WO2016114594A1 - Câble utp - Google Patents

Câble utp Download PDF

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Publication number
WO2016114594A1
WO2016114594A1 PCT/KR2016/000373 KR2016000373W WO2016114594A1 WO 2016114594 A1 WO2016114594 A1 WO 2016114594A1 KR 2016000373 W KR2016000373 W KR 2016000373W WO 2016114594 A1 WO2016114594 A1 WO 2016114594A1
Authority
WO
WIPO (PCT)
Prior art keywords
pitch
pair
utp cable
pair unit
unit
Prior art date
Application number
PCT/KR2016/000373
Other languages
English (en)
Korean (ko)
Inventor
이우경
김태성
김태우
조영일
Original Assignee
엘에스전선 주식회사
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 엘에스전선 주식회사 filed Critical 엘에스전선 주식회사
Publication of WO2016114594A1 publication Critical patent/WO2016114594A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/04—Cables with twisted pairs or quads with pairs or quads mutually positioned to reduce cross-talk
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/026—Alloys based on copper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10—Screens specially adapted for reducing interference from external sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame

Definitions

  • the present invention relates to an unshielded twisted pair (UTP) cable. Specifically, the present invention relates to a UTP cable that is excellent in data transmission capacity and structurally stable.
  • UTPC unshished twisted pair cable is a type of signal transmission line that connects the environment of a general telephone line or a LAN, and is made of plastic material outside the pair unit made by twisting two insulated copper wires together. It is named after the line wrapped with ( ⁇ ⁇ urine).
  • FIG. 1 schematically shows a cross-sectional structure of one embodiment of a conventional four-pair UTP cable.
  • each of the plurality of pair units 600 has a constant pitch of two conductors 60 made of a conductor 61 coated with an insulating layer 62. It is formed in a twisted structure, respectively.
  • the impedance varies according to the twist pitch, that is, the large pitch and the aggregate pitch, and as a result, sudden attenuat ions occur in a specific frequency band, or a current flowing through each pair unit 600 is formed. Due to the electromagnetic field, a phenomenon that is adversely affected, such as noise, may occur in a transmission signal of another pair unit 600 adjacent to each other, that is, a crosstalk phenomenon may occur suddenly.
  • the crosstalk phenomenon is a bad influence on the data transmission capacity of the UTP cable.
  • This reduction of crosstalk is very important in CAT8 (Category 8) UTP cables, which are capable of transmitting data at 40 Gbps at frequencies below 2 Ghz, especially in the classification of UTP cables according to data transmission capacity.
  • the conventional and four-pair UTP cable is connected between the pair unit 600 through a separator 800 including a plurality of partition walls disposed between each of the plurality of pair units 600.
  • the physical separation between the two attempts to suppress the crosstalk phenomenon, but even the separator 800 can not simultaneously suppress the crosstalk between all pair unit 600 below the standard, especially in the UTP cable of CAT8 It was more difficult to keep the torque below the specification.
  • Figure 2 schematically shows a cross-sectional structure of another embodiment of a conventional four-pair UTP cable.
  • the conventional four-pair UTP cable included a separator 800 having an increased thickness of the partition wall disposed between the pair oils 600, in which the crosstalk phenomenon is particularly severe.
  • the cross-section of the UTP cable including the malleable separator 800 has a roundness of 3 ⁇ 4 to form a complete circle.
  • the cable can be partially twisted, and the data transmission capability of the cable may be degraded by changing the design of the twisted pitch of the pair unit 600.
  • the present invention provides the data transmission capability required in the CAT8 UTP cable
  • the purpose is to provide a UTP cable.
  • a pair of sheaths covering four pair units and all four pair units formed by twisting a plurality of conductors including a conductor and an insulator surrounding the conductors, and an aggregate pitch of the four pair units as a whole. Provides OTP cable, virtually free.
  • the edge pitch 0 of the shortest pair unit which is the twisted pitch of the plurality of conductive wires constituting each of the four pair units, is 0 mm or more, and the edge features (y, z) of each of the other pair units are different.
  • w provides a UTP cable that meets the following conditions:
  • the four pair unit provides a UTP cable, characterized in that it comprises an individual sheath surrounding the plurality of conductors constituting it.
  • the four pair units include first to fourth pair units sequentially arranged in a clockwise direction, and the first pair unit and the third pair unit are formed from a resin composition whose insulator comprises a low density polyethylene resin. And an insulator thereof between the second pair unit and the fourth pair unit is formed from a resin composition comprising a pulley vinyl chloride resin, wherein the first pair unit has the major pitch (X), A unit having said large edge pitch (z), said third pair unit having said large edge pitch (y), and said fourth pair unit having said large edge pitch (w). .
  • the four-pair unit includes the first to the fourth pair of units that are arranged in the clockwise direction by one, and the insulator of the first to fourth pair of units is to be formed from a resin composition comprising a low density polyethylene resin
  • the first pair unit has a large edge pitch (X)
  • the second pair unit has the large edge pitch (y) or the large edge pitch (z)
  • the second pair unit has the large edge pitch (y)
  • the third pair unit has the large edge pitch (z)
  • the third pair unit has the large edge pitch (y)
  • the fourth pair unit provides the UTP cable, characterized in that having the large pitch O).
  • the individual sheath provides a UTP cable, characterized in that consisting of a flame retardant polyvinyl chloride resin or a flame retardant polyoleprene resin.
  • the UTP cable characterized in that it further comprises a filler including one or more partitions spaced apart from each other between each of the first to fourth pair units.
  • the plurality of partitions and the thickness is provided with a UTP cable, characterized in that 0.6 to 1 ⁇ .
  • the UTP cable characterized in that it further comprises an outer shielding layer disposed between the pair unit and the sheath.
  • the conductor is a single wire or stranded copper, interlocking or tin-plated copper
  • the insulator is made of a flame retardant polyolefin resin, a fluorocarbon resin or a halogenated polyolefin resin
  • the sheath is flame retardant polyvinyl chloride resin or flame retardant polyolefin resin Characterized in that, provides a UTP cable.
  • the thickness of the insulator is 0.5 to 0.61 ⁇
  • the thickness of the sheath is 0.3 to 0.55 ⁇
  • UTP cable is provided.
  • the UTP cable according to the present invention precisely controls the pitch of each of the plurality of pairs and the pair unit, while substantially eliminating the aggregate pitch of the entire plurality of the pair units, thereby reducing the return loss and signal attenuation for signal transmission.
  • FIG. 1 schematically illustrates a cross-sectional structure of one embodiment of a conventional four-pair (4-pair) UTP cable.
  • Figure 2 schematically shows a cross-sectional structure of another embodiment of a conventional four-pair UTP cable.
  • Figure 3 schematically shows a cross-sectional structure of one embodiment of a UTP cable according to the present invention.
  • Figure 4 shows the results of the near end crosstalk (EXT) evaluation for the UTP cable specimen of the embodiment.
  • FIG. 3 schematically shows a cross-sectional structure of one embodiment of a UTP cable according to the present invention.
  • the UTP cabling according to the present invention is a conductor such as copper
  • a plurality of, for example, four pair units (pari unit) each formed by a plurality of, for example, two conductors 110 covered by an insulator 112 are twisted with each other at a constant pitch. 100) and a sheath 400 which is an outer jacket surrounding the plurality of pair units 100.
  • the conductor 111 may be made of a material such as annealed copper, tinned copper, or the like, and may be a sol id wire or a stranded wire.
  • the outer diameter may be about 0.5 to 0.6 mm 3
  • the conductor 111 is a stranded wire, the wire diameter may be about 0.203 I mm.
  • the insulator 112 is formed of a resin composition, in the case of a plenum (Plerium) -type cable that requires high flame retardancy, in order to ensure the flame retardant polytetraflofluoroethylene (PTFE) resin, fluorine ash " Fluorinated ethylene propylene (FEP) resins, halogenated polyolefin resins such as polyvinyl chloride (PVC), fluorinated resins such as perf hior inated acid (PFA), fire-retardant polyethylene (Fire-resistant) It may be made of flame retardant pulley olefin resin such as ethylene (Pol ethylene; FRPE), flame-retardant polypropylene (FRPP). In addition, the thickness of the insulator 112 may be about 0.5 to 0.61 i.
  • Conventional UTP cable has a structure in which all of the plurality of pair units constituting it are twisted with each other at a constant pitch, where the twist pitch of the entire plurality of pair units is referred to as an aggregate pitch.
  • Conventional UTP cable has a crosstalk that is adversely affected by attenuat ions and noise generated in transmission signals of other adjacent pair units by electromagnetic fields generated by currents flowing through the respective pair units according to the aggregate pitch. Crosstalk can occur rapidly in certain frequency bands. Therefore, the present inventors, unlike the conventional UTP cable, crosstalk for signal transmission even when all of the plurality of pair units 100 constituting the UTP cable according to the present invention do not have a structure twisted with each other at a constant pitch. The present invention was completed by experimentally confirming that the phenomenon can be effectively suppressed.
  • the UTP cable according to the present invention is substantially free of the aggregate pitch which is the twist pitch of the entire plurality of pair units 100.
  • the fact that the aggregate pitch of the plurality of pair units 100 is substantially absent is that the plurality and the conductors 110 may be omitted except for partial or total twist, which inevitably occurs naturally in a production process such as extrusion and winding. This means that there are no artificially imparted twists to the entirety of the plurality of pair units before the plurality of pair units have been gathered and composed of the pair unit 100 at a constant pitch before being gathered and fed into the sheath extruder.
  • the UTP cable according to the present invention has a structure in which the plurality of outer conductors 110 constituting the plurality of pair units 100 are twisted with each other at a constant pitch such that the plurality of pairs of conductors 110 are not twisted with each other.
  • the pitch is called pitch.
  • Attenuat ions and crosstalk may occur in a specific frequency band depending on the additive pitch. Therefore, in order to suppress the occurrence of the signal attenuation and the crosstalk phenomenon for each frequency band of the UTP; cable, precise adjustment of the large pitch is required.
  • the large edge pitch (X) of the pair unit 100 having the shortest large pitch pitch among the plurality of pair units 100 is 4 mm or more, and the large edge of each of the other pair units 100 is larger.
  • the pitch (y ⁇ z, w) can satisfy the following conditions for each frequency band of the UTP cable:
  • the operating frequency of the UTP cable is 500 MHz or less
  • the pair pitch 100 of the pair unit 100 having the shortest pitch among the plurality of pair units 100 is less than 4 mW
  • a plurality of conductors 111 are covered by the insulator 1120, for example, For example, less than 4 kW is preferable since the workability of the large-scale process of twisting the two conductors 110 as a constant pitch to form a pair unit is not only reduced, but also the penetration rate and the conductor resistance increase as the large-scale pitch is shortened.
  • the large pitch (y ⁇ z, w) of each of the other pair units 100 does not satisfy the above conditions for each maximum frequency band, the current flowing through each pair unit 100 forms an electromagnetic field. As a result, a crosstalk phenomenon may occur in which noise occurs in transmission signals of other adjacent pair units.
  • the first pair U 100 and the third pair unit 100 c have an insulator 112 thereof containing a low density polyethylene resin. It is formed from a resin composition, the second pair unit (100b) and the fourth pair unit (100d) may be formed from a resin composition whose insulator 112 comprises a polyvinyl chloride resin, the first pair unit (100a) ) Has a large pitch (X): a, the second pair unit (100b) has a large pitch (z), the third pair unit (100c) has a large pitch (y), and the fourth The pair unit 100d may have a large pitch w.
  • the insulators 112 of the plurality of pair units 100 constituting the UTP cable according to the present invention can all be formed from a resin composition containing a low density polyethylene resin, the first pair unit 100a is large Has a pitch (X), the second pen The air unit 100b has a large pitch pitch y or a large pitch pitch z, and the third pair unit 100c has a large pitch pitch z when the second pair unit 100b has a large pitch pitch y. And the second pair unit 100b has a large edge pitch z, a large edge pitch y, and the fourth pair unit 100d may have a large pitch w .
  • the UTP cable according to the present invention has substantially no aggregate pitch of the plurality of pair units 100, it is possible to suppress signal attenuation and crosstalk in a specific frequency band caused by the aggregate pitch, and at the same time, a plurality of pairs.
  • the pitch of each unit 100 By precisely controlling the pitch of each unit 100 as described above, an excellent effect can be effectively suppressed or minimized at the same time as crosstalk phenomenon for signal transmission.
  • the sheath 400 protects the plurality of pair units 100 from pressure or shock from the outside and blocks external interference by electromagnetic waves generated from adjacent cables or other electronic equipment. Perform the function.
  • the material of the sheath 400 is not particularly limited, but may be preferably formed from a resin composition including a flame retardant polyvinyl chloride (PVC) or a flame retardant polyolefin resin.
  • the flame retardancy of the flame retardant polyvinyl chloride (PVC) may have a limited oxygen index (L0I) of 48 to 65%.
  • the thickness of the sheath 400 may be different depending on the material forming the insulator 112 of the pair unit 100, for example, 0.3 to 0.55 ⁇ .
  • the pair unit 100 is connected to the plurality of conductive wires 110 in order to more reliably prevent the plurality of conductive wires 110 constituting the pair unit 100 from being separated from each other, thereby preventing impedance from changing.
  • the material of the individual sheath 120 is not particularly limited, and may be the same as or different from the material of the sheath 400.
  • the UTP cable according to the present invention may further include a filler 200.
  • the filler 200 further includes a plurality of partition walls that physically space the plurality of pair units 100, thereby further suppressing or minimizing crosstalk between the plurality of pair units 100. Stable placement of 100 Function to improve the structural stability of the UTP cable.
  • each partition wall constituting the filler 200 is attached to the inner wall of the sheath 400 or the outer shielding insect 300 to be described later, as shown in Figure 3 or separated from the inner wall by a predetermined distance separated Can be.
  • the thickness of each partition wall constituting the filler 200 may be substantially the same.
  • the UTP cable according to the present invention can easily suppress the roundness of the cross-section thereof, thereby effectively suppressing the data transmission capacity due to the partial twisting of the cable during the use of the UTP cable or the winding of the bobbin and the like and the change of the pitch design. It has an excellent effect.
  • the total thickness of the plurality of bulkheads constituting the filler 200 may be 0.6 to 1 mm 3, and may be 4.5 to 5 ⁇ m in length.
  • the UTP cable according to the present invention may further include an external shielding layer 300 between the plurality of pair units 100 and the sheath 400.
  • the outer shielding layer 300 serves to prevent signal interference between adjacent cables and to further enhance the flame retardancy of the UTP cable.
  • the external shield 300 may be made of a metal tape, a metal braid.
  • UTP cable according to the present invention may further include a lip cord 500 inside the: sheath '400.
  • the lip cord 500 is used to facilitate the stripping of the outer jacket 300, Kevlar aramid yarn, fiber glass epoxy rod, fiber reinforced polyethylene (FRP; Fiber Reinforced) Polyethylene), a high strength fiber, a galvanized steel wire, a steel wire or the like material can serve as a tensile wire for imparting tensile strength to the UTP cable.
  • FRP Fiber Reinforced
  • NEXT near end crosstalk was measured by a single ended measurement method using a network analyzer (product name: Agi lent 5071C) and a measurement kit (product name: ANSI / TIA-1183);
  • FIG. 4 illustrates the results of the near end crosstalk (NEXT) evaluation for the UTP cable specimen. As shown in FIG. 4, since the UTP cable according to the present invention has virtually no set pitch, it has been confirmed that rapid crosstalk between pair units does not occur and exhibits good signal transmission characteristics.
  • NXT near end crosstalk
  • Pair unit 200 Filler 300 : External shield layer 400 : Sheath 500 : Lip cord

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Communication Cables (AREA)

Abstract

La présente invention concerne un câble à paire torsadée non blindée (UTP). Spécifiquement, la présente invention concerne un câble UTP qui présente une excellente capacité de transmission de données et une excellente stabilité structurale.
PCT/KR2016/000373 2015-01-15 2016-01-13 Câble utp WO2016114594A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150007480A KR20160088497A (ko) 2015-01-15 2015-01-15 Utp 케이블
KR10-2015-0007480 2015-01-15

Publications (1)

Publication Number Publication Date
WO2016114594A1 true WO2016114594A1 (fr) 2016-07-21

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ID=56406077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2016/000373 WO2016114594A1 (fr) 2015-01-15 2016-01-13 Câble utp

Country Status (2)

Country Link
KR (2) KR20160088497A (fr)
WO (1) WO2016114594A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108597659A (zh) * 2017-03-08 2018-09-28 罗森伯格（上海）通信技术有限公司 光电混合金属丝铠装缆

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102181049B1 (ko) * 2019-02-19 2020-11-19 엘에스전선 주식회사 이더넷 케이블
KR20230125890A (ko) 2022-02-22 2023-08-29 엘에스전선 주식회사 가동용 이더넷 케이블

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002512420A (ja) * 1998-04-17 2002-04-23 プレストライト ワイヤ コーポレーション 高性能データケーブル
KR20070014451A (ko) * 2005-07-28 2007-02-01 엘에스전선 주식회사 고주파 신호 전송용 ｕｔｐ케이블
KR20100021093A (ko) * 2008-08-14 2010-02-24 엘에스전선 주식회사 유티피 케이블
JP2010232092A (ja) * 2009-03-27 2010-10-14 Hitachi Cable Ltd シールド付きツイストペアケーブル
KR20120027947A (ko) * 2010-09-14 2012-03-22 엘에스전선 주식회사 난연 차폐 테이프를 구비하는 통신용 케이블

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002512420A (ja) * 1998-04-17 2002-04-23 プレストライト ワイヤ コーポレーション 高性能データケーブル
KR20070014451A (ko) * 2005-07-28 2007-02-01 엘에스전선 주식회사 고주파 신호 전송용 ｕｔｐ케이블
KR20100021093A (ko) * 2008-08-14 2010-02-24 엘에스전선 주식회사 유티피 케이블
JP2010232092A (ja) * 2009-03-27 2010-10-14 Hitachi Cable Ltd シールド付きツイストペアケーブル
KR20120027947A (ko) * 2010-09-14 2012-03-22 엘에스전선 주식회사 난연 차폐 테이프를 구비하는 통신용 케이블

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108597659A (zh) * 2017-03-08 2018-09-28 罗森伯格（上海）通信技术有限公司 光电混合金属丝铠装缆

Also Published As

Publication number Publication date
KR20160088497A (ko) 2016-07-26
KR20220009478A (ko) 2022-01-24

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