CN202434218U

CN202434218U - Cable for instrument

Info

Publication number: CN202434218U
Application number: CN2011205260717U
Authority: CN
Inventors: 徐侨; 夏玉龙
Original assignee: Suzhou Donghu Cable Co Ltd
Current assignee: Suzhou Donghu Cable Co Ltd
Priority date: 2011-12-16
Filing date: 2011-12-16
Publication date: 2012-09-12
Anticipated expiration: 2021-12-16

Abstract

The utility model relates to a cable for an instrument, which comprises cable conductors, cable insulators, twisted pairs, a PET wrapping layer, a drainage wire, an aluminum foil shielding layer, an inner sheath, a steel wire armored layer and a cable outer sheath, wherein a cable is formed in a way that each cable insulator comprises a cable conductor; each twisted pair is formed by a pair of cables through twisting; the PET wrapping layer wraps the plurality of twisted pairs; the aluminum foil shielding layer is arranged outside the PET wrapping layer at intervals; the drainage wire is arranged between the PET wrapping layer and the aluminum foil shielding layer; the inner sheath wraps the aluminum foil shielding layer; the steel wire armored layer wraps the inner sheath; and the cable outer sheath wraps the steel wire armored layer. The cable provided by the utility model, which is cost-saving, can be used for electric conduction and signal transmission.

Description

A kind of instrument and meter is used cable

Technical field

The utility model relates to a kind of cable, but especially a kind of cost low not only can conduct electricity but also the instrument and meter of signal transmission is used cable, belong to the cable technology field.

Background technology

Along with a large amount of exploitation of Australia and African country mine, the construction energetically of public transport such as foreign subway, skyscraper are rised sheer from level ground.Mine, subway are equipped with a large amount of instrument and meters, in the loud building a large amount of safety, fire-fighting instrument are arranged.Common control cable does not possess signal transfer functions, and only suitable transmission current plays the power supply control of current signal to air switch through current conversion; 5 types of lines in present data cable such as the netting twine, 6 types of lines, optical cable etc. are because high to the production equipment precision prescribed, connect complex process, the data-signal conversion is complicated, and in being not suitable for, the low-frequency data handshaking, and production cost is high, and difficult quilt is accepted; And these instrument control power supplies and signal adopt common electric wire or control cable cost too high, and a lot of electric wires is not suitable for instrument and meter, safe fire-fighting control.

Use the instrument and meter cable from exploitation, and successful using in foreign country, it is blank to fill up China's electric wire instrument and meter standard, helps promoting electric wire Development and Production according to the actual requirements, to reduce the waste to resource.

The utility model content

But the utility model purpose is to have proposed the low instrument and meter of signal transmission of both can conducting electricity of a kind of cost to use cable for the deficiency that overcomes prior art.

For achieving the above object; The technical scheme that the utility model adopts is: a kind of instrument and meter is used cable, comprises cable conductor, cable insulation, twisted pair wire to, PET lapping layer, drain wire, foil shielding layer, inner sheath, wire armoring layer, cable jacket; Said cable insulation comprises cable conductor and forms a cable; Said twisted pair wire is to being formed by a pair of said cable pair twist; Said twisted pair wire is a plurality of to having, and by PET lapping layer parcel, said foil shielding layer is arranged on outside the PET lapping layer at interval; Said drain wire is arranged between PET lapping layer and the foil shielding layer; Said inner sheath parcel foil shielding layer; Said wire armoring layer parcel inner sheath; Said cable jacket wrapped wire armour.

Preferably, said cable insulation employing poly (vinyl chloride) blend plastics or vinyon or crosslinked polyethylene plastic or low-smoke halogen-free polyolefin plastics are processed.

Because the utilization of technique scheme, the utility model compared with prior art has advantage:

But the described instrument and meter of the utility model be with low not only can the conducting electricity but also the signal transmission of cable cost, solved the shortcoming that 5 types of lines, 6 types of lines can not satisfy big logarithm, long Distance Transmission; The utility model scheme is provided with wire armoring, can directly be laid in soil, the road, also can vertical run in vertical shaft, of many uses, overcome 5 types of lines, 6 types of lines only are suitable for 4 pairs of wire routings, the signal transmission flaws in a loop; The utility model scenario-frame is simple, practical.

Description of drawings

Below in conjunction with accompanying drawing the utility model technical scheme is described further:

Accompanying drawing 1 is the sectional view of the instrument and meter of the utility model with cable;

Wherein: 11, cable conductor; 12, cable insulation; 13, twisted pair wire is right; 14, PET lapping layer; 15, drain wire; 16, foil shielding layer; 17, inner sheath; 18, wire armoring layer; 19, cable jacket.

Embodiment

A kind of instrument and meter that is depicted as the utility model like accompanying drawing 1 is used cable, comprise cable conductor 11, cable insulation 12, twisted pair wire to 13, PET lapping layer 14, drain wire 15, foil shielding layer 16, inner sheath 17, wire armoring layer 18, cable jacket 19; Said cable insulation 12 comprises cable conductor 11 and forms a cable (not marking); Said twisted pair wire is formed by a pair of said cable pair twist 13; The pair twist pitch of said cable should meet decay, the cross-talk specification requirement of finished cable; Said twisted pair wire has 18 to 13, and by PET lapping layer 14 parcels, said foil shielding layer 16 is arranged on outside the PET lapping layer 14 at interval; Said drain wire 15 is arranged between PET lapping layer 14 and the foil shielding layer 16; Said inner sheath 17 parcel foil shielding layers 16; Said wire armoring layer 18 parcel inner sheath 17; Said cable jacket 19 wrapped wire armours 18; Said cable insulation 12 employing poly (vinyl chloride) blend plastics or vinyon or crosslinked polyethylene plastic or low-smoke halogen-free polyolefin plastics are processed.

Below only be the concrete exemplary applications of the utility model, the protection range of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the utility model rights protection scope.

Claims

1. an instrument and meter is used cable, it is characterized in that: comprise cable conductor, cable insulation, twisted pair wire to, PET lapping layer, drain wire, foil shielding layer, inner sheath, wire armoring layer, cable jacket; Said cable insulation comprises cable conductor and forms a cable; Said twisted pair wire is to being formed by a pair of said cable pair twist; Said twisted pair wire is a plurality of to having, and by PET lapping layer parcel, said foil shielding layer is arranged on outside the PET lapping layer at interval; Said drain wire is arranged between PET lapping layer and the foil shielding layer; Said inner sheath parcel foil shielding layer; Said wire armoring layer parcel inner sheath; Said cable jacket wrapped wire armour.

2. instrument and meter according to claim 1 is used cable, it is characterized in that: said cable insulation employing poly (vinyl chloride) blend plastics or vinyon or crosslinked polyethylene plastic or low-smoke halogen-free polyolefin plastics are processed.