EP2395515A1 - Câble luminescent - Google Patents

Câble luminescent Download PDF

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Publication number
EP2395515A1
EP2395515A1 EP10165751A EP10165751A EP2395515A1 EP 2395515 A1 EP2395515 A1 EP 2395515A1 EP 10165751 A EP10165751 A EP 10165751A EP 10165751 A EP10165751 A EP 10165751A EP 2395515 A1 EP2395515 A1 EP 2395515A1
Authority
EP
European Patent Office
Prior art keywords
cable
sheath
signal
phosphor
luminous
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.)
Withdrawn
Application number
EP10165751A
Other languages
German (de)
English (en)
Inventor
Jürgen Schambier
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.)
Lapp Engineering AG
Original Assignee
Lapp Engineering AG
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 Lapp Engineering AG filed Critical Lapp Engineering AG
Priority to EP10165751A priority Critical patent/EP2395515A1/fr
Publication of EP2395515A1 publication Critical patent/EP2395515A1/fr
Withdrawn legal-status Critical Current

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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
    • H01B7/36—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
    • H01B7/366—Insulated conductors or cables characterised by their form with distinguishing or length marks being a tape, thread or wire extending the full length of the conductor or cable

Definitions

  • the invention relates to a luminous cable according to the preamble of patent claim 1.
  • Electrical cables are permanently or temporarily installed depending on the environment and requirements.
  • temporarily laid cables often run across rooms, corridors and, typically at public events, across squares or paths and therefore have to be specially secured, for example covered. If individual cables are not laid securely, they can be a source of danger to passers-by, especially in inadequate lighting conditions.
  • the use of luminescent cables reduces these problems.
  • a luminescent electrical cable whose outer jacket is provided with a phosphor of zinc sulfide.
  • the zinc sulfide serves as a phosphorescent substance, which can light up the cable after it was exposed to electromagnetic radiation of appropriate wavelength.
  • luminescent substances based on zinc sulphide can endanger human health and pollute the environment.
  • luminescent zinc sulfides are partially mixed with an alpha or beta emitter, for example with radium or tritium, and thus radioactive.
  • an alpha or beta emitter for example with radium or tritium
  • zinc sulfide based phosphors are prone to graying or bleaching. That is, after a certain number of activation processes, the luminosity of the phosphor decreases considerably. The decrease in storage capacity is particularly disadvantageous in costly installations that are intended for a long-lasting use.
  • phosphors based on zinc sulfide often have a greyish base color and thus have a low luminance in normal light conditions, especially in daylight.
  • the zinc sulfide-based phosphor is also relatively hard and consists of grains of different sizes, which charge for incorporation into a compound and the extrusion process. On the one hand, damage to the extrusion tools can occur. On the other hand, the different sized grains can also cause uneven afterglow of the implanted phosphor.
  • the present invention is therefore an object of the invention to provide an improved luminous cable.
  • a luminous cable with improved lighting properties is to create, which are hardly changed even after prolonged use.
  • the glowing cable should also be easily visible in normal light conditions, such as daylight.
  • the luminous cable should have a higher light efficiency and more efficiently store and dispense radiant energy supplied by an improved storage process.
  • the luminous cable according to the invention comprises at least one optical and / or electrical conductor, which is typically provided with an insulation layer and extends in the cable longitudinal direction and is enclosed by a luminous jacket.
  • a light-transparent inner cable sheath made of plastic is provided, which is offset over the entire cross-section with material of a signal-colored luminescent material and which is enveloped by a continuous, outer cable sheath of light-transparent plastic.
  • the admixture of the signal-colored phosphor gives the inner cable sheath an optionally pronounced coloring.
  • the material of the phosphor is signal-colored, has a cable with inventive inner cable even under normal lighting visually well perceived luminosity and stands out in contrast from its environment and therefore can be well recognized by people.
  • the phosphor is also stimulated by exposure to electromagnetic radiation to illuminate, which further increases the visibility of the cable. After the elimination of the radiation effect that keeps Illuminate for a long time, so that the cable is visible even in the dark.
  • the light-transparent outer cable jacket is transparent both to the incident electromagnetic radiation and to the radiation emitted by the phosphor.
  • the implanted phosphor can absorb and release radiant energy with high efficiency.
  • the phosphor is protected against mechanical abrasion and environmental influences, such as moisture or contamination. Deterging contaminants can be removed with cleaning agents without affecting the implanted phosphor.
  • the inner cable sheath is made of a material to which the phosphor has been mixed in such a way that the pigments of the signal-colored phosphor are at least approximately evenly distributed.
  • the phosphor in the form of a liquid or a powder is admixed with the material intended for the production of the inner cable sheath.
  • the admixture of the phosphor as a liquid allows a particularly simple and uniform mixing of a compound for the inner cable sheath with the phosphor. Since the entire inner cable sheath is offset with the phosphor, the cable can be easily recognized, regardless of its position or torsion.
  • the pigments of the signal-colored phosphor consist of a compound of strontium and aluminum oxide (Al x O x , strontium aluminate) or a compound of calcium and aluminum oxide (Al x O x , calcium aluminate).
  • These compounds are preferably doped with at least one of europium and dysprosium and neodymium.
  • one of the SrAl 2 O 4 Eu, Dy (yellow-green) or Sr 4 Al 14 O 25 : Eu, Dy (blue-green) or CaAl 2 O 4 : Eu, Nd (purple).
  • the pigments of the signal-colored phosphor preferably have a particle size k in a range k> 5 ⁇ m and k ⁇ 80 ⁇ m, preferably a particle size k in a range k> 30 ⁇ m and k ⁇ 45 ⁇ m.
  • the fine and uniform particle size k of the pigments is advantageous for thorough mixing with the compound for the inner cable sheath.
  • the tools are protected against excessive abrasion during mixing and when extruding the material intended for the production of the inner cable sheath.
  • the compound for the inner cable sheath a proportion of 1% to 20%, preferably 4% to 6%, more preferably 5% of material of the signal-colored phosphor admixed.
  • the signal-colored phosphor is selected such that it absorbs energy of electromagnetic radiation having a wavelength of 200 nm-450 nm. These wavelengths are available in daylight as well as in commonly used white artificial light and thus allow activation of the luminous cable in a variety of environments.
  • the pigments produced from these compounds have a very high energy storage capacity, which they absorb in the form of electromagnetic radiation and then emit it over a longer period of time than light radiation.
  • the luminance of the compounds used according to the invention is about ten times greater when fully activated. As a result, it takes about ten times longer until the same luminance value of, for example, 100mCa / m 2 is exceeded.
  • the coloring of the pigments in daylight is a striking signal color. Depending on the location of the cable, it is possible to select a specific emitting wavelength and thus a color which clearly stands out from the surroundings.
  • the signal-colored phosphor consists of a non-toxic material and does not emit ionizing radiation. On the use of otherwise commonly used materials is omitted.
  • the use of health-friendly and environmentally friendly substances does not result in additional costs for the production and disposal of the cables, taking into account existing health and environmental regulations. Due to the excellent luminous properties of the phosphors described above, it is possible to dispense with the admixture of an alpha emitter or beta emitter, such as, for example, radium or tritium, to increase and prolong the luminosity.
  • the signal-colored phosphor retains its luminous properties unchanged even with repeated and / or continuous activation by electromagnetic radiation.
  • the life of the cable is not limited by a reduction in the storage capacity of the phosphor.
  • a compound for the cable outer sheath made of polyurethane PUR.
  • Polyurethane is particularly resistant to abrasion and can be easily cleaned both mechanically and by chemical means.
  • the luminosity of the cable is not limited by contamination or abrasion.
  • polyurethane is transparent to electromagnetic radiation in the range of 200nm - 780nm. Incident radiation therefore passes virtually unattenuated through the outer jacket to the pigments of the phosphor and can be discharged virtually unattenuated by the outer sheath again.
  • the wall thickness of the inner cable sheath is preferably selected in a range of 1mm to 5mm. This makes it possible to implant a relatively high amount of phosphor in the inner cable sheath, which thus serves as a good radiation source after charging.
  • the wall thickness of the inner cable sheath in the specified range generates an optimum of luminosity.
  • the wall thickness of the cable outer sheath is preferably also selected in a range of 1mm to 5mm. Depending on the strength of the outer cable jacket whose wall thickness can be significantly reduced. In this case, cables according to the invention have the advantage that the cable outer sheath replaced after relatively long use with relatively little effort and thus a practically new cable can be made.
  • the specified wall thickness gives the cable outer jacket a high mechanical strength and the cable inner sheath a correspondingly good protection.
  • the cable inner sheath and the cable outer sheath must together fulfill a predetermined dielectric strength for the luminous cable.
  • an at least outwardly reflective inner layer is disposed between the at least one conductor and cable inner jacket, which reflects electromagnetic radiation having a wavelength between 200 - 780nm.
  • electromagnetic radiation having a wavelength between 200 - 780nm.
  • those electromagnetic radiation which is radiated from the signal-colored phosphor to the inside of the cable in the direction of the conductor is reflected and directed in the direction of the cable outer jacket, or in the direction of a viewer.
  • the luminescent material emits the light evenly in all directions, the reflection can increase the luminosity and thus the visibility of the cable by up to 50%.
  • the pigments of the phosphor can be activated more efficiently, as well as the incident electromagnetic radiation is reflected on the inner layer and fed to the pigments.
  • an at least outwardly reflective outer layer is disposed between the inner cable sheath and the outer cable sheath.
  • the outer layer therefore causes light reflections, which cause the cable to shine under direct light irradiation, so that it is very clearly visible both during the day and at night.
  • the reflective outer layer acts similar to reflectors, as they are used in transport.
  • the inner layer and the outer layer can be advantageously realized in various ways.
  • the inner layer is applied by vapor deposition on the at least one conductor or its insulating layer.
  • Other options for coating the conductor are also feasible.
  • the inner layer may also be formed by an inner foil, e.g. helically wound around the conductor.
  • the preferably provided outer layer can be realized by a vapor deposition or coating of the inner cable sheath.
  • the outer layer can be realized by means of an outer film which, like the inner film, may preferably consist of a plastic film coated with reflective material, which is wound around the inner cable sheath.
  • the outer layer of the inner cable sheath is thereby covered completely or with a degree of coverage in the range of 10% to 90%, preferably 40% to 60%.
  • the outer film can be wound overlapping or non-overlapping or provided with openings.
  • the inner film and / or the outer film may be made of metal or of plastic coated with metal.
  • the realization of the inner layer and the outer layer by vapor deposition or coating can be realized with little effort and correspondingly low costs.
  • the course and reflectance of the inner layer and the outer layer can be finely selected by the amount of material applied.
  • a helical application of a film is also used, for example, for shielding films and is therefore advantageously integrated into the production process of the luminous cable.
  • a uniform and optimal relationship between the luminosity of the cable and the reflection of the incident radiation over a given length of cable can be achieved in all methods.
  • the cable is thus easy to recognize in all kinds of lighting conditions. In normal lighting conditions, such as in daylight, the signal-colored color of the cable sheath is clearly visible. In dark and unfavorable lighting conditions, the previously activated pigments of the phosphor of the inner cable sheath light up.
  • FIG. 1 shows a luminous cable 10 according to the invention with a plurality of conductors 12, which extend in the cable longitudinal direction.
  • the conductors 12 are electrical conductors 12 made of copper or aluminum, for example, or optical conductors 12 which comprise one or more glass fibers.
  • the conductor 12 additionally comprises an insulating layer 14.
  • the conductors 12 are enclosed by a luminous inner cable sheath 14.
  • the preferably transparent compound of the cable inner jacket 14 consists for example of polyvinyl chloride PVC or polyurethane PUR.
  • a compound is provided, which is mixed with a phosphor 18, which is mixed with pigments.
  • a phosphor 18 which is mixed with pigments.
  • attention must be paid to uniform mixing, which should lead to uniform coloration and uniform illumination of the cable 10.
  • fine-grained phosphors 18 in the form of a powder or phosphors 18 dissolved in a liquid.
  • this compound After deployment, this compound is extruded from a die and continuously applied to an underlying cable layer.
  • phosphors 18 substances are referred to, which are excited by electromagnetic radiation of an activation emitter to light up.
  • Phosphors 18 are among the cold chandeliers.
  • the emission of optical radiation results from the transition from an excited state e.g. of an atom (ion) to the ground state. That is, the elements of the phosphor 18 will first be put into an excited, higher energy state by incident radiation. This higher energy state is maintained over a certain period of time, the energy thus remains stored in the phosphor 18. After a certain time, the elements of the phosphor fall back into the ground state and give the stored energy in the form of electromagnetic radiation (light) again.
  • Light is electromagnetic radiation in a wavelength range which can be perceived by the human eye. This wavelength range is approximately between 380nm to 780nm.
  • phosphors 18 There are various types of phosphors 18, fluorescent phosphors and / or phosphorescent phosphors.
  • fluorescent phosphors In the case of fluorescent phosphors, afterglow stops within fractions of a second after the removal of the incident radiation.
  • phosphorescent phosphors In the case of phosphorescent phosphors, on the other hand, afterglow does not stop until after hours.
  • a quality feature of a phosphorescent substance is to maintain the highest possible luminosity for as long as possible after the elimination of the activation radiator.
  • the outer cable jacket 20 encloses the entire luminous inner cable sheath 16 and, like the inner cable sheath 16, consists of a commercially available compound.
  • the incident Radiation can reach unhindered to the pigments of the phosphor 18, 20 materials are used for the manufacture of the cable inner sheath 16 and the cable outer sheath, which are transparent at least for the relevant wavelength range of the incident and the emitted radiation 26 and 28 respectively.
  • the cable outer jacket 20 is also produced by extrusion.
  • Polyurethane PUR is preferably used for the cable outer jacket 20.
  • PUR has a high resistance to mechanical effects. In particular, hardly results in abrasion under strong mechanical stress, which diffusely reflect a previously transparent plastic.
  • FIG. 2 shows the inventive luminous cable in a sectional view from the front.
  • conductors 12 are shown in the center of the provided with an insulating layer 14 .
  • a wall thickness in the range of 1 mm to 5 mm is selected for the inner cable sheath 16.
  • the wall thickness of the outer cable jacket 20, which protects the inner cable sheath 16 against physical and chemical effects, is preferably also selected in the range of 1 mm to 5 mm. If a sufficient mechanical strength of the outer cable jacket 20 is given, then its wall thickness is preferably reduced accordingly.
  • the ratio of the wall thickness of the inner cable jacket 16 to the outer cable jacket 20 is in the range of 1: 1 to 1:10.
  • FIG. 2 shows two views A and B of the cross section of the inventive cable 10th
  • View A shows the cable 10 during the process of activation of the phosphor 18 by an activation radiator 30.
  • a portion of the incident radiation is directly reflected by the luminous cable 10. Passersby can easily perceive this radiation, which has a particular wavelength or signal color, and thereby recognize the luminous cable 10.
  • Another portion of the radiation 26 incident on the luminous cable 10 is absorbed by the phosphor 18 of the luminous cable 10, thereby storing energy. The stored energy is given off by fluorescence (immediate light emission) or phosphorescence (delayed light emission) from the phosphor 18 again.
  • the cable In daylight, a radiation resulting from the reflection and / or fluorescence is reflected in a first wavelength range. In the dark, a phosphorescent radiation appears in the same or a further wavelength range. In daylight, therefore, the cable has a readily recognizable luminescent color, e.g. bright yellow, on. In darkness, the cable emits a well-visible radiation in the wavelength range, for example, the color green.
  • the luminous colors can be individually selected by the user.
  • Signal colors are colors which, due to their wavelength, are especially pronounced for the human eye. Often signal colors, such as bright yellow, bright green or orange are used for marking or signaling hazards.
  • View B shows the situation after the elimination of the activation radiator 30.
  • the phosphor 18 now returns the stored energy in the form of light to the environment when returning to the ground state.
  • This emitted light 28 is not directed and therefore leads to a diffuse illumination.
  • the emitted light 28 usually has a higher wavelength than the electromagnetic radiation of the activation radiator 30th
  • FIG. 3 shows a graph with the course of the proportion of pigments as a function of the grain size k in a provided for the manufacture of inventive cable 10 phosphor 18.
  • the pigments have a grain size k in a range of a few microns to 80 microns.
  • a phosphor 18 which has a high proportion of pigments with a grain size k which is in the range of 30 ⁇ m-50 ⁇ m.
  • the compound of the inner cable sheath 16 a proportion of about 1% to 20% of pigments of the signal-colored phosphor 18 is mixed. At higher proportion of the cable inner sheath 16 is brittle, at a lower proportion, the luminosity is too low. A pigment content of about 5% of the signal-colored phosphor 15 in the cable inner casing 16 has been found to be optimal. This results in a good storage capacity and thus a good luminosity for the luminous cable 10, at the same time the flexibility of the inner cable jacket 16 is maintained.
  • the pigments of the signal-colored phosphor 18 are crystalline and consist for example of M-Al x O x .
  • M corresponds to at least one element from the group calcium, strontium, barium and magnesium.
  • the crystal preferably contains europium as the co-activator, preferably an element from the following group: lanthanum, cerium, praseodymium, neodymium, samarium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, tin, bismuth.
  • the activator and the co-activator are targeted by impurities, so-called dopants inserted into the crystal. Only by this contamination is a storage of energy possible.
  • the phosphor may also have a mother crystalline Sr 4 Al 14 O 25 , in turn, the previously described activators and co-activators could be used.
  • the pigments described above have a standard emission maximum of the emitted light 28 at a wavelength of 520 nm (yellow-green), 490 nm (blue-green) or 440 nm (purple).
  • the emission maximum largely determines the coloration perceived by the human eye.
  • the color palette of the afterglow colors can be additionally extended and tuned.
  • the excitation of the described phosphor 18 takes place with electromagnetic radiation at a wavelength between 200 nm-450 nm.
  • FIG. 4 shows a further embodiment of the inventive luminous cable 10.
  • an outer film 25 is wound around the inner cable sheath 16 helically as a reflective outer layer 24.
  • the outer film 25 reflects part of the incident radiation 26, in particular of the visible to the human eye, incident light.
  • the outer film 25 can be attached to the inner cable sheath 16 in a variety of ways. Thus, it can be attached, for example, in individual sections or selectively on the inner cable sheath 16. It can also be several outer films 25 helically or, for example, in the opposite direction, crossing attached.
  • the outer film 25 can be additionally attached with an adhesive, for example, on the inner cable sheath 16. Phosphor 18 can also be added to the adhesive.
  • the outer film 25 preferably covers approximately 50% of the inner cable jacket 16.
  • the outer film 25 is semi-transparent and allows a high proportion of the incident radiation 26 and the radiation emitted by the phosphor 18 radiation 28 to pass, a higher coverage of the inner cable jacket 16 with the outer film 25 are chosen. In this case, the outer film 25% - cover 100% of the inner cable jacket 16.
  • FIG. 5 shows a further embodiment of the novel luminous cable 10.
  • an inner film 23 is wound around the conductor 12 as a reflective inner layer 22 under the inner cable sheath 16.
  • the inner foil 23 can be applied in the same way as the outer foil 25 described above.
  • the reflective inner layer 22 preferably completely covers the conductors 12 and reflects electromagnetic radiation in the range of 200 nm-780 nm as completely as possible.
  • the reflective outer layer 24 and the inner reflective layer 22 may also be coatings which are applied to the underlying layer, for example by immersion in a bath, by vapor deposition or by an extrusion process.
  • FIG. 6 shows a cross-section through an embodiment of the inventive luminous cable 10, with a view A, in which radiation 26 is emitted from an activation radiator 30 to the cable 10, and a view B, is emitted in the radiation 28 of cable 10.
  • the design of the luminous cable 10 is a combination of in the FIG. 4 and 5 described luminous cable 10 having a reflective inner layer 22 and a reflective outer layer 24. Furthermore, both the inner cable sheath 16 and the outer cable sheath 20 are transparent.
  • incident radiation 26 at least partially reaches the phosphor 18 below the reflective outer layer 22.
  • the radiation 26 can, as in FIG FIG. 4 described by free spaces in the outer layer 24 or penetrate through the only partially reflective outer layer 24 in the cable inner shell 16.
  • the reflective outer layer 24 allows a predominant part of the incident radiation 26 to pass in a range of 200 nm-450 nm and also reflects a predominant part of the incident radiation 26 in the region of the light visible to humans (380 nm-780 nm).
  • activation process A meets a portion of the incident radiation 26 on lying in the cable inner jacket 16 phosphor 18. This absorbs the radiation 26 and is thereby placed in a higher energy state. Due to the reflective inner layer 22, the radiation 26 which is not absorbed by the phosphor 18 is reflected and can be absorbed by the phosphor 18 when it passes through the cable inner jacket 16 again. In turn, if the radiation 26 is not absorbed, it may exit the cable jacket 16 and thus contribute to better visibility of the luminous cable 10 under normal illumination. However, the radiation 26 can be reflected again by the reflective outer layer 24 and again passes through the cable inner jacket 16.
  • Discharge process B in which radiation 28 is emitted, shows the situation after the elimination of the activation radiator 30.
  • the phosphor 18 returns to the ground state, the stored energy in the form of radiation 28 or visible light again from.
  • This emitted light 28 is not directed, whereby a relatively high proportion of radiation is emitted to the inner layer 22 of the luminous cable 10, which reflects this radiation 28.
  • This radiation 28 is released after passing through the inner cable jacket 16 and the outer cable jacket 20 to the environment. This effect achieves up to 50% higher light efficiency, which is why the Addition of phosphor 18 to the inner cable sheath 16 can be reduced accordingly.
  • the inventive cable 10 can therefore be produced with improved luminous properties and at the same time with lower production costs.
  • the cable inner casing 16 and / or the outer cable sheath 20 are added.
  • This radiation can be achieved, which are particularly advantageous in daylight and in the dark.
  • the reflective inner layer 22 or the outer layer 24 or a binder used can also be provided with phosphor 18.
  • the inventive cable 10 can be further adapted to the needs of the user.

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EP10165751A 2010-06-11 2010-06-11 Câble luminescent Withdrawn EP2395515A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10165751A EP2395515A1 (fr) 2010-06-11 2010-06-11 Câble luminescent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10165751A EP2395515A1 (fr) 2010-06-11 2010-06-11 Câble luminescent

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EP2395515A1 true EP2395515A1 (fr) 2011-12-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104637577A (zh) * 2013-11-07 2015-05-20 瑞士电信公司 具有照明的通信电缆
DE102017207090A1 (de) * 2017-04-27 2018-10-31 Audi Ag Phosphoreszierendes Ladekabel für Elektrofahrzeuge
IT202100029024A1 (it) 2021-11-16 2023-05-16 Prysmian Spa Cavo elettrico e sistema di ricarica includente detto cavo elettrico

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3910053A1 (de) 1989-03-28 1990-10-04 Gore W L & Ass Gmbh Elektrisches kabel
DE9211949U1 (de) * 1992-09-04 1992-10-22 kabelmetal electro GmbH, 3000 Hannover Elektrisches oder optisches Kabel
JPH11288627A (ja) * 1998-03-31 1999-10-19 Tokyo Densen Kogyo Kk 被覆電線
JP2004349077A (ja) * 2003-05-21 2004-12-09 Misuzu Seisen Kk 電線及びケーブル

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3910053A1 (de) 1989-03-28 1990-10-04 Gore W L & Ass Gmbh Elektrisches kabel
DE9211949U1 (de) * 1992-09-04 1992-10-22 kabelmetal electro GmbH, 3000 Hannover Elektrisches oder optisches Kabel
JPH11288627A (ja) * 1998-03-31 1999-10-19 Tokyo Densen Kogyo Kk 被覆電線
JP2004349077A (ja) * 2003-05-21 2004-12-09 Misuzu Seisen Kk 電線及びケーブル

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104637577A (zh) * 2013-11-07 2015-05-20 瑞士电信公司 具有照明的通信电缆
US11898738B2 (en) 2013-11-07 2024-02-13 Interdigital Ce Patent Holdings, Sas Communication cables with illumination
DE102017207090A1 (de) * 2017-04-27 2018-10-31 Audi Ag Phosphoreszierendes Ladekabel für Elektrofahrzeuge
DE102017207090B4 (de) 2017-04-27 2023-10-26 Audi Ag Phosphoreszierendes Ladekabel für Elektrofahrzeuge
IT202100029024A1 (it) 2021-11-16 2023-05-16 Prysmian Spa Cavo elettrico e sistema di ricarica includente detto cavo elettrico

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