CN106057344A - Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable - Google Patents

Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable Download PDF

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Publication number
CN106057344A
CN106057344A CN201610600412.8A CN201610600412A CN106057344A CN 106057344 A CN106057344 A CN 106057344A CN 201610600412 A CN201610600412 A CN 201610600412A CN 106057344 A CN106057344 A CN 106057344A
Authority
CN
China
Prior art keywords
fire
layer
cable
conductor
spray
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
CN201610600412.8A
Other languages
Chinese (zh)
Inventor
张高洋
陆亚军
王勤仙
朱小亮
潘碧霞
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 CHANGFENG CABLE CO Ltd
Original Assignee
JIANGSU CHANGFENG 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 CHANGFENG CABLE CO Ltd filed Critical JIANGSU CHANGFENG CABLE CO Ltd
Priority to CN201610600412.8A priority Critical patent/CN106057344A/en
Publication of CN106057344A publication Critical patent/CN106057344A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/42Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

Abstract

The invention relates to an impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable which comprises a conductor. The conductor is externally wrapped by three sequential layers known as a conductor shielding layer, a crosslinked polyethylene insulation layer and an insulation shielding layer. The insulation shielding layer is externally wrapped by a copper shielding layer or a copper wire and copper strip reversely wrapped winding shielding to form the wire core of medium voltage cable. Three such wire cores are inter-twisted into a cable. When the cable is being made, glass fiber is filled. A mica tape or a ceramic fireproof silicone rubber tape is wrapped. After the cable core is extruded and wrapped by a layer of high oxygen index oxygen barrier layer, the outer layer of the high oxygen index barrier layer is then extruded and coated with a layer of fire clay fire blocking layer and at the same time wrapped by a glass fiber strip or halogen-free or high flame-retardant strip. Finally, a layer of halogen-low low-smoke flame-retardant polyolefin sheath material is wrapped. With a compact and reasonable structure, the cable of the invention is convenient to manufacture. It also serves as a halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable with a long service life and good performances to resist fire, impact and spray.

Description

A kind of impact resistance LSOH anti-flaming of resistance to spray presses fire-resisting cable
Technical field
The present invention relates to power cable technical field, especially a kind of impact resistance LSOH anti-flaming of resistance to spray is pressed fire-resistant Cable.
Background technology
Along with developing rapidly of China's economy, in city, the voltage of electric power system also gradually rises.At present, domestic city High-rise and super-huge building also gets more and more, if these buildings still use 0.6/1kV low voltage distribution, then it supports the use Cable and mounting and installation workload, cable laying space will be the hugest, and the cable laid in building too much, mistake Greatly, also can affect the operation of circuit, bring bigger safety problem.Difficult for solving the actual power of high-rise and super-huge building Topic, presses (6-35kV) power supply in much having started to use.For building, fire safety be most important, need most to pay close attention to and The primary problem solved.At present, in some big and medium-sized cities, it is distinctly claimed public place building, building high-rise, super-huge need to adopt With environmental-protection flame-retardant, fire-resisting cable, with prevention when breaking out of fire, can ensure that supply line normally supplies within the predetermined time Electricity, and toxic and harmful will not be produced because of burning.Therefore, piezoelectricity in a kind of environment-friendly high fire-retardant fire safe type need to be researched and developed Cable.
Midium voltage cable is higher due to the voltage used, and must have conductor shielding, insulate and insulate screen outside the conductor of cable Cover layer;As fire-resisting cable, it is necessary to a flame retardant coating must be applied, to ensure under combustion case, not only fire-resistant, and to have Impact resistance and spray performance, to ensure that cable insulation is drenched affected by weight damage or water under combustion high temperature, thus meet Insulating performance of cable is intact within a certain period of time, still can continue power supply.In existing, known fire-proof medium-voltage cable technology, all deposits In some problems, and it is substantially the midium voltage cable of copper conductor.
Additionally, at published all fire-proof medium-voltage cable conductors all based on copper conductor.The bauxite resource of China is rich at present Richness, and the scarcity that copper resource is very.Owing to internal copper ore resources is substantially close to exhaustion, or cost of winning is too high, 80% copper loss Amount dependence on import, copper valency height becomes the most in the world in addition, makes power circuit cost of investment more and more higher, the resource consumption to copper material The most excessive.And the use of this patent aluminium alloy conductor also can alleviate current copper resource scarcity, aluminium conductor runs unsafe present situation.
Summary of the invention
The applicant is for the shortcoming in above-mentioned existing production technology, it is provided that a kind of impact resistance LSOH anti-flaming of resistance to spray Middle pressure fire-resisting cable, thus make it have that length in service life, fire protecting performance be good and impact resistance, the feature of resistance to spray.
The technical solution adopted in the present invention is as follows:
Pressing fire-resisting cable in a kind of impact resistance LSOH anti-flaming of resistance to spray, including conductor, the outside of described conductor is with three layers altogether The mode squeezed is extruded with conductor shield, crosslinked polyetylene insulated layer and insulation screen successively, outer wrapped at insulation screen Copper strip shielding layer or copper wire are dredged and are reversely wrapped up shielding around adding copper strips, constitute the core of fire-proof medium-voltage cable, and three cores are stranded Stranding, uses glass fibre yarn to fill during stranding, mica tape or ceramic fireproof silicone rubber band are wrapped;Squeeze outside cable core after stranding Wrap a floor height oxygen index (OI) oxygen barrier layer, extrude one layer of fire-proof mud gear fire bed, the most wrapped glass in the outside of high oxygen index (OI) oxygen barrier layer again Fibre ribbons or halogen-free high flame-retardant band;Finally extrude one layer of halogen-free and low-smoke flame-retardant polyolefin sheathed material.
Its further technical scheme is:
Described conductor uses copper conductor or aluminium alloy conductor;
Described conductor is that molded line is stranded or press circular configuration;
Described conductor is the copper conductor and the 8000 of ASTM B800-05 standard-required meeting GB/ T3953-2008 standard-required Series alloys conductor;
Described packing material glass fibre yarn is alkali-free glass fiber yarn;
Described high oxygen index (OI) oxygen barrier layer material therefor oxygen index (OI) is more than 38, when extruding by THICKNESS CONTROL 3~4mm;
Described fire-proof mud gear fire bed when extruding by THICKNESS CONTROL 6~8mm;
Described sheath material is the halogen-free and low-smoke flame-retardant polyolefin sheathed material that oxygen index (OI) is more than 37.
Beneficial effects of the present invention is as follows:
Present configuration is compact, reasonable, easily manufactured, is that one has that length in service life, fire protecting performance be good and impact resistance, resistance to The LSOH anti-flaming fire-proof medium-voltage cable of spray.
Have the further advantage that simultaneously
(1) use aluminum alloy materials as the conductor of midium voltage cable, can preferably replace copper conductor cable, and solve electrician's fine aluminium The problems such as conductor is oxidizable, creep-resistant property is poor, and material cost is relatively low, economic performance is excellent;
(2) conductor uses molded line lay configuration, presses coefficient up to more than 0.95, can reduce conductor diameter 5%, save each operation Raw material usage amount more than 10%;
(3) fire-proof mud that employing company oneself develops keeps off fire bed as cable, fill simultaneously use alkali-free glass fiber yarn and each layer it Between glass band serve again good thermolysis, so this cable is not only by fire resistance test, and effect of dispelling the heat The best, current-carrying capacity of cable is high;
(4) oversheath uses high oxygen index (OI) environmental-protection flame-retardant low-smoke halogen-free polyolefin to extrude, and when meeting fire burning, makes cable in combustion Not dripping after burning, ensure the integrity after cable fire, fire resistance is good, and LSZH, to human body fanout free region, beneficially people Escape.
Accompanying drawing explanation
Fig. 1 is the structural representation (embodiment one) of the present invention.
Fig. 2 is the structural representation (embodiment two) of the present invention.
Wherein: 1, conductor;2, conductor shield;3, crosslinked polyetylene insulated layer;4, insulation screen;5, copper strip shielding Layer;6, glass fibre yarn;7, ceramic fireproof silicone rubber band;8, high oxygen index (OI) oxygen barrier layer;9, fire-proof mud gear fire bed;10, glass Fibre ribbons;11, halogen-free and low-smoke flame-retardant polyolefin sheathed material.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described.
As it is shown in figure 1, the impact resistance LSOH anti-flaming of resistance to spray of the present embodiment is pressed fire-resisting cable, including conductor 1, lead The outside of body 1 is extruded with conductor shield 2, crosslinked polyetylene insulated layer 3 and insulation screen in the way of three-layer co-extruded successively 4, dredge at the outer wrapped copper strip shielding layer 5 of insulation screen 4 or copper wire and reversely wrap up shielding around adding copper strips, constitute fire-resistant middle piezoelectricity The core of cable, three core twisted synthesizing cables, use glass fibre yarn 6 to fill during stranding, mica tape or ceramic fireproof silicone rubber Band 7 is wrapped;Extrude a floor height oxygen index (OI) oxygen barrier layer 8 after stranding outside cable core, extrude one again in the outside of high oxygen index (OI) oxygen barrier layer 8 Layer fire-proof mud gear fire bed 9, the most wrapped glass fibre belt 10 or halogen-free high flame-retardant band;Finally extrude one layer of halogen-free and low-smoke flame-retardant polyolefin Protective cover material 11.
Conductor 1 uses copper conductor or aluminium alloy conductor.
Conductor 1 is stranded for molded line or presses circular configuration.
Conductor 1 is the copper conductor and the 8000 of ASTM B800-05 standard-required meeting GB/ T3953-2008 standard-required Series alloys conductor.
Packing material glass fibre yarn 6 is alkali-free glass fiber yarn.
High oxygen index (OI) oxygen barrier layer 8 material therefor oxygen index (OI) is more than 38, when extruding by THICKNESS CONTROL 3~4mm.
Fire-proof mud gear fire bed 9 when extruding by THICKNESS CONTROL 6~8mm.
Sheath material is the halogen-free and low-smoke flame-retardant polyolefin sheathed material 11 that oxygen index (OI) is more than 37.
Embodiment one
As it is shown in figure 1, a kind of impact resistance LSOH anti-flaming of resistance to spray fire-proof medium-voltage cable of the present invention, it includes centre It is provided with a copper or aluminium alloy conductor 1, conductor is extruded with in the way of three-layer co-extruded conductor shield 2 successively, cross-links and gather Ethylene insulating barrier 3, insulation screen 4, the outer wrapped copper strip shielding of insulation screen or copper wire are dredged and are reversely wrapped up shielding around adding copper strips 5;Conductor 1, conductor shielding, insulating barrier, insulation screen, metal screen layer constitute the core of fire-proof medium-voltage cable;Three cores Twisted synthesizing cable, uses glass fibre yarn to fill 6, mica tape or ceramic fireproof silicone rubber band wrapped 7 during stranding;After stranding A floor height oxygen index (OI) oxygen barrier layer 8 is extruded outside cable core;One layer of fire-proof mud gear fire bed 9, the most wrapped glass is extruded again outside oxygen barrier layer Band or halogen-free high flame-retardant band 10;Finally extrude one layer of halogen-free and low-smoke flame-retardant polyolefin sheathed material 11.
Embodiment 2:
As in figure 2 it is shown, the present embodiment is with embodiment one difference: insulated wire cores is become one from three.
Above description is explanation of the invention, is not the restriction to invention, and limited range of the present invention sees right Requirement, within protection scope of the present invention, can make any type of amendment.

Claims (8)

1. in the impact resistance LSOH anti-flaming of resistance to spray press fire-resisting cable, it is characterised in that: include conductor (1), described in lead The outside of body (1) is extruded with conductor shield (2), crosslinked polyetylene insulated layer (3) and insulation in the way of three-layer co-extruded successively Screen layer (4), dredges at insulation screen (4) the most wrapped copper strip shielding layer (5) or copper wire and reversely wraps up shielding, structure around adding copper strips Become the core of fire-proof medium-voltage cable, three core twisted synthesizing cables, use glass fibre yarn (6) to fill during stranding, mica tape or ceramic Fireproof silicone rubber band (7) is wrapped;Extrude floor height oxygen index (OI) oxygen barrier layer (8) after stranding outside cable core, high oxygen index (OI) every The outside of oxygen layer (8) extrudes one layer of fire-proof mud gear fire bed (9), the most wrapped glass fibre belt (10) or halogen-free high flame-retardant band again;Finally Extrude one layer of halogen-free and low-smoke flame-retardant polyolefin sheathed material (11).
2. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute State conductor (1) and use copper conductor or aluminium alloy conductor.
3. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute Stating conductor (1) is that molded line is stranded or press circular configuration.
4. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute State 8000 series that conductor (1) is copper conductor and the ASTM B800-05 standard-required meeting GB/ T3953-2008 standard-required Aluminium alloy conductor.
5. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute Stating packing material glass fibre yarn (6) is alkali-free glass fiber yarn.
6. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute State high oxygen index (OI) oxygen barrier layer (8) material therefor oxygen index (OI) and be more than 38, when extruding by THICKNESS CONTROL 3~4mm.
7. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute State fire-proof mud gear fire bed (9) when extruding by THICKNESS CONTROL 6~8mm.
8. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute Stating sheath material is the halogen-free and low-smoke flame-retardant polyolefin sheathed material (11) that oxygen index (OI) is more than 37.
CN201610600412.8A 2016-07-28 2016-07-28 Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable Pending CN106057344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610600412.8A CN106057344A (en) 2016-07-28 2016-07-28 Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610600412.8A CN106057344A (en) 2016-07-28 2016-07-28 Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109887667A (en) * 2019-01-15 2019-06-14 安徽天康(集团)股份有限公司 A kind of control cable for flame-retardant fireproof boat and its manufacturing method
CN112578512A (en) * 2019-09-27 2021-03-30 通鼎互联信息股份有限公司 Fire-resistant communication optical cable
CN113096871A (en) * 2021-04-14 2021-07-09 固达电线电缆(集团)有限公司 Processing technology of fire-resistant medium-voltage power cable

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202422835U (en) * 2011-12-30 2012-09-05 兴乐集团有限公司 Heat-insulation type intermediate-pressure fire-resisting cable
CN102682906A (en) * 2012-05-03 2012-09-19 宝胜科技创新股份有限公司 Aluminum-core low-voltage fireproof power cable and manufacture method thereof
KR20140065241A (en) * 2012-11-21 2014-05-29 엘에스전선 주식회사 Fire resistant cable for medium or high voltage and manufacturing method of the same
CN104299714A (en) * 2014-10-15 2015-01-21 中天科技海缆有限公司 Low-smoke zero-halogen medium-voltage fire-resistant power cable
JP2015149145A (en) * 2014-02-05 2015-08-20 東日本旅客鉄道株式会社 power distribution cable and signal system
CN105741936A (en) * 2016-03-24 2016-07-06 江苏建中能源科技有限公司 Fireproof cable
CN105761839A (en) * 2016-04-29 2016-07-13 东莞市民兴电缆有限公司 High-flexibility fireproof cable and preparation method thereof
CN205881558U (en) * 2016-07-28 2017-01-11 江苏长峰电缆有限公司 Shock -resistant resistant spraying does not have steamed low fire -retardant middling pressure fire resisting cable of cigarette

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202422835U (en) * 2011-12-30 2012-09-05 兴乐集团有限公司 Heat-insulation type intermediate-pressure fire-resisting cable
CN102682906A (en) * 2012-05-03 2012-09-19 宝胜科技创新股份有限公司 Aluminum-core low-voltage fireproof power cable and manufacture method thereof
KR20140065241A (en) * 2012-11-21 2014-05-29 엘에스전선 주식회사 Fire resistant cable for medium or high voltage and manufacturing method of the same
JP2015149145A (en) * 2014-02-05 2015-08-20 東日本旅客鉄道株式会社 power distribution cable and signal system
CN104299714A (en) * 2014-10-15 2015-01-21 中天科技海缆有限公司 Low-smoke zero-halogen medium-voltage fire-resistant power cable
CN105741936A (en) * 2016-03-24 2016-07-06 江苏建中能源科技有限公司 Fireproof cable
CN105761839A (en) * 2016-04-29 2016-07-13 东莞市民兴电缆有限公司 High-flexibility fireproof cable and preparation method thereof
CN205881558U (en) * 2016-07-28 2017-01-11 江苏长峰电缆有限公司 Shock -resistant resistant spraying does not have steamed low fire -retardant middling pressure fire resisting cable of cigarette

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109887667A (en) * 2019-01-15 2019-06-14 安徽天康(集团)股份有限公司 A kind of control cable for flame-retardant fireproof boat and its manufacturing method
CN112578512A (en) * 2019-09-27 2021-03-30 通鼎互联信息股份有限公司 Fire-resistant communication optical cable
CN113096871A (en) * 2021-04-14 2021-07-09 固达电线电缆(集团)有限公司 Processing technology of fire-resistant medium-voltage power cable

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