CA2194993A1 - Fire-resistant wires - Google Patents

Fire-resistant wires

Info

Publication number
CA2194993A1
CA2194993A1 CA002194993A CA2194993A CA2194993A1 CA 2194993 A1 CA2194993 A1 CA 2194993A1 CA 002194993 A CA002194993 A CA 002194993A CA 2194993 A CA2194993 A CA 2194993A CA 2194993 A1 CA2194993 A1 CA 2194993A1
Authority
CA
Canada
Prior art keywords
fire
cloth
smoother
mica tape
mica
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
CA002194993A
Other languages
French (fr)
Other versions
CA2194993C (en
Inventor
James David Maxfield
Brian Cooper
Edward Williams
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.)
Raychem Ltd
Original Assignee
James David Maxfield
Brian Cooper
Edward Williams
Raychem Limited
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
Priority claimed from GB9414245A external-priority patent/GB9414245D0/en
Priority claimed from GBGB9500362.0A external-priority patent/GB9500362D0/en
Application filed by James David Maxfield, Brian Cooper, Edward Williams, Raychem Limited filed Critical James David Maxfield
Publication of CA2194993A1 publication Critical patent/CA2194993A1/en
Application granted granted Critical
Publication of CA2194993C publication Critical patent/CA2194993C/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
    • 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

Abstract

Mica-wrapped wires for fire-resistant cables have an unusually low degree of overlap in the mica tape wraps, which unexpectably produces a smoother external profile while retaining an acceptable degree of fire protection. Two layers of glass-cloth-backed mica tape, preferably with a polymer film overlying the cloth, are preferably applied with their respective (low) overlaps staggered. This smoother wrapping is especially effective when thin (less than 0.8 mm) polymer coatings are to be extruded over the wrapped wire.
CA002194993A 1994-07-14 1995-07-12 Fire-resistant wires Expired - Lifetime CA2194993C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9414245.2 1994-07-14
GB9414245A GB9414245D0 (en) 1994-07-14 1994-07-14 Fire resistant wires
GBGB9500362.0A GB9500362D0 (en) 1995-01-09 1995-01-09 Fire-resistant wire
GB9500362.0 1995-01-09
PCT/GB1995/001638 WO1996002920A1 (en) 1994-07-14 1995-07-12 Fire-resistant wires

Publications (2)

Publication Number Publication Date
CA2194993A1 true CA2194993A1 (en) 1996-02-01
CA2194993C CA2194993C (en) 2003-10-28

Family

ID=26305270

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002194993A Expired - Lifetime CA2194993C (en) 1994-07-14 1995-07-12 Fire-resistant wires

Country Status (11)

Country Link
EP (1) EP0770259B1 (en)
JP (1) JP4015694B2 (en)
KR (1) KR100363600B1 (en)
CN (1) CN1080443C (en)
AU (1) AU696852B2 (en)
CA (1) CA2194993C (en)
DE (1) DE69512242T2 (en)
IL (1) IL114579A (en)
MY (1) MY113998A (en)
TW (1) TW374182B (en)
WO (1) WO1996002920A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1044647C (en) * 1996-02-14 1999-08-11 陈云生 Refractory synthetic mica tape and its production process
DE10203900A1 (en) 2002-01-31 2003-08-14 Nexans Electrical line
PL1619694T3 (en) * 2004-07-23 2013-02-28 Nexans Insulated electrical conductor with preserved functionality in case of fire
EP2031603B1 (en) * 2007-08-31 2011-01-19 Essex Europe SAS Electrically conductive wire and method for its manufacture
DE102008000073A1 (en) * 2008-01-17 2009-07-23 Alstom Technology Ltd. Ladder for a rotating electrical machine
US10453588B2 (en) 2015-02-10 2019-10-22 Prysmian S.P.A. Fire resistant cable
DE102015210389A1 (en) * 2015-06-05 2016-12-08 Leoni Kabel Holding Gmbh data cable
WO2017130016A1 (en) 2016-01-26 2017-08-03 Prysmian S.P.A. Fire resistive cable system
EP3301687B1 (en) 2016-09-29 2019-11-06 Lapp Engineering & Co. A fire-resistant cable
US10998110B2 (en) * 2019-01-18 2021-05-04 Priority Wire & Cable, Inc. Flame resistant covered conductor cable
EP3886121A1 (en) 2020-03-25 2021-09-29 Lapp Engineering & Co. Fire-resistant cable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631699C2 (en) * 1986-09-18 1993-11-11 Kabelmetal Electro Gmbh Flame resistant electrical wire

Also Published As

Publication number Publication date
AU2895195A (en) 1996-02-16
CN1080443C (en) 2002-03-06
IL114579A0 (en) 1995-11-27
AU696852B2 (en) 1998-09-17
JP4015694B2 (en) 2007-11-28
DE69512242D1 (en) 1999-10-21
EP0770259A1 (en) 1997-05-02
JPH10503050A (en) 1998-03-17
TW374182B (en) 1999-11-11
KR100363600B1 (en) 2003-02-19
KR970705149A (en) 1997-09-06
WO1996002920A1 (en) 1996-02-01
CN1152969A (en) 1997-06-25
MY113998A (en) 2002-07-31
EP0770259B1 (en) 1999-09-15
IL114579A (en) 1998-08-16
CA2194993C (en) 2003-10-28
DE69512242T2 (en) 2000-07-20

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20150713