EP4278369A1 - Câble et cordons de raccordement torsadés en cuivre résistants au feu - Google Patents

Câble et cordons de raccordement torsadés en cuivre résistants au feu

Info

Publication number
EP4278369A1
EP4278369A1 EP22713505.0A EP22713505A EP4278369A1 EP 4278369 A1 EP4278369 A1 EP 4278369A1 EP 22713505 A EP22713505 A EP 22713505A EP 4278369 A1 EP4278369 A1 EP 4278369A1
Authority
EP
European Patent Office
Prior art keywords
fire
patch cable
jacket
cable
electrical conductors
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.)
Pending
Application number
EP22713505.0A
Other languages
German (de)
English (en)
Inventor
designation of the inventor has not yet been filed The
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.)
Leviton Manufacturing Co Inc
Original Assignee
Leviton Manufacturing Co Inc
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 Leviton Manufacturing Co Inc filed Critical Leviton Manufacturing Co Inc
Publication of EP4278369A1 publication Critical patent/EP4278369A1/fr
Pending 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
    • H01B11/02—Cables with twisted pairs or quads
    • 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
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H01B7/361—Insulated conductors or cables characterised by their form with distinguishing or length marks being the colour of the insulation or conductor
    • 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
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H01B7/365—Insulated conductors or cables characterised by their form with distinguishing or length marks being indicia imposed on the insulation or conductor

Definitions

  • the disclosed subject matter relates generally to data cabling, and in particular to patch cables and related cords.
  • the Construction Products Regulation is a set of rules for marketing construction materials sold in the European Union. Cables are specifically marketed for their reaction to fire properties.
  • the CPR introduced a set of classifications, referred to as Euroclasses, which range from F to A in general and from Eca to B2ca for telecommunication cables, that rate the fire safety performance of data and/or telecommunications cables. Similar performance rating schemes exist in other regions of the world, e.g., UL listing in the United States for Riser and Plenum, etc.
  • patch cables and cords have been considered non-permanent cable installations and are normally installed within a single room. As a result, these cables have traditionally been excluded from CPR and/or other regulations.
  • patch cords, and subsequently patching cables are increasingly being deployed in more permanent installations in the building and could be considered a fire risk. This change in installation practice to a more permanent use of patching cables means that patching cables could be required to meet the fire safety requirements of CPR.
  • a patch cable as described herein can include electrical conductors including respective conductor strands, where the electrical conductors are arranged in twisted pairs.
  • the patch cable can further include a jacket encompassing the electrical conductors, where the jacket is composed of a fire-rated material.
  • the patch cable may further comprise connector plugs coupled to the electrical conductors at respective ends of the patch cable, wherein the connector plugs are coupled to the electrical conductors.
  • the jacket may comprise an indication of a flame propagation rating of the fire-rated material.
  • the flame propagation rating of the fire-rated material may be within a defined range, of different defined ranges, and wherein the indication may comprise a coloring, of a color associated with the defined range, applied to the jacket.
  • Respective ones of the different defined ranges may correspond to respective European Union Construction Products Regulation classifications.
  • the indication may comprise a text string applied to the jacket.
  • the flame propagation rating may be a first rating, and wherein the text string may further indicate a second rating of the fire-rated material, the second rating being selected from a group comprising a smoke rating, a flaming droplets rating, and an acidity rating.
  • the fire-rated material is preferably a low-smoke zero-halogen material.
  • the respective conductor strands preferably comprise respective groups of seven helically stranded conductor strands.
  • the electrical conductors may comprise eight electrical conductors arranged in four twisted pairs.
  • a patch cable as described herein can include electrical conductors, each of the electrical conductors including a plurality of conductor strands, where the electrical conductors are arranged in twisted pairs.
  • the patch cable can also include conductor insulators encompassing respective ones of the electrical conductors, where the conductor insulators are composed of a fire-rated material.
  • the patch cable can additionally include a jacket encompassing the electrical conductors and the conductor insulators.
  • the jacket comprises an indication of a flame propagation rating of the fire-rated material.
  • the flame propagation rating of the fire-rated material is preferably within a range, of a plurality of ranges, and wherein the indication may comprise a coloring, of a color associated with the range, applied to the jacket.
  • respective ones of the plurality of ranges correspond to respective European Union Construction Products Regulation classifications.
  • the indication comprises a text string applied to the jacket.
  • the fire-rated material is a low-smoke zero-halogen material.
  • the fire-rated material is a first fire-rated material
  • the jacket is composed of a material selected from a group comprising the first fire-rated material and a second fire-rated material.
  • the electrical conductors comprise eight electrical conductors arranged in four twisted pairs.
  • a method as described herein can include constructing a patch cable, which in turn can include stranding respective groups of conductive wires together, resulting in stranded conductors; insulating the stranded conductors with a first material; and housing the stranded conductors within a cable jacket, the cable jacket being composed of a second material that is a fire-rated material.
  • the first material is a first fire-rated material
  • the fire-rated material of the second material is a second fire-rated material different than the first fire-rated material
  • FIG. 1 is a cross-sectional view of an example CPR rated stranded copper patch cable in accordance with various aspects described herein.
  • FIG. 2 is a diagram depicting application of a connector plug to a CPR rated stranded copper patch cable, e.g., the patch cable of FIG. 1, in accordance with various aspects described herein.
  • FIG. 3 is a diagram depicting example color coding that can be used to indicate a fire protection level of a patch cable in accordance with various aspects described herein.
  • FIG. 4 is a diagram depicting an example text indication of a fire protection level that can be applied to a patch cable in accordance with various aspects described herein.
  • FIG. 5 is a side view of an example stranded conductor that can be used in a CPR rated stranded copper patch cable in accordance with various aspects described herein.
  • FIGS. 6-7 are cross-sectional views of respective example CPR rated stranded copper patch cable in accordance with various aspects described herein.
  • FIGS. 8-10 are flow diagrams of respective methods that facilitate construction of a CPR rated stranded copper patch cable in accordance with various aspects described herein.
  • Various aspects described herein relate to fire performance rated (e.g., CPR rated, UL listed, etc.) stranded patch cables, which can be used in the construction of copper patch cords and/or other data cabling that can be used to connect network devices in applications in which fire performance rated cables are desired, e.g., due to regulations or other factors.
  • fire performance rated e.g., CPR rated, UL listed, etc.
  • patch cables have been used to facilitate nonpermanent connections between devices, e.g., connections between a computer and a network port, between devices in a telecommunications room, and/or other similar uses where devices are frequently disconnected and reconnected.
  • devices e.g., connections between a computer and a network port
  • devices in a telecommunications room e.g., connections between a computer and a network port
  • devices in a telecommunications room e.g., connections between a computer and a network port, between devices in a telecommunications room, and/or other similar uses where devices are frequently disconnected and reconnected.
  • LoT Internet of Things
  • Wi-Fi Wireless Fidelity
  • patch cables associated with these and/or other devices are increasingly being installed in permanent and/or semipermanent locations, such as above drop ceilings or behind walls, where fire performance regulations apply.
  • fire performance rated patch cords for applications are constructed from twisted wire pairs comprised of solid conductors for local area network (LAN) cable, where plugs are terminated to the twisted wire pairs comprised of solid conductors on the ends of a length of cable to form a patch cord.
  • LAN local area network
  • These patch cords are often built by contractors in the field and, as a result, are generally less reliable than pre-fabricated cable assemblies, add time to project installation, and increase the cost to the end consumer, among other disadvantages.
  • fire performance rated stranded patch cables as described herein mitigate said disadvantages as well as providing additional advantages. These advantages include, but are not limited to, increased cable flexibility, extended flex life compared to solid conductors, smaller cable outside diameter (OD), the ability to use standard plugs that more easily fit into the space utilized for patch connections, and/or other advantages.
  • FIG. 1 a cross-sectional view of an example CPR rated stranded copper patch cable 100, also referred to herein as simply a “patch cable” for brevity, is presented.
  • the patch cable 100 shown in FIG. 1 includes electrical conductors 110, here eight conductors 110, only one of which is labeled for clarity of illustration.
  • the conductors 110 of the patch cable can be arranged in twisted pairs 130, here four twisted pairs 130 corresponding to the eight conductors 110.
  • the conductors 110 comprising each twisted pair 130 can be twisted at a rate, i.e., a rate associated with a given length of cable, that is chosen to facilitate optimal electrical performance of the conductors 110 and the patch cable 100 as a whole. Additionally, the lay lengths associated with each of the twisted pairs 130 can differ from each of the other twisted pairs 130 in order to mitigate the effects of electrical resonance and/or other interference caused by adjacent twisted pairs 130. Other techniques for implementing the twisted pairs 130 are also possible.
  • the conductors 110 of the patch cable 100 shown in FIG. 1 are stranded conductors.
  • the conductors 110 are instead comprised of a plurality of individual conductive strands 120. Similar to the conductors 110, only one conductive strand 120 is labeled in FIG. 1 for clarity of illustration.
  • each of the conductors 110 can include seven helically stranded conductive strands 120.
  • Other stranding techniques could also be employed via the conductive strands 120.
  • Example stranding techniques associated with the conductive strands 120 are described in further detail below with respect to FIG. 5.
  • the conductive strands 120 can be wires that are composed of copper and/or other suitable conductive materials.
  • stranded conductors such as those shown in FIG. 1
  • wire used for solid conductors can have a gauge of approximately 23-24 AWG (American Wire Gauge)
  • stranded conductors such as the conductors 110
  • wire strands having a gauge of approximately 32 AWG.
  • Such a stranded cable can be referred to as 7X32 or 7/32 cable, indicating that seven strands of 32 AWG cable are used to make up a single conductor 110.
  • Other wire gauges and/or configurations could also be used.
  • the conductors 110 of the patch cable can be wrapped and/or otherwise placed within insulative material, e.g., to prevent direct contact between different conductors 110 and/or conductors 110 and other elements of the patch cable 100, to reduce electrical interference or crosstalk associated with the respective conductors 110, or for other purposes. Examples of insulators that can be applied to the conductors 110 are described in further detail below with respect to FIGS. 6-7.
  • the patch cable 100 it is noted that while the patch cable 100 shown in FIG. 1 includes eight conductors 110, each including seven conductive strands 120, the patch cable 100 could alternatively have any suitable number of conductors 110. Additionally, each of the conductors 110 could include any number of two or more conductive strands 120, which can be arranged, twisted, etc., in any suitable manner.
  • the patch cable 100 can include an outer jacket 140, e.g., a cable jacket, that houses and/or otherwise encompasses all of the conductors 110.
  • the outer jacket 140 can be composed of, and/or otherwise include, a fire-rated material, such as a self-extinguishing material or other flame retardant material.
  • a fire-rated material such as a self-extinguishing material or other flame retardant material.
  • selfextinguishing refers to a material that ceases burning in the absence of an external flame source.
  • fire-rated refers to a material that has been assigned a rating for fire performance, e.g., a CPR rating, a UL listing, etc.
  • self-extinguishing materials that can be used in construction of the outer jacket 140 can include, but are not limited to, polyvinyl chloride (PVC) and/or fluorinated ethylene propylene (FEP) compounds, low-smoke zero-halogen (LSZH) materials such as ethyl ene-propylene rubber (EPR) and/or crosslinked propylene (XLPE), and/or other suitable compounds.
  • PVC polyvinyl chloride
  • FEP fluorinated ethylene propylene
  • LSZH low-smoke zero-halogen
  • EPR ethyl ene-propylene rubber
  • XLPE crosslinked propylene
  • the outer jacket 140 could be constructed from a combination of compounds or materials, including self-extinguishing or non-selfextinguishing compounds, provided the resulting jacket material is selfextinguishing or otherwise flame retardant.
  • the relative amounts and/or proportions of compounds used in construction of the outer jacket 140 can be adjusted to facilitate a desired amount of fire protection.
  • chemicals or additives can be applied to one or more materials used in construction of the outer jacket 140 in order to provide and/or enhance the fire protection properties of the associated material(s).
  • the thickness of the outer jacket 140 can also be adjusted in order to facilitate a desired fire protection rating and/or cable outer diameter (OD).
  • the lay lengths of the respective conductors 110 and/or twisted pairs 130 can be adjusted based on the thickness and/or materials associated with the outer jacket 140, or vice versa.
  • the stranded conductor patch cable 100 is more flexible, more resilient to flexing without fatigue and/or breaking, smaller in bend radius, or the like, and thus easier to route.
  • Other advantages are also possible.
  • the patch cable 100 can be fire performance rated according to a given regulatory scheme, e.g., the EU CPR, etc.
  • the patch cable 100 can be dual or tri-listed to cover additional flame ratings, e.g., in order to facilitate use of the patch cable 100 in multiple global regions.
  • a dual-listed cable could be UL listed (e.g., CM, CMR (Riser), CMP (Plenum), etc.) as well as CPR rated (e.g., Eca, Dea, Cea, etc.).
  • a tri-listed cable could include a CPR rating, a UL listing, and a Low Smoke Zero Halogen (LSZH) certification by a third party.
  • LSZH Low Smoke Zero Halogen
  • FIG. 2 a diagram 200 depicting application of a connector plug 220 to a CPR rated stranded copper patch cable 210 is provided. Repetitive description of like elements employed in other embodiments described herein is omitted for brevity.
  • the patch cable 210 shown in diagram 200 can be constructed in a similar manner to the patch cable 100 shown in FIG. 1. Also, or alternatively, the patch cable 210 could be constructed using other configurations, such as those that will be described in further detail below with respect to FIGS. 6-7 and/or other suitable configurations.
  • a connector plug 220 can be affixed to an end of the patch cable 210, e.g., by coupling the connector plug 220 to the electrical conductors of the patch cable 210.
  • the patch cable 210 can be delivered to a job site pre-terminated to the connector plugs 220. This can significantly reduce the amount of time associated with on-site cable installation as compared to patch cable that is not pre-terminated to the connector plugs 220 which must, instead, be terminated by the installer in the field.
  • factory-terminated cable such as the patch cable 210 that is preterminated with connector plugs 220 in the factory, can be tested prior to delivery to the installer, reducing the likelihood of on-site cable failure.
  • the connector plug 220 can be of a type that facilitates coupling of the patch cable 210 to a registered jack (RJ), such as an RJ45 connector or the like.
  • RJ registered jack
  • Other connector types could also be used.
  • the connector plug 220 can be constructed from a firerated material, which can be the same as and/or different from the material(s) used in the construction of the patch cable 210.
  • the connector plug 220 can be constructed from standard plastics and/or other materials generally used in the art.
  • FIG. 3 a diagram 300 depicting example color coding that can be used to indicate a fire protection level of a patch cable is provided. Repetitive description of like elements employed in other embodiments described herein is omitted for brevity.
  • the color coding depicted by diagram 300 can be utilized as a visual indication of the flame propagation rating of the material(s) used in construction of the patch cable.
  • a visual indication of the flame propagation rating can be provided via a text indication, as will be described in further detail below with respect to FIG. 4.
  • respective colorings 310, 320, 330, 340 can be associated, e.g., on a cable jacket 140 as described above with respect to FIG. 1, with different defined ranges of flame propagation ratings and/or other fire performance ratings.
  • the colorings 310, 320, 330, 340 correspond to CPR classifications (Euroclasses) B2ca, Cea, Dea, and Eca, respectively. Similar color schemes could be applied to other rating systems, such as UL listing.
  • each of the colorings 310, 320, 330, 340 can correspond to a distinct color.
  • coloring 310 corresponding to Euroclass B2ca can be orange
  • coloring 320 corresponding to Euroclass Cea can be green
  • coloring 330 corresponding to Euroclass Dea can be blue
  • coloring 340 corresponding to Euroclass Eca can be violet.
  • Other colors could also be used.
  • the colorings 310, 320, 330, 340 can also increase speed and accuracy of cable installation in respective areas of a job site.
  • the colorings 310, 320, 330, 340 can also improve inventory management throughout the supply chain, e.g., by enabling manufacturers, distributors, integrators, contractors, and end users to efficiently identify, by visual inspection, the fire performance rating of their inventory.
  • a diagram 400 depicting an example text indication of a fire protection level that can be applied to a patch cable is provided. Repetitive description of like elements employed in other embodiments described herein is omitted for brevity.
  • a text string 410 can be printed on and/or otherwise applied to the jacket of a patch cable, such as a cable jacket 140 as described above with respect to FIG. 1.
  • the text string 410 can indicate, among other information, a fire protection level associated with the patch cable.
  • the text string 410 can be used in addition to, or in place of, other text printed on or otherwise associated with the cable jacket, as well as a color code applied to the cable jacket, e.g., as described above with respect to FIG. 3.
  • the text string 410 includes a Euroclass corresponding to the CPR fire performance rating of the patch cable, here classification B2ca. Additionally, the text string 410 includes an indication of the classification criteria used in assigning the fire performance rating.
  • the B2ca classification is based, at least in part, on flame tests performed according to the EN 50399 standard. Other testing standards, such as the International Electrotechnical Commission (EEC) 60332-1-2 standard, could also be used.
  • EEC International Electrotechnical Commission
  • the text string 410 can include indicators of additional ratings of the material(s) used in the patch cable.
  • the text string 410 includes a smoke rating (si a), a flaming droplets rating (dO), and an acidity (acid gas) rating (al).
  • Other ratings could also be included in the text string 410.
  • the text string 410 could include other information, such as a type of the patch cable (e.g., Category/Cat 6A, etc.), a conductor configuration of the patch cable, a country or region of manufacture of the patch cable, and/or other suitable information.
  • patch cables as described above with respect to FIGS. 3-4 can provide proof of conformance to relevant regulations, proof of safety in the case of fire, a reduction of fire spread and/or release of hazardous substances in the case of fire, a clear identification that the patch cable meets the needs of environments where safety is paramount, and assistance to building designers, contractors, and local building authorities to specify that the patch cable(s) used for a given job have the desired characteristics.
  • Other advantages are also possible. Turning next to FIG.
  • the stranded conductor 500 shown in FIG. 5 includes a group of conductor strands 510, e.g., seven conductor strands 510, that are twisted and/or otherwise wrapped around each other.
  • the rate at which the conductor strands 510 are wrapped around each other, i.e., the lay length of the stranded conductor 500, can be chosen to optimize the electrical properties of the stranded conductor 500.
  • the conductor strands 510 can be wires that are composed of copper and/or other conductive materials. As further shown in FIG. 5, a conductor insulator 520 can be placed around the conductor strands 510 to reduce interference between and among each of the conductors comprising the cable. In an implementation in which the stranded conductor 500 is implemented within a patch cable (e.g., patch cable 100), the conductor insulator 520 can be composed of the same material(s) used in construction of the outer cable jacket and/or a different material.
  • FIG. 6 a cross-sectional view of an example CPR rated stranded copper patch cable 600 is provided. Repetitive description of like elements employed in other embodiments described herein is omitted for brevity.
  • the patch cable 600 shown in FIG. 6 includes respective stranded conductors 110, each of which can be made up of groups of conductive strands 120 and arranged in twisted pairs 130 in a similar manner to the patch cable 100 described above with respect to FIG. 1.
  • respective conductor insulators 610 can encompass each of the conductors 110, e.g., by being wound, formed, and/or otherwise applied around each of the conductors 110. Similar to the cable jacket 140 as described above with respect to FIG. 1, the conductor insulators 610 can be composed of, and/or otherwise include, a fire-rated material, e.g., a self-extinguishing or otherwise flame-retardant material.
  • a fire-rated material e.g., a self-extinguishing or otherwise flame-retardant material.
  • the conductor insulators 610 can be composed of self-extinguishing and/or flame-retardant materials that are similar to those described above with respect to the cable jacket 140 as described above, e.g., PVC and/or FEP compounds, LSZH materials such as EPR and/or XLPE, etc. Other materials could also be used.
  • a visual indicator of the flame propagation rating (and/or other suitable fire performance ratings) of the conductor insulators 610 and/or their constituent materials can be placed on the outer jacket 140 of the patch cable 600.
  • These indicators can include color coding as described above with respect to FIG. 3, a text string as described above with respect to FIG. 4, and/or any other suitable indicator(s).
  • this visual indicator could be in addition to another visual indicator, e.g., an indicator of the flame propagation rating of the cable as a whole.
  • the conductor insulators 610 can be composed of the same material(s) as the cable jacket 140, and/or other materials could be used.
  • the conductor insulators 610 and the cable jacket 140 of the patch cable 600 shown in FIG. 6 are composed of common materials, as denoted by the common shading.
  • the cable jacket 140 and the conductor insulators 610 could be composed of different materials.
  • one or both of the cable jacket 140 and conductor insulators 610 can be flame retardant and/or self-extinguishing materials.
  • a flow diagram of a first method 800 that facilitates construction of a CPR rated stranded copper patch cable is presented.
  • respective groups of conductive wires e.g., conductive strands 120
  • stranded conductors e.g., conductors 110
  • the conductive wires used at 802 can be constructed via any suitable wire-making techniques known in the art, e.g., by drawing the wire from a rod and/or other source of the conductive metal until a desired wire gauge is reached.
  • the wires can be stranded at 802 by helically twisting the wires to a desired lay length, e.g., as described above with respect to FIG. 5.
  • the stranded conductors constructed at 802 are insulated (e.g., with conductor insulators 610).
  • Method 800 then concludes at 806, in which the stranded conductors created at 802 and insulated at 804 are housed within a cable jacket (e.g., a cable jacket 140) that is composed of a self-extinguishing and/or other flame retardant material.
  • Method 900 begins via construction of stranded conductors at 802, e.g., as described above with respect to FIG. 8.
  • the stranded conductors created at 802 are insulated with a first self-extinguishing material, e.g., as described above with respect to FIGS. 6-7.
  • the stranded conductors are housed within a cable jacket (e.g., a cable jacket 140) that is composed of a second self-extinguishing material.
  • the second selfextinguishing material used in construction of the cable jacket at 906 can be the same as, or different from, the first self-extinguishing material associated with the conductor insulation performed at 904.
  • Method 1000 begins by housing insulated stranded conductors within a flame retardant cable jacket, e.g., via the actions described above with respect to FIG. 8 as performed at 802, 804, and 806. Following 806, method 1000 proceeds to 1008, in which the conductors and cable jacket are terminated, resulting in first and second ends of the patch cable.
  • connector plugs e.g., connector plugs 220
  • connector plugs 220 are applied to the first and second ends of the patch cable, as created via the termination performed at 1008.
  • FIGS. 8-10 illustrate methods in accordance with certain aspects of this disclosure. While, for purposes of simplicity of explanation, the methods are shown and described as series of acts, it is noted that this disclosure is not limited by the order of acts, as some acts may occur in different orders and/or concurrently with other acts from that shown and described herein. For example, those skilled in the art will understand and appreciate that methods can alternatively be represented as a series of interrelated states or events, such as in a state diagram. Moreover, not all illustrated acts may be required to implement methods in accordance with certain aspects of this disclosure.
  • the terms (including a reference to a “means”) used to describe such components are intended to also include, unless otherwise indicated, any structure(s) which performs the specified function of the described component (e.g., a functional equivalent), even if not structurally equivalent to the disclosed structure.
  • any structure(s) which performs the specified function of the described component e.g., a functional equivalent
  • a particular feature of the disclosed subject matter may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for any given or particular application.
  • a first determination does not indicate or imply that the first determination is to be made before the second determination, or vice versa, etc.
  • the description of illustrated embodiments of the subject disclosure as provided herein, including what is described in the Abstract, is not intended to be exhaustive or to limit the disclosed embodiments to the precise forms disclosed. While specific embodiments and examples are described herein for illustrative purposes, various modifications are possible that are considered within the scope of such embodiments and examples, as one skilled in the art can recognize.

Landscapes

  • Insulated Conductors (AREA)

Abstract

L'invention concerne un câble et des cordons de raccordement torsadés en cuivre, classés conformes à la régulation des produits de construction (CPR). Un câble de raccordement (100) peut comprendre des conducteurs électriques (110) comportant des brins conducteurs respectifs (120), les conducteurs électriques étant agencés en paires torsadées (130) ; et une gaine (140) englobant les conducteurs électriques, la gaine étant composée d'un matériau résistant au feu (par exemple, un matériau classé CPR). Un autre câble de raccordement peut comprendre des conducteurs électriques, chacun des conducteurs électriques comprenant une pluralité de brins conducteurs, les conducteurs électriques étant agencés en paires torsadées ; des isolateurs de conducteur englobant des conducteurs électriques respectifs parmi les conducteurs électriques, les isolateurs de conducteur étant composés d'un matériau résistant au feu ; et une gaine englobant les conducteurs électriques et les isolateurs de conducteur.
EP22713505.0A 2022-04-05 2022-04-05 Câble et cordons de raccordement torsadés en cuivre résistants au feu Pending EP4278369A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2022/053154 WO2023194771A1 (fr) 2022-04-05 2022-04-05 Câble et cordons de raccordement torsadés en cuivre résistants au feu

Publications (1)

Publication Number Publication Date
EP4278369A1 true EP4278369A1 (fr) 2023-11-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22713505.0A Pending EP4278369A1 (fr) 2022-04-05 2022-04-05 Câble et cordons de raccordement torsadés en cuivre résistants au feu

Country Status (2)

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EP (1) EP4278369A1 (fr)
WO (1) WO2023194771A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7696437B2 (en) * 2006-09-21 2010-04-13 Belden Technologies, Inc. Telecommunications cable
US9601233B1 (en) * 2015-05-28 2017-03-21 Superior Essex International LP Plenum rated twisted pair communication cables
US10937569B2 (en) * 2018-03-28 2021-03-02 General Cable Technologies Corporation Fire resistant data communication cable

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