EP0809261B1 - Câble électrique résistant au feu ou conducteur électrique résistant au feu et procédé de fabrication - Google Patents

Câble électrique résistant au feu ou conducteur électrique résistant au feu et procédé de fabrication Download PDF

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Publication number
EP0809261B1
EP0809261B1 EP97401017A EP97401017A EP0809261B1 EP 0809261 B1 EP0809261 B1 EP 0809261B1 EP 97401017 A EP97401017 A EP 97401017A EP 97401017 A EP97401017 A EP 97401017A EP 0809261 B1 EP0809261 B1 EP 0809261B1
Authority
EP
European Patent Office
Prior art keywords
electrical
retardant material
flame
fire
layer
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.)
Expired - Lifetime
Application number
EP97401017A
Other languages
German (de)
English (en)
Other versions
EP0809261A3 (fr
EP0809261A2 (fr
Inventor
Hans-Joachim Hübner
Gert Warden
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.)
Nexans SA
Original Assignee
Nexans SA
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Filing date
Publication date
Application filed by Nexans SA filed Critical Nexans SA
Publication of EP0809261A2 publication Critical patent/EP0809261A2/fr
Publication of EP0809261A3 publication Critical patent/EP0809261A3/fr
Application granted granted Critical
Publication of EP0809261B1 publication Critical patent/EP0809261B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0033—Apparatus or processes specially adapted for manufacturing conductors or cables by electrostatic coating
    • 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 invention relates to a fire-safe electrical Cable or a fire-proof electrical line with at least one an electrical conductor and one wire with electrical insulation, at least a layer of flame retardant material and one Outer jacket, or a method for producing a such fire-proof electrical cable or one such fire-proof electrical wire.
  • DE 39 19 502 A1 relates to a method for Manufacture of a fire-resistant electrical cable, in which the electrical conductor with a mica-coated film or a corresponding tape made of a polymer material in at least one layer is wrapped. Then the wrapped conductor subjected to a temperature treatment and the polymer material melted and if necessary networked. In this way there is an electrical Insulation that mica in parallel to the conductor surface aligned form contains.
  • DE 30 07 341 A1 describes a method for the production known a fire-proof insulation, in which the continuous conductor directly with a powder Mixture of a briefly non-melting component like a low-melting glass and mineral Materials such as mica or glass-ceramic mixtures coated and then a temperature treatment for the purpose of melting the binder and the mechanical connection of the powdered particles Mixture is subjected before the electrical Plastic or rubber insulation is applied.
  • a briefly non-melting component like a low-melting glass and mineral Materials such as mica or glass-ceramic mixtures coated
  • the advantages that can be achieved by the invention exist especially in that the flocking of an electrical Conductor, one with electrical insulation Core or one having multiple cores Stranded bandage with the flame retardant material high Manufacturing speeds and the manufacture of the flame retardant layer allows in one operation. So the application and drying of the Adhesive in line with extruding the electrical insulation and / or the outer jacket respectively.
  • the cable according to the invention or the Line according to the invention has good fire Emergency running properties due to the electrical insulation over a period of half an hour and more preserved.
  • surfaces can also with the smallest outside diameter reliably with a Layer of flame retardant material.
  • the flame retardant material as evenly as possible the surface provided with the adhesive it is advantageous if the flame retardant Material under the influence of an electrostatic field is applied.
  • FIG. 2 shows a second and FIG. 3 a third embodiment of an inventive fireproof electrical line
  • Fig. 4 the Production of a fire-safe according to the invention electrical cable or such a line.
  • the fire safe example shown in FIG. 1 electrical line 1 has an electrical conductor 3 on which immediately a layer 5 flame retardant Material 7 by flocking the with an adhesive provided circumference of the electrical conductor 3 with the powdered flame retardant material 7, for example with mica. Above are one electrical insulation 9 and an outer jacket 11 arranged.
  • electrical line 1 encloses the electrical Insulation 9 the electrical conductor 3 directly.
  • a layer 5 flame retardant material 7 applied on that of the electrical conductor 3 and the electrical Insulation 9 existing core 13 is a layer 5 flame retardant material 7 applied.
  • This layer 5 is by flocking the with an adhesive provided scope of insulation 9 with a powdered flame retardant material 7 such.
  • Above layer 5 is a Outer jacket 11 arranged.
  • electrical line 1 has three together to one Inlet 12 stranded veins 13. Each of the wires has 13 an electrical conductor 3 and an overlying one electrical insulation 9. Between electrical conductor 3 and electrical insulation 9 can, as in FIG. 1 is shown, a layer of flame retardant material be provided.
  • the formed from the three wires 13 Soul 14 is of an inner shell filling the gusset 15 enclosed. There is a layer over the inner jacket 15 5 flame retardant material 7 formed by the flame retardant material 7 on the with an adhesive provided circumference of the inner jacket 15 by flocking is applied.
  • Line 1 is connected to the outside completed an outer jacket 11.
  • FIG. 4 shows an example of a device for Manufacture of fire safe electrical cables or Cables. 4 is an example of this Applying a layer 5 of flame-retardant material 7 represented on an electrical conductor 3. This But the procedure is the same for that Application of such a flame-retardant layer on one Vein, on a stranding or another any strand applicable.
  • To make one electrical conductor 3 enclosing layer 5 flame retardant material 7 is first in the run through the device, for example by means of a Ring nozzle 21 a thin layer of an adhesive 23rd applied to the electrical conductor 3 on all sides.
  • Adhesive 23 is, for. B.
  • a hot melt adhesive that in a container 25 by means of a heating device 27 kept in the molten state and by means of a suitable conveyor of the ring nozzle 21 supplied becomes.
  • a suitable conveyor of the ring nozzle 21 Following the ring nozzle 21 passes through with coated the molten adhesive 23 electrical conductor 3 a flocking chamber 29.
  • the Flocking chamber 29 becomes the powdery flame retardant Material 7 set in turbulence. If necessary under Influence of an electrostatic field becomes with the molten adhesive 23 provided electrical Conductor 3 as it passes through the flocking chamber 29 evenly flocked with the flame retardant material 7.
  • the flocking is not in one such flocking chamber 29, but with the help of a special flocking nozzle under the influence of a electrostatic field.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Claims (11)

  1. Câble électrique ou circuit électrique résistant au feu, composé au minimum d'un fil électrique doté d'un conducteur et d'une isolation électriques, d'une couche au moins d'un matériau de limitation de combustion et d'un revêtement extérieur, remarquable du fait que le matériau de limitation de combustion (7) est appliqué par flocage sur une surface enduite de colle (23).
  2. Câble ou circuit répondant à la spécification 1, remarquable du fait que le matériau de limitation de combustion (7) est du mica.
  3. Câble ou circuit répondant à la spécification 1 ou 2, remarquable du fait que la couche (5) de matériau de limitation de combustion (7) est appliquée directement sur le conducteur électrique (3).
  4. Câble ou circuit répondant à l'une des spécifications 1 à 3, remarquable du fait que la couche (5) de matériau de limitation de combustion (7) est appliquée sur le fil (13).
  5. Câble ou circuit répondant à l'une des spécifications 1 à 3, à âme composée d'un ensemble de fils, remarquable du fait que la couche (5) de matériau de limitation de combustion (7) est appliquée autour de l'âme (14) ainsi formée.
  6. Procédé de fabrication d'un câble ou d'un circuit électrique résistant au feu contenant au minimum un fil électrique, composé lui-même d'un conducteur et d'une isolation, et recouvert d'une couche de matériau de limitation de combustion au moins et d'un revêtement extérieur, remarquable du fait que l'une des surfaces à recouvrir d'une couche (5) de matériau de limitation de combustion (7) est enduite de colle (23). Il se distingue également par le fait que l'enduction de colle et le flocage du matériau de limitation de combustion (7) sont réalisés au cours d'un seul et même cycle de fabrication.
  7. Procédé répondant à la spécification 6, remarquable du fait que le matériau de limitation de combustion (7) est appliqué sous l'action d'un champ électrostatique.
  8. Procédé répondant à la spécification 6 ou 7, remarquable du fait que le matériau de limitation de combustion (7) utilisé est le mica.
  9. Procédé répondant à l'une des spécifications 6 à 8, remarquable du fait que la couche (5) de matériau de limitation de combustion (7) est appliquée directement sur le conducteur électrique (3).
  10. Procédé répondant à l'une des spécifications 6 à 9, remarquable du fait que la couche (5) de matériau de limitation de combustion (7) est appliquée sur le fil (13).
  11. Procédé répondant à l'une des spécifications 6 à 9, pour un câble ou un circuit possédant une âme formée de plusieurs fils liés entre eux, remarquable du fait que la couche (5) de matériau de limitation de combustion (7) est appliquée sur l'âme (14).
EP97401017A 1996-05-24 1997-05-02 Câble électrique résistant au feu ou conducteur électrique résistant au feu et procédé de fabrication Expired - Lifetime EP0809261B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19620963 1996-05-24
DE19620963A DE19620963A1 (de) 1996-05-24 1996-05-24 Brandsicheres elektrisches Kabel oder brandsichere elektrische Leitung und Verfahren zur Herstellung

Publications (3)

Publication Number Publication Date
EP0809261A2 EP0809261A2 (fr) 1997-11-26
EP0809261A3 EP0809261A3 (fr) 1998-06-03
EP0809261B1 true EP0809261B1 (fr) 2002-04-10

Family

ID=7795225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97401017A Expired - Lifetime EP0809261B1 (fr) 1996-05-24 1997-05-02 Câble électrique résistant au feu ou conducteur électrique résistant au feu et procédé de fabrication

Country Status (2)

Country Link
EP (1) EP0809261B1 (fr)
DE (2) DE19620963A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10236288A1 (de) * 2002-08-08 2004-02-26 Nexans Elektrisches Kabel
EP3142125B1 (fr) * 2015-09-09 2021-05-05 Lapp Engineering AG Cable
CN106024168B (zh) * 2016-07-27 2018-03-16 浙江秦山电缆有限公司 一种高绝缘电阻的阻燃四芯电缆线及其制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976325C (de) * 1951-11-13 1963-06-27 Licentia Gmbh Verfahren zur Herstellung von Schichtstoffen aus Glimmerblaettchen
DE1891839U (de) * 1964-03-06 1964-04-30 Continental Elektro Ind Ag Elektrische gummi- oder kunststoffisolierte einfach- oder mehrfachleitung.
US4131690A (en) * 1975-05-05 1978-12-26 Northern Electric Company Limited Method of powder coating an insulated electrical conductor
NO141732C (no) * 1977-01-12 1984-09-04 Norsk Kabelfabrik As Flammebestandig kabelkonstruksjon
FR2411475A1 (fr) * 1977-12-06 1979-07-06 Thomson Brandt Cable electrique resistant a la propagation de l'incendie, et procede de fabrication d'un tel cable
DE3007341A1 (de) * 1980-02-27 1981-09-10 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Brandsicheres kunststoffisoliertes elektrisches kabel oder leitung
DE8022502U1 (de) * 1980-08-23 1980-11-20 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Graphitiervorrichtung für die Leitschichten elektrischer Kabel
DE3919502A1 (de) * 1989-06-15 1990-12-20 Kabelmetal Electro Gmbh Ein- oder mehradriges elektrisches kabel
HU201626B (en) * 1989-09-05 1990-11-28 Magyar Kabel Muevek Device for making surface layer on work pieces moving longitudinally particularly by use of dusty integumentary material in cable industry
DE4437596A1 (de) * 1994-10-20 1996-04-25 Daetwyler Ag Flammwidrige Zusammensetzung zur Herstellung von elektrischen Kabeln mit Isolations- und/oder Funktionserhalt

Also Published As

Publication number Publication date
EP0809261A3 (fr) 1998-06-03
EP0809261A2 (fr) 1997-11-26
DE19620963A1 (de) 1997-11-27
DE59706935D1 (de) 2002-05-16

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