CN103886976A - Novel two-core insulation armor flame-retardant cable - Google Patents
Novel two-core insulation armor flame-retardant cable Download PDFInfo
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- CN103886976A CN103886976A CN201410121694.4A CN201410121694A CN103886976A CN 103886976 A CN103886976 A CN 103886976A CN 201410121694 A CN201410121694 A CN 201410121694A CN 103886976 A CN103886976 A CN 103886976A
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Abstract
The invention discloses a novel two-core insulation armor flame-retardant cable which comprises two insulation cores, wherein each insulation core is composed of a conductor and an insulating layer arranged outside the conductor in an extruded mode, the two insulation cores are connected in an extruded mode through a plastic connector and the insulating layers to form a cable core, packing layers are arranged at the positions of gaps of the cable core, a copper wire armor layer is arranged outside the cable core in a braided mode, and an outer sheath is arranged on the outmost layer in an extruded mode. The packing layers are all made of inorganic materials. Due to the adoption of the structure, a good fireproof and heat insulation effect can be realized in a fire disaster, and the insulating layers of the cable are softened without being molten in the fire disaster. The metal armor layer is adopted to bear external force and stabilize the fireproof structure in the cable, so that the materials of the packing layers do not get loose even if the cable is under impact during work and installation, and the reliability of the cable is guaranteed.
Description
Technical field
The present invention relates to a kind of power cable, specifically a kind of novel two core insulation armored flame-retardant cables.
Background technology
Flame resistant cable refers to the cable that can keep certain hour safe operation in flame combustion situation.Fire resistance test is divided A, two kinds of ranks of B by China's standard GB/T 12666.6, and 950 ~ 1000 DEG C of A level flame temperatures continue for fire time 90min, 750 ~ 800 DEG C of B level flame temperatures, continue for fire times 90 min, whole duration of test, sample should bear the load voltage value that product specifies.
Flame resistant cable is widely used in the places relevant with fire safety and fire-extinguishing and lifesaving such as skyscraper, underground railway, undergrond street, large-scale power station and important industrial and mining enterprises.The wrapped mica in existing flame resistant cable employing conductor outside brings and reaches fire-resistant effect, but cable install and work in often follow various rocking and the collision of junk, may make mica tape flame retardant coating become lax, even dissipate, cause cable to lose original flame-retardant function.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of good flame resistance, good insulating, the novel two core insulation armored flame-retardant cables that simple in structure, production cost is low.
The novel two core insulation armored flame-retardant cables of one of the present invention, comprise two insulated wire cores, and described insulated wire cores is made up of conductor and the insulating barrier that is extruded in outside conductor; Between two insulated wire cores, jointly extrude and link together by plastic connecting body and insulating barrier, form cable core; The gap of cable core is provided with packed layer, and cable core weaves copper wire armored layer outward, and outermost layer extrudes oversheath.
As improvement, described packed layer forms by inorganic material is wrapped.
Further improve, described insulating barrier adopts cross-linking polyethylene materials.
Further improve, described plastic connecting body adopts cross-linking polyethylene materials.
Further improve, described oversheath adopts polyolefine material again.
Beneficial effect of the present invention is:
Packed layer in the present invention is made up of inorganic material, and this structure can play good flame retardant effect in fire, makes the insulating barrier of cable in fire, be softened and not melt.Adopt afterwards armour, except bearing External Force Acting, also play fire resistive construction in 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, ensured the reliability of cable.In addition, changed the structure of reason cable core, do not re-used stranded mode, the present invention adopts plastic fastening that the insulating barrier of insulated wire cores is linked together, and forms cable core, has ensured the globality of cable core.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the described novel two core insulation armored flame-retardant cables of one of the present invention, comprise two insulated wire cores, and described insulated wire cores is made up of conductor 1 and the insulating barrier 2 that is extruded in outside conductor 1; Between two insulated wire cores, jointly extrude and link together by plastic connecting body 3 and insulating barrier 2, form cable core; The gap of cable core is provided with packed layer 6, and cable core weaves copper wire armored layer 4 outward, and outermost layer extrudes oversheath 5.
To sum up, described packed layer 3 is made up of rope form inorganic material; Described insulating barrier 2 adopts cross-linking polyethylene materials; Described plastic connecting body adopts cross-linking polyethylene materials; Described oversheath 6 adopts polyolefine material.
The invention provides a kind of novel two core insulation armored flame-retardant cable version and implementation methods; the above is only preferred implementation method of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improve and also should be considered as protection scope of the present invention.
Claims (5)
1. novel two core insulation armored flame-retardant cables, is characterized in that: comprise two insulated wire cores, described insulated wire cores is by conductor (1) and be extruded in outer insulating barrier (2) formation of conductor (1); Between two insulated wire cores, jointly extrude and link together by plastic connecting body (3) and insulating barrier (2), form cable core; The gap of cable core is provided with packed layer (6), and cable core weaves copper wire armored layer (4) outward, and outermost layer extrudes oversheath (5).
2. novel two core insulation armored flame-retardant cables according to claim 1, is characterized in that: described packed layer (6) forms by inorganic material is wrapped.
3. novel two core insulation armored flame-retardant cables according to claim 1, is characterized in that: described insulating barrier (2) adopts cross-linking polyethylene materials.
4. novel two core insulation armored flame-retardant cables according to claim 1, is characterized in that: described plastic connecting body (3) adopts cross-linking polyethylene materials.
5. novel two core insulation armored flame-retardant cables according to claim 1, is characterized in that: described oversheath (6) adopts polyolefine material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121694.4A CN103886976A (en) | 2014-03-28 | 2014-03-28 | Novel two-core insulation armor flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121694.4A CN103886976A (en) | 2014-03-28 | 2014-03-28 | Novel two-core insulation armor flame-retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103886976A true CN103886976A (en) | 2014-06-25 |
Family
ID=50955827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410121694.4A Pending CN103886976A (en) | 2014-03-28 | 2014-03-28 | Novel two-core insulation armor flame-retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103886976A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078143A (en) * | 2014-07-21 | 2014-10-01 | 蒋菊生 | Torsion-resistant cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201331951Y (en) * | 2008-12-15 | 2009-10-21 | 辽宁通用电缆有限公司 | Cold-resistant, anti-aging service entrance cable |
| CN202855408U (en) * | 2012-10-18 | 2013-04-03 | 江苏荣宜电缆有限公司 | Fireproof cable |
| CN103594188A (en) * | 2013-11-21 | 2014-02-19 | 江苏荣宜电缆有限公司 | Armor power cable |
| CN203787156U (en) * | 2014-03-28 | 2014-08-20 | 江苏荣宜电缆有限公司 | Novel two-core insulating armoured anti-flaming cable |
-
2014
- 2014-03-28 CN CN201410121694.4A patent/CN103886976A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201331951Y (en) * | 2008-12-15 | 2009-10-21 | 辽宁通用电缆有限公司 | Cold-resistant, anti-aging service entrance cable |
| CN202855408U (en) * | 2012-10-18 | 2013-04-03 | 江苏荣宜电缆有限公司 | Fireproof cable |
| CN103594188A (en) * | 2013-11-21 | 2014-02-19 | 江苏荣宜电缆有限公司 | Armor power cable |
| CN203787156U (en) * | 2014-03-28 | 2014-08-20 | 江苏荣宜电缆有限公司 | Novel two-core insulating armoured anti-flaming cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078143A (en) * | 2014-07-21 | 2014-10-01 | 蒋菊生 | Torsion-resistant cable |
| CN104078143B (en) * | 2014-07-21 | 2016-09-28 | 国网山东省电力公司临邑县供电公司 | A kind of anti-torsion cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140625 |