CN202049800U - Symmetrical communication cable for fireproof ship - Google Patents
Symmetrical communication cable for fireproof ship Download PDFInfo
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- CN202049800U CN202049800U CN2011201488832U CN201120148883U CN202049800U CN 202049800 U CN202049800 U CN 202049800U CN 2011201488832 U CN2011201488832 U CN 2011201488832U CN 201120148883 U CN201120148883 U CN 201120148883U CN 202049800 U CN202049800 U CN 202049800U
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Abstract
The utility model discloses a symmetrical communication cable for fireproof ship, comprising four conductor groups and an inner filler, characterized in that the four conductor groups are symmetrically annularly distributed with the inner filler as the center, each of the four conductor groups is respectively composed of two tin-coated copper wire conductors with a fireproof layer coated on the outside, the outside of each of the four conductor groups is coated with an insulating layer, the outside of the four conductor group is coated with an inner sheath layer, a plurality of outer fillers are arranged between the inner sheath layer and the insulating layers, the plurality of outer fillers are made of fine steel wire, the outside of the inner sheath layer is coated with an armored layer and an outer sheath layer sequentially. The structure of the communication cable is compact; the outside of each conductor is coated with a fireproof layer, the special structure of the fireproof layer enhances the fireproof characteristic and has shielding effect at the same time; the inner side and outer side of the conductor groups are provided with the inner filler and the outer fillers, the tensile strength of the cable is enhanced, and the terminal impedance, impedance, attenuation constant and crosstalk performance of the cable are all meet the requirements of practical operation.
Description
Technical field:
The utility model relates to the shipboard cable field, relates in particular to a kind of fire-resistant symmetrical expression telecommunication cable peculiar to vessel.
Background technology:
Telecommunication cable is meant the cable of the high frequency carrier that is used for low coverage voice communication and long distance and digital communication and signal transmission, is one of China's five big cable products.The purposes and the scope of application according to telecommunication cable, can be divided into six big series of products, promptly city communication cable (comprises paper insulation city words cable, polyolefin insulation polyolefin jacket city words cable), long distance symmetric cable (comprises paper insulation low-and high-frequency long distance symmetric cable, copper core foamed polyethylene low-and high-frequency long distance symmetric cable and Digital Transmission long distance symmetric cable), coaxial cable (comprises small diameter coaxial cable, in coaxial and small coaxial cable), submarine cable (can divide symmetrical seabed and coaxial submarine cable), fiber optic cables (comprise traditional cable type, three kinds of banded array type and matrix types), radio frequency cable (comprising symmetrical radio frequency and coaxial radio-frequency).
Though its manufacturing process of different cables has certain difference, its general character is arranged with regard to its total processing method.Stablize for the physical dimension that guarantees cable, good electric property is arranged, the production order of cable is taked to carry out from inside to outside by its structure.Whole manufacturing process is divided into the manufacturing of insulated wire cores, and the line group is stranded, coaxial right manufacturing, cabling process, cable core drying, the metallic sheath of cable and the manufacturing of outer jacket.
The electrical technology index project of telecommunication cable is many and high.General metal cables has conductor resistance, insulation resistance, mutual capacitance, dielectric strength, requirements such as capacity unmbalance.For long-distance and coaxial cable, except that above requirement, also has terminal impedance, impedance irregularity, attenuation constant, specific (special) requirements such as cross-talk.
Can not satisfy the real work demand at performances such as the fire resistance of original cable, new energy of stretch-proof, impedance, cross-talks, the utility model adopts several conductor group symmetrical expressions arrangements, compact conformation; Conductor is wrapped with and is mingled with one deck between the two-layer fire-resistant isinglass belt of flame retardant coating-employing and weaves webbed tin plated steel wire, plays the effect of shielding when having strengthened fire-resistance property; Fill out core in the outside is respectively equipped with in the conductor group, fill out core outward, strengthen the tensile strength of cable, make cable in burning situation, can keep circuit complete or under the flame condition of regulation, can keep normal operation within a certain period of time.
The utility model content:
The purpose of this utility model provides a kind of fire-resistant symmetrical expression telecommunication cable peculiar to vessel, is applicable to signal transmission and control system in telecommunications peculiar to vessel, electronic computer, the messaging device, has improved fire-resistance property, stretch-proof characteristic, the shielding character of cable.
The technical solution of the utility model is as follows:
Fire-resistant symmetrical expression telecommunication cable peculiar to vessel, comprise four conductor groups, in fill out core, it is characterized in that: described four conductor groups with glass fiber and flame retardant type glass fibre be mixed and made in to fill out core be center symmetrical expression annular spread, described four conductor groups constitute by the tinned copper wire conductor of two outside parcel flame retardant coatings is stranded respectively, and resistivity is less than 0.017240 Ω during 20 ℃ of tinned copper wire conductors. mm
2/ m, described flame retardant coating weaves by being mingled with one deck between the two-layer fire-resistant isinglass belt that webbed tin plated steel wire is wrapped to be constituted, described four conductor groups are enclosed with insulating barrier outward respectively, described four conductor groups outside is enclosed with inner restrictive coating, be provided with several outer cores of filling out between described inner restrictive coating and the insulating barrier, described several outer core of filling out adopts finer wire, and the described inner restrictive coating outside is enclosed with armour, external sheath layer successively.
Described fire-resistant symmetrical expression telecommunication cable peculiar to vessel is characterized in that: it is crosslinked polyethylene that described insulating barrier adopts material.
Described fire-resistant symmetrical expression telecommunication cable peculiar to vessel is characterized in that: described armour adopts the zinc-coated wire braiding to constitute.
The utility model has the advantages that:
The utility model adopts several conductor group symmetrical expressions to arrange compact conformation; Conductor is wrapped with and is mingled with one deck between the two-layer fire-resistant isinglass belt of flame retardant coating-employing and weaves webbed tin plated steel wire, plays the effect of shielding when having strengthened fire-resistance property; Fill out core in the outside is respectively equipped with in the conductor group, fill out core outward, strengthen the tensile strength of cable, the terminal impedance of cable simultaneously, impedance, attenuation constant, the cross-talk performance all satisfies the real work demand.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Fire-resistant symmetrical expression telecommunication cable peculiar to vessel, comprise four conductor groups 1, in fill out core 2, four conductor groups 1 with glass fiber and flame retardant type glass fibre be mixed and made in to fill out core 2 be center symmetrical expression annular spread, four conductor groups 1 constitute by the tinned copper wire conductor 4 of two outside parcel flame retardant coatings 3 is stranded respectively, and resistivity is less than 0.017240 Ω during 420 ℃ of tinned copper wire conductors. mm
2/ m, flame retardant coating 3 weaves by being mingled with one deck between the two-layer fire-resistant isinglass belt that webbed tin plated steel wire is wrapped to be constituted, four conductor group 1 outer insulating barriers 5 that are enclosed with respectively, four conductor group 1 outsides are enclosed with inner restrictive coating 6, be provided with several outer cores 7 of filling out between inner restrictive coating 6 and the insulating barrier 5, several outer cores 7 of filling out adopt finer wire, and inner restrictive coating 6 outsides are enclosed with armour 8, external sheath layer 9 successively, it is crosslinked polyethylene that insulating barrier 5 adopts material, and armour 8 adopts the zinc-coated wire braiding to constitute.
Claims (3)
1. fire-resistant symmetrical expression telecommunication cable peculiar to vessel, comprise four conductor groups, in fill out core, it is characterized in that: described four conductor groups with glass fiber and flame retardant type glass fibre be mixed and made in to fill out core be center symmetrical expression annular spread, described four conductor groups constitute by the tinned copper wire conductor of two outside parcel flame retardant coatings is stranded respectively, and resistivity is less than 0.017240 Ω during 20 ℃ of tinned copper wire conductors. mm
2/ m, described flame retardant coating weaves by being mingled with one deck between the two-layer fire-resistant isinglass belt that webbed tin plated steel wire is wrapped to be constituted, described four conductor groups are enclosed with insulating barrier outward respectively, described four conductor groups outside is enclosed with inner restrictive coating, be provided with several outer cores of filling out between described inner restrictive coating and the insulating barrier, described several outer core of filling out adopts finer wire, and the described inner restrictive coating outside is enclosed with armour, external sheath layer successively.
2. fire-resistant symmetrical expression telecommunication cable peculiar to vessel according to claim 1 is characterized in that: it is crosslinked polyethylene that described insulating barrier adopts material.
3. fire-resistant symmetrical expression telecommunication cable peculiar to vessel according to claim 1 is characterized in that: described armour adopts the zinc-coated wire braiding to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201488832U CN202049800U (en) | 2011-05-12 | 2011-05-12 | Symmetrical communication cable for fireproof ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201488832U CN202049800U (en) | 2011-05-12 | 2011-05-12 | Symmetrical communication cable for fireproof ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202049800U true CN202049800U (en) | 2011-11-23 |
Family
ID=44990100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201488832U Expired - Fee Related CN202049800U (en) | 2011-05-12 | 2011-05-12 | Symmetrical communication cable for fireproof ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202049800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751026A (en) * | 2012-07-20 | 2012-10-24 | 安徽江淮电缆集团有限公司 | Environment-friendly digital symmetrical cable |
| CN104851503A (en) * | 2015-04-13 | 2015-08-19 | 扬州春天线缆有限公司 | Fireproof low-smoke halogen-free twisted pair wire |
-
2011
- 2011-05-12 CN CN2011201488832U patent/CN202049800U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751026A (en) * | 2012-07-20 | 2012-10-24 | 安徽江淮电缆集团有限公司 | Environment-friendly digital symmetrical cable |
| CN104851503A (en) * | 2015-04-13 | 2015-08-19 | 扬州春天线缆有限公司 | Fireproof low-smoke halogen-free twisted pair wire |
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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: 20111123 Termination date: 20130512 |