CA2073906A1 - Fire-resistant cable for transmitting high frequency signals - Google Patents

Fire-resistant cable for transmitting high frequency signals

Info

Publication number
CA2073906A1
CA2073906A1 CA2073906A CA2073906A CA2073906A1 CA 2073906 A1 CA2073906 A1 CA 2073906A1 CA 2073906 A CA2073906 A CA 2073906A CA 2073906 A CA2073906 A CA 2073906A CA 2073906 A1 CA2073906 A1 CA 2073906A1
Authority
CA
Canada
Prior art keywords
plastic material
insulation system
pair
flame
fire
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2073906A
Other languages
French (fr)
Other versions
CA2073906C (en
Inventor
Luc Walter Adriaenssens
Richard Douglas Beggs
Harold Wayne Friesen
Wendell Glenn Nutt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Luc Walter Adriaenssens
Richard Douglas Beggs
Harold Wayne Friesen
Wendell Glenn Nutt
American Telephone And Telegraph Company
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 Luc Walter Adriaenssens, Richard Douglas Beggs, Harold Wayne Friesen, Wendell Glenn Nutt, American Telephone And Telegraph Company filed Critical Luc Walter Adriaenssens
Publication of CA2073906A1 publication Critical patent/CA2073906A1/en
Application granted granted Critical
Publication of CA2073906C publication Critical patent/CA2073906C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Abstract

A fire-resistant cable which is suitable for the transmission of high frequency signals in a local area network includes a core which comprises a plurality of twisted pairs of insulated conductors and a jacket. Each insulated conductor of each pair includes an elongated metallic member and an insulation system. The insulation system which is characterized by a suitably low dissipation factor includes dual layers, an outer one of which includes a flame-retardant plastic material. Also, the insulation system is characterized by a suitably low dielectric constant and by compatibility with a relatively short pair twist scheme. In one embodiment, the insulation system includes an inner layer of a polyolefin plastic material and an outer layer of a flame-retardant polyolefin plastic material. The jacket comprises a plastic material characterized by a suitably low dissipation factor and dielectric constant and in a preferred embodiment comprises a flame-retardant polyolefin plastic material. Preferably, the twist length of each pair does not exceed the product of about forty and the outer diameter of an insulated conductor of each pair.
CA002073906A 1991-07-31 1992-07-15 Fire-resistant cable for transmitting high frequency signals Expired - Lifetime CA2073906C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US739,122 1991-07-31
US07/739,122 US5162609A (en) 1991-07-31 1991-07-31 Fire-resistant cable for transmitting high frequency signals

Publications (2)

Publication Number Publication Date
CA2073906A1 true CA2073906A1 (en) 1993-02-01
CA2073906C CA2073906C (en) 1997-04-01

Family

ID=24970920

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002073906A Expired - Lifetime CA2073906C (en) 1991-07-31 1992-07-15 Fire-resistant cable for transmitting high frequency signals

Country Status (11)

Country Link
US (1) US5162609A (en)
EP (1) EP0526109A3 (en)
JP (1) JPH07134917A (en)
KR (1) KR930003178A (en)
CN (1) CN1070282A (en)
AU (1) AU653241B2 (en)
CA (1) CA2073906C (en)
MX (1) MX9204403A (en)
NO (1) NO923001L (en)
NZ (1) NZ243739A (en)
TW (1) TW213513B (en)

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US5834697A (en) * 1996-08-01 1998-11-10 Cable Design Technologies, Inc. Signal phase delay controlled data cables having dissimilar insulation materials
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ATE274746T1 (en) * 1999-04-03 2004-09-15 Pirelli & C Spa LOW SMOKE SELF-EXTINGUISHING ELECTRICAL CABLE AND FLAME RESISTANT COMPOSITION
US6495760B1 (en) * 1999-04-03 2002-12-17 Pirelli Cevi E Sistemi S.P.A, Self-extinguishing cable with low-level production of fumes, and flame-retardant composition used therein
JP2000294046A (en) * 1999-04-08 2000-10-20 Hitachi Cable Ltd Twist flat cable
GB9930509D0 (en) * 1999-12-24 2000-02-16 Plastic Insulated Cables Ltd Communications cable
BR0101479A (en) * 2000-04-26 2001-11-20 Avaya Technology Corp Electrical cable device with reduced attenuation and manufacturing method
US6378283B1 (en) 2000-05-25 2002-04-30 Helix/Hitemp Cables, Inc. Multiple conductor electrical cable with minimized crosstalk
US6787694B1 (en) * 2000-06-01 2004-09-07 Cable Design Technologies, Inc. Twisted pair cable with dual layer insulation having improved transmission characteristics
US7002928B1 (en) 2000-06-21 2006-02-21 Sony Corporation IEEE 1394-based protocol repeater
US7542474B2 (en) * 2001-02-26 2009-06-02 Sony Corporation Method of and apparatus for providing isochronous services over switched ethernet including a home network wall plate having a combined IEEE 1394 and ethernet modified hub
ES2278709T3 (en) * 2001-10-22 2007-08-16 Nexans CABLE WITH AN EXTRUDED EXTERNAL COVER AND METHOD OF MANUFACTURE OF THE CABLE.
US20040074668A1 (en) * 2002-10-16 2004-04-22 Steve Somers Cable for minimizing skew delay and crosstalk
US7019218B2 (en) * 2002-10-16 2006-03-28 Rgb Systems, Inc. UTP cable apparatus with nonconducting core, and method of making same
US7078626B2 (en) * 2004-03-12 2006-07-18 Rgb Systems, Inc. Cable apparatus for minimizing skew delay of analog signals and cross-talk from digital signals and method of making same
US7015398B2 (en) * 2003-03-10 2006-03-21 Gavriel Vexler Communications cable
CN103124189A (en) 2003-07-11 2013-05-29 泛达公司 Alien crosstalk suppression with enhanced patch cord
US7214884B2 (en) 2003-10-31 2007-05-08 Adc Incorporated Cable with offset filler
WO2005119704A1 (en) * 2004-05-05 2005-12-15 Union Carbide Chemicals & Plastics Technology Corporation Flame retardant plenum cable
US7271721B2 (en) * 2004-05-28 2007-09-18 Lockheed Martin Corporation Protected distribution system
US20070102188A1 (en) * 2005-11-01 2007-05-10 Cable Components Group, Llc High performance support-separators for communications cable supporting low voltage and wireless fidelity applications and providing conductive shielding for alien crosstalk
US7157644B2 (en) 2004-12-16 2007-01-02 General Cable Technology Corporation Reduced alien crosstalk electrical cable with filler element
US7238885B2 (en) 2004-12-16 2007-07-03 Panduit Corp. Reduced alien crosstalk electrical cable with filler element
US7317163B2 (en) 2004-12-16 2008-01-08 General Cable Technology Corp. Reduced alien crosstalk electrical cable with filler element
US7064277B1 (en) 2004-12-16 2006-06-20 General Cable Technology Corporation Reduced alien crosstalk electrical cable
EP1859456B1 (en) * 2005-03-03 2015-04-29 Union Carbide Chemicals & Plastics Technology LLC Plenum cable-flame retardant layer/component with excellent aging properties
US7271344B1 (en) 2006-03-09 2007-09-18 Adc Telecommunications, Inc. Multi-pair cable with channeled jackets
US7696437B2 (en) * 2006-09-21 2010-04-13 Belden Technologies, Inc. Telecommunications cable
KR100825408B1 (en) * 2007-04-13 2008-04-29 엘에스전선 주식회사 Communication cable of high capacity
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US8367933B1 (en) 2009-06-19 2013-02-05 Superior Essex Communications Lp Data cables with improved pair property balance
EP2551858B1 (en) * 2010-03-25 2018-08-15 Furukawa Electric Co., Ltd. Foamed electrical wire and production method for same
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MY163248A (en) * 2012-03-07 2017-08-30 Furukawa Electric Co Ltd Insulated wire having a layer containing bubbles, electrical equipment, and method of producing insulated wire having a layer containing bubbles
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CN105405529B (en) * 2015-07-30 2019-04-05 凡甲电子(苏州)有限公司 Data transmission cable
CN112309617B (en) * 2019-07-31 2023-03-31 台湾立讯精密有限公司 Flexible flat cable, manufacturing method thereof and signal transmission device

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Also Published As

Publication number Publication date
MX9204403A (en) 1993-05-01
NO923001L (en) 1993-02-01
CA2073906C (en) 1997-04-01
EP0526109A2 (en) 1993-02-03
JPH07134917A (en) 1995-05-23
TW213513B (en) 1993-09-21
NO923001D0 (en) 1992-07-30
US5162609A (en) 1992-11-10
EP0526109A3 (en) 1993-08-25
AU2044592A (en) 1993-02-25
AU653241B2 (en) 1994-09-22
NZ243739A (en) 1995-08-28
CN1070282A (en) 1993-03-24
KR930003178A (en) 1993-02-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202