CN204991237U

CN204991237U - High temperature resistant lock armo power cable

Info

Publication number: CN204991237U
Application number: CN201520627567.1U
Authority: CN
Inventors: 徐延琴; 唐文军; 杨小康; 王文佳; 袁建国
Original assignee: Electric Group PLC Of Jin Yuan
Current assignee: Electric Group PLC Of Jin Yuan
Priority date: 2015-08-19
Filing date: 2015-08-19
Publication date: 2016-01-20
Anticipated expiration: 2025-08-19

Abstract

The utility model provides a high temperature resistant lock armo power cable, hang down cigarette flame retardant polyolefin oversheath layer including a first sinle silk, many second sinle silks, fire -retardant filler material, fire -retardant inner liner, lock armo layer, heat -conducting layer, nothing bittern, many second sinle silks use first sinle silk to be the circumference distribution as the center, and the cross -sectional area of second sinle silk is greater than the cross -sectional area of first sinle silk, the gap filling has fire -retardant filler material between first sinle silk and second sinle silk, and fire -retardant inner liner parcel is in the first sinle silk and the second sinle silk outside, and lock armo layer parcel is in the fire -retardant inner liner outside, and the heat -conducting layer parcel does not have steamed low cigarette flame retardant polyolefin oversheath layer parcel in the heat -conducting layer outside in the lock armo layer outside. The utility model discloses the creep resistance is good, and high pliable and tough, the height extends, and low bounce -back is connected stably, and high temperature resistance can be good, firm tough, long service life.

Description

A kind of high temperature resistant lock armo power cable

Technical field

The utility model relates to technical field of electric wires and cables, particularly relates to a kind of high temperature resistant lock armo power cable.

Background technology

Aluminium alloy lock armo power cable is widely used in house, skyscraper, construction of road and bridge and other public arenas.Because aluminium alloy cable lays through being usually used in public arena and open air, so require that this cable has weather resistance and fire resistance.Traditional aluminium alloy armored cable, in order to reach the requirement of weather resistance and fire resistance, normally adopts weatherable materials and fire proofing at the coat layer of power cable.Although this material can reach weather-proof requirement, do not obtain the mechanical protection of armouring, conduction rate variance, shielding is poor, and fire resistance is poor, easy fracture, and useful life is short.

Utility model content

In order to solve the technical problem existed in background technology, the utility model proposes a kind of high temperature resistant lock armo power cable, resistance to elevated temperatures is good, firm tough, long service life.

The one that the utility model proposes is high temperature resistant lock armo power cable, comprises first core, many second cores, flame resistant filler material, fire-retardant inner covering, lock armo layer, heat-conducting layer, halogen-free and low-smoke flame-retardant polyolefin external sheath layers, wherein:

First core comprises the first conductor, the first inorganic fire proof material layer, the first crosslinked polyetylene insulated layer, and the first inorganic fire proof material layer is wrapped in outside the first conductor, and the first crosslinked polyetylene insulated layer is wrapped in outside the first inorganic fire proof material layer;

Second core comprises the second conductor, the second inorganic fire proof material layer, the second crosslinked polyetylene insulated layer, and the second inorganic fire proof material layer is wrapped in outside the second conductor, and the second crosslinked polyetylene insulated layer is wrapped in outside the second inorganic fire proof material layer;

Many second cores circumferentially distribute centered by the first core, the cross-sectional area of the second core is greater than the cross-sectional area of the first core, gap-fill between the first core and the second core has flame resistant filler material, fire-retardant inner covering is wrapped in outside the first core and the second core, lock armo layer is wrapped in outside fire-retardant inner covering, heat-conducting layer is wrapped in outside lock armo layer, and halogen-free and low-smoke flame-retardant polyolefin external sheath layer is wrapped in outside heat-conducting layer.

Preferably, the first conductor and the second conductor all adopt aluminium alloy to make.

Preferably, glass fiber high-temperature rope is provided with between the second core of arbitrary neighborhood.

Preferably, be provided with in heat-conducting layer along its fire-retardant particle circumferentially.

Preferably, lock armo layer adopts 5000 line aluminium alloy band lock armos.

In the utility model, the first core, the second core conductor all adopt aluminium alloy conductor; Inorganic fire proof material layer is equipped with outside first core, the second core, improve the resistance to elevated temperatures of cable, cable adopts halogen-free and low-smoke flame-retardant polyolefin oversheath, higher temperature can be born, and harmful Substances Pollution environment can not be produced in hot environment, thus make its environmental-protecting performance more excellent, meet present the advocated environmental protection concept of people; Cable is also provided with heat-conducting layer, and the heat that cable work produces outwards can be conducted, avoid heat to concentrate on cable center position, resistance to elevated temperatures is good.

Accompanying drawing explanation

Fig. 1 is the one high temperature resistant lock armo power cable structure schematic diagram that the utility model proposes.

Embodiment

With reference to Fig. 1, the utility model proposes a kind of high temperature resistant lock armo power cable, comprise first core 1, three second cores 2, flame resistant filler material 3, fire-retardant inner covering 5, lock armo layer 6, heat-conducting layer 7, halogen-free and low-smoke flame-retardant polyolefin external sheath layers 8, wherein:

First core 1 comprises the crosslinked polyetylene insulated layer 13 of the first conductor 11, first inorganic fire proof material layer 12, first, first inorganic fire proof material layer 12 is wrapped in outside the first conductor 11, and the first crosslinked polyetylene insulated layer 13 is wrapped in outside the first inorganic fire proof material layer 12.

Three second cores 2 circumferentially distribute centered by the first core 1, and the cross-sectional area of the second core 2 is greater than the cross-sectional area of the first core 1, the first core 1 and the second core 2 all tangent.Second core 2 comprises the crosslinked polyetylene insulated layer 23 of the second conductor 21, second inorganic fire proof material layer 22, second from inside to outside successively, second inorganic fire proof material layer 22 is wrapped in outside the second conductor 21, and the second crosslinked polyetylene insulated layer 23 is wrapped in outside the second inorganic fire proof material layer 22.Glass fiber high-temperature rope 4 is provided with between second core 2 of arbitrary neighborhood.Glass fiber high-temperature rope 4 is all tangent with the second adjacent core 2.

Between the second core 2, be filled with flame resistant filler material 3 wrap up.Fire-retardant inner covering 5 is wrapped in outside flame resistant filler material 3.Lock armo layer 6 is wrapped in outside fire-retardant inner covering 5, and lock armo layer 6 adopts 5000 line aluminium alloy band lock armos.Heat-conducting layer 7 is wrapped in outside lock armo layer 6, is provided with along its fire-retardant particle circumferentially in heat-conducting layer 7.Halogen-free and low-smoke flame-retardant polyolefin external sheath layer 8 is wrapped in outside heat-conducting layer 7.

The high temperature resistant lock armo power cable that the utility model proposes, the first core 1, second core 2 conductor all adopts aluminium alloy conductor, and creep resistance is good, high pliable and tough, high extension, low bounce-back, stable connection; First core 1, second core 2 is equipped with inorganic fire proof material layer, improve the resistance to elevated temperatures of cable, cable adopts halogen-free and low-smoke flame-retardant polyolefin oversheath 8, higher temperature can be born, and harmful Substances Pollution environment can not be produced in hot environment, thus make its environmental-protecting performance more excellent, meet present the advocated environmental protection concept of people; Lock armo layer 6 adopts 5000 line aluminium alloy band lock armos, firm tough, good bandability, and has shielding; Cable is also provided with heat-conducting layer 7, and the heat that cable work produces outwards can be conducted, avoid heat to concentrate on cable center position, resistance to elevated temperatures is good; In heat-conducting layer 7, be also provided with fire-retardant particle, enhance the fire resistance of cable.The utility model resistance to elevated temperatures is good, firm tough, long service life.

The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection range of the present utility model.

Claims

1. a high temperature resistant lock armo power cable, it is characterized in that, comprise first core (1), many second cores (2), flame resistant filler material (3), fire-retardant inner covering (5), lock armo layer (6), heat-conducting layer (7), halogen-free and low-smoke flame-retardant polyolefin external sheath layer (8), wherein:

First core (1) comprises the first conductor (11), the first inorganic fire proof material layer (12), the first crosslinked polyetylene insulated layer (13), first inorganic fire proof material layer (12) is wrapped in the first conductor (11) outside, and the first crosslinked polyetylene insulated layer (13) is wrapped in the first inorganic fire proof material layer (12) outside;

Second core (2) comprises the second conductor (21), the second inorganic fire proof material layer (22), the second crosslinked polyetylene insulated layer (23), second inorganic fire proof material layer (22) is wrapped in the second conductor (21) outside, and the second crosslinked polyetylene insulated layer (23) is wrapped in the second inorganic fire proof material layer (22) outside;

Many second cores (2) circumferentially distribute centered by the first core (1), the cross-sectional area of the second core (2) is greater than the cross-sectional area of the first core (1), gap-fill between the first core (1) and the second core (2) has flame resistant filler material (3), fire-retardant inner covering (5) is wrapped in the first core (1) and the second core (2) outside, lock armo layer (6) is wrapped in fire-retardant inner covering (5) outside, heat-conducting layer (7) is wrapped in lock armo layer (6) outside, halogen-free and low-smoke flame-retardant polyolefin external sheath layer (8) is wrapped in heat-conducting layer (7) outside.

2. high temperature resistant lock armo power cable according to claim 1, is characterized in that, the first conductor (11) and the second conductor (21) all adopt aluminium alloy to make.

3. high temperature resistant lock armo power cable according to claim 1 and 2, is characterized in that, is provided with glass fiber high-temperature rope (4) between second core (2) of arbitrary neighborhood.

4. high temperature resistant lock armo power cable according to claim 1 and 2, is characterized in that, is provided with along its fire-retardant particle circumferentially in heat-conducting layer (7).

5. high temperature resistant lock armo power cable according to claim 1 and 2, is characterized in that, lock armo layer (6) adopts 5000 line aluminium alloy band lock armos.