CN202404945U

CN202404945U - Twisted line pair

Info

Publication number: CN202404945U
Application number: CN2011205260793U
Authority: CN
Inventors: 徐侨; 韩龙
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: 2012-08-29
Anticipated expiration: 2021-12-16

Abstract

The utility model relates to a twisted line pair, which comprises a cable conductor, a cable insulator, a polyethylene terephthalate (PET) taped covering, a drainage lead and an aluminum foil shield layer, wherein the cable insulator includes the cable conductor to form a pair of cables, the cables are pair twisted to form an entirety which is covered by the PET taped covering, the aluminum foil shield layer is arranged outside the PET taped covering at intervals, and the drainage lead is arranged between the PET taped covering and the aluminum foil shield layer. The twisted line pair is low in cost and capable of conducting electricity and transmitting signals, and the defect that a category five cable and a category six cable can not meet requirements of a large pair number and a long distance transmission is overcome. The scheme of the twisted line pair is simple in structure and practical.

Description

A kind of strand is right to line

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 strand of signal transmission right to line, 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

The utility model purpose be proposed for the deficiency that overcomes prior art a kind of cost low but both can to conduct electricity the strand of signal transmission right to line.

For achieving the above object, the technical scheme that the utility model adopts is: a kind of strand is right to line, comprises cable conductor, cable insulation, PET lapping layer, drain wire, foil shielding layer; Said cable insulation comprises cable conductor and forms a cable; Said cable has a pair of, and said cable forms an integral body to pair twist, is wrapped up by the PET lapping layer; 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.

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 strand of the utility model to low not only can the conducting electricity but also the signal transmission of cost, has solved the shortcoming that 5 types of lines, 6 types of lines can not satisfy big logarithm, long Distance Transmission to line; 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 strand of the utility model sectional view right to line;

Wherein: 1, cable conductor; 2, cable insulation; 3, cable; 4, PET lapping layer; 5, drain wire; 6, foil shielding layer.

Embodiment

A kind of strand that is depicted as the utility model like accompanying drawing 1 is right to line, comprises cable conductor 1, cable insulation 2, PET lapping layer 4, drain wire 5, foil shielding layer 6; Said cable insulation 2 comprises cable conductor 1 and forms a cable 3; Said cable 3 has a pair of, and said cable forms an integral body to pair twist, and by PET lapping layer 4 parcels, the pair twist pitch of said cable should meet decay, the cross-talk specification requirement of finished cable; Said foil shielding layer 6 is arranged on outside the PET lapping layer 4 at interval; Said drain wire 5 is arranged between PET lapping layer 4 and the foil shielding layer 6; Said cable insulation 2 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. a strand is right to line, it is characterized in that: comprise cable conductor, cable insulation, PET lapping layer, drain wire, foil shielding layer; Said cable insulation comprises cable conductor and forms a cable; Said cable has a pair of, and said cable forms an integral body to pair twist, is wrapped up by the PET lapping layer; 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.

2. strand according to claim 1 is right to line, 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.