CN108538481A - A kind of switchgear flame-retardant shielded cable - Google Patents
A kind of switchgear flame-retardant shielded cable Download PDFInfo
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- CN108538481A CN108538481A CN201810525436.0A CN201810525436A CN108538481A CN 108538481 A CN108538481 A CN 108538481A CN 201810525436 A CN201810525436 A CN 201810525436A CN 108538481 A CN108538481 A CN 108538481A
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- skeleton
- outside
- switchgear
- flame
- main framing
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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- Spectroscopy & Molecular Physics (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of switchgear flame-retardant shielded cables, cable core includes skeleton, the skeleton includes the main framing being square there are one section and four sections are circular secondary skeleton, it slots in an axial direction at the middle part in four faces of the main framing, the secondary skeleton of setting one in each slot, two sections of the slot are respectively symmetrically stuck in it and correspond to the both sides of secondary skeleton, and the main framing is an integral structure with four secondary skeletons；A power wire core is equipped in the main framing, it is respectively equipped with a control conductor in each pair skeleton, the outside of cable core is coated with crosslinked polyethylene inner sheath, tin-coated copper strip braided overall-shielding layer, galvanized steel strip armor, crosslinked polyethylene oversheath successively from inside to outside.The present invention is equipped with skeleton, and skeleton includes the main framing that a section is square and four sections are circular secondary skeleton, is played a very good protection respectively to power wire core, control conductor, while the performance of the resistance to drawing of the resistance to compression that can increase cable.
Description
Technical field
The present invention relates to field of cable technology more particularly to a kind of switchgear flame-retardant shielded cables.
Background technology
Fire is one of the disaster for causing personnel's injury and property loss, as building develops to high level, automation
The extensive use of technology, the increase of various electrical equipments further increase the danger that fire occurs.In this regard, various countries various regions all phases
After having formulated increasingly stringent fire codes.When current naval vessel, production platform, petroleum chemical enterprise, power plant power station, automatic control center are built
Build, hotel, skyscraper, tunnel underground etc. are required for switchgear, with devices such as control fire extinguishing, alarm, illumination, communications.
And as matching used essential cable for, should also have the functions such as fire-retardant, fire resisting, loss is minimized.
Invention content
The object of the invention is exactly to provide a kind of switchgear flame-retardant shielded cable to make up the defect of prior art.
The present invention is achieved by the following technical solutions：
A kind of switchgear flame-retardant shielded cable, it is characterised in that：Include cable core, cable core includes skeleton, the bone
Frame includes the main framing being square there are one section and four sections are circular secondary skeleton, four faces of the main framing
Middle part is slotted in an axial direction, and a secondary skeleton is arranged in each slot, and two sections of the slot are respectively symmetrically stuck in it and correspond to pair
The both sides of skeleton, the main framing are an integral structure with four secondary skeletons；A power wire core is equipped in the main framing, often
A control conductor is respectively equipped in a pair skeleton, control conductor includes two conductors one, has been respectively coated by outside every conductor one
Ethylene propylene rubber insulated layer and pair twist are coated with non-woven fabrics wrapping layer, copper wire outside two conductors one after pair twist successively from inside to outside
Individually shielded layer one is woven, power wire core includes two conductors two, and silicone rubber insulation layer has been respectively coated by simultaneously outside every conductor two
Pair twist is coated with the individually shielded layer of fire-retardant mica layer, proof copper-wire braided two outside two conductors after pair twist successively from inside to outside；It is described
The outside of cable core is coated with crosslinked polyethylene inner sheath, tin-coated copper strip braided overall-shielding layer, galvanized steel strip armour successively from inside to outside
Fill layer, crosslinked polyethylene oversheath.
A kind of switchgear flame-retardant shielded cable, it is characterised in that：The conductor one, two uses copper conductor.
A kind of switchgear flame-retardant shielded cable, it is characterised in that：The cross sectional shape of the power wire core is circle
Shape.
A kind of switchgear flame-retardant shielded cable, it is characterised in that：The cross sectional shape of the control conductor is circle
Shape.
The crosslinked polyethylene is made of the raw material of following weight parts：
Polyethylene 170-200, diisocyanate 3-5, caprolactam 30-40, cumyl peroxide 0.8-1, zinc borate
5-7, bisphenol-A 5-8, phosphite ester 10-12, calcium stearate 1-2.
The preparation method of the crosslinked polyethylene, includes the following steps：
(1) cumyl peroxide is taken, is added in the absolute ethyl alcohol of 6-10 times of its weight, stirs evenly, bis-phenol is added
A is stirred evenly, and obtains bisphenol-A doping initiator solution；
(2) caprolactam, calcium stearate mixing are taken, stirs evenly, is sent in reaction kettle, be passed through nitrogen, adjust reaction
Kettle temperature degree is 70-75 DEG C, and above-mentioned bisphenol-A doping initiator solution is added, and insulated and stirred 4-6 hours is added phosphite ester, increases
Temperature is 135-140 DEG C, insulated and stirred 1-2 hours, and discharging cooling obtains bisphenol A modified polymer；
(3) zinc borate, polyethylene, bisphenol A modified mixed with polymers are taken, is sent into 50-60 DEG C of drying box, dry 1-2
Hour, discharging is added diisocyanate, is sent in extruder, melting extrusion, cooling to get the crosslinked polyethylene.
It is an advantage of the invention that：
The present invention is equipped with skeleton, and skeleton includes the main framing that a section is square and four sections are circular secondary bone
Frame respectively plays a very good protection to power wire core, control conductor, while the performance of the resistance to drawing of the resistance to compression that can increase cable,
The fire-retardant mica layer of conductor outer cladding, the individually shielded layer of proof copper-wire braided of power wire core, the conductor outer cladding non-woven fabrics of control conductor
The individually shielded layer of wrapping layer, proof copper-wire braided, play the role of fire-retardant, fire resisting, shielding electromagnetic interference, the outside of cable core successively
It is coated with crosslinked polyethylene inner sheath, tin-coated copper strip braided overall-shielding layer, galvanized steel strip armor, crosslinked polyethylene oversheath,
So that cable capability of resistance to radiation is strong, high temperature resistant；
The present invention is using caprolactam as monomer, using bisphenol-A doping vario-property, then after polymerizeing with phosphite ester blending reaction,
The heat-resistant stability of polymer is effectively raised, the present invention introduces boron in the process in the cross-linking modified of progress diisocyanate
Sour zinc further improves the fire retardant performance of finished product.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific implementation mode
As shown in Figure 1, a kind of switchgear flame-retardant shielded cable, includes cable core, cable core includes skeleton, the skeleton
Include the main framing 1 being square there are one section and four sections are circular secondary skeleton 2, four faces of the main framing 1
Middle part slot in an axial direction, a secondary skeleton 2 is set in each slot, and two sections of the slot are respectively symmetrically stuck in its correspondence
The both sides of secondary skeleton 2, the main framing 1 are an integral structure with four secondary skeletons 2；A power is equipped in the main framing 1
Core is each respectively equipped with a control conductor in pair skeleton, control conductor includes two conductors 3, is wrapped respectively outside every conductor 3
Be covered with ethylene propylene rubber insulated layer 4 and pair twist, be coated with successively from inside to outside outside two conductors 3 after pair twist non-woven fabrics wrapping layer 5,
The individually shielded layer 6 of proof copper-wire braided, power wire core include two conductors 7, and silicone rubber insulation layer 8 has been respectively coated by outside every conductor 7
And pair twist, it is coated with the individually shielded layer of fire-retardant mica layer 9, proof copper-wire braided 10 outside two conductors 7 after pair twist successively from inside to outside；
The outside of the cable core is coated with crosslinked polyethylene inner sheath 11, tin-coated copper strip braided overall-shielding layer 12, plating successively from inside to outside
Zinc steel-tape armouring layer 13, crosslinked polyethylene oversheath 14.
Conductor 3,7 uses copper conductor.
The cross sectional shape of power wire core is circle.
The cross sectional shape of control conductor is circle.
The crosslinked polyethylene is made of the raw material of following weight parts：
Polyethylene 170, diisocyanate 3, caprolactam 30, cumyl peroxide 0.8, zinc borate 5, bisphenol-A 5, Asia
Phosphate 10, calcium stearate 1.
The preparation method of the crosslinked polyethylene, includes the following steps：
(1) cumyl peroxide is taken, is added in the absolute ethyl alcohol of 6 times of its weight, stirs evenly, bisphenol-A is added, stirs
It mixes uniformly, obtains bisphenol-A doping initiator solution；
(2) caprolactam, calcium stearate mixing are taken, stirs evenly, is sent in reaction kettle, be passed through nitrogen, adjust reaction
Kettle temperature degree is 70 DEG C, and above-mentioned bisphenol-A doping initiator solution is added, and insulated and stirred 4 hours is added phosphite ester, increases temperature
It it is 135 DEG C, insulated and stirred 1 hour, discharging cooling obtains bisphenol A modified polymer；
(3) zinc borate, polyethylene, bisphenol A modified mixed with polymers are taken, is sent into 50 DEG C of drying box, it is 1 hour dry,
Discharging is added diisocyanate, is sent in extruder, melting extrusion, cooling to get the crosslinked polyethylene.
Claims (6)
1. a kind of switchgear flame-retardant shielded cable, it is characterised in that：Include cable core, cable core includes skeleton, the skeleton
Include the main framing being square there are one section and four sections are circular secondary skeleton, in four faces of the main framing
Portion slots in an axial direction, and a secondary skeleton is arranged in each slot, and two sections of the slot are respectively symmetrically stuck in it and correspond to secondary bone
The both sides of frame, the main framing are an integral structure with four secondary skeletons；A power wire core is equipped in the main framing, each
A control conductor is respectively equipped in secondary skeleton, control conductor includes two conductors one, and second has been respectively coated by outside every conductor one
Third rubber insulation and pair twist are coated with non-woven fabrics wrapping layer outside two conductors one after pair twist successively from inside to outside, copper wire is compiled
Knit individually shielded layer one, power wire core includes two conductors two, and silicone rubber insulation layer and right has been respectively coated by outside every conductor two
It twists, is coated with the individually shielded layer of fire-retardant mica layer, proof copper-wire braided two outside two conductors after pair twist successively from inside to outside；The cable
The outside of core is coated with crosslinked polyethylene inner sheath, tin-coated copper strip braided overall-shielding layer, galvanized steel strip armouring successively from inside to outside
Layer, crosslinked polyethylene oversheath.
2. a kind of switchgear flame-retardant shielded cable according to claim 1, it is characterised in that：The conductor one, two is adopted
Use copper conductor.
3. a kind of switchgear flame-retardant shielded cable according to claim 1, it is characterised in that：The power wire core is cut
Face shape is circle.
4. a kind of switchgear flame-retardant shielded cable according to claim 1, it is characterised in that：The control conductor is cut
Face shape is circle.
5. a kind of switchgear flame-retardant shielded cable according to claim 1, it is characterised in that：The crosslinked polyethylene
It is made of the raw material of following weight parts：
Polyethylene 170-200, diisocyanate 3-5, caprolactam 30-40, cumyl peroxide 0.8-1, zinc borate 5-7,
Bisphenol-A 5-8, phosphite ester 10-12, calcium stearate 1-2.
6. a kind of switchgear flame-retardant shielded cable according to claim 5, it is characterised in that：The crosslinked polyethylene
Preparation method, include the following steps：
(1) cumyl peroxide is taken, is added in the absolute ethyl alcohol of 6-10 times of its weight, stirs evenly, bisphenol-A is added, stirs
It mixes uniformly, obtains bisphenol-A doping initiator solution；
(2) caprolactam, calcium stearate mixing are taken, stirs evenly, is sent in reaction kettle, be passed through nitrogen, adjusts reaction kettle temperature
Degree is 70-75 DEG C, and above-mentioned bisphenol-A doping initiator solution is added, and insulated and stirred 4-6 hours is added phosphite ester, increases temperature
It it is 135-140 DEG C, insulated and stirred 1-2 hours, discharging cooling obtains bisphenol A modified polymer；
(3) zinc borate, polyethylene, bisphenol A modified mixed with polymers are taken, is sent into 50-60 DEG C of drying box, it is 1-2 hours dry,
Discharging is added diisocyanate, is sent in extruder, melting extrusion, cooling to get the crosslinked polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810525436.0A CN108538481B (en) | 2018-05-28 | 2018-05-28 | Flame-retardant shielding cable for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810525436.0A CN108538481B (en) | 2018-05-28 | 2018-05-28 | Flame-retardant shielding cable for switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108538481A true CN108538481A (en) | 2018-09-14 |
| CN108538481B CN108538481B (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810525436.0A Active CN108538481B (en) | 2018-05-28 | 2018-05-28 | Flame-retardant shielding cable for switch cabinet |
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| CN (1) | CN108538481B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830335A (en) * | 2019-03-29 | 2019-05-31 | 安徽徽宁电器仪表集团有限公司 | A kind of tensile type shielded cable |
| CN111739690A (en) * | 2020-06-28 | 2020-10-02 | 安徽天康(集团)股份有限公司 | Flame-retardant shielded cable for computer based on dual rubber frameworks |
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| CN101901643A (en) * | 2010-08-04 | 2010-12-01 | 中天科技海缆有限公司 | Bunched frequency conversion submarine cable and manufacturing method thereof |
| CN204834111U (en) * | 2015-07-17 | 2015-12-02 | 安徽电信器材贸易工业有限责任公司 | Tensile is able to bear or endure crooked communication cable |
| CN205487535U (en) * | 2016-03-03 | 2016-08-17 | 安徽华宇电缆集团有限公司 | Novel cable for hoist |
| CN105860251A (en) * | 2016-04-21 | 2016-08-17 | 安徽万泰电缆有限公司 | Anti-corrosion flame-retardant polypropylene cable material |
| CN105895218A (en) * | 2016-06-14 | 2016-08-24 | 中科电力装备（安徽）智能化科技有限公司 | Tensile waterproof cable |
| CN107527682A (en) * | 2017-09-04 | 2017-12-29 | 安徽徽宁电器仪表集团有限公司 | A kind of radiation proof computer cable |
| CN107895605A (en) * | 2017-11-27 | 2018-04-10 | 安徽环宇电缆集团有限公司 | A kind of High-strength stretching-resistantgeogrid special cable |
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2018
- 2018-05-28 CN CN201810525436.0A patent/CN108538481B/en active Active
Patent Citations (8)
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| CN101842416A (en) * | 2007-09-04 | 2010-09-22 | 巴斯夫欧洲公司 | Cyclic phosphines as fire retardant |
| CN101901643A (en) * | 2010-08-04 | 2010-12-01 | 中天科技海缆有限公司 | Bunched frequency conversion submarine cable and manufacturing method thereof |
| CN204834111U (en) * | 2015-07-17 | 2015-12-02 | 安徽电信器材贸易工业有限责任公司 | Tensile is able to bear or endure crooked communication cable |
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| CN105895218A (en) * | 2016-06-14 | 2016-08-24 | 中科电力装备（安徽）智能化科技有限公司 | Tensile waterproof cable |
| CN107527682A (en) * | 2017-09-04 | 2017-12-29 | 安徽徽宁电器仪表集团有限公司 | A kind of radiation proof computer cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830335A (en) * | 2019-03-29 | 2019-05-31 | 安徽徽宁电器仪表集团有限公司 | A kind of tensile type shielded cable |
| CN111739690A (en) * | 2020-06-28 | 2020-10-02 | 安徽天康(集团)股份有限公司 | Flame-retardant shielded cable for computer based on dual rubber frameworks |
| CN111739690B (en) * | 2020-06-28 | 2021-07-27 | 安徽天康(集团)股份有限公司 | Flame-retardant shielded cable for computer based on dual rubber frameworks |
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| CN108538481B (en) | 2020-06-02 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Flame retardant shielded cable for switch cabinet Effective date of registration: 20211009 Granted publication date: 20200602 Pledgee: Tianchang vibration financing Company limited by guarantee Pledgor: ANHUI HUI NING ELECTRICAL INSTRUMENT GROUP Co.,Ltd. Registration number: Y2021980010434 |
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