CN202855408U - Fireproof cable - Google Patents
Fireproof cable Download PDFInfo
- Publication number
- CN202855408U CN202855408U CN 201220531808 CN201220531808U CN202855408U CN 202855408 U CN202855408 U CN 202855408U CN 201220531808 CN201220531808 CN 201220531808 CN 201220531808 U CN201220531808 U CN 201220531808U CN 202855408 U CN202855408 U CN 202855408U
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- CN
- China
- Prior art keywords
- layer
- cable
- fireproof
- fire
- insulation layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a fireproof cable. The fireproof cable comprises a cable core prepared by stranding a plurality of wire cores, wherein the wire core comprises a central conductor, and a fireproof layer and an insulation layer which are arranged outside the conductor, gaps of the cable core and an external portion are respectively provided with a filling layer, and an internal protection layer, a thermal insulation layer, an armored layer and an external protection layer are arranged outside the filling layer in order. According to the fireproof cable, the filling layer is prepared by wrapping rope-like inorganic material; the thermal insulation layer is prepared by two layers of high flame retardation glass cloth belts and composite mica paper which is pasted and clamped between the two layers of the high flame retardation glass cloth belts; the dual-check structure can have great fireproof heat insulation effects in a fire disaster, so the insulation layer of the cable is softened and can not be melted in the fire disaster; and the armored layer is utilized, so the armored layer can not only bear external force, but also has functions of fireproof structure stabilizing in the cable and fire insulation; even when the cable is impacted during a work and mounting process, materials of the filling layer and the thermal insulation layer can not loose, so reliability of the cable is guaranteed.
Description
Technical field
The utility model relates to a kind of power cable, specifically a kind of fire-resisting cable.
Background technology
Fire-resisting cable refers to can keep the cable of certain hour safe operation in the flame combustion situation.China's standard GB/T 12666.6 divides A, B two kinds of ranks fire resistance test, and 950 ~ 1000 ℃ of A level flame temperatures continue for fire time 90min, 750 ~ 800 ℃ of B level flame temperatures, continue for fire times 90 min, whole duration of test, sample should bear the load voltage value of product regulation.
Fire-resisting cable is widely used in skyscraper, underground railway, undergrond street, large-scale power station and the important places relevant with fire safety and fire-extinguishing and lifesaving such as industrial and mining enterprises.The wrapped mica in existing fire-resisting cable employing conductor outside brings and reaches fire-resistant effect, but cable install and work in often follow various collisions of rocking with junk, may make the mica tape flame retardant coating become lax, even dissipate, cause cable to lose original fire-resistant function.
The utility model content
Technical problem to be solved in the utility model provides the good cable of a kind of fire resistance.
A kind of fire-resisting cable described in the utility model, it comprises the cable core that is twisted into by some cores, described core is comprised of the conductor of centre and flame retardant coating and the insulating barrier that is arranged on outside the conductor, slit and outside at cable core are provided with packed layer, outside packed layer, set gradually sheath, thermal insulation layer, armour and outer jacket.
As improvement, packed layer thickness is 1.5-2.5mm.
Packed layer in the utility model is made by the rope form inorganic material is wrapped, and thermal insulation layer becomes mica paper to consist of by sticking clamping in the middle of the two-layer high flame retardant glass strap, this double insurance structure can play good refractory heat-insulating effect in fire, so that the insulating barrier of cable is softened in fire and does not melt.Adopt afterwards armour, except bearing External Force Acting, also play fire resistive construction in the firm cable and the effect of fire insulation, even impacted in work with in installing, also can not cause loose the holding of material of packed layer and thermal insulation layer, guaranteed the reliability of cable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of fire-resisting cable of the present utility model, it mainly comprises the cable core that is twisted into by some cores, wherein core is comprised of the conductor 1 of centre and flame retardant coating 2 and the insulating barrier 3 that is arranged on outside the conductor, slit and outside at cable core are provided with packed layer 4, outside packed layer 4, set gradually sheath 5, thermal insulation layer 6, armour 7 and outer jacket 8.Packed layer 4 forms by the rope form inorganic material is wrapped, and thermal insulation layer 6 becomes mica paper to consist of by sticking clamping in the middle of the two-layer high flame retardant glass strap.
Claims (2)
1. fire-resisting cable, it is characterized in that: comprise the cable core that is twisted into by some cores, described core is comprised of the conductor (1) of centre and flame retardant coating (2) and the insulating barrier (3) that is arranged on outside the conductor, slit and outside at cable core are provided with packed layer (4), set gradually sheath (5), thermal insulation layer (6), armour (7) and outer jacket (8) outside packed layer (4).
2. fire-resisting cable according to claim 2, it is characterized in that: described packed layer (4) thickness is 1.5-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220531808 CN202855408U (en) | 2012-10-18 | 2012-10-18 | Fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220531808 CN202855408U (en) | 2012-10-18 | 2012-10-18 | Fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202855408U true CN202855408U (en) | 2013-04-03 |
Family
ID=47986579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220531808 Expired - Fee Related CN202855408U (en) | 2012-10-18 | 2012-10-18 | Fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202855408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103886976A (en) * | 2014-03-28 | 2014-06-25 | 江苏荣宜电缆有限公司 | Novel two-core insulation armor flame-retardant cable |
| CN105405513A (en) * | 2015-12-08 | 2016-03-16 | 江苏荣宜电缆有限公司 | Self-bearing tensile wind energy power cable |
-
2012
- 2012-10-18 CN CN 201220531808 patent/CN202855408U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103886976A (en) * | 2014-03-28 | 2014-06-25 | 江苏荣宜电缆有限公司 | Novel two-core insulation armor flame-retardant cable |
| CN105405513A (en) * | 2015-12-08 | 2016-03-16 | 江苏荣宜电缆有限公司 | Self-bearing tensile wind energy power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20201018 |