CN204926869U - Water proof type fireproof cable - Google Patents
Water proof type fireproof cable Download PDFInfo
- Publication number
- CN204926869U CN204926869U CN201520745778.5U CN201520745778U CN204926869U CN 204926869 U CN204926869 U CN 204926869U CN 201520745778 U CN201520745778 U CN 201520745778U CN 204926869 U CN204926869 U CN 204926869U
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- layer
- metallic sheath
- cable
- fire
- flame retardant
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- Expired - Fee Related
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Abstract
The utility model discloses a water proof type fireproof cable, including copper core conductor, phlogopite flame retardant coating, metallic sheath flame retardant coating, crosslinked polyethylene isolation layer, fire -retardant mineral substance filling layer, low smoke halogen free outer sheath layer, the copper core conductor outside is cladding phlogopite flame retardant coating, metallic sheath flame retardant coating in proper order, and the crosslinked polyethylene isolation layer constitutes insulation core, and a plurality of insulation core strand into the cable core, packs the fire -retardant material filling layer in ore deposit in the cable core space, and the crowded package of low smoke and zero halogen outer jacket is in the outside. It directly in the face of insulation core, reaches better fireproof effect to adopt phase separating metallic sheath flame retardant coating can avoid interconnected system package type metallic sheath flame to burn the back.
Description
Technical field
The utility model relates to electric wire field, is specially a kind of water blocking fireproof cable.
Background technology
Flexible fire-proof cable is mostly adopt all-round metallic sheath as main fireprotection layer.The fireproof cable of all-round metallic sheath because sheath is close to outermost non metallic sheath, so generally all inner covering or oxygen barrier layer will be adopted below metallic sheath.Inner covering or oxygen barrier layer are used for protecting insulated wire cores on the one hand, are used on the one hand in addition isolating oxygen.The whole cable external diameter just caused due to the special type of structure bigger than normal.In fire protecting performance, once flame have passed through all-round metal fireproof layer, under the insulated wire cores of inner side is just directly exposed to flame, easy short circuit or short circuit.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of water blocking fireproof cable, adopts phase-splitting metal sheath to replace all-round metal sheath layer to protect insulated wire cores, and to reach better flameproof effect, fire protecting performance reaches completing property of the circuit test of BS6387.
In order to solve the problem, the technical solution of the utility model is: a kind of water blocking fireproof cable, comprise copper core conductor, phlogopite fireprotection layer, metallic sheath fireprotection layer, crosslinked polyethylene separator, fire-retardant mineral-filled layer, low smoke and zero halogen external sheath layer, coated phlogopite fireprotection layer, metallic sheath fireprotection layer successively outside described copper core conductor, crosslinked polyethylene separator forms insulated wire cores, and some bar insulation cores are twisted into cable core, fill ore deposit fire retardant matter packed layer in cable core space, low smoke and zero halogen outer jacket is extruded in outermost.
Described copper core conductor is the transmission conductor of cable, and conductor is adopted and pressed the circular explained hereafter of pressure, and in order to reach good flameproof effect, conductor compacting coefficient is not less than 0.9.Conductor electrical performance and mechanical performance meet GB/T3956-2008 " conductor of cable " and specify requirement.
Described phlogopite fireprotection layer, material adopts gold mica tape.It is wrapped that phlogopite employing is no less than two-layer spiral, and the wrapped rate of putting up is not less than 25%, mechanical performance compound GB/T19666-2005 " fire-retardant and fire-resisting cable general rule " the appendix C regulation of gold mica tape.
Described metallic sheath fireprotection layer, adopts the continuous cladding process of metallic sheath, is extruded in by metal sheath outside phlogopite fireprotection layer.Material as metallic sheath fireprotection layer can adopt copper, aluminium or aluminum alloy material.Phase-splitting metallic sheath fireprotection layer is crucial fire-resistant parts of the present utility model, and due to the effect of fire-retardant mineral-filled layer, this metallic sheath fireprotection layer can protect each bar insulation core preferably.
Described crosslinked polyethylene separator, adopts one-step silane cross-linked polyethylene cable material, is evenly extruded in outside metallic sheath fireprotection layer, forms insulated wire cores.Insulation adopts look mother stock look.
Described fire-retardant mineral-filled layer, adopt mineral material, this mineral material main component comprises: magnesium hydroxide, the compositions such as aluminium hydroxide.Fire-retardant mineral-filled layer adopts the mode of extrusion modling, is closely filled in the middle of some insulated wire cores gaps, plays the effect of fire prevention and isolation oxygen.
Described low smoke and zero halogen external sheath layer, adopts low smoke and zero halogen material.In order to be distinguished with the fire-resisting cable of other routines, low smoke and zero halogen external sheath layer adopts the material of Chinese red.
Adopt the utility model can reach following effect: the utility model adopts phase-splitting metal sheath layer to replace the metal sheath layer of all-round, adds the unfailing performance of cable.The fire-retardant mineral-filled layer of insulated wire cores gap-fill contains a large amount of magnesium hydroxides and aluminium hydroxide, releases a large amount of moisture reduce flame temperature when running into flame combustion.When becoming magnesium oxide and the aluminium oxide of high flame retardant after burning completely, flame temperature after this layer can reduce greatly, avoids sheath directly to contact insulated wire cores.Better to reach fireproof effect.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of water blocking fireproof cable of the utility model structural representation.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
The utility model is followed successively by from inside to outside as shown in Figure 1: copper core conductor 1, phlogopite fireprotection layer 2, metallic sheath fireprotection layer 3, crosslinked polyethylene separator 4, fire-retardant mineral-filled layer 5, low smoke and zero halogen external sheath layer 6.Illustrate as an example with 4 core, 95 squares of the utility model below.
Described copper core conductor 1, adopts 23 single bare copper conductors of 2.35mm.Conductor, through stranded, become to press circular cross-section, presses coefficient and reach more than 0.9.In order to ensure that cable has relatively softness, the external diameter ratio that the pitch of conductor is greater than 18 times.
Described phlogopite fireprotection layer 2, adopt double-deck gold mica tape spiral winding to be wrapped in outside conductor, wrapped large probability is not less than 15%, superconductor direction, mica face.
Described metallic sheath fireprotection layer 3, adopt the aluminium material of high-quality, continued extrusion is in the outside of phlogopite fireprotection layer 2.The thickness of phlogopite fireprotection layer 3 is not less than 1.0mm.
Described crosslinked polyethylene separator 4, adopts one-step silane cross-linked polyethylene material.Insulation color is divided into: red, yellow, blue, green and yellow green.
Described fire-retardant mineral-filled layer 5, adopt fire-retardant mineral material, the filling thickness outside cable core is 1.2mm.Cable core gap is closely filled.
Described low smoke and zero halogen external sheath layer 6, adopts the low-smoke halogen-free polyolefin raw material of Chinese red.Crowded plumber's skill is adopted to be coated on outermost layer.
Claims (2)
1. a water blocking fireproof cable, it is characterized in that: comprise copper core conductor, phlogopite fireprotection layer, metallic sheath fireprotection layer, crosslinked polyethylene separator, fire-retardant mineral-filled layer, low smoke and zero halogen external sheath layer, coated phlogopite fireprotection layer, metallic sheath fireprotection layer successively outside described copper core conductor, crosslinked polyethylene separator forms insulated wire cores, some bar insulation cores are twisted into cable core, and fill ore deposit fire retardant matter packed layer in cable core space, low smoke and zero halogen outer jacket is extruded in outermost.
2. a kind of water blocking fireproof cable according to claim 1, is characterized in that: adopt metallic sheath fireprotection layer to be coated on outside insulated wire cores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745778.5U CN204926869U (en) | 2015-09-24 | 2015-09-24 | Water proof type fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745778.5U CN204926869U (en) | 2015-09-24 | 2015-09-24 | Water proof type fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204926869U true CN204926869U (en) | 2015-12-30 |
Family
ID=54975978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520745778.5U Expired - Fee Related CN204926869U (en) | 2015-09-24 | 2015-09-24 | Water proof type fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204926869U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158122A (en) * | 2016-08-30 | 2016-11-23 | 飞洲集团有限公司 | Flexible mineral fireproof cable |
| CN115376729A (en) * | 2022-09-02 | 2022-11-22 | 青岛胶州湾电缆有限公司 | Flexible isolated form fireproof cable |
-
2015
- 2015-09-24 CN CN201520745778.5U patent/CN204926869U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158122A (en) * | 2016-08-30 | 2016-11-23 | 飞洲集团有限公司 | Flexible mineral fireproof cable |
| CN115376729A (en) * | 2022-09-02 | 2022-11-22 | 青岛胶州湾电缆有限公司 | Flexible isolated form fireproof cable |
| CN115376729B (en) * | 2022-09-02 | 2024-03-22 | 青岛胶州湾电缆有限公司 | Flexible isolation type fireproof 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: 20151230 Termination date: 20180924 |