CN209071020U

CN209071020U - Lock armo softness waterproof fireproofing cable

Info

Publication number: CN209071020U
Application number: CN201822152830.2U
Authority: CN
Inventors: 王琥
Original assignee: YUNNAN YUNLAN CABLE (GROUP) CO Ltd
Current assignee: YUNNAN YUNLAN CABLE (GROUP) CO Ltd
Priority date: 2018-12-21
Filing date: 2018-12-21
Publication date: 2019-07-05
Anticipated expiration: 2028-12-21

Abstract

The utility model discloses a kind of lock armo softness waterproof fireproofing cable, including several cores, the single core presses twisted conductor and the refractory insulating layer on the outside of conductor by several and forms；The gap location of the core is filled with radial resistivity water layer；Multiple cores constitute cable core, and axial water blocking layer is surrounded on the outside of cable core；Stone dead wire lock armo layer and external sheath layer are successively surrounded on the outside of the axial direction water blocking layer.For the utility model since the gap location in cable core is filled with radial resistivity water layer, radial resistivity water layer effectively can inhibit moisture radially to penetrate into cable conductor；It is surrounded with axial water blocking layer on the outside of the cable core that multiple cores are constituted, axial water blocking layer can inhibit moisture to penetrate into cable core；By radial with the design that blocks water axially combined, to reach good waterproof effect.In addition, using embossing nonmagnetic metal protective layer to cable core, embossing significantly improves the bending property of cable, increases the flexibility of cable.

Description

Lock armo softness waterproof fireproofing cable

Technical field

The utility model relates to field of cable technology, in particular to a kind of lock armo softness waterproof fireproofing cable.

Background technique

As industrialization, urbanization process are accelerated, the fire incident of all kinds of buildings and public place also frequently occurs, and causes The massive losses of lives and properties.Common cable is after occurring fire, it cannot be guaranteed that route normal power supply, causes elevator, emergency to shine Bright, automatic alarm and disaster relief system etc. can not work normally, and rescue evacuation is difficult.With the raising of people's fire-fighting consciousness, Awake recognizing ensures that distribution line keeps the importance of power supply in fire environment using fireproof cable.Therefore, in distribution In route fire resisting and fireproof cable must be selected according to different purposes.At the same time, in use, there are also a large amount of cables by ground It buries or is placed in outdoor high temperature or high humidity environment.

But waterproof fireproofing cable in the prior art, waterproof effect is poor, or even infiltration enters cable, so as to cause electricity Cable core short circuit, causes fire etc..It is not flexible, and flexibility is poor, and installation is inconvenient, when laying on the corner, uses one After the section time, the stress that crooked position generates will lead to cracking phenomena appearance, the normal operation of route influenced whether when serious, And it must not be without replacement.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of lock armo softness waterproof fireproofing cables, have good Waterproof and fire-proof function, better softness.

In order to solve the above-mentioned technical problem, the technical solution of the utility model are as follows:

A kind of lock armo softness waterproof fireproofing cable, including several cores, the single core are pressed by several Twisted conductor and the refractory insulating layer composition on the outside of conductor；The gap location of the core is filled with radial water-resisting Layer；Multiple cores constitute cable core, and axial water blocking layer is surrounded on the outside of cable core；It is successively wrapped on the outside of the axial direction water blocking layer There are stone dead wire lock armo layer and external sheath layer.

Further, also longitudinal wrap has embossing nonmagnetic metal guarantor between the axial water blocking layer and stone dead wire lock armo layer Sheath.

Further, the radial resistivity water layer is waterproofing rope；The axial direction water blocking layer includes aluminium-plastic tape and poly- second Alkene oversheath, and the polyethylene outer sheath is by being extruded on the inside of aluminium-plastic tape.

Further, the conductor is using the 6th class conductor in GB/T3956-2008.

Further, the refractory insulating layer uses halogen-free high flame-retardant strip lap.

Further, the external sheath layer uses low smoke and zero halogen oversheath.

The utility model has the beneficial effect that

(1) since the gap location in cable core is filled with radial resistivity water layer, radial resistivity water layer can effectively inhibit moisture Radially penetrate into cable conductor；It is surrounded with axial water blocking layer on the outside of the cable core that multiple cores are constituted, axial water blocking layer can press down Moisture processed penetrates into cable core；By radial with the design that blocks water axially combined, to reach good waterproof effect.

(2) embossing nonmagnetic metal protective layer is used to cable core, embossing significantly improves the bending property of cable, increases The flexibility of cable is added.

Detailed description of the invention

Fig. 1 is the utility model cross section structure schematic diagram.

In figure, 1- core, 1a- conductor, 1b- refractory insulating layer, 2- radial resistivity water layer, 3- axial direction water blocking layer, 3a- plastic-aluminum is multiple Crossed belt, 3b- polyethylene outer sheath, 4- embossing nonmagnetic metal protective layer, 5- stone dead wire lock armo layer, 6- external sheath layer.

Specific embodiment

Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.

As shown in Figure 1, a kind of lock armo softness waterproof fireproofing cable, including several cores 1, the single core 1 Press twisted conductor 1a and the refractory insulating layer 1b on the outside of all conductor 1a by several to form, conductor 1a is used Compacted stranded conductor replaces solid conductor, and twisted conductor can increase the flexibility of conductor, and twisted conductor continuous production Property is preferable, can reduce connector quantity；The gap location filling of the core 1 is closely knit radial resistivity water layer 2；Multiple 1 structures of the core At cable core, axial water blocking layer 3 is surrounded on the outside of cable core；3 outside of axial direction water blocking layer is successively surrounded with stone dead wire interlocking armour Fill layer 5 and external sheath layer 6.By adopting the above technical scheme, since the gap location in cable core is filled with radial resistivity water layer 2, diameter Moisture can be effectively inhibited radially to penetrate into cable conductor to water blocking layer 2；Axis is surrounded on the outside of the cable core that multiple cores are constituted To water blocking layer 3, axial water blocking layer 3 can inhibit moisture to penetrate into cable core；By radial with the design that blocks water axially combined, To reach good waterproof effect.

Specifically, it is non-magnetic to be also surrounded with embossing between the axial water blocking layer 3 in the present embodiment and stone dead wire lock armo layer 5 Property coat of metal 4.By welding embossing using 4 longitudinal wrap of nonmagnetic metal protective layer to cable core, embossing significantly improves electricity The bending property of cable increases the flexibility of cable.Coat of metal preferably fusing point in embossing nonmagnetic metal protective layer 4 is high In 1000 DEG C of metal material, further coat of metal is preferably copper sheath, and shielding properties is more excellent.

Specifically, the radial resistivity water layer 2 is waterproofing rope；The axial direction water blocking layer 3 includes aluminium-plastic tape 3a and gathers Ethylene oversheath 3b, and the polyethylene outer sheath 3b is by being extruded on the inside of aluminium-plastic tape 3a.Aluminium-plastic tape 3a is selected as YLY type polyethylene double-sided aluminum plastic composite band, thick 0.32mm is longitudinal to coat, and puts up width greater than 6mm, is carried out by heat gun Welding.

The mechanism that blocks water of the program are as follows: when extruding polyethylene outer sheath 3b, due to the high moderate pressure of polyethylene melt body Effect, the polyethylene film on the surface aluminium-plastic tape 3a and the inner surface of pe sheath 3b are able to adhesion well, to hinder The infiltration for having stopped moisture reaches good block-water effect.

Specifically, the conductor 1a is using the 6th class conductor in GB/T3956-2008.

Specifically, the refractory insulating layer 1b uses halogen-free high flame-retardant strip lap, and it will not be combustion-supporting, burning has not generated Evil gas.

Specifically, the external sheath layer 6 uses low smoke and zero halogen oversheath, with good flame-retardant smoke inhibition and self-extinguishment function Can, also there is Halogen, fire-retardant, higher elongation at break and waterproof performance, and easy to process.

The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.

Claims

1. a kind of lock armo softness waterproof fireproofing cable, it is characterised in that: including several cores (1), the single core (1) press twisted conductor (1a) by several and the refractory insulating layer (1b) on the outside of conductor (1a) forms；It is described The gap location of core (1) is filled with radial resistivity water layer (2)；Multiple cores (1) constitute cable core, and axis is surrounded on the outside of cable core To water blocking layer (3)；Stone dead wire lock armo layer (5) and external sheath layer (6) are successively surrounded on the outside of the axial direction water blocking layer (3).

2. lock armo softness waterproof fireproofing cable according to claim 1, it is characterised in that: the axial direction water blocking layer (3) also longitudinal wrap has embossing nonmagnetic metal protective layer (4) between stone dead wire lock armo layer (5).

3. lock armo softness waterproof fireproofing cable according to claim 1, it is characterised in that: the radial resistivity water layer It (2) is waterproofing rope；The axial direction water blocking layer (3) includes aluminium-plastic tape (3a) and polyethylene outer sheath (3b), and described poly- Ethylene oversheath (3b) is by being extruded on the inside of aluminium-plastic tape (3a).

4. lock armo softness waterproof fireproofing cable according to claim 1, it is characterised in that: the conductor (1a) uses 6th class conductor in GB/T3956-2008.

5. lock armo softness waterproof fireproofing cable according to claim 1, it is characterised in that: the refractory insulating layer (1b) uses halogen-free high flame-retardant strip lap.

6. lock armo softness waterproof fireproofing cable according to claim 1, it is characterised in that: the external sheath layer (6) Using low smoke and zero halogen oversheath.