FR2335021A1 - Multi-pair telephone cable with polyethylene sheaths - has layers of insulating materials and metal wire screen for thermal and mechanical protection - Google Patents

Multi-pair telephone cable with polyethylene sheaths - has layers of insulating materials and metal wire screen for thermal and mechanical protection

Info

Publication number
FR2335021A1
FR2335021A1 FR7537608A FR7537608A FR2335021A1 FR 2335021 A1 FR2335021 A1 FR 2335021A1 FR 7537608 A FR7537608 A FR 7537608A FR 7537608 A FR7537608 A FR 7537608A FR 2335021 A1 FR2335021 A1 FR 2335021A1
Authority
FR
France
Prior art keywords
layers
thermal
telephone cable
metal wire
insulating materials
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
FR7537608A
Other languages
French (fr)
Other versions
FR2335021B1 (en
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.)
Elfit SA
Original Assignee
Elfit SA
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 Elfit SA filed Critical Elfit SA
Priority to FR7537608A priority Critical patent/FR2335021A1/en
Publication of FR2335021A1 publication Critical patent/FR2335021A1/en
Application granted granted Critical
Publication of FR2335021B1 publication Critical patent/FR2335021B1/fr
Granted 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
    • 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
    • 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

Landscapes

  • Insulated Conductors (AREA)

Abstract

A multi-pair telephone cable has high temp. properties. It has insulating material which is non-flammable, does not give off toxic gases or dense smoke at high ambient temps. The cable has multi-pair conductors, with low pressure polyethylene insulating material. The insulated conductors are protected by three layers of tape. There are also an inside sheath of non-inflammable silicone elastomer, a screen of steel mesh and an external sheath of non-flammable silicone elastomer. The internal sheath, the screen and the external sheath provide mechanical and thermal protection.
FR7537608A 1975-12-09 1975-12-09 Multi-pair telephone cable with polyethylene sheaths - has layers of insulating materials and metal wire screen for thermal and mechanical protection Granted FR2335021A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7537608A FR2335021A1 (en) 1975-12-09 1975-12-09 Multi-pair telephone cable with polyethylene sheaths - has layers of insulating materials and metal wire screen for thermal and mechanical protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7537608A FR2335021A1 (en) 1975-12-09 1975-12-09 Multi-pair telephone cable with polyethylene sheaths - has layers of insulating materials and metal wire screen for thermal and mechanical protection

Publications (2)

Publication Number Publication Date
FR2335021A1 true FR2335021A1 (en) 1977-07-08
FR2335021B1 FR2335021B1 (en) 1978-05-19

Family

ID=9163487

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7537608A Granted FR2335021A1 (en) 1975-12-09 1975-12-09 Multi-pair telephone cable with polyethylene sheaths - has layers of insulating materials and metal wire screen for thermal and mechanical protection

Country Status (1)

Country Link
FR (1) FR2335021A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401845A (en) * 1981-08-26 1983-08-30 Pennwalt Corporation Low smoke and flame spread cable construction

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576940A (en) * 1968-12-03 1971-05-04 Cerro Corp Flame-retardant wire and cable

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576940A (en) * 1968-12-03 1971-05-04 Cerro Corp Flame-retardant wire and cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401845A (en) * 1981-08-26 1983-08-30 Pennwalt Corporation Low smoke and flame spread cable construction

Also Published As

Publication number Publication date
FR2335021B1 (en) 1978-05-19

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse