CN205595110U - Flexible fireproof cable of radial waterproofing type - Google Patents

Abstract

The utility model discloses a flexible fireproof cable of radial waterproofing type, include the cable core that is formed by the one or many fire prevention sinle silk transposition that blocks water, the department is equipped with the filling layer in the space of cable core, and around double -baging high temperature resistant fire -retardant band, crowded package does not have steamed low cigarette flame retardant polyolefin sheath outside high temperature resistant fire -retardant band outside the cable core, block water the fire prevention sinle silk by the conductor, around the package on the conductor 4 8 the inorganic mineral fire resistance and insulation area on layer, crowded package is in the metallic sheath of inorganic mineral fire resistance and insulation outband block water flame retardant coating and crosslinked polyolefin or the low smoke and zero halogen insulated layer constitution of crowded package metallic sheath blocks water the flame retardant coating outside. In this utility model, the cable not only can reach the purpose of fire prevention, can endure spraying of water for a long time moreover and can not lose the fire resistance, and the cable material all is environmental protection material moreover, can not produce harm with human to the environment, and fire prevention cable conductor adopts aluminium alloy material still can save a large amount of copper resources.

Description

A kind of radial waterproofing type flexible fire-proof cable

Technical field

This utility model relates to fireproof electric wire and cable field, uses split-phase to extrude metal to block water the radial waterproofing type flexible fire-proof cable of fireprotection layer particularly to a kind of.

Background technology

Skyscraper of today has become a lot of citizen's routine work, the important place of life, but skyscraper fire extinguishing but becomes an international fire-fighting difficult problem, skyscraper once catches fire after all, building can quickly be closed by dense smoke, formed " stack effect ", the flue gas of more than 800 degrees Celsius runs into any article all can make it burn, the strongest smog and the fierce burning brought thereof, and will have a strong impact on the resident's escape being confined in floor.

The equipment such as fire fighting device in common floor, elevator, illumination guide resident's escape to save oneself when being all used to fire, but big fire can cause electric wire, cable to burn, and after stand-by power supply consumes, these equipment are by a standstill；And electric wire, ignition of cable, not only can accelerate spreading of the intensity of a fire, also will discharge substantial amounts of poison, toxic smoke；If electric wire is exposed charged, in fire, the resident of escape also has Danger Electric shock risk.Series of problems not only affects resident's escape and necessary salvage operation, also can delay the rescue period that fire fighter is valuable.

According to statistics, the frequency of electrical fire and the loss that caused all belong to first of all kinds of fire.According to analysis, wherein accounted for more than half of electrical fire by what circuit caused, even if so reasonably select cable be avoid electrical fire or breaking out of fire also can the seriality powered of Reliable guarantee fire-fighting equipment, and then put out a fire as early as possible, reduce the important step of loss.

The most traditional cable (including fire-retardant, low-smoke low-halogen, low smoke and zero halogen and its corresponding fireproof cable) runs into the spray flame retardant coating of water again and easily makes moist and lose fire resistance when running into fire, and the existence of smog and harmful gas all can be had when catching fire, being burnt or transship and insulate impaired for a long time, all cannot meet fire protection requirement.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that be that a kind of good bending property, radial water-resisting and fire protecting performance are good, a kind of radial waterproofing type flexible fire-proof cable of energy-conserving and environment-protective when simultaneously manufacturing.

The utility model discloses a kind of radial waterproofing type flexible fire-proof cable, the cable core that core of preventing fires including being blocked water by one or more is stranded, it is provided with packed layer in the gap of cable core, outer around heat-resistant fireproof band of double-baging at cable core, extrude halogen-free and low-smoke flame-retardant polyolefin sheathed outside heat-resistant fireproof band；The described fire prevention core that blocks water is by conductor, around the inorganic mineral fire resistant insulation tape wrapped on conductor, and the protective metal shell being extruded in outside inorganic mineral fire resistant insulation tape blocks water fireprotection layer and be extruded in cross-linked polyolefin that protective metal shell blocks water outside fireprotection layer or low smoke and zero halogen insulated thermal insulating layer is constituted.

In this utility model, it is preferable that described conductor is pressed stranded forming by aluminium alloy molded line, and wherein molded line lay configuration presses coefficient up to more than 0.95.

In this utility model, it is preferable that described inorganic mineral fire resistant insulation tape is mica tape or Ceramic silicon rubber composite band.

In this utility model, it is preferable that the described protective metal shell fireprotection layer that blocks water is extruded through high temperature melt by aluminum or aluminum alloy bar and forms.

After using technique scheme, the method have the advantages that

1, conductor material uses aluminium alloy, and cost is compared with copper and can be reduced about 30%, can save again a large amount of copper resource simultaneously；

2, conductor uses and presses the molded line lay configuration of coefficient more than 0.95, compares circle and presses structure and can make insulation and sheath material cost savings more than 15%；

3, the outer wrapped 4-8 layer inorganic mineral fire resistant insulation tape of conductor, compares with common fireproof cable, not only increases fireproofing of cable performance, and electrical insulation properties improves more than 10 times；

4, the protective metal shell fireprotection layer that blocks water uses aluminum or aluminum alloy gold bar to extrude through high temperature melt and form, and this operation compares cost-saved more than 50% with traditional copper sheath；

5, sheath material is environmental protection low-smoke low-halogen or low smoke and zero halogen protective cover material, when breaking out of fire, cable LSZH, to human body fanout free region, and beneficially people's escape；

6, use split-phase to extrude metal to block water fireprotection layer, compared with traditional fireproof cable, have radial water-resisting effect；

7, in this utility model, cable is possible not only to reach fireproof purpose, and the spray of water can be tolerated for a long time without losing fire resistance, and all environment-friendly materials of cable material, environment and the mankind will not produce harm, and fireproof cable conductor uses aluminum alloy materials also can save substantial amounts of copper resource.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment 1；

Fig. 2 is the structural representation of this utility model embodiment 2.

Detailed description of the invention

With instantiation this utility model done below in conjunction with the accompanying drawings and further explains:

Embodiment 1

As shown in Figure 1, a kind of radial waterproofing type flexible fire-proof cable described in the utility model, including the conductor 1 that middle aluminium alloy molded line is stranded, first wrapped 4-8 layer inorganic mineral fire resistant insulation tape 2 on conductor 1, block water fireprotection layer 3 at the outer layer of metal sheath that extrudes again of inorganic mineral fire resistant insulation tape 2, outside protective metal shell blocks water fireprotection layer 3, extrude one layer of cross-linked polyolefin or low smoke and zero halogen insulated thermal insulating layer 4；Then conductor 1, inorganic mineral fire resistant insulation tape 2, protective metal shell block water fireprotection layer 3 and cross-linked polyolefin or low smoke and zero halogen insulated thermal insulating layer 4 constitutes the fire prevention core that blocks water；It is twisted into cable core together with packed layer 5 again by three fire prevention cores that block water；Outer around heat-resistant fireproof band 6 of double-baging at cable core, finally outside band 6, extrude one layer halogen-free and low-smoke flame-retardant polyolefin sheathed 7 again.

Wherein, described inorganic mineral fire resistant insulation tape 2 is mica tape or Ceramic silicon rubber composite band.

The described protective metal shell fireprotection layer 3 that blocks water is extruded through high temperature melt by aluminum or aluminum alloy bar and forms.

Embodiment 2:

As in figure 2 it is shown, the present embodiment difference from Example 1 is: the fire prevention core that blocks water is become single by many, then directly around heat-resistant fireproof band 6 of double-baging outside the single fire prevention core that blocks water, it is not necessary to fill.

In this utility model, cable is possible not only to reach fireproof purpose, and the spray of water can be tolerated for a long time without losing fire resistance, and all environment-friendly materials of cable material, environment and the mankind will not produce harm, and fireproof cable conductor uses aluminum alloy materials also can save substantial amounts of copper resource；And it is that a kind of good bending property, radial water-resisting and fire protecting performance are excellent, a kind of radial waterproofing type flexible fire-proof cable of energy-conserving and environment-protective when simultaneously manufacturing.

This utility model provides a kind of thinking and the method for radial waterproofing type flexible fire-proof cable; the method and the approach that implement this technical scheme are a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.Each ingredient the clearest and the most definite in the present embodiment all can use prior art to be realized.

Claims (5)

1. a radial waterproofing type flexible fire-proof cable, it is characterized in that: include the cable core stranded by one or more fire prevention core that blocks water, packed layer (5) it is provided with in the gap of cable core, outer around heat-resistant fireproof band (6) of double-baging at cable core, outside heat-resistant fireproof band, extrude halogen-free and low-smoke flame-retardant polyolefin sheathed (7)；The described fire prevention core that blocks water, by conductor (1), around the inorganic mineral fire resistant insulation tape (2) wrapped on conductor, is extruded in inorganic mineral fire resistant insulation tape (2) protective metal shell outward and blocks water fireprotection layer (3) and be extruded in cross-linked polyolefin that protective metal shell blocks water outside fireprotection layer or low smoke and zero halogen insulated thermal insulating layer (4) is constituted.

Radial waterproofing type flexible fire-proof cable the most according to claim 1, it is characterised in that: described conductor (1) is pressed stranded forming by aluminium alloy molded line.

Radial waterproofing type flexible fire-proof cable the most according to claim 1, it is characterised in that: described inorganic mineral fire resistant insulation tape (2) is mica tape or Ceramic silicon rubber composite band.

Radial waterproofing type flexible fire-proof cable the most according to claim 1, it is characterised in that: the wrapped number of plies of described inorganic mineral fire resistant insulation tape (2) is 4-8 layer.

Radial waterproofing type flexible fire-proof cable the most according to claim 1, it is characterised in that: the described protective metal shell fireprotection layer (3) that blocks water is extruded through high temperature melt by aluminum or aluminum alloy bar and forms.