interspersed and on oversheath（13）Center symmetric setting.

A kind of 4. vcehicular tunnel power cable according to claim 1, it is characterised in that：First insulating sheath（2） With first screen layer（3）Between connected mode for bonding.

A kind of 5. vcehicular tunnel power cable according to claim 1, it is characterised in that：Second insulating sheath（5） And secondary shielding layer（6）Between connected mode for bonding.

A kind of 6. vcehicular tunnel power cable according to claim 1, it is characterised in that：3rd insulating sheath（8） With the 3rd screen layer（9）Between connected mode for bonding.