CN208077662U - A kind of extruded insulation fireproof power cable - Google Patents

A kind of extruded insulation fireproof power cable Download PDF

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Publication number
CN208077662U
CN208077662U CN201820352566.4U CN201820352566U CN208077662U CN 208077662 U CN208077662 U CN 208077662U CN 201820352566 U CN201820352566 U CN 201820352566U CN 208077662 U CN208077662 U CN 208077662U
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China
Prior art keywords
layer
outside
inhibiting tape
tape wrapping
copper strip
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Active
Application number
CN201820352566.4U
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Chinese (zh)
Inventor
卢世高
管海雷
王高
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANCHANG ANTE CABLE CO Ltd
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NANCHANG ANTE CABLE CO Ltd
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Priority to CN201820352566.4U priority Critical patent/CN208077662U/en
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Abstract

The utility model discloses a kind of extruded insulation fireproof power cables, including conductor thread core, copper strip shielding layer, inhibiting tape wrapping layer and oversheath;The conductor thread core is made of more wire bodies and is provided with three groups, it is provided with the first inhibiting tape wrapping layer on the outside of three groups of conductor thread cores after package copper strip shielding layer, first inhibiting tape wrapping layer is provided with alkali-free glass wool filled layer at the position alternate with copper strip shielding layer, it is provided with separation sleeve on the outside of the first inhibiting tape wrapping layer, it is enclosed with fire resisting separation layer on the outside of separation sleeve, the second inhibiting tape wrapping layer is wound on the outside of the fire resisting separation layer.The utility model is novel in design, and the fire resisting separation layer of setting is extruded by ceramic low-smoke halogen-free polyolefin refractory matter, and hard ceramic hard shell is produced under flame calcination or hot conditions, and hard shell not melting is not dripped, and has good heat-insulated fire insulation effect.

Description

A kind of extruded insulation fireproof power cable
Technical field
The utility model is related to a kind of cable, specifically a kind of extruded insulation fireproof power cable.
Background technology
Cable is typically the conductor thread core for the similar cord-like being twisted by single or multiple conducting wires, outside conductor thread core Extruded insulation, entire outside are surrounded by the coating (i.e. protective coverings of cable) of height barrier propterty.With the continuous hair of China's economy Exhibition, the important job facilities such as subway, tunnel and skyscraper, the densely populated places occasion such as large supermarket, public arena, power load Very big, cable laying is very intensive, and there are fire hazard, common cable can not ensure reliable under Fire Conditions without fire resistance It is powered.
Utility model content
The purpose of this utility model is to provide a kind of extruded insulation fireproof power cables, to solve in above-mentioned background technology The problem of proposition.
To achieve the above object, the utility model provides the following technical solutions:
A kind of extruded insulation fireproof power cable, including conductor thread core, copper strip shielding layer, the first inhibiting tape wrapping layer and outer Sheath;The conductor thread core is made of more wire bodies and is provided with three groups, wraps up outside three groups of conductor thread cores after copper strip shielding layer Side is provided with the first inhibiting tape wrapping layer, and the first inhibiting tape wrapping layer is provided with alkali-free glass at the position alternate with copper strip shielding layer Glass silk filled layer is provided with separation sleeve on the outside of the first inhibiting tape wrapping layer, fire resisting separation layer is enclosed on the outside of separation sleeve, The fire resisting separation layer is extruded by ceramic low-smoke halogen-free polyolefin refractory matter, is wound on the outside of the fire resisting separation layer Second inhibiting tape wrapping layer.
As further program of the utility model:Between conductor thread core and copper strip shielding layer described in every group from inside to outside according to It is secondary to be provided with conductor shield, insulating layer and insulation screen.
As the utility model further scheme:It is provided with armor, armour on the outside of the second inhibiting tape wrapping layer It fills layer outer sheath and is equipped with oversheath.
As the utility model further scheme:The oversheath is made of LSOH anti-flaming polythene material.
Compared with prior art, the utility model has the beneficial effects that:The utility model is novel in design, the resistance to fire screen of setting Absciss layer is extruded by ceramic low-smoke halogen-free polyolefin refractory matter, and hard pottery is produced under flame calcination or hot conditions Porcelain hard shell, hard shell not melting are not dripped, and there is good heat-insulated fire insulation effect, the utility model to be set using proprietary structure Meter, it is ensured that external heat will not be passed to inside cable core cable in the event of an accident, even if fire occurs it is also ensured that absolutely The insulation effect of edge layer, it is ensured that the operation that cable can be safe and reliable within the regular hour wins preciousness for fire-fighting and rescue Time.
Description of the drawings
Fig. 1 is the structural schematic diagram of extruded insulation fireproof power cable.
In figure:1- conductor thread cores, 2- conductor shields, 3- insulating layers, 4- insulation screens, 5- copper strip shieldings layer, 6- without Alkali glass silk filled layer, the first inhibiting tapes of 7- wrapping layer, 8- separation sleeves, 9- fire resistings separation layer, the second inhibiting tapes of 10- wrapping layer, 11- armors, 12- oversheaths.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the utility model embodiment, a kind of extruded insulation fireproof power cable, including conductor thread core 1, Copper strip shielding layer 5, the first inhibiting tape wrapping layer 7 and oversheath 12;The conductor thread core 1 is made and is provided with by more wire bodies Three groups, be disposed with from inside to outside between every group of conductor thread core 1 and copper strip shielding layer 5 conductor shield 2, insulating layer 3 and absolutely Edge shielded layer 4, conductor shield 2 can eliminate interfering with each other between three groups of conductor thread cores 1, three groups after package copper strip shielding layer 5 1 outside of conductor thread core is provided with the first inhibiting tape wrapping layer 7, the first inhibiting tape wrapping layer 7 position alternate with copper strip shielding layer 5 Place is provided with alkali-free glass wool filled layer 6, and the first inhibiting tape wrapping layer 7 has a high flame retardant type, first inhibiting tape around The outside of covering 7 is provided with separation sleeve 8, and 8 outside of separation sleeve is enclosed with fire resisting separation layer 9, and fire resisting separation layer 9 is by the low cigarette of ceramic Halogen-free polyolefin refractory matter extrudes, and hard ceramic hard shell is produced under flame calcination or hot conditions, hard shell is not Melting is not dripped, and has good heat-insulated fire insulation effect, it is wrapped that the outside of the fire resisting separation layer 9 is wound with the second inhibiting tape Layer 10,10 outside of the second inhibiting tape wrapping layer are provided with armor 11, and 11 can effectively protect cable of armor will not be by the external world Mechanical force is destroyed or by chemical atmospheres corrosion, and 11 outer sheath of armor is equipped with oversheath 12, and oversheath 12 is by LSOH anti-flaming Polythene material is made.
The operation principle of the utility model is:Cable conductor core through interior screen, insulation and external screen it is three-layer co-extruded after, through stretched wire Formula is crosslinked pipe nitrogen, high-temperature dry-type crosslinking, and it is 90 DEG C to make cable conductor nominal operating temperature, and (duration is up to when short-circuit 5s) maximum temperature of cable conductor is 250 DEG C.Fire resisting separation layer is extruded by ceramic low-smoke halogen-free polyolefin refractory matter, Hard ceramic hard shell is produced under flame calcination or hot conditions, hard shell not melting is not dripped, and is had good heat-insulated The rated voltage of fire insulation effect, the cable is 6kV to 35kv.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation Involved claim.In addition, it should be understood that although this specification is described in terms of embodiments, but it is not each real It applies mode only to contain an independent technical solution, this description of the specification is merely for the sake of clarity, this field skill Art personnel should consider the specification as a whole, and the technical solutions in the various embodiments may also be suitably combined, form ability The other embodiment that field technique personnel are appreciated that.

Claims (4)

1. a kind of extruded insulation fireproof power cable, including conductor thread core (1), copper strip shielding layer (5), the first inhibiting tape wrapping layer (7) and oversheath (12);The conductor thread core (1) is made of more wire bodies and is provided with three groups, after wrapping up copper strip shielding layer (5) Three groups of conductor thread cores (1) on the outside of be provided with the first inhibiting tape wrapping layer (7), the first inhibiting tape wrapping layer (7) and copper strip shielding Layer (5) is provided with alkali-free glass wool filled layer (6) at alternate position, which is characterized in that the first inhibiting tape wrapping layer (7) Outside be provided with separation sleeve (8), be enclosed with fire resisting separation layer (9) on the outside of separation sleeve (8), the fire resisting separation layer (9) is by making pottery Porcelain low-smoke halogen-free polyolefin refractory matter extrudes, and it is wrapped to be wound with the second inhibiting tape on the outside of the fire resisting separation layer (9) Layer (10).
2. a kind of extruded insulation fireproof power cable according to claim 1, which is characterized in that conductor thread core described in every group (1) conductor shield (2), insulating layer (3) and insulation screen are disposed with from inside to outside between copper strip shielding layer (5) (4)。
3. a kind of extruded insulation fireproof power cable according to claim 1, which is characterized in that second inhibiting tape around Armor (11) is provided on the outside of covering (10), armor (11) outer sheath is equipped with oversheath (12).
4. a kind of extruded insulation fireproof power cable according to claim 1, which is characterized in that the oversheath (12) by LSOH anti-flaming polythene material is made.
CN201820352566.4U 2018-03-15 2018-03-15 A kind of extruded insulation fireproof power cable Active CN208077662U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820352566.4U CN208077662U (en) 2018-03-15 2018-03-15 A kind of extruded insulation fireproof power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820352566.4U CN208077662U (en) 2018-03-15 2018-03-15 A kind of extruded insulation fireproof power cable

Publications (1)

Publication Number Publication Date
CN208077662U true CN208077662U (en) 2018-11-09

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CN201820352566.4U Active CN208077662U (en) 2018-03-15 2018-03-15 A kind of extruded insulation fireproof power cable

Country Status (1)

Country Link
CN (1) CN208077662U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110176329A (en) * 2019-06-13 2019-08-27 花振强 A kind of flame retardant cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110176329A (en) * 2019-06-13 2019-08-27 花振强 A kind of flame retardant cable

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