CN104008794A - Composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable - Google Patents

Composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable Download PDF

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Publication number
CN104008794A
CN104008794A CN201410257912.7A CN201410257912A CN104008794A CN 104008794 A CN104008794 A CN 104008794A CN 201410257912 A CN201410257912 A CN 201410257912A CN 104008794 A CN104008794 A CN 104008794A
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CN
China
Prior art keywords
cable
core
multicore
fire
shielding
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.)
Pending
Application number
CN201410257912.7A
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Chinese (zh)
Inventor
缪建祥
王剑英
钱祖其
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.)
Jiangsu Earth Cable Co Ltd
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Jiangsu Earth Cable Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Earth Cable Co Ltd filed Critical Jiangsu Earth Cable Co Ltd
Priority to CN201410257912.7A priority Critical patent/CN104008794A/en
Publication of CN104008794A publication Critical patent/CN104008794A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable which comprises a cable core. The cable core is composed of a multi-core cable core and two single-core strengthening cores. The multi-core cable core is formed by twisting two insulation cable cores and then wrapping the two insulation cable cores with an inner sheath, a first shielding layer and an outer sheath in an extrusion mode sequentially from inside to outside. The two strengthening cores are the same in structure and are respectively formed by a steel wire rope, a protection layer and an armor layer sequentially from inside to outside. The outer sheath at the outermost layer of the multi-core cable core is connected with each armor layer at the outermost layer of the corresponding single-core strengthening core through a plastic connector. A second shielding layer and a master outer sheath are sequentially arranged outside the cable core. The composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable is simple in structure, convenient to manufacture, low in production cost and high in abrasion resistance; due to the two steel wire ropes outside the outer sheath, the strength of the whole cable is enhanced, and the service life of the cable is prolonged; in addition, by the use of the two shielding layers, the shielding property of the cable is improved.

Description

A kind of compound multicore superhigh intensity shielding waterproof fire-resisting cable
Technical field
The invention belongs to power cable field, be specifically related to a kind of compound multicore superhigh intensity shielding waterproof fire-resisting cable.
Background technology
As everyone knows, fire-retardant and the flame resistance of cable can be in use significance level, fireproof cable has in the past adopted the structures such as the mineral insulations such as magnesium oxide and metallic copper sheath, restriction due to each side, cause continuously big-length to be produced, and can not carry out bending, be not easy to mounting and installation, so there is flexible fire-proof cable, big-length is produced continuously by contrast, cross section is also unrestricted, there is good bending property simultaneously, mounting and installation is also very convenient, fire protecting performance is excellent, fire resistance rating not only meets the regulation in GB GB/T 19666-2005 and rower GA 306.2-2007, also can meet the 650 ℃ of 3h of A level that stipulate in Britain BS6387, 750 ℃ of 3h of B level, 950 ℃ of 3h of C level, the combustion requirements of 950 ℃ of 20min of S level, simultaneously, in burning, can tolerate water spray and mechanical impact.
At present, along with social development, the speed of designed for communications cables Cheng Genggao and transmission frequency, the isolation of insulation builds
Verified to be reduced to permission level be unsuccessful will crosstalk, and at least some known twistings are to comprising the isolation as shield member work to cable, and these interlayers comprise metal insert, and these metal inserts are enclosed in the insulating element of insulation.These traditional insulating elements are made and are assembled more expensive.In addition, these shielding interlayers keep relatively thick, thereby cause cable bulky, in staff is carrying out cable laying process, are easy to destroy outer jacket in laid processes.
In sum, the deficiency that prior art exists, flexible poor, water proofing property is poor, fire resistance is poor, shielding is poor, in the use procedure of cable, easily by crooked and traction arbitrarily, easily causes disconnected core.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide that a kind of flexibility is better, water-and fire-proof is good, shielding is good, can be arbitrarily crooked and draw, the compound multicore superhigh intensity shielding waterproof fire-resisting cable of easily broken core not.
A kind of compound multicore superhigh intensity shielding waterproof fire-resisting cable of the present invention, comprise by a multicore cable core and two cable cores that single core strengthening core forms, described multicore cable core extrudes inner sheath, the first screen and oversheath after being formed by two insulated wire cores pair twists successively from inside to outside again and forms; Two described strengthening core structures are identical, consist of successively from inside to outside steel wire rope, protective layer and armour; The outermost oversheath of described cable core is connected with two outermost armours of strengthening core respectively by plastic fastening; Described cable core is also provided with secondary shielding layer and total oversheath outward successively.
Further improve, described insulated wire cores consists of conductor and the insulating barrier that is extruded in outside conductor.
Further improve, the gap of described cable core is provided with packed layer.
Further improve, two described reinforced relative positions that are positioned at cable core, up and down relatively or left and right relative.
Further improve, described cable core gap is provided with gasket for packing.
Further improve, described insulating barrier consists of multi layer cloud master tape.
Further improve, described plastic fastening is polythene material, after heating, can be sticked together with oversheath and armour.
Beneficial effect of the present invention is:
Compared with prior art, this construction of cable is simple, it is convenient to manufacture, production cost is low, and anti-wear performance is high, by the steel wire rope in oversheath outside, has strengthened the intensity of whole cable, has extended the useful life of cable; At the external one deck oversheath that adds of cable core, can well protect the structure of cable core, not fragile, further extended cable useful life; This cable also has better water-and fire-proof performance; In addition, use 2 strengthening cores, more can strengthen the intensity of cable, make cable core not easily broken, more firm; And use double-deck screen, increased shielding.
Attached accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of compound multicore superhigh intensity shielding waterproof fire-resisting cable of the present invention, comprise by a multicore cable core and two cable cores that single core strengthening core forms, described multicore cable core extrudes inner sheath 3, the first screen 4 and oversheath 5 after being formed by two insulated wire cores pair twists successively from inside to outside again and forms; Two described strengthening core structures are identical, consist of successively from inside to outside steel wire rope 7, protective layer 8 and armour 9; The outermost oversheath 5 of described cable core is connected with two outermost armours 9 of strengthening core respectively by plastic fastening 6; Described cable core is also provided with secondary shielding layer 11 and total oversheath 12 outward successively.
Two described reinforced relative positions that are positioned at cable core, up and down relatively or left and right relative; Described cable core gap is provided with gasket for packing 13; Described insulating barrier 2 consists of multi layer cloud master tape; Described plastic fastening 6 is polythene material, after heating, can be sticked together with oversheath 5 and armour 9.
The invention provides a kind of compound multicore superhigh intensity shielding waterproof fire-resisting cable; 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 improvement also should be considered as protection scope of the present invention.

Claims (7)

1. a compound multicore superhigh intensity shielding waterproof fire-resisting cable, it is characterized in that, comprise by a multicore cable core and two cable cores that single core strengthening core forms, described multicore cable core extrudes inner sheath (3), the first screen (4) and oversheath (5) again and forms after being formed by two insulated wire cores pair twists successively from inside to outside; Two described strengthening core structures are identical, consist of successively from inside to outside steel wire rope (7), protective layer (8) and armour (9); The outermost oversheath of described cable core (5) is connected with two outermost armours of strengthening core (9) respectively by plastic fastening (6); Described cable core is also provided with secondary shielding layer (11) and total oversheath (12) outward successively.
2. compound multicore superhigh intensity shielding waterproof fire-resisting cable according to claim 1, is characterized in that, described insulated wire cores is by conductor (1) and be extruded in outer insulating barrier (2) formation of conductor (1).
3. compound multicore superhigh intensity shielding waterproof fire-resisting cable according to claim 1, is characterized in that, the gap of described cable core is provided with packed layer (10).
4. compound multicore superhigh intensity water-and fire-proof cable according to claim 1, is characterized in that, two described reinforced relative positions that are positioned at cable core, up and down relatively or left and right relative.
5. compound multicore superhigh intensity water-and fire-proof cable according to claim 1, is characterized in that, described cable core gap is provided with gasket for packing (13).
6. compound multicore superhigh intensity water-and fire-proof cable according to claim 1, is characterized in that, described insulating barrier (2) consists of multi layer cloud master tape.
7. compound multicore superhigh intensity water-and fire-proof cable according to claim 1, is characterized in that, described plastic fastening (6) is polythene material.
CN201410257912.7A 2014-06-12 2014-06-12 Composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable Pending CN104008794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410257912.7A CN104008794A (en) 2014-06-12 2014-06-12 Composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410257912.7A CN104008794A (en) 2014-06-12 2014-06-12 Composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable

Publications (1)

Publication Number Publication Date
CN104008794A true CN104008794A (en) 2014-08-27

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104361939A (en) * 2014-11-07 2015-02-18 江苏远方电缆厂有限公司 Three-core high-strength waterproof fiber cable
CN104361944A (en) * 2014-11-07 2015-02-18 江苏远方电缆厂有限公司 Ceramic fireproof flame-retardant power cable
CN104392782A (en) * 2014-11-27 2015-03-04 江苏红峰电缆集团有限公司 Reinforced waterproof cable
CN104766655A (en) * 2015-03-25 2015-07-08 安徽幸福电器电缆有限公司 High temperature resisting and stretching resisting cable
CN105469895A (en) * 2014-09-05 2016-04-06 上海金友金弘电线电缆股份有限公司 Large-span low overhead type DC photovoltaic cable

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1497737A (en) * 1974-07-10 1978-01-12 Felten & Guilleaume Kabelwerk Electric cables with tension-supporting elements
CN201994122U (en) * 2010-12-09 2011-09-28 安徽安邦控制系统有限公司 Self-supporting steel electric cable
CN203423011U (en) * 2013-07-29 2014-02-05 天津六〇九电缆有限公司 Irregularly-shaped data signal towing composite cable
CN204010737U (en) * 2014-06-12 2014-12-10 江苏大地电缆有限公司 A kind of compound multicore superhigh intensity shielding waterproof fire-resisting cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1497737A (en) * 1974-07-10 1978-01-12 Felten & Guilleaume Kabelwerk Electric cables with tension-supporting elements
CN201994122U (en) * 2010-12-09 2011-09-28 安徽安邦控制系统有限公司 Self-supporting steel electric cable
CN203423011U (en) * 2013-07-29 2014-02-05 天津六〇九电缆有限公司 Irregularly-shaped data signal towing composite cable
CN204010737U (en) * 2014-06-12 2014-12-10 江苏大地电缆有限公司 A kind of compound multicore superhigh intensity shielding waterproof fire-resisting cable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105469895A (en) * 2014-09-05 2016-04-06 上海金友金弘电线电缆股份有限公司 Large-span low overhead type DC photovoltaic cable
CN104361939A (en) * 2014-11-07 2015-02-18 江苏远方电缆厂有限公司 Three-core high-strength waterproof fiber cable
CN104361944A (en) * 2014-11-07 2015-02-18 江苏远方电缆厂有限公司 Ceramic fireproof flame-retardant power cable
CN104392782A (en) * 2014-11-27 2015-03-04 江苏红峰电缆集团有限公司 Reinforced waterproof cable
CN104766655A (en) * 2015-03-25 2015-07-08 安徽幸福电器电缆有限公司 High temperature resisting and stretching resisting cable

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Application publication date: 20140827