CN106098224A - Aluminium sheath extrudes mineral insulated cable continuously - Google Patents

Aluminium sheath extrudes mineral insulated cable continuously Download PDF

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Publication number
CN106098224A
CN106098224A CN201610758383.8A CN201610758383A CN106098224A CN 106098224 A CN106098224 A CN 106098224A CN 201610758383 A CN201610758383 A CN 201610758383A CN 106098224 A CN106098224 A CN 106098224A
Authority
CN
China
Prior art keywords
aluminium sheath
insulated cable
extrudes
mineral insulated
cable continuously
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
CN201610758383.8A
Other languages
Chinese (zh)
Inventor
吴浠铷
杨阳
许兴刚
郭瑞
徐晓峰
邹志波
丁忠海
宋元威
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.)
FEIZHOU GROUP CO LTD
Original Assignee
FEIZHOU GROUP 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 FEIZHOU GROUP CO LTD filed Critical FEIZHOU GROUP CO LTD
Priority to CN201610758383.8A priority Critical patent/CN106098224A/en
Publication of CN106098224A publication Critical patent/CN106098224A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC 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
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/04Flexible cables, conductors, or cords, e.g. trailing cables
    • HELECTRICITY
    • H01ELECTRIC 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
    • H01B7/292Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • HELECTRICITY
    • H01ELECTRIC 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

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  • Insulated Conductors (AREA)

Abstract

The invention discloses a kind of aluminium sheath and extrude mineral insulated cable continuously, core including many mutually insulateds, each described core includes the first sealing coat, metal level, the second sealing coat, mineral insulation and conductor bundle the most successively, each described core is all wrapped in same restrictive coating, it is filled with fireprotection layer in gap between described restrictive coating and each described core, described fireprotection layer is wrapped with non-woven fabrics, and described non-woven fabrics is wrapped with restrictive coating.Fire resistance period of the present invention is long, bears flame temperature height, and cable can bear a certain degree of water spray and shock while bearing fire.

Description

Aluminium sheath extrudes mineral insulated cable continuously
Technical field
The present invention relates to a kind of cable, particularly relate to a kind of aluminium sheath and extrude mineral insulated cable continuously.
Background technology
Existing normal cable is only mainly in view of its current loading and insulating capacity, considers fire resistance property few, existing It is the highest that some fire-resisting cables bear flame temperature, is usually no more than 800 DEG C, and fire resistance period is the longest, the most also less than 2 hours, More it is difficult to while bearing fire bear the various complicated states such as water spray and shock, is difficult to maintain when breaking out of fire accident Certain normal working hours, it is impossible to the process for fire incident gains time, it is difficult to continue to ensure the people under Fire Conditions The security of the lives and property.
Summary of the invention
Present invention aim to address that current normal cable fire resistance property is short of, cannot bear during breaking out of fire accident simultaneously Flame, spray water, the technical problem of the situation such as shock.
For realizing above goal of the invention, the present invention provides a kind of aluminium sheath to extrude mineral insulated cable continuously, including The core of many mutually insulateds, each described core include the most successively the first sealing coat, metal level, the second sealing coat, Mineral insulation and conductor bundle, each described core is all wrapped in same restrictive coating, between described restrictive coating and each described core Gap in be filled with fireprotection layer, described fireprotection layer is wrapped with non-woven fabrics, and described non-woven fabrics is wrapped with restrictive coating.
Further, described first sealing coat is ceramic fireproof composite band.
Further, described metal level is seamless aluminium sheath, is isolated by band, institute outside described seamless aluminium sheath Stating band is ceramic fireproof composite band.
Further, described second sealing coat is crosslinked polyethylene.
Further, described mineral insulation is ceramic fireproof composite band and gold mica tape.
Further, described conductor bundle is copper conductor.
Further, described restrictive coating is halogen-free and low-smoke flame-retardant polyolefin.
Further, described fireprotection layer is by the composite ceramic soil material system as primary raw material with magnesium hydroxide or aluminium hydroxide Become.
Further, described fire-resistant inserts is Halogen packing.
Compared with prior art, the invention has the beneficial effects as follows:
Under normal usage, mineral insulation and the second sealing coat all have good insulation effect to the cable of the present invention, Second sealing coat can prevent in fireprotection layer the lacking in the composite ceramic soil material as primary raw material with magnesium hydroxide or aluminium hydroxide Amount moisture is on the gold mica tape in mineral insulation and the impact of the insulating properties of ceramic fireproof composite band.Seamless aluminum protects Set, such as aluminum pipe, has pliable and tough and armouring effect concurrently, can keep the flexibility that cable is good, also can increase the overall mechanicalness of cable Can, make cable have under flame condition the most waterproof, fire prevention, anticollision effect;When normally using, cable entirety has very Good flexibility, fireprotection layer is thickness muddy, and convenient processing, cable length can be not limited;The material of restrictive coating is ring Protect halogen-free and low-smoke flame-retardant polyolefin, meet the requirements such as RoHS;Under flame condition, the first sealing coat and restrictive coating can disappear, will not Producing toxic smoke, ceramic fireproof composite band can be converted into sintering pottery, jointly plays insulating effect with gold mica tape, fire prevention Layer is also converted to have heat insulation, fire prevention, waterproof porcelain tube, even if in also can guarantee that cable under conditions of flame temperature 950 DEG C The temperature in portion, especially aluminum pipe is less than 600 DEG C, and aluminum pipe will not be melted, and also has certain anticollision effect simultaneously, these Jointly guarantee that cable normally can use in certain time;It addition, seamless aluminium tubing has the effect of armouring, shielding, earth lead, this electricity Cable, after by flame calcination, is immersed in the water and still can normally use a period of time;Make owing to have employed composite ceramic soil material Fireprotection layer, under Fire Conditions, the conductor wire core of cable can be pacified in, fireproof porcelain tube heat insulation having of being formed by fireprotection layer So work so that this cable, while conformance with standard BS 6387-1994, also can meet up-to-date fire-protection standard BS 8491- The requirement of 2008 and BS 6387-2013, i.e. remains to bear combustion in 2 hours at 830~870 DEG C under load 0.6/1kV working condition Burning, fire duration 10min starts impact, impacts once every 10min, 5min before off-test, starts water spray, sprays every 60s Once, spray water water persistent period 5s every time, can keep normal work.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
In figure, the first sealing coat 1;Mineral insulation 2;Second sealing coat 3;Conductor bundle 4;Fire-resistant inserts 5;Metal level 6; Fireprotection layer 7;Restrictive coating 8;Non-woven fabrics 9.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the aluminium sheath of the present invention extrudes mineral insulated cable continuously, including the line of many mutually insulateds Core, each core includes the first sealing coat 1, mineral insulation the 2, second sealing coat 3 and conductor bundle 4, each core the most successively All it is wrapped in same restrictive coating 8, in the gap between restrictive coating 8 and each core, is filled with fireprotection layer 7, fireprotection layer 7 outer wrapping Non-woven fabrics 9, non-woven fabrics 9 is had to be wrapped with restrictive coating 8.
Preferably, the first sealing coat 1 is ceramic fireproof composite band.
Preferably, mineral insulation 2 is ceramic fireproof composite band and gold mica tape.
Preferably, the second sealing coat 3 is crosslinked polyethylene.
Preferably, conductor bundle 4 is copper conductor.
Preferably, metal level 6 is seamless aluminium sheath, and seamless aluminium sheath is isolated by band, and band is pottery chemoprevention The fire-resistant composite band of fire.
Preferably, restrictive coating 8 is halogen-free and low-smoke flame-retardant polyolefin.
Preferably, fireprotection layer 7 is made up of the composite ceramic soil material as primary raw material with magnesium hydroxide or aluminium hydroxide.
Preferably, fire-resistant inserts 5 is Halogen packing.
This exemplary fiber optic cable as shown in Figure 1 is quad, and the sectional area of three phase lines and a center line is 6mm, Voltage specification 0.6/1kV, its manufacturing process flow is as follows, and every procedure is all tested after terminating, and checks under qualified just entrance Procedure:
Under normal usage, mineral insulation 2 and the second sealing coat 3 all have well insulation to the cable of the present invention Effect, the second sealing coat 3 can prevent in fireprotection layer the composite ceramic soil material as primary raw material with magnesium hydroxide or aluminium hydroxide In a small amount of moisture on the gold mica tape in mineral insulation 2 and the impact of the insulating properties of ceramic fireproof composite band. Seamless aluminium sheath 6, such as aluminum pipe, has pliable and tough and armouring effect concurrently, can keep the flexibility that cable is good, also can increase the whole of cable Body mechanical performance, make cable have under flame condition the most waterproof, fire prevention, anticollision effect;When normally using, cable is whole Body has good flexibility, and fireprotection layer 7, in thickness muddy, is conveniently processed, and cable length can be not limited, but when long Between contact under air conditions, fireprotection layer 7 will slowly harden, thus loses flexibility;The material of restrictive coating 8 is the low cigarette of environment friendly non-halogen Fire retardant polyolefin, meets the requirements such as RoHS;Under flame condition, the first sealing coat 1 and restrictive coating 8 can disappear, and will not produce toxic smoke, Ceramic fireproof composite band can be converted into sintering pottery, jointly plays insulating effect with gold mica tape, and fireprotection layer 7 also converts For there is heat insulation, fire prevention, waterproof porcelain tube, even if also can guarantee that inside cable, especially under conditions of flame temperature 950 DEG C The temperature of aluminum pipe is less than 600 DEG C, also has certain anticollision effect simultaneously, and these guarantee that cable can be in the short time jointly Normal use;It addition, seamless aluminium tubing 6 has the effect of armouring, shielding, earth lead, this cable, after by flame calcination, is immersed in the water Still a period of time can normally be used;It is made for fireprotection layer 7, cable under Fire Conditions owing to have employed composite ceramic soil material Conductor wire core can work in, fireproof porcelain tube heat insulation having of being formed by fireprotection layer 7 safely so that this cable is meeting mark While quasi-BS 6387-1994, also can meet up-to-date fire-protection standard BS 8491-2008 and the requirement of BS 6387-2013, i.e. Remaining to bear burning in 2 hours at 830~870 DEG C under load 0.6/1kV working condition, fire duration 10min starts impact, often Impact once every 10min, 5min before off-test, start water spray, spray water once every 60s, every time water spray persistent period 5s, energy Keep normal work.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.

Claims (9)

1. aluminium sheath extrudes mineral insulated cable continuously, it is characterised in that include the core of many mutually insulateds, each described Core includes the first sealing coat, metal level, the second sealing coat, mineral insulation and conductor bundle the most successively, each described Core is all wrapped in same restrictive coating, is filled with fireprotection layer in the gap between described restrictive coating and each described core, described Fireprotection layer is wrapped with non-woven fabrics, and described non-woven fabrics is wrapped with restrictive coating.
2. aluminium sheath as claimed in claim 1 extrudes mineral insulated cable continuously, it is characterised in that described first isolation Layer is ceramic fireproof composite band.
3. aluminium sheath as claimed in claim 1 extrudes mineral insulated cable continuously, it is characterised in that described metal level is Seamless aluminium sheath, is isolated by band outside described seamless aluminium sheath, and described band is ceramic fireproof composite band.
4. aluminium sheath as claimed in claim 1 extrudes mineral insulated cable continuously, it is characterised in that described second isolation Layer is crosslinked polyethylene.
5. aluminium sheath as claimed in claim 1 extrudes mineral insulated cable continuously, it is characterised in that described mineral insulation Layer is ceramic fireproof composite band and gold mica tape.
6. aluminium sheath as claimed in claim 1 extrudes mineral insulated cable continuously, it is characterised in that described conductor bundle is Copper conductor.
7. aluminium sheath as claimed in claim 1 extrudes mineral insulated cable continuously, it is characterised in that described restrictive coating is Halogen-free and low-smoke flame-retardant polyolefin.
8. aluminium sheath as claimed in claim 1 extrudes mineral insulated cable continuously, it is characterised in that described fireprotection layer by With magnesium hydroxide or aluminium hydroxide, the composite ceramic soil material as primary raw material is made.
9. aluminium sheath as claimed in claim 1 extrudes mineral insulated cable continuously, it is characterised in that described fire-resistant filling Material is Halogen packing.
CN201610758383.8A 2016-08-30 2016-08-30 Aluminium sheath extrudes mineral insulated cable continuously Pending CN106098224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610758383.8A CN106098224A (en) 2016-08-30 2016-08-30 Aluminium sheath extrudes mineral insulated cable continuously

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610758383.8A CN106098224A (en) 2016-08-30 2016-08-30 Aluminium sheath extrudes mineral insulated cable continuously

Publications (1)

Publication Number Publication Date
CN106098224A true CN106098224A (en) 2016-11-09

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107622819A (en) * 2017-09-30 2018-01-23 上海朗达电缆(集团)有限公司 One kind fire prevention computer cable
CN107945947A (en) * 2017-12-31 2018-04-20 无锡江南电缆有限公司 One kind block water heat absorption electric wire
CN108538480A (en) * 2018-03-20 2018-09-14 北京市天华伟业线缆有限公司 A kind of novel mineral insulating flexible fireproof cable
CN109036683A (en) * 2018-08-22 2018-12-18 安徽明星电缆有限公司 A kind of inorganic mineral insulation flexible fire-proof cable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201199464Y (en) * 2008-05-08 2009-02-25 扬州光明电缆有限公司 Symmetrical control low-smoke non-bittern signal cable for ship
CN103646712A (en) * 2013-12-23 2014-03-19 河南金水电缆集团有限公司 Flame-retardant composite fireproof cable
CN204102613U (en) * 2014-05-30 2015-01-14 上海众业通电缆有限公司 A kind of flexible mineral compound inslation metallic sheath fire-resisting cable
CN204760074U (en) * 2015-06-17 2015-11-11 宝胜科技创新股份有限公司 Super flexible fireproof cable of chain armor metal covering of mica insulation protection
CN105719748A (en) * 2016-04-11 2016-06-29 安徽国电电缆集团有限公司 Aluminum metallic sheath fireproof cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201199464Y (en) * 2008-05-08 2009-02-25 扬州光明电缆有限公司 Symmetrical control low-smoke non-bittern signal cable for ship
CN103646712A (en) * 2013-12-23 2014-03-19 河南金水电缆集团有限公司 Flame-retardant composite fireproof cable
CN204102613U (en) * 2014-05-30 2015-01-14 上海众业通电缆有限公司 A kind of flexible mineral compound inslation metallic sheath fire-resisting cable
CN204760074U (en) * 2015-06-17 2015-11-11 宝胜科技创新股份有限公司 Super flexible fireproof cable of chain armor metal covering of mica insulation protection
CN105719748A (en) * 2016-04-11 2016-06-29 安徽国电电缆集团有限公司 Aluminum metallic sheath fireproof cable

Non-Patent Citations (2)

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Title
《电线电缆手册》编委会、徐应麟: "《电线电缆手册 第2册 第2版 增订本》", 31 January 2009, 机械工业出版社 *
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107622819A (en) * 2017-09-30 2018-01-23 上海朗达电缆(集团)有限公司 One kind fire prevention computer cable
CN107622819B (en) * 2017-09-30 2021-06-11 上海朗达电缆(集团)有限公司 Fireproof computer cable
CN107945947A (en) * 2017-12-31 2018-04-20 无锡江南电缆有限公司 One kind block water heat absorption electric wire
CN108538480A (en) * 2018-03-20 2018-09-14 北京市天华伟业线缆有限公司 A kind of novel mineral insulating flexible fireproof cable
CN109036683A (en) * 2018-08-22 2018-12-18 安徽明星电缆有限公司 A kind of inorganic mineral insulation flexible fire-proof cable

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Application publication date: 20161109