CN106782833A - Flame-retardant cable - Google Patents

Flame-retardant cable Download PDF

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Publication number
CN106782833A
CN106782833A CN201611215768.6A CN201611215768A CN106782833A CN 106782833 A CN106782833 A CN 106782833A CN 201611215768 A CN201611215768 A CN 201611215768A CN 106782833 A CN106782833 A CN 106782833A
Authority
CN
China
Prior art keywords
insulator
sheath
flame
layer
retardant
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
CN201611215768.6A
Other languages
Chinese (zh)
Inventor
杨政国
贾健佳
邹海鸥
齐刚
张丽红
庞凯
邱绍坤
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.)
Zhangjiagang Twentsche Cable Co Ltd
Original Assignee
Zhangjiagang Twentsche 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 Zhangjiagang Twentsche Cable Co Ltd filed Critical Zhangjiagang Twentsche Cable Co Ltd
Priority to CN201611215768.6A priority Critical patent/CN106782833A/en
Publication of CN106782833A publication Critical patent/CN106782833A/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
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • 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

Abstract

The present invention provides a kind of flame-retardant cable, and it includes:Externally-located sheath and four groups of twisted pair wires in sheath;Wherein, the sheath includes being made up of polyvinyl chloride or the oversheath that low smoke and zero halogen material is made and the flame-retardant layer that the oversheath is provided adjacent to and first screen layer that the flame-retardant layer is provided adjacent to and is provided adjacent to the first screen layer and the secondary shielding layer inside sheath;Each twisted pair wire includes:Second insulator and the second copper conductor in second insulator of the first insulator, the first copper conductor in first insulator and the first insulator pair twist.One layer of special fire proofing of cable of the present invention cladding or braiding, the special fire resistance PVC or special fire resistances LSOH of sheath so that data cable is on fire-retardant with fire protecting performance very high.

Description

Flame-retardant cable
Technical field
The invention belongs to technical field of cables, more particularly to a kind of flame-retardant cable.
Background technology
With the frequent generation of fire incident, people constantly deepen the understanding to electric wire fire risk, to electric wire The requirement of cable fire-proof performance also more and more higher.Available data cable uses twisted pair construction, and copper conductor or other alloys are led Body is insulated as transport vehicle using high density polyethylene (HDPE) (HDPE) or foaming PE, is filled with PE skeletons during stranding, and sheath is used Halogen-free (LSOH) material of the low smog of special fire resistance PVC or special fire resistances.
The GENERAL EXPERIMENTATION of currently marketed cable cable in the case where IEC 60332-3-24 ignition conditions are done:Many into Beam cable Vertical Flame combustion testing -- the combustion test of C classes or the cables of GB/T 18380.35 or optical cable under flame condition:Hang down The straight bunchy electric wire flame vertical installed spreads experiment -- and C classes can not effectively pass through.
Therefore, it is necessary to design a kind of new cable.
The content of the invention
It is an object of the invention to provide a kind of flame-retardant cable with fire protecting performance very high.
The present invention provides a kind of flame-retardant cable, and it includes:Externally-located sheath and four groups of pair twists in sheath Line;Wherein, the sheath includes being made up of polyvinyl chloride or oversheath that low smoke and zero halogen material is made and oversheath adjoining set First screen layer and be provided adjacent to and positioned at shield with the first screen layer that the flame-retardant layer put and the flame-retardant layer are provided adjacent to Secondary shielding layer inside set;Each twisted pair wire includes:First insulator, the first bronze medal in first insulator are led Second insulator and the second copper conductor in second insulator of body and the first insulator pair twist.
Preferably, the first screen layer is wire sheathing, and secondary shielding layer is made up of aluminium-plastic tape.
Preferably, the cable also includes:In the insulation strip of cross structure in the sheath, the insulation strip will be described Four groups of twisted pair wires are mutually isolated.
The present invention also provides a kind of flame-retardant cable, and it includes:Externally-located sheath and four groups pairs in sheath Twisted wire;Wherein, the sheath includes being made up of polyvinyl chloride or oversheath that low smoke and zero halogen material is made and oversheath adjoining The first screen layer and the first screen layer that the flame-retardant layer of setting and the flame-retardant layer are provided adjacent to are provided adjacent to and positioned at sheath Second clad of inwall and the ground wire between first screen layer and the second clad;Each twisted pair wire includes:The Second insulator, the Yi Jiwei of one insulator, the first copper conductor in first insulator and the first insulator pair twist The second copper conductor in second insulator.
Preferably, the first screen layer is made up of aluminium-plastic tape, and the second clad is made up of polyester belt.
The present invention also provides a kind of flame-retardant cable, and it includes:Externally-located sheath and four groups pairs in sheath Twisted wire;Wherein, the sheath includes being made up of polyvinyl chloride or oversheath that low smoke and zero halogen material is made and oversheath adjoining First screen layer that the flame-retardant layer of setting and the flame-retardant layer are provided adjacent to and be provided adjacent to the first screen layer second Screen layer and it is provided adjacent to the secondary shielding layer and the first clad inside sheath;Each twisted pair wire includes: First insulator, the second insulator of the first copper conductor in first insulator and the first insulator pair twist and The second copper conductor in second insulator.
The present invention also provides a kind of flame-retardant cable, and it includes:Externally-located sheath and four groups pairs in sheath Twisted wire;Wherein, the sheath includes being made up of polyvinyl chloride or oversheath that low smoke and zero halogen material is made and oversheath adjoining The flame-retardant layer of setting and it is provided adjacent to the flame-retardant layer and the first screen layer inside sheath;Each twisted pair wire is wrapped Include:First insulator, the second insulator of the first copper conductor in first insulator and the first insulator pair twist, The second copper conductor in second insulator and positioned at first insulator and the external secondary shielding of the second insulation Layer.
The present invention also provides a kind of flame-retardant cable, and it includes:Externally-located sheath, in sheath and four groups of pair twists Line and the ground wire in sheath and outside four groups of twisted pair wires;Wherein, the sheath include be made up of polyvinyl chloride or Flame-retardant layer that the oversheath and the oversheath that low smoke and zero halogen material is made are provided adjacent to and it is provided adjacent to the flame-retardant layer First screen layer;Each twisted pair wire includes:First insulator, the first copper conductor in first insulator and this Second insulator of one insulator pair twist, the second copper conductor in second insulator and positioned at first insulator The secondary shielding layer external with the second insulation.
The present invention also provides a kind of flame-retardant cable, and it includes:Externally-located sheath, in sheath and four groups of pair twists Line and the ground wire in sheath and between four groups of twisted pair wires;Wherein, the sheath includes being made up of polyvinyl chloride Or the flame-retardant layer that is provided adjacent to of the oversheath that is made of low smoke and zero halogen material and the oversheath and be provided adjacent to the flame-retardant layer First screen layer;Each twisted pair wire includes:First insulator, the first copper conductor in first insulator and should Second insulator of the first insulator pair twist, the second copper conductor in second insulator and positioned at this first insulation Body and the external secondary shielding layer of the second insulation.
The present invention also provides a kind of flame-retardant cable, and it includes:Externally-located sheath, four groups of pair twists in sheath Line and the ground wire in sheath and outside four groups of twisted pair wires;Wherein, the sheath include be made up of polyvinyl chloride or Oversheath that low smoke and zero halogen material is made and the flame-retardant layer being provided adjacent to the oversheath;Each twisted pair wire includes:First Insulator, the second insulator of the first copper conductor in first insulator and the first insulator pair twist, positioned at this The second copper conductor in two insulators and positioned at first insulator and the external screen layer of the second insulation.
Cable cladding of the present invention or one layer of special fire proofing of braiding, sheath are fire-retardant with special fire resistance PVC or special Performance LSOH so that data cable has fire protecting performance very high on fire-retardant.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of cable of the present invention;
Fig. 2 is the structural representation of the second embodiment of cable of the present invention;
Fig. 3 is the structural representation of the 3rd embodiment of cable of the present invention;
Fig. 4 is the structural representation of the fourth embodiment of cable of the present invention;
Fig. 5 is the structural representation of the 5th embodiment of cable of the present invention;
Fig. 6 is the structural representation of the sixth embodiment of cable of the present invention;
Fig. 7 is the structural representation of the 7th embodiment of cable of the present invention;
Fig. 8 is the structural representation of the 8th embodiment of cable of the present invention;
Fig. 9 is the structural representation of the 9th embodiment of cable of the present invention;
Figure 10 is the structural representation of the tenth embodiment of cable of the present invention;
Figure 11 is the structural representation of the 11st embodiment of cable of the present invention;
Figure 12 is the structural representation of the 12nd embodiment of cable of the present invention;
Figure 13 is the structural representation of the 13rd embodiment of cable of the present invention;
Figure 14 is the structural representation of the 14th embodiment of cable of the present invention;
Figure 15 is the structural representation of the 15th embodiment of cable of the present invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Flame-retardant cable of the present invention, is used as the transmission netting twine of local area network wiring system.
Fig. 1 show the structural representation of first embodiment of the invention, and the cable core of this cable is 4 pairs of horizontal pair twist cables, This cable is used as many logarithmic datas and voice transfer cable.This cable 10 includes:Externally-located sheath 11 and positioned at sheath In 11 and by four groups of twisted pair wires of different colours pair twist.
Wherein, sheath 11 includes being made up of fire-retardant polyvinyl chloride (PVC) or special fire-retardant low smoke and zero halogen material (LSZH) oversheath 111 being made and the flame-retardant layer for being made up of special fire proofing and being provided adjacent to the oversheath 111 112.Wherein, flame-retardant layer 112 is located at the inwall of sheath 11.
Four groups of twisted pair wires are respectively:First group of twisted wire of the first color and the identical or different color pair twist of first color 12nd, second group of twisted wire 13 of the second color and the identical or different color pair twist of second color, the 3rd color and the 3rd color The 3rd group of color of twisted wire 14 and the 4th of identical or different color pair twist and the identical or different color pair twist of the 4th color 4th group of twisted wire 15, wherein, the first color, the second color, the 3rd color and the 4th color are differed, in the present embodiment, First color is blueness, and the second color is tangerine color, and the 3rd color is green, and the 4th color is brown.
First group of twisted pair wire, 12, second group of twisted pair wire 13, the 3rd group of twisted pair wire 14 and the 4th group of twisted pair wire 15 include:Tool Coloured first insulator 121, the first copper conductor 122 in first insulator 121, with color and with this first Second insulator 131 of the pair twist of insulator 121 and the second copper conductor 132 in second insulator 131.Wherein, One insulator 121 is provided with the vitta or colour circle of the same color of the second insulator 131;First insulator 121 and the second insulator 131 are made by high density polyethylene (HDPE) (HDPE).First group of twisted pair wire, 12, second group of twisted pair wire 13, the 3rd group of and of twisted pair wire 14 4th group of twisted pair wire 15 uses different pitch pair twists, first group of twisted pair wire, 12, second group of twisted pair wire 13, the 3rd group of pair twist Line 14 and the 4th group of twisted pair wire 15 are always twisted into cable 10 again.
This cable 10 meets 100MHz data transmission performances.
Wherein, oversheath 111 and flame-retardant layer 112 are respectively provided with high flame retardant.
Fig. 2 show the structural representation of second embodiment of the invention, the cable 20 shown in Fig. 2 and above-mentioned Fig. 1 institutes timberline The difference of cable 10 is:Cable 20 also includes the insulation strip 1617 in the sheath 11 in cross structure, and it is by first group of twisted pair wire 12nd, second group of twisted pair wire 13, the 3rd group of twisted pair wire 14 and the 4th group of twisted pair wire 15 are mutually isolated.Wherein, the insulation of cross structure Bar 1617 is made by polyethylene, is greatly improved by the insulation strip crosstalk ratio of cross structure, and cross structure Insulation strip 1617 is made of special fire resistance material, and it has high flame retardant.
Cable 20 meets large-scale bunchy combustion testing requirement, also while also meeting the requirement of transmission frequency 250MHz.
This cable 20 meets 250MHz data transmission performances.
Fig. 3 show the structural representation of third embodiment of the invention, and the cable 30 shown in Fig. 3 is by two Fig. 1 institutes timberlines Cable is constituted, i.e.,:Cable 30 includes the first cable 31 and the second cable 32 that link together, and the cable 30 is disjunctor sheath.
This cable 20 meets 100MHz data transmission performances.
Fig. 4 show the structural representation of fourth embodiment of the invention, and the cable 40 shown in Fig. 4 is as shown in two Fig. 2 Cable is constituted, i.e.,:Cable 40 includes the first cable 41 and the second cable 42 that link together, and the cable 40 is disjunctor sheath.
Cable 40 shown in Fig. 4 is distinguished with the cable 30 shown in Fig. 3 and is:Have in cable shown in Fig. 4 is in cross structure Insulation strip.
This cable 30 meets 250MHz data transmission performances.
Fig. 5 show the structural representation of fifth embodiment of the invention, the cable 50 shown in Fig. 5 with shown in above-mentioned Fig. 1 The difference of cable 10 is:The sheath 51 of cable 50 includes:What externally-located oversheath 511 and the oversheath 511 was provided adjacent to First screen layer 513 and be provided adjacent to the first screen layer 513 that flame-retardant layer 512 and the flame-retardant layer 512 are provided adjacent to And the secondary shielding layer 514 inside sheath 51.
Wherein, oversheath 511 is made up or special fire-retardant low smoke and zero halogen material (LSZH) of fire-retardant polyvinyl chloride (PVC) It is made, flame-retardant layer 512 is made up of special fire proofing, first screen layer 513 is wire sheathing, and secondary shielding layer 514 is by aluminium Plastic composite strip is made.
This cable 50 meets 100MHz data transmission performances.
Fig. 6 show the structural representation of sixth embodiment of the invention, the cable 50 shown in Fig. 6 and above-mentioned Fig. 5 institutes timberline The difference of cable is:
The sheath 52 of cable 50 includes:Including:The resistance that externally-located oversheath 521 and the oversheath 521 is provided adjacent to The first screen layer 523 and the first screen layer 523 that combustion layer 522 and the flame-retardant layer 522 are provided adjacent to are provided adjacent to and are located at The second clad 524 inside sheath 52 and the ground wire 525 between the clad 524 of first screen layer 523 and second.
Wherein, oversheath 521 is made up or special fire-retardant low smoke and zero halogen material (LSZH) of fire-retardant polyvinyl chloride (PVC) It is made, flame-retardant layer 522 is made up of special fire proofing, first screen layer 523 is made up of aluminium-plastic tape, the second clad 524 It is made up of polyester belt.
This cable 50 meets 500MHz data transmission performances.
Fig. 7 show the structural representation of seventh embodiment of the invention, the cable 50 shown in Fig. 7 and above-mentioned Fig. 5 institutes timberline The difference of cable is:Cable 50 also includes the insulation strip in sheath 51 in cross structure, and the insulation strip 5657 is in right-angled intersection Set, the insulation strip 5657 by first group of twisted wire, 52, second group of twisted wire 53, the 3rd group of twisted wire 54 and the 4th group of twisted wire 55 mutually every From.
The sheath 51 of cable 50 includes:The flame-retardant layer that externally-located oversheath 511 and the oversheath 511 is provided adjacent to 512 and the first screen layer 513 that is provided adjacent to of the flame-retardant layer 512 and it is provided adjacent to and is located at the first screen layer 513 Secondary shielding layer 514 inside sheath 51.
Wherein, oversheath 511 is made up or special fire-retardant low smoke and zero halogen material (LSZH) of fire-retardant polyvinyl chloride (PVC) It is made, flame-retardant layer 512 is made up of special fire proofing, first screen layer 513 is wire sheathing, and secondary shielding layer 514 is by aluminium Plastic composite strip is made.
Wherein, insulation strip 5657 is made by polyethylene, is greatly improved by the crosstalk ratio of insulation strip 5657, and Insulation strip 5657 can also be made of special fire resistance material.
In other embodiments, the sheath of cable includes:The resistance that externally-located oversheath and the oversheath are provided adjacent to Combustion layer and the flame-retardant layer first screen layer being provided adjacent to and be provided adjacent to the first screen layer secondary shielding layer, with And be provided adjacent to the secondary shielding layer and the first clad inside sheath.
Wherein, oversheath is made up or special fire-retardant low smoke and zero halogen material (LSZH) system of fire-retardant polyvinyl chloride (PVC) Into flame-retardant layer is made up of special fire proofing, and first screen layer is wire sheathing, and secondary shielding layer is by aluminium-plastic tape system Into;First clad is made up of polyester belt.
This cable 50 meets 1200MHz and data below transmission performance.
Fig. 8 show the structural representation of eighth embodiment of the invention, cable 60 shown in Fig. 8 and cable shown in above-mentioned Fig. 1 Difference be:The sheath 61 of cable 60 includes:The flame-retardant layer that externally-located oversheath 611 and the oversheath 511 is provided adjacent to 612 and it is provided adjacent to the flame-retardant layer 612 and the first screen layer 613 inside sheath 61.
Wherein, oversheath 611 is made up or special fire-retardant low smoke and zero halogen material (LSZH) of fire-retardant polyvinyl chloride (PVC) It is made, flame-retardant layer 612 is made up of special fire proofing, first screen layer 613 is wire sheathing.
First group of twisted pair wire, 62, second group of twisted pair wire 63, the 3rd group of twisted pair wire 64 and the 4th group of twisted pair wire 65 include:Tool Coloured first insulator 621, the first copper conductor 622 in first insulator 621, with color and with this first Second insulator 631 of the pair twist of insulator 621 and the second copper conductor 632, Yi Jiwei in second insulator 631 Secondary shielding layer 641 outside the insulator 631 of the first insulator 621 and second.
Wherein, secondary shielding layer 641 is made up of aluminium-plastic tape.
4 twisted pair wire lines are individually wrapped up by secondary shielding layer 641.
Wherein, the first insulator 621 and the second insulator 631 are made by high density polyethylene (HDPE) (HDPE) or foaming PE, What secondary shielding layer 641 was made up of aluminium-plastic tape.First group of twisted pair wire, 62, second group of twisted pair wire 63, the 3rd group of twisted pair wire 64 Different pitch pair twists, first group of twisted pair wire, 62, second group of twisted pair wire 63, the 3rd group pair are used with the 4th group of twisted pair wire 65 Twisted wire 64 and the 4th group of twisted pair wire 65 are always twisted into cable 60 again.
This cable 60 meets 1200MHz and data below transmission performance.
Fig. 9 show the structural representation of ninth embodiment of the invention, cable 60 shown in Fig. 9 and cable shown in above-mentioned Fig. 8 Difference be:The first screen layer 614 of the inside of sheath 61 is made up of aluminium-plastic tape.Cable 60 also includes being located in sheath 61 Ground wire 66, the ground wire 66 is located between two adjacent twisted wires outsides and sheath 61.
First group of twisted pair wire, 62, second group of twisted pair wire 63, the 3rd group of twisted pair wire 64 and the 4th group of twisted pair wire 65 include:Tool Coloured first insulator 621, the first copper conductor 622 in first insulator 621, with color and with this first Second insulator 631 of the pair twist of insulator 621 and the second copper conductor 632, Yi Jiwei in second insulator 631 Secondary shielding layer 641 outside the insulator 631 of the first insulator 621 and second.
Wherein, secondary shielding layer 641 is made up of aluminium-plastic tape.Wherein, the first insulator 621 and the second insulator 631 It is made by high density polyethylene (HDPE) (HDPE) or foaming PE, what secondary shielding layer 641 was made up of aluminium-plastic tape.First group of pair twist 62, second group of twisted pair wire 63 of line, the 3rd group of twisted pair wire 64 and the 4th group of twisted pair wire 65 use different pitch pair twists, and this first 62, second group of twisted pair wire 63 of group twisted pair wire, the 3rd group of twisted pair wire 64 and the 4th group of twisted pair wire 65 are always twisted into cable 60 again.
In other embodiments, ground wire is arranged on first group of twisted pair wire, 62, second group of twisted pair wire 63, the 3rd group of twisted pair wire 64 The centre for setting the space to be formed is enclosed with the 4th group of twisted pair wire 65.
This cable 60 meets 1200MHz and data below transmission performance.
Figure 10 show the structural representation of tenth embodiment of the invention, cable 60 shown in Figure 10 and above-mentioned Fig. 9 institutes timberline The difference of cable is:The sheath 61 of cable 60 includes:It is fire-retardant that externally-located oversheath 611 and the oversheath 511 is provided adjacent to Layer 612 and is provided adjacent to and the first screen layer 613 inside sheath 61 with the flame-retardant layer 612.
Wherein, oversheath 611 is made up or special fire-retardant low smoke and zero halogen material (LSZH) of fire-retardant polyvinyl chloride (PVC) It is made, flame-retardant layer 612 is made up of special fire proofing, first screen layer 613 is made up of aluminium-plastic tape.
Cable 60 also includes the ground wire 66 in sheath 61, and the ground wire 66 is located at two adjacent twisted wire outsides and sheath Between 61.
First group of twisted pair wire, 72, second group of twisted pair wire 73, the 3rd group of twisted pair wire 74 and the 4th group of twisted pair wire 75 include:Tool Coloured first insulator 721, the first copper conductor 722 in first insulator 721, with color and with this first Second insulator 731 of the pair twist of insulator 721 and the second copper conductor 732, Yi Jiwei in second insulator 731 Secondary shielding layer 741 outside the insulator 731 of the first insulator 721 and second.
This cable 60 meets 1200MHz and data below transmission performance.
Figure 11 show the structural representation of eleventh embodiment of the invention, cable 70 shown in Figure 11 with shown in above-mentioned Fig. 9 The difference of cable is:The sheath 71 of cable 70 includes:Externally-located oversheath 711 and it is provided adjacent to the oversheath 711 And the flame-retardant layer 712 inside sheath 71.Sheath 71 is not provided with screen layer.
Wherein, oversheath 711 is made up or special fire-retardant low smoke and zero halogen material (LSZH) of fire-retardant polyvinyl chloride (PVC) It is made, flame-retardant layer 712 is made up of special fire proofing.
First group of twisted pair wire, 72, second group of twisted pair wire 73, the 3rd group of twisted pair wire 4 and the 4th group of twisted pair wire 75 include:Tool Coloured first insulator 721, the first copper conductor 722 in first insulator 721, with color and with this first Second insulator 731 of the pair twist of insulator 721 and the second copper conductor 732, Yi Jiwei in second insulator 731 Secondary shielding layer 741 outside the insulator 731 of the first insulator 721 and second.
This cable 70 meets 1200MHz and data below transmission performance.
Figure 12 show the structural representation of twelveth embodiment of the invention, cable 80 shown in Figure 12 with shown in above-mentioned Fig. 9 The difference of cable is:Cable 80 includes:Sheath 81, the multiple twisted pair wires 82 inside sheath 81 and in sheath 81 The gasket for packing 83 of the heart, in the present embodiment, twisted pair wire 82 is provided with two rows, the inwall of the adjacent sheath 81 of first row twisted pair wire 82, Two row's twisted pair wires 82 are close to first row twisted pair wire 82, and gasket for packing 83 is located at the center of second row twisted pair wire 83.
Sheath 81 includes:Flame-retardant layer 812 that externally-located oversheath 811 and the oversheath 811 is provided adjacent to and It is provided adjacent to the flame-retardant layer 812 and the first clad 813 inside sheath 81.
First group of twisted pair wire, 82, second group of twisted pair wire 83, the 3rd group of twisted pair wire 84 and the 4th group of twisted pair wire 85 include:Tool Coloured first insulator 821, the first copper conductor 822 in first insulator 821, with color and with this first Second insulator 831 of the pair twist of insulator 821 and the second copper conductor 832 in second insulator 831.
First insulator 821 is provided with the vitta or colour circle of the same color of the second insulator 831.
In the present embodiment, first row twisted pair wire is provided with 16, and second row is provided with pair big logarithm line of 9, i.e., 25 to tree lace Cable.The lapping layer of polyester belt 813 is the total lapping layer after 25 pairs of strandings.
The line of table 1 uses color color-sequential to preferential
Wherein, it is the vitta or the color of colour circle of indicating strip in the bracket of table 1.
Wherein, oversheath 811 is made up or special fire-retardant low smoke and zero halogen material (LSZH) of fire-retardant polyvinyl chloride (PVC) It is made;Flame-retardant layer 812 is made up of special fire proofing;What the first clad 813 was made up of polyester belt.Each twisted pair wire 82 is wrapped Include:Have coloured first insulator 821, the first copper conductor 822 in first insulator 821, with color and with Second insulator 823 of the pair twist of the first insulator 821 and the second copper conductor 824 in second insulator 823.
This cable 80 meets 100MHz data transmission performances.
Figure 13 show the structural representation of thriteenth embodiment of the invention, cable 80 shown in Figure 13 with shown in above-mentioned Figure 12 The difference of cable is:Sheath 81 also include secondary shielding layer 814 between the clad 813 of flame-retardant layer 812 and first and Ground wire 815 between the first clad 813 and secondary shielding layer 814.Sheath 81 includes:Externally-located oversheath 811, The flame-retardant layer 812 being provided adjacent to the oversheath 811 and the secondary shielding layer 814 being provided adjacent to the flame-retardant layer 812, with And set with the secondary shielding layer 814 neighbours and the first clad 813 inside sheath 81.
Wherein, oversheath 811 is made up or special fire-retardant low smoke and zero halogen material (LSZH) of fire-retardant polyvinyl chloride (PVC) It is made;Flame-retardant layer 812 is made up of special fire proofing;What the first clad 813 was made up of polyester belt;Secondary shielding layer 814 by What aluminium-plastic tape was made.
This cable 80 meets 100MHz data transmission performances.
Figure 14 show the structural representation of fourteenth embodiment of the invention, cable 80 shown in Figure 14 with shown in above-mentioned Figure 12 The difference of cable is:Cable 80 shown in Figure 14 is not provided with gasket for packing 83, and screen layer is not provided with outside twisted wire.
Cable 80 includes:Sheath 81 and at least 10 twisted pair wires 84 inside sheath 81, in the present embodiment, Twisted pair wire 84 is provided with 25, and each twisted pair wire 84 includes:Have coloured first insulator 841, positioned at first insulator 841 Interior the first copper conductor 842, the second insulator 843 in different colours or same color and with the pair twist of the first insulator 841, And the second copper conductor 844 in second insulator 843.
In other embodiments, cable includes:Sheath and 25 twisted pair wires inside sheath, sheath include:It is located at Flame-retardant layer and be provided adjacent to and inside sheath with the flame-retardant layer that outside oversheath and the oversheath is provided adjacent to The first clad.
Wherein, oversheath is made up or special fire-retardant low smoke and zero halogen material (LSZH) system of fire-retardant polyvinyl chloride (PVC) Into;Flame-retardant layer is made up of special fire proofing;What the first clad was made up of polyester belt.
In other embodiments, cable includes:Sheath and 25 twisted pair wires inside sheath, sheath include:It is located at Outside oversheath and the oversheath flame-retardant layer being provided adjacent to and the secondary shielding layer being provided adjacent to the flame-retardant layer and Secondary shielding layer neighbours are set and the first clad inside sheath and positioned at the first clad and secondary shielding layer Between ground wire.
Wherein, oversheath is made up or special fire-retardant low smoke and zero halogen material (LSZH) system of fire-retardant polyvinyl chloride (PVC) Into;Flame-retardant layer is made up of special fire proofing;What the first clad was made up of polyester belt;Secondary shielding layer is by aluminium-plastic tape system Into.
This cable 80 meets 16MHz data transmission performances.
Figure 15 show the structural representation of fifteenth embodiment of the invention, cable 90 shown in Figure 15 with shown in above-mentioned Figure 14 The difference of cable is:Cable 90 includes:Sheath 91 and four subunits 92,93,94,95 inside sheath 91, each Tangled by mark band 921 outside subunit, multiple twisted pair wires 96 are provided with inside each subunit, each twisted pair wire 96 includes: Have coloured first insulator 961, the first copper conductor 962 in first insulator 961, with color and with this Second insulator 963 of the pair twist of one insulator 961 and the second copper conductor 964 in second insulator 963.
First insulator 961 is provided with the vitta or colour circle of the same color of the second insulator 962.
Wherein, the indicating strip 921 in each subunit 92 is used to indicate four differences of subunit 92.
In the present embodiment, 25 twisted pair wires are provided with each subunit.
The color that 25 twisted pair wires are provided with each subunit is as shown in table 1 below
The line of table 2 uses color color-sequential to preferential
Wherein, it is the vitta or the color of colour circle of indicating strip in the bracket of table 2.
This cable 90 meets 16MHz data transmission performances.
In other embodiments, cable includes:Sheath and four subunits inside sheath, each subunit Outside is tangled by mark band, and 25 twisted pair wires are provided with inside each subunit, and each twisted pair wire includes:Have coloured first Insulator, the first copper conductor in first insulator, with color and with the second of the first insulator pair twist the insulation Body and the second copper conductor in second insulator.
Sheath includes the flame-retardant layer that is provided adjacent to of externally-located oversheath and the oversheath and adjacent with the flame-retardant layer Connect setting and the first clad inside sheath.
First clad is made up of polyester belt.
In other embodiments, cable includes:Sheath and four subunits inside sheath, each subunit Outside is tangled by mark band, and 25 twisted pair wires are provided with inside each subunit, and each twisted pair wire includes:Have coloured first Insulator, the first copper conductor in first insulator, with color and with the second of the first insulator pair twist the insulation Body and the second copper conductor in second insulator.
The flame-retardant layer and flame-retardant layer adjoining that sheath is provided adjacent to including externally-located oversheath and the oversheath set The first screen layer put and the first screen layer are provided adjacent to and the second clad inside sheath and positioned at first Ground wire between screen layer and the second clad.
First screen layer is made up of aluminium-plastic tape, and the second clad is made up of polyester belt.The cable core bag of cable of the present invention A kind of special fire resistance material is covered, it shows superior fire resistance on large-scale combustion testing, large-scale bunchy can be passed through Combustion testing, and electric property meets the digital communication polyolefin insulation horizontal twisted pair cables of YD/T 1019, IEC 61156-5 Digital communication multicore is symmetrically right/quad, IEC 61156-4 digital communications pair twists or star quad stranding multicore balanced cable, The standard of ANSI/TIA-568-C.2 balancing twisted-pair line communication cables and its component, increases special flame-retardant layer, so on its cable core Sheath constitutes flame-retardant cable of the present invention again afterwards.
Cable cladding of the present invention or one layer of special fire proofing of braiding, sheath are fire-retardant with special fire resistance PVC or special Performance LSOH so that data cable has fire protecting performance very high on fire-retardant;Cable of the present invention is used as data center, comprehensive cloth The connecting line of line, server, computer room rack, Internet bar's equipment and equipment, distributing frame and equipment and panel interface to equipment.
The preferred embodiment of the present invention described in detail above, but the present invention is not limited in above-mentioned implementation method Detail, in range of the technology design of the invention, can carry out various equivalents to technical scheme, these Equivalents belong to protection scope of the present invention.

Claims (10)

1. a kind of flame-retardant cable, it is characterised in that it includes:Externally-located sheath and four groups of pair twists in sheath Line;Wherein, the sheath includes being made up of polyvinyl chloride or oversheath that low smoke and zero halogen material is made and oversheath adjoining set First screen layer and be provided adjacent to and positioned at shield with the first screen layer that the flame-retardant layer put and the flame-retardant layer are provided adjacent to Secondary shielding layer inside set;Each twisted pair wire includes:First insulator, the first bronze medal in first insulator are led Second insulator and the second copper conductor in second insulator of body and the first insulator pair twist.
2. flame-retardant cable according to claim 1, it is characterised in that:The first screen layer is wire sheathing, second Screen layer is made up of aluminium-plastic tape.
3. flame-retardant cable according to claim 1, it is characterised in that:The cable also includes:It is in the sheath The insulation strip of cross structure, the insulation strip is mutually isolated by four groups of twisted pair wires.
4. a kind of flame-retardant cable, it is characterised in that it includes:Externally-located sheath and four groups of pair twists in sheath Line;Wherein, the sheath includes being made up of polyvinyl chloride or oversheath that low smoke and zero halogen material is made and oversheath adjoining set The first screen layer and the first screen layer that the flame-retardant layer put and the flame-retardant layer are provided adjacent to are provided adjacent to and in sheath Second clad of wall and the ground wire between first screen layer and the second clad;Each twisted pair wire includes:First Insulator, the second insulator of the first copper conductor in first insulator and the first insulator pair twist and it is located at The second copper conductor in second insulator.
5. flame-retardant cable according to claim 4, it is characterised in that:The first screen layer is made up of aluminium-plastic tape, Second clad is made up of polyester belt.
6. a kind of flame-retardant cable, it is characterised in that it includes:Externally-located sheath and four groups of pair twists in sheath Line;Wherein, the sheath includes being made up of polyvinyl chloride or oversheath that low smoke and zero halogen material is made and oversheath adjoining set First screen layer that the flame-retardant layer put and the flame-retardant layer are provided adjacent to and the second screen being provided adjacent to the first screen layer Cover layer and be provided adjacent to the secondary shielding layer and the first clad inside sheath;Each twisted pair wire includes:The Second insulator, the Yi Jiwei of one insulator, the first copper conductor in first insulator and the first insulator pair twist The second copper conductor in second insulator.
7. a kind of flame-retardant cable, it is characterised in that it includes:Externally-located sheath and four groups of pair twists in sheath Line;Wherein, the sheath includes being made up of polyvinyl chloride or oversheath that low smoke and zero halogen material is made and oversheath adjoining set The flame-retardant layer put and it is provided adjacent to the flame-retardant layer and the first screen layer inside sheath;Each twisted pair wire includes: First insulator, the second insulator of the first copper conductor in first insulator and the first insulator pair twist, it is located at The second copper conductor in second insulator and positioned at first insulator and the external secondary shielding layer of the second insulation.
8. a kind of flame-retardant cable, it is characterised in that it includes:Externally-located sheath, in sheath and four groups of twisted pair wires, And the ground wire in sheath and outside four groups of twisted pair wires;Wherein, the sheath includes being made up of polyvinyl chloride or low Flame-retardant layer that the oversheath and the oversheath that cigarette halogen-free material is made are provided adjacent to and be provided adjacent to the flame-retardant layer One screen layer;Each twisted pair wire includes:First insulator, the first copper conductor in first insulator and this first Second insulator of insulator pair twist, the second copper conductor in second insulator and positioned at first insulator and The external secondary shielding layer of second insulation.
9. a kind of flame-retardant cable, it is characterised in that it includes:Externally-located sheath, in sheath and four groups of twisted pair wires, And the ground wire in sheath and between four groups of twisted pair wires;Wherein, the sheath include be made up of polyvinyl chloride or Flame-retardant layer that the oversheath and the oversheath that low smoke and zero halogen material is made are provided adjacent to and it is provided adjacent to the flame-retardant layer First screen layer;Each twisted pair wire includes:First insulator, the first copper conductor in first insulator and this Second insulator of one insulator pair twist, the second copper conductor in second insulator and positioned at first insulator The secondary shielding layer external with the second insulation.
10. a kind of flame-retardant cable, it is characterised in that it includes:Externally-located sheath, four groups of twisted pair wires in sheath, And the ground wire in sheath and outside four groups of twisted pair wires;Wherein, the sheath includes being made up of polyvinyl chloride or low Oversheath that cigarette halogen-free material is made and the flame-retardant layer being provided adjacent to the oversheath;Each twisted pair wire includes:First is exhausted Edge body, the second insulator of the first copper conductor in first insulator and the first insulator pair twist, positioned at this second The second copper conductor in insulator and positioned at first insulator and the external screen layer of the second insulation.
CN201611215768.6A 2016-12-26 2016-12-26 Flame-retardant cable Pending CN106782833A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019056567A1 (en) * 2017-09-22 2019-03-28 张家港特恩驰电缆有限公司 Fire resistant data cable

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Publication number Priority date Publication date Assignee Title
US4500748A (en) * 1982-05-24 1985-02-19 Eaton Corporation Flame retardent electrical cable
CN201247647Y (en) * 2008-08-15 2009-05-27 中山市日丰电缆制造有限公司 FBC-H1 type on-site bus cable
CN104575713A (en) * 2013-10-17 2015-04-29 扬州曙光电缆股份有限公司 Special instrument cable for nuclear power plant
CN204904875U (en) * 2015-07-17 2015-12-23 江苏东强股份有限公司 Fire -retardant digital communication cable of high frequency for naval vessel
CN205582603U (en) * 2016-04-15 2016-09-14 扬州曙光电缆股份有限公司 Compensation cable used for thermoelectric couple

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Publication number Priority date Publication date Assignee Title
US4500748A (en) * 1982-05-24 1985-02-19 Eaton Corporation Flame retardent electrical cable
US4500748B1 (en) * 1982-05-24 1996-04-09 Furon Co Flame retardant electrical cable
CN201247647Y (en) * 2008-08-15 2009-05-27 中山市日丰电缆制造有限公司 FBC-H1 type on-site bus cable
CN104575713A (en) * 2013-10-17 2015-04-29 扬州曙光电缆股份有限公司 Special instrument cable for nuclear power plant
CN204904875U (en) * 2015-07-17 2015-12-23 江苏东强股份有限公司 Fire -retardant digital communication cable of high frequency for naval vessel
CN205582603U (en) * 2016-04-15 2016-09-14 扬州曙光电缆股份有限公司 Compensation cable used for thermoelectric couple

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019056567A1 (en) * 2017-09-22 2019-03-28 张家港特恩驰电缆有限公司 Fire resistant data cable

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Application publication date: 20170531