CN105336414A - Flame-retardant fireproof power transmission cable with low conduction temperature - Google Patents

Flame-retardant fireproof power transmission cable with low conduction temperature Download PDF

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Publication number
CN105336414A
CN105336414A CN201510615755.7A CN201510615755A CN105336414A CN 105336414 A CN105336414 A CN 105336414A CN 201510615755 A CN201510615755 A CN 201510615755A CN 105336414 A CN105336414 A CN 105336414A
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CN
China
Prior art keywords
parts
cable
ceramic composite
composite band
copper conductor
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
CN201510615755.7A
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Chinese (zh)
Inventor
鲍继聪
钱子明
曹卫建
张蓓
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 Hengtong Power Cable Co Ltd
Original Assignee
Jiangsu Hengtong Power 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 Hengtong Power Cable Co Ltd filed Critical Jiangsu Hengtong Power Cable Co Ltd
Publication of CN105336414A publication Critical patent/CN105336414A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/003—Power cables including electrical control or communication wires

Abstract

The invention discloses a flame-retardant fireproof power transmission cable with low conduction temperature. A ceramic composite band wraps the outer surface of a cable core. A high-thermal-resistance low-smoke halogen-free polyolefin sheath layer wraps the outer surface of the ceramic composite band and is composed of following ingredients including, by weight, 80 to 100 parts of ethylene vinyl acetate copolymer, 5 to 20 parts of ethylene propylene diene monomer (EPDM) rubber, 150 to 200 parts of aluminum hydroxide, 0.5 to 1.5 parts of stearic acid Hst, 1.5 to 2.0 parts of release agent, 2.0 to 3.0 parts of high wear-resistant carbon black, 1.0 to 2.0 parts of coupling agent, 3.0 to 4.0 parts of dicumyl peroxide, 2.5 to 3.5 parts of promoter TA2C, 7 to 9 parts of dioctyl adipate, and 0.3 to 1.4 parts of assistant vulcanizing agent cyanuric acid triene propyl ester. The diameter of a copper conductor is decreased. Most of heat generated by the copper conductor is locked in the cable core so that the surface temperature of the sheath layer is not over 70 degrees centigrade.

Description

Flame retardant type low transition temperature fire resistant electric power transmission cable
Technical field
The present invention relates to high current-carrying capacity fire resistant electric power cable, also relate to the preparation technology of this high current-carrying capacity fire resistant electric power cable.
Background technology
At present, the field, naval vessel of defense applications, all is furnished with the accident network electric energy transmitting of emergency start when having an accident, to ensure the electric power transfer of relevant device, what such cable used is all fire-retardant class cables, specification approximately uses 3*70's, ampacity is at about 150A, jacket surface temperature does not allow more than 70 DEG C that (temperature requirement is very strict, because after generation emergency, need, with hand, cable is hauled out reel, and insert related system, temperature is too high hand-held incessantly), external diameter is greatly about about 40.0mm; Requirement in industry annual meeting in this year, accident network cable needs to change flame retardant type into fire safe type, and specification uses 3*25, and ampacity requires to reach 150A equally, and jacket surface temperature requires to be no more than 70 DEG C equally, the maximum 30mm of external diameter.There is very large technological development difficulty after such requirement, because (1) ampacity is constant, specification is by 70mm 2be down to 25mm 2time, conductor temp .-elevating can obviously strengthen, and when operating ambient temperature 50 DEG C, also can substantially exceed 70 DEG C (we do overtesting with common cable, and temperature is finally at 108 DEG C) when reaching the temperature of jacket surface; (2) cable specification reduces at double, and the outside diameter of cable requires to reduce, current-carrying capacity of cable and jacket surface temperature-resistant, also require that cable possesses fire-resistant function, this is concerning very difficult the realization of cable simultaneously.
Summary of the invention
The object of this invention is to provide a kind of flame retardant type low transition temperature fire resistant electric power transmission cable, when operating ambient temperature 50 DEG C, reduce copper conductor diameter, the most of heat achieved copper conductor produces is locked in cable core, thus ensure that restrictive coating surface temperature is no more than 70 DEG C.
For achieving the above object, the technical solution used in the present invention is: a kind of flame retardant type low transition temperature fire resistant electric power transmission cable, described power transfer cable comprises 3 copper conductors, this copper conductor outer surface is coated with refractory insulating layer, 3 copper conductor stranded formation one cable cores, one ceramic composite band is wrapped in described cable core outer surface, one high thermal resistance low-smoke halogen-free polyolefin restrictive coating is coated on described ceramic composite band outer surface, , described high thermal resistance low-smoke halogen-free polyolefin restrictive coating is made up of following parts by weight of component: ethylene vinyl acetate copolymer EVM500HV80 ~ 100 part, ethylene-propylene diene copolymer EPDM5 ~ 20 part, 150 ~ 200 parts, aluminium hydroxide, stearic acid Hst0.5 ~ 1.5 part, release agent 1.5 ~ 2.0 parts, high wear-resistant carbon black 2.0 ~ 3.0 parts, coupling agent 1.0 ~ 2.0 parts, cumyl peroxide 3.0 ~ 4.0 parts, promoter TA2C2.5 ~ 3.5 part, dioctyl adipate 7 ~ 9 parts, auxiliary curing agent triallyl cyanurate 0.3 ~ 1.4 part,
The preparation technology of described high thermal resistance low-smoke halogen-free polyolefin restrictive coating, comprises the following steps:
Step one. by 80 ~ 100 parts of described ethylene vinyl acetate copolymer EVM500HV, 5 ~ 20 parts of ethylene-propylene diene copolymer EPDM mixing 5min ~ 6min in 100 DEG C ~ 120 DEG C banburies, evenly mixing;
Step 2. in described banbury, add 150 ~ 200 parts of described aluminium hydroxides, 0.5 ~ 1.5 part of stearic acid Hst, 1.5 ~ 2.0 parts of release agents, 2.0 ~ 3.0 parts of high wear-resistant carbon blacks, 1.0 ~ 2.0 parts of coupling agents, 2.5 ~ 3.5 parts of promoter TA2C, 7 ~ 9 parts of dioctyl adipates again, mixing 3min ~ 5min;
Step 3. in described banbury, finally add 3.0 ~ 4.0 parts of described vulcanizing agent cumyl peroxides, 0.3 ~ 1.4 part of auxiliary curing agent triallyl cyanurate, mixing 0.5min ~ 1.5min, then discharges glue stuff compounding;
Step 4. by described glue stuff compounding thin-pass 1 ~ 2 time on a mill until, meanwhile, pendulum glue 2 ~ 3 times, then on tri-roll press machine, open bar slice, the rubber page of output cools through chill roll, after crossing talcum powder case, i.e. obtained finished product; The sectional area of described copper conductor is 25mm 2; Some glass fibres are filled with between described refractory insulating layer and ceramic composite band.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Flame retardant type of the present invention low transition temperature fire resistant electric power transmission cable, refractory thermal insulator is introduced this cable as insulation and flame retardant coating by it, by the high thermal resistance low-smoke halogen-free polyolefin sheath material of thermal insulation layer in conjunction with certain content of the present invention and component, make that this cable specification number doubly reduces, ampacity constant still for 150A, external diameter by 40mm be decreased to 30mm diminish time, at operating ambient temperature 50 DEG C, jacket surface temperature is no more than 70 DEG C, simultaneously the properties of cable meets the requirement in standard completely, and cable is possessed simultaneously fire-retardant and fire resistance.
Accompanying drawing explanation
Accompanying drawing 1 is flame retardant type of the present invention low transition temperature fire resistant electric power transmission cable structure schematic diagram;
Accompanying drawing 2 is the partial structurtes schematic diagram of accompanying drawing 1.
In above accompanying drawing: 1, copper conductor; 2, refractory insulating layer; 3, cable core; 4, ceramic composite band; 5, high thermal resistance low-smoke halogen-free polyolefin restrictive coating; 6, glass fibre.
Embodiment
Embodiment: a kind of flame retardant type low transition temperature fire resistant electric power transmission cable, described high current-carrying capacity low transition temperature fire resistant electric power cable wrap draws together 3 copper conductors 1, this copper conductor 1 outer surface is coated with refractory insulating layer 2,3 copper conductor 1 stranded formation one cable cores 3, one ceramic composite band 4 is wrapped in described cable core 3 outer surface, one high thermal resistance low-smoke halogen-free polyolefin restrictive coating 5 is coated on described ceramic composite band 4 outer surface, described high thermal resistance low-smoke halogen-free polyolefin restrictive coating 5 is made up of following parts by weight of component, as shown in table 1:
Table 1
The sectional area of above-mentioned copper conductor is 25mm 2.
Some glass fibres 6 are filled with between above-mentioned refractory insulating layer and ceramic composite band.
The preparation technology of above-mentioned flame retardant type low transition temperature fire resistant electric power transmission cable, the preparation technology of described high thermal resistance low-smoke halogen-free polyolefin restrictive coating, comprises the following steps:
Step one. by 80 ~ 100 parts of described ethylene vinyl acetate copolymer EVM500HV, 5 ~ 20 parts of ethylene-propylene diene copolymer EPDM(3722) mixing 5min ~ 6min in 100 DEG C ~ 120 DEG C banburies, evenly mixing;
Step 2. in described banbury, add 150 ~ 200 parts of described aluminium hydroxides, 0.5 ~ 1.5 part of stearic acid Hst, 1.5 ~ 2.0 parts of release agents, 2.0 ~ 3.0 parts of high wear-resistant carbon blacks (N330), 1.0 ~ 2.0 parts of coupling agents (KH-560), 2.5 ~ 3.5 parts of promoter TA2C, 7 ~ 9 parts of dioctyl adipates (DOA) again, mixing 3min ~ 5min;
Step 3. in described banbury, finally add 3.0 ~ 4.0 parts of described vulcanizing agent cumyl peroxides (DCP), 0.3 ~ 1.4 part of auxiliary curing agent triallyl cyanurate, mixing 0.5min ~ 1.5min, then discharges glue stuff compounding;
Step 4. by described glue stuff compounding thin-pass 1 ~ 2 time on a mill until, meanwhile, pendulum glue 2 ~ 3 times, then on tri-roll press machine, open bar slice, the rubber page of output cools through chill roll, after crossing talcum powder case, i.e. obtained finished product.
Due to the utilization of technique scheme, the present invention has following advantages: this low-smoke halogen-free polyolefin possesses certain heat insulating function, and properties meets the design of expection simultaneously, and specifically in table 2, preparation technology is simple, workable.
Table 2 high current-carrying capacity low transition temperature fire resistant electric power cable performance index
The present invention is at operating ambient temperature 50 DEG C, and jacket surface temperature is no more than 70 DEG C, and simultaneously the properties of cable meets the requirement in standard completely, and cable is possessed simultaneously fire-retardant and fire resistance.Concrete combination property contrast table is in table 3:
The combination property contrast table of table 3 accident network analysis flexible electric power cable
To sum up, accident network analysis high current-carrying capacity of the present invention low transition temperature fire resistant electric power cable, refractory thermal insulator is introduced this cable as insulation and flame retardant coating by it, by the high thermal resistance low-smoke halogen-free polyolefin sheath material of thermal insulation layer in conjunction with certain content of the present invention and component, this cable specification number is doubly reduced, ampacity is constant is still 150A, external diameter by 40mm be decreased to 30mm diminish time, at operating ambient temperature 50 DEG C, jacket surface temperature is no more than 70 DEG C, the properties of cable meets the requirement in standard completely simultaneously, and cable is possessed simultaneously fire-retardant and fire resistance.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (1)

1. a flame retardant type low transition temperature fire resistant electric power transmission cable, it is characterized in that: described power transfer cable comprises 3 copper conductors (1), this copper conductor (1) outer surface is coated with refractory insulating layer (2), 3 copper conductors (1) stranded formation one cable core (3), one ceramic composite band (4) is wrapped in described cable core (3) outer surface, one high thermal resistance low-smoke halogen-free polyolefin restrictive coating (5) is coated on described ceramic composite band (4) outer surface, described high thermal resistance low-smoke halogen-free polyolefin restrictive coating (5) is made up of following parts by weight of component: ethylene vinyl acetate copolymer EVM500HV80 ~ 100 part, ethylene-propylene diene copolymer EPDM5 ~ 20 part, 150 ~ 200 parts, aluminium hydroxide, stearic acid Hst0.5 ~ 1.5 part, release agent 1.5 ~ 2.0 parts, high wear-resistant carbon black 2.0 ~ 3.0 parts, coupling agent 1.0 ~ 2.0 parts, cumyl peroxide 3.0 ~ 4.0 parts, promoter TA2C2.5 ~ 3.5 part, dioctyl adipate 7 ~ 9 parts, auxiliary curing agent triallyl cyanurate 0.3 ~ 1.4 part,
The preparation technology of described high thermal resistance low-smoke halogen-free polyolefin restrictive coating, comprises the following steps:
Step one. by 80 ~ 100 parts of described ethylene vinyl acetate copolymer EVM500HV, 5 ~ 20 parts of ethylene-propylene diene copolymer EPDM mixing 5min ~ 6min in 100 DEG C ~ 120 DEG C banburies, evenly mixing;
Step 2. in described banbury, add 150 ~ 200 parts of described aluminium hydroxides, 0.5 ~ 1.5 part of stearic acid Hst, 1.5 ~ 2.0 parts of release agents, 2.0 ~ 3.0 parts of high wear-resistant carbon blacks, 1.0 ~ 2.0 parts of coupling agents, 2.5 ~ 3.5 parts of promoter TA2C, 7 ~ 9 parts of dioctyl adipates again, mixing 3min ~ 5min;
Step 3. in described banbury, finally add 3.0 ~ 4.0 parts of described vulcanizing agent cumyl peroxides, 0.3 ~ 1.4 part of auxiliary curing agent triallyl cyanurate, mixing 0.5min ~ 1.5min, then discharges glue stuff compounding;
Step 4. by described glue stuff compounding thin-pass 1 ~ 2 time on a mill until, meanwhile, pendulum glue 2 ~ 3 times, then on tri-roll press machine, open bar slice, the rubber page of output cools through chill roll, after crossing talcum powder case, i.e. obtained finished product; The sectional area of described copper conductor is 25mm 2; Some glass fibres (6) are filled with between described refractory insulating layer and ceramic composite band.
CN201510615755.7A 2013-01-29 2013-01-29 Flame-retardant fireproof power transmission cable with low conduction temperature Pending CN105336414A (en)

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CN201310032786.0A CN103077775B (en) 2013-01-29 2013-01-29 Accident network analysis high current-carrying capacity low transition temperature fire resistant electric power cable and preparation technology

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CN201510615755.7A Pending CN105336414A (en) 2013-01-29 2013-01-29 Flame-retardant fireproof power transmission cable with low conduction temperature
CN201510351367.2A Pending CN105047285A (en) 2013-01-29 2013-01-29 Manufacturing process for fireproof power cable with low conductive temperature
CN201510615520.8A Pending CN105321603A (en) 2013-01-29 2013-01-29 Manufacturing process for fire-resistant power transmission cable with high current-carrying capacity
CN201510351368.7A Pending CN104966575A (en) 2013-01-29 2013-01-29 High-ampacity fire-resistance power cable
CN201310032786.0A Active CN103077775B (en) 2013-01-29 2013-01-29 Accident network analysis high current-carrying capacity low transition temperature fire resistant electric power cable and preparation technology

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CN201510615520.8A Pending CN105321603A (en) 2013-01-29 2013-01-29 Manufacturing process for fire-resistant power transmission cable with high current-carrying capacity
CN201510351368.7A Pending CN104966575A (en) 2013-01-29 2013-01-29 High-ampacity fire-resistance power cable
CN201310032786.0A Active CN103077775B (en) 2013-01-29 2013-01-29 Accident network analysis high current-carrying capacity low transition temperature fire resistant electric power cable and preparation technology

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CN104371199A (en) * 2013-08-14 2015-02-25 特变电工股份有限公司 Low-smoke halogen-free coal mine electric cable material and preparation method thereof
CN103554635B (en) * 2013-10-24 2015-10-07 苏州市双鑫新材料科技有限公司 A kind of preparation technology of strippable semi-conductive external shield material
CN104681191A (en) * 2013-11-29 2015-06-03 江苏亨通电力电缆有限公司 Rubber jacketed flexible cable with low smoke, no halogen, low toxicity and environment friendliness for coal mine
CN105254995A (en) * 2015-11-18 2016-01-20 常州船用电缆有限责任公司 Mud-resistant cable sheath rubber material and preparation method thereof
CN106009242A (en) * 2016-07-27 2016-10-12 马弗橡塑（镇江）有限公司 LSOH (Low Smoke Zero Halogen) flame-retardant jacket material for marine cable and preparation method
CN108034120A (en) * 2017-12-20 2018-05-15 苏州希普拉斯新材料有限公司 The preparation process of new-energy automobile halogen-free flameproof high resiliency cable material of polyolefin
CN114242318A (en) * 2019-06-20 2022-03-25 广西纵览线缆集团有限公司 Heat insulation composite cable
CN110437529A (en) * 2019-08-16 2019-11-12 中广核高新核材科技（苏州）有限公司 A kind of oxygen barrier material of low smoke halogen-free flame-retardant polyolefin

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CN103077775B (en) 2015-11-11
CN105047285A (en) 2015-11-11
CN105321603A (en) 2016-02-10
CN104966575A (en) 2015-10-07
CN103077775A (en) 2013-05-01

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