CN201142250Y - Composite conductor environment friendly flame-proof type signal cable - Google Patents
Composite conductor environment friendly flame-proof type signal cable Download PDFInfo
- Publication number
- CN201142250Y CN201142250Y CNU2008200304577U CN200820030457U CN201142250Y CN 201142250 Y CN201142250 Y CN 201142250Y CN U2008200304577 U CNU2008200304577 U CN U2008200304577U CN 200820030457 U CN200820030457 U CN 200820030457U CN 201142250 Y CN201142250 Y CN 201142250Y
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- core
- composite conductor
- retardant
- cable
- signal cable
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Abstract
The utility model relates to a composite conductor environment protective flame retardant type signal cable, which belongs to the cable technology field, and comprises single-core insulating wire cores, wire groups intertwisted by a plurality of single core insulating wire cores, a cable core intertwisted by a plurality of wire groups and fillings. The single core insulating wire core is composed of a composite conductor and an insulating layer coated outside the composite conductor, a polyester strap is lapped outside the wire groups intertwisted by a plurality of single core insulating wire cores, a screening layer is lapped outside the polyester strap, a flame retardant strap layer is lapped outside the cable core intertwisted by a plurality of wire groups, a collective screening layer is lapped on the flame retardant strap layer, and a low-smoke and halogen-free flame-retardant polyolefin sheath layer is lapped on the collective screening layer. The signal cable has the advantages of reasonable structure and scientific select-material, economization and practibility, and good performance.
Description
Technical field
The utility model relates to a kind of composite conductor environment friendly flame-retardant signal cable, belongs to the cable technology field.
Background technology
High speed development along with present informationization, various computer applications are more and more, each large-scale building, main equipment, hot operation district working equipment all generally the system of using a computer carry out work such as signal controlling, detection, monitoring and information processing, and these zones are also very high to the requirement of signal cable.Large-scale building require cable that high security performance and environmental-protecting performance are arranged, and when fire takes place, can not produce toxic gas; Some signal cable passes through some high temperature areas possibly in laying, so also require cable to possess heat resistance preferably.
Existing normal signal cable is owing to use polyethylene insulation, its heat resistance is very poor, high-temperature resistant performance can only reach 70 ℃, and cable cover(ing) uses pvc sheath, contain the chlorine element in its material, cable can produce poisonous hydrogen chloride gas if run into fire, because cable conductor adopts the pure cu conductor transmission signals, make the cost of cable higher simultaneously.
Summary of the invention
The purpose of this utility model provides the composite conductor environment friendly flame-retardant signal cable that a kind of economic performance is good, heat resistance is good, antijamming capability is strong, signal transmission quality is high.
Technical solution of the present utility model is: composite conductor environment friendly flame-retardant signal cable, comprise single core insulation core, by the stranded line group of some single core insulation cores, by the stranded cable core of some line groups, fill, it is characterized in that single core insulation core is made of the insulating barrier of composite conductor and its outsourcing, by the outer wrapped one deck polyester belt of the stranded line group of some single core insulation cores, polyester belt is surrounded with screen outward, by the outer fire-retardant belt of wrapped one deck of the stranded cable core of some line groups, on fire-retardant belt, be surrounded with total screen, be extruded with the low-smoke and halogen-free flame retardant polyolefin jacket layer on total screen.
Because the signal of signal cable transmission is generally high-frequency signal, the high-frequency signal electric current mainly concentrates on the surface conductor layer transmission during by conductor, produces so-called " skin effect ", and in conductor core electric current transmitted seldom, even do not have electric current to pass through.So above-mentioned novel signal cable composite conductor adopts the composite construction conductor of copper cover aluminum, guaranteeing having reduced production cost, to have improved product economy greatly under the stable situation of cable signal transmission; The insulating barrier of outsourcing is a crosslinked polyethylene on the composite conductor, adopts crosslinked polyethylene insulation material, makes cable that higher heat resistance be arranged, and mechanical strength is higher, and has low electric capacity, low fade performance.
Line group of the present utility model is carried out the stranded line group of forming by two or three or four single core insulation cores, and (in the polyester belt) also has a branch colour band around bundle on each line group.Cable two core groups adopt red, white colour, and three core groups adopt red, green, white colour, and the four-core group adopts red, green, white, blue color, is convenient to identifying operation; It is stranded that every group of core adopts the different pitch that is not more than 40 times of core external diameters to carry out, and online group of outer lapped shielding layer, and the crosstalk attenuation that has improved signal cable greatly hangs down index and interference free performance.
How many line groups are several line groups (adopt to carry out according to user's needs, can adopt 2～61 groups of core groups to carry out stranding and be twisted into cable core) be twisted into cable core with suitable pitch, and outside cable core the fire-retardant band of wrapped one deck, the total screen of wrapped again one deck on fire-retardant band has improved transmission performance, fire resistance and the interference free performance of cable; On total screen, extrude the low smoke halogen-free flame-retardant polyolefin sheath, improved the fire resistance of cable, guarantee that cable does not contain poisonous halogen element, meet the environmental-protecting performance requirement.
Total screen of the screen of each line group and cable core is aluminium-plastic tape, copper strips, copper wire braiding or copper cover aluminum braid, and fire-retardant belt is a glass fiber tape.
The utility model signal cable is rational in infrastructure, and the selection science is economical and practical, and function admirable has following premium properties index:
1. cable allows long-term serviceability temperature can reach 90 ℃, when instantaneous short circuit takes place (being no more than 5s), can allow conductor temperature to reach 250 ℃.
2. the cable-flame retardant performance can reach the requirement of table 4 code name ZB among the GB/T19666-2005 " fire-retardant and fire-resistant wire and cable general rule ".
3. cable Halogen characteristic performance can reach the requirement of table 6 code name W among the GB/T19666-2005 " fire-retardant and fire-resistant wire and cable general rule ".
4. the low cigarette characteristic performance of cable can reach the requirement of table 7 code name D among the GB/T19666-2005 " fire-retardant and fire-resistant wire and cable general rule ".
Description of drawings
Fig. 1 is the structural representation of 2 heart yearn core group types of the present utility model
Fig. 2 is the structural representation of 3 heart yearn core group types of the present utility model
Fig. 3 is the structural representation of 4 heart yearn core group types of the present utility model
Embodiment:
On copper cover aluminum composite conductor 1, extrude crosslinked polyetylene insulated layer 2 and constitute single core insulation core, thoroughly do away with the edge core by two or three or four then and carry out the stranded line group of forming, and on each line group around pricking a branch colour band 3, the outer wrapped one deck polyester belt 4 of each twisted wire group, polyester belt 4 outer wrapped again screens 5, the line group of some band screens is twisted into cable core, fill with dustless mineral wool rope 7 between each cable core, wrapped one deck inhibiting tape 6 outside cable core, wrapped total screen 8 on fire-retardant belt, and then on wrapped total screen 8, extrude low-smoke and halogen-free flame retardant polyolefin jacket layer 9.
Claims (5)
1. composite conductor environment friendly flame-retardant signal cable, comprise single core insulation core, by the stranded line group of some single core insulation cores, by some line groups stranded cable core, filling, it is characterized in that single core insulation core is made of the insulating barrier of composite conductor and its outsourcing, by the outer wrapped one deck polyester belt of the stranded line group of some single core insulation cores, polyester belt is surrounded with screen outward, by the outer fire-retardant belt of wrapped one deck of the stranded cable core of some line groups, on fire-retardant belt, be surrounded with total screen, be extruded with the low-smoke and halogen-free flame retardant polyolefin jacket layer on total screen.
2. composite conductor environment friendly flame-retardant signal cable according to claim 1, the composite conductor that it is characterized in that single core insulation core are copper cover aluminum composite construction conductors, and insulating barrier is a crosslinked polyethylene.
3. composite conductor environment friendly flame-retardant signal cable according to claim 1 is characterized in that on each line group, around bundle a branch colour band is arranged in the polyester belt.
4. composite conductor environment friendly flame-retardant signal cable according to claim 1 is characterized in that the screen of each line group and total screen of cable core are aluminium-plastic tape or copper strips or copper wire braid or copper cover aluminum braid.
5. composite conductor environment friendly flame-retardant signal cable according to claim 1 is characterized in that the outer fire-retardant belt of cable core is a glass fiber tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200304577U CN201142250Y (en) | 2008-01-07 | 2008-01-07 | Composite conductor environment friendly flame-proof type signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200304577U CN201142250Y (en) | 2008-01-07 | 2008-01-07 | Composite conductor environment friendly flame-proof type signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201142250Y true CN201142250Y (en) | 2008-10-29 |
Family
ID=40069960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200304577U Expired - Fee Related CN201142250Y (en) | 2008-01-07 | 2008-01-07 | Composite conductor environment friendly flame-proof type signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201142250Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855991A (en) * | 2012-09-07 | 2013-01-02 | 江苏远大电缆有限公司 | Polyvinyl chloride insulation color separating cable |
| CN103871583A (en) * | 2014-02-24 | 2014-06-18 | 安徽华海特种电缆集团有限公司 | Low-smoke halogen-free K3-grade computer cable for 1E type nuclear power station |
| CN104575803A (en) * | 2013-10-18 | 2015-04-29 | 宁夏海洋线缆有限公司 | Flame-retardant cable |
| CN112133470A (en) * | 2020-09-23 | 2020-12-25 | 安徽国信电缆科技股份有限公司 | Cross-linked polyethylene insulation low-smoke halogen-free flame-retardant computer cable |
-
2008
- 2008-01-07 CN CNU2008200304577U patent/CN201142250Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855991A (en) * | 2012-09-07 | 2013-01-02 | 江苏远大电缆有限公司 | Polyvinyl chloride insulation color separating cable |
| CN104575803A (en) * | 2013-10-18 | 2015-04-29 | 宁夏海洋线缆有限公司 | Flame-retardant cable |
| CN103871583A (en) * | 2014-02-24 | 2014-06-18 | 安徽华海特种电缆集团有限公司 | Low-smoke halogen-free K3-grade computer cable for 1E type nuclear power station |
| CN112133470A (en) * | 2020-09-23 | 2020-12-25 | 安徽国信电缆科技股份有限公司 | Cross-linked polyethylene insulation low-smoke halogen-free flame-retardant computer cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20100208 |