EP3616220A1 - Cable electrique pour cablage de parafoudre - Google Patents
Cable electrique pour cablage de parafoudreInfo
- Publication number
- EP3616220A1 EP3616220A1 EP18719571.4A EP18719571A EP3616220A1 EP 3616220 A1 EP3616220 A1 EP 3616220A1 EP 18719571 A EP18719571 A EP 18719571A EP 3616220 A1 EP3616220 A1 EP 3616220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- electrical
- insulating layer
- conductor
- electrical cable
- 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
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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2813—Protection against damage caused by electrical, chemical or water tree deterioration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
-
- 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
- H01B7/08—Flat or ribbon cables
- H01B7/0861—Flat or ribbon cables comprising one or more screens
-
- 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
- H01B7/0009—Details relating to the conductive cores
- H01B7/0018—Strip or foil conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Definitions
- the invention lies in the field of wiring surge arresters, specifically surge arresters used for the main protection of all low voltage electrical installations.
- a surge arrester prevents the propagation of overvoltages in electrical installations and protects equipment.
- the invention relates to the wiring and integration of surge arresters in a dedicated installation, such as an electrical panel or electrical cabinet.
- a dedicated installation such as an electrical panel or electrical cabinet.
- any electrical panel or cabinet later which should be interpreted more generically as an envelope that contains all or part of the devices used in the composition of electrical equipment (cabinet, switchboard, electrical boxes. ..).
- the electrical cabinet is either grounded or a reference potential said mass.
- a surge arrester is a device intended to protect a material or electrical equipment against high transient overvoltages and sometimes also to limit the duration and often the amplitude of the following current.
- a surge arrester protects against overvoltage, usually caused by lightning, but also by other causes such as overvoltage industry or maneuver, or electrostatic overvoltages. There is also talk in this case surge protector.
- a surge arrester is an electrical component whose function is to trim overvoltages appearing on an electrical network. It is usually connected between each of the equipment to be protected and the earth, and this, for each active driver to protect. It is dimensioned according to the characteristics of the network (voltage, ground connection scheme, short circuit current ...) but especially according to the overvoltage Uw that the equipment to be protected can support over a very short time interval (from 10 to a few hundred ⁇ ).
- the protection level of the arrester is defined by the Up characteristic, which is essential for sizing the protection of the equipment. However the performance and effectiveness of a surge arrester are not only played on its characteristic Up.
- the total surge undergone by a close equipment (up to ten meters) of a surge arrester is the sum of the overvoltages appearing at the terminals surge arrester and overvoltages appearing in the components and conductors connecting the surge arrester to the electrical network on the one hand and to the earth on the other hand.
- This voltage is called Real Up, as shown in Figure 1.
- the overvoltages appearing at the terminals of the conductors are related to their inductances and to the current which passes through them, more particularly to the variations of the current.
- the international standards IEC 61 643-12 and 62305-4 as well as the French standard NFC 15-100 and the associated guide UTE 15-443 recommend a maximum total length of 50 cm for the wiring of a surge arrester. This length corresponds to a margin of 20% between Up and the withstand voltage of the equipment Uw. An illustration of this rule and an example of wiring in the control cabinet is given in Figure 2.
- Driver inductance is also due to its position in the switchboard, and to its interactions with other drivers. It is why another rule of the guide UTE 15-443 recommends to press the cables against the metal structure of the electrical panel when it exists to minimize the ground loop and to benefit from the reducing effect of the disturbances. In other words, it is a question of reducing the surfaces of loops to lower the mutual inductance of the cables.
- the conductors must have a minimum section of 6 mm 2 for Type 2 surge arresters and 1 6 mm 2 for Type 1 surge arresters, and are generally made of copper.
- Type 1 surge arresters are surge arresters capable of discharging a very large lightning current, usually from the earth to the energy distribution network. They are installed in the main electrical panel when the building is equipped with a lightning rod;
- Type 2 surge arresters are surge arresters intended to discharge currents generated by indirect lightning strikes and causing overvoltages induced or conducted on the power distribution network. They are installed in the main distribution board or in divisional boards.
- the wiring of a surge arrester is usually carried out using cylindrical industrial conductors, rigid or not, composed of one or more multi-stranded strands.
- Their implementation in an electrical panel is not easy (crimping lugs, rigidity of the cable, requires to pass in chutes that lengthen the length of the conductors, aesthetics ).
- the patent JPH07272551 describes a cable comprising a core (central portion), different layers of insulators, and a varistor. The goal is to replace the lightning protection device.
- the performance of this cable is not described, but the fact that the component is a varistor limits its ability to withstand strong lightning currents and manage its end of life And most importantly it does not respond to the technical problem posed by the need previously expressed, the cables having large diameters because of the different layers.
- Another patent US5384429 relates to a cylindrical conductor for connecting a surge arrester to an electrical network enjoying a low inductive drop.
- the core is separated from the screen by a thick insulating material (the thickness is deduced from the ratio d / D).
- This conductor also does not respond to the problem posed, the cables having large diameters because of the different layers and the thickness of the insulation.
- the problem is to have a driver that allows to overcome the maximum total length of 50 cm for the wiring of a surge arrester, while maintaining its effectiveness.
- Another need is to improve the installation of lightning conductors in an electrical cabinet, and this, in a simple and economical way, while allowing an operator to achieve clean and neat wiring, which is often incompatible with the constraints of wiring a surge arrester.
- An object of the invention is in particular to meet the need previously expressed.
- the subject of the invention is a cable as described by the claims.
- an electrical cable for arrester wiring comprising:
- a first insulating layer encasing said conductive element, a metal envelope enveloping said first insulating layer, forming a screen and intended to be connected to a ground,
- a second insulating layer encasing said metal casing, all forming a flat-shaped cable.
- the "central conducting element” may also be called “soul” or “conducting soul”.
- flat shape means an elongated cable shape, substantially and mainly parallelepipedic, and whose thickness is very small relative to its width and / or length.
- Screw means a metal shell whose two ends are connected to the ground of an appliance or to the earth and surrounding one or more circuits or components to protect them from the action of electric, magnetic or electromagnetic fields outside, or, conversely, to prevent them from creating such a field around them. We also talk about armor.
- the flat geometry of the cable 1 according to the invention makes it possible to reduce the value of the circuit's own inductance, in particular by virtue of the skin effect, linked to a better current distribution over the entire periphery of the conductor, but especially to control the mutual inductance.
- the shape of the conductors facilitates the plating of the latter against a metal wall of the cabinet, which contributes to lowering the mutual inductance between the conductors and the ground plane (generally, the ground plane is a flat wall of the electrical cabinet grounded).
- a metal screen is sandwiched between two layers of insulation and grounded at both ends, allowing mutual inductance to be controlled and even more acceptable cabling lengths to be increased significantly.
- the cable according to the invention makes it possible to increase the admissible lengths of wiring to at least two meters. This results in a gain in labor (study and implementation), and a sharp reduction in the difficulties of wiring and integration of surge arresters in electrical panels.
- the electric cable has a total external thickness of less than 8 mm and a total width of between 24 mm and 50 mm.
- the thickness of the metal casing of the electric cable is between 0.07 mm and 0.1 mm.
- the metal casing is made of copper.
- the inner conductor is composed of copper.
- the inner conductor is made of braided and flattened strands.
- the section of the conductor is greater than 6 mm 2 .
- the section of the conductor is between 1 6 and 25 mm 2 .
- the first insulating layer is composed of polyvinyl chloride (PVC).
- the second insulating layer is composed of polyvinyl chloride (PVC).
- the thickness of the first insulating layer is between 1.9 mm and 2.1 mm.
- the thickness of the second insulating layer is between 0.4 mm and 0.6 mm.
- the ratio between the width of the core and the thickness of the core is greater than 10.
- the inner conductor has at least one pierced end so as to allow its electrical connection, for example to a circuit breaker or a fuse holder.
- This configuration is particularly suitable for circuit breakers or fuse doors with molded housings, the ends and holes allowing bolting to the circuit breaker connection pads. The ends are often tinned, in order to obtain a better electrical contact.
- the inner conductor has at one of its ends an outer profile capable of cooperating with a recess in a lug, said lug being intended to be electrically connected, for example to a circuit breaker or a fuse holder.
- This configuration is particularly suitable for circuit breakers or fuse doors with cage terminals, the connection being made using a terminal.
- the invention also relates to an overvoltage protection device comprising at least one such cable. More specifically, the protection device against overvoltages of an electrical equipment comprises:
- At least one arrester connected to said device
- At least one cable according to the invention, the central conductor of said cable connecting the arrester to a ground plane, the screen of said cable being electrically connected to said ground plane.
- the protection device further comprises:
- the cables being cables according to the invention.
- the surge arrester and fuse holder or circuit breaker or other disconnector are located near the point of arrival of the power supply.
- the length L1 between the power supply and the disconnector and the length L2 between the disconnector and the surge arrester are small and can be realized by standard cables.
- FIG. 1 illustrates a block diagram of implantation of a surge arrester
- FIG. 2 illustrates an example of wiring a surge arrester in an electrical cabinet, related to the recommendations of the guide UTE 15-443;
- FIG. 3 illustrates an exemplary embodiment of an electric lightning protection cable according to the invention
- - Figure 4 illustrates an electric cable according to another embodiment
- - Figure 5 illustrates an electric cable according to another embodiment
- FIG. 6 illustrates a protection installation according to the invention
- FIG. 7 A illustrates an adaptation of the electrical cable for implanting it in an electrical cabinet
- FIG. 7B illustrates a metal connector for taking up the screen for the implantation of the cable in an electrical cabinet
- FIG. 8A shows a cable with a metal connector recovery and wrapped with a sheath
- FIG. 8B shows a cable equipped with a recovery metal connector and wrapped in a sheath and mounted on a rail
- FIG. 9A shows schematically the device used to measure the intrinsic inductance of the cable according to the invention.
- FIG. 9B schematizes the device used to measure the mutual and clean inductance according to the invention.
- FIG. 1 which illustrates a block diagram of implantation of a surge arrester, has already been partly commented in the introduction of the present application. It has a circuit diagram comprising a surge arrester 1 connected to a fuse 120 via a cable 102 of length L2 for the neutral N and a surge arrester 1 10 'connected to a fuse 1' via a cable 102 'of length L2' for the phase P. Each arrester is connected, via a cable 103, 103 'of length L3, L3', to a local earth bar 140, or earth bar of the cabinet, or ground plane. Finally, each fuse 120, 120 'is connected to the electrical network, and to the equipment to be protected via a cable 101, 101' of length L1, ⁇ _1 '. In this figure, there are two surge arresters, one per active conductor (N and P) to be protected.
- N and P active conductor
- FIG 2 which illustrates an example of wiring a surge arrester in an electrical panel has also been partly commented in the introduction of this application.
- An electrical panel 130 is shown in dotted lines. It contains a surge arrester 1 10 connected to two disconnectors, for example circuit breakers 121 and 121 'via two cables 102 and 102' of length L2 and L2 '.
- the arrester 1 10 is connected, via a cable 103 of length L3, to a ground bar 140 via an intermediate ground terminal block 141, which is connected to a grounding plug 150.
- the circuit breakers 121, 121 ' are connected to the electrical supply via two cables 101 and 101 'of length L1 and L1' (L1 and L1 'correspond to the lengths of the cables in the electrical panel, in the example it concerns the cable lengths between circuit breaker 121 and connection terminal blocks 131, 131 'at the electrical supply).
- the electrical supply cables 104, 104 'coming from the network meet the recommendations of the associated guide UTE 15-443 and are grouped together on one and the same side of the electrical panel 130. To avoid mixing disturbed cables and protected cables, the cables 104, 104 'are separated from the cables 105, 105' of departure towards the electrical installation to be protected.
- the sum of the lengths L1 + L2 + L3 (and L1 '+ L2' + L3) must have a total length less than or equal to 50 cm for conventional cables.
- FIG. 3 illustrates an exemplary embodiment of an electric lightning protection cable according to the invention.
- the cable 1 comprises a central conductor 10 of flat shape, whose section is for example at least greater than or equal to 4 mm 2 and preferably greater than or equal to 10 mm 2 .
- the central conductor 10 has for example a section less than or equal to 25 mm 2 .
- the conductor has an equivalent effective cross section of at least 16 mm 2 with a width of 20 mm and a thickness of 1.9 mm.
- the central conductor 10 is flexible enough to be bent and folded so as to be integrated into an electrical cabinet without the risk of breaking or damage. It is preferentially in the form of a flat braided conductive material, for example braided copper wires or strands, possibly all or part tinned. Those skilled in the art will be able to select suitable strand diameters to obtain a flat and flexible conductor, for example strands of 0.15 mm or even 0.20 mm may be used.
- the flat conductor can also be made from several flat copper conductors, arranged in multilayer to get the desired section.
- the conductive core is covered with a first insulating layer 20, for example PVC.
- the thickness of the first insulating layer 20 is for example between 1.9 mm and 2.1 mm, for example 2 mm.
- a metal screen 30 is sandwiched between said first insulating layer 20 and a second insulating layer 40 of dielectric and mechanical characteristics (materials, dimensions, etc.) for example equivalent to those of the first insulating layer.
- the outer insulating material may be of different characteristics.
- the screen 30 is in the form of a thin metal envelope, that is to say with a thickness of the order of 0.1 mm, for example in sheet form. This is usually a thin copper screen.
- the screen is intended to be connected to earth or ground, for example via the electrical cabinet in which the arrester 1 10 is wired.
- FIG. 4 illustrates an electric cable 1 according to a particular embodiment, intended to be electrically connected to a protection circuit, for example to a circuit-breaker 121 or a fuse holder 120.
- An end 1 1 of the central conductive element 10 has a shape adapted to be connected to a circuit breaker 121 or fuse holder 120 with molded housings.
- the end is pierced with a hole 12 adapted to allow the bolting of the conductive element 10 to the connection pads of the circuit breaker or fuse holder (not shown).
- Said end can be tinned, and it can be adapted to improve the approach to said connection pads, for example it may be rounded as shown in Figure 4.
- Figure 5 illustrates another embodiment, suitable for a circuit breaker 121 or a fuse holder 120 provided with cage terminals 121a or 120a.
- the connection is made using a lug 50 crimp on the central conductor.
- the conductor has at one of its ends 1 1 an outer profile adapted to cooperate with a recess in a lug 50, said lug being intended to be connected to the circuit breaker 121 or the fuse holder 120.
- the terminal 50 comprises a tip or sleeve 51 adapted to be inserted into a cage terminal 121a or 122a.
- the sleeve 51 is an integral part of the central conductor 10, avoiding the use of a crimping lug.
- FIG. 6 illustrates an example of implantation of the electric cable 1 according to the invention in a switchboard or an electrical cabinet 130, in order to provide an installation 100 for protecting against the overvoltages of an electrical equipment.
- An electrical cabinet 130 contains a surge arrester 1 10 connected to a circuit breaker 120 via a cable 102 per active conductor to be protected, of length L2.
- the surge arrester 1 10 is connected, via a cable 103 of length L3, to a ground bar 140.
- a fuse holder 120 is connected to the inlet and the installation to be protected via a cable 101 by active conductor to be protected, of length L1 (remember that L1 is the cable length in the electrical panel 130, for example the length between the circuit breaker and the terminal block 131 for electrical arrivals).
- the cable 1 according to the invention is used to produce at least the cable 103 of length L3. It is advantageously pressed against the cabinet 130. Alternatively, it is fixed on a rail (called “DIN rail").
- the total length of conductors can advantageously reach 2 meters, if the cables L1 and L2 are also cables according to the invention, thereby allowing a cable length much greater than is currently possible with the solutions of the prior art.
- the total length allowed is lower if the cables L1 and L2 are conventional cables, it is then reduced by the lengths of the cables L1 and L2. If a surge arrester with an integrated disconnector is used (in this case, no fuse holder 120 or circuit-breaker 121, no cable 102, no cable 101), only the length L1 + L3 must be less than or equal to allowed length, for example 2 meters. This makes it possible to have more length of cable 103 and to facilitate its installation in cabinet 130.
- FIGS. 7A, 7B, 8A, 8B specify the cabinet layout of the flat cable 1 according to the invention, by examples of connection to ground.
- the flat cable 1 is cut to a length adjusted to the mounting constraints in the electrical cabinet 130, within the limit of 2 meters for example, and it is stripped about 1 cm at its ends to be connected.
- the central conductor 10 is connected to a circuit breaker or a fuse holder and at the other end, the central conductor is connected to ground.
- the central conductor connection can be made in different ways, including those described above.
- the screen 30 is connected to ground.
- the screen 30 is connected to ground while providing sufficient insulation between the central conductor 10 and the screen 30.
- the screen 30 is sandwiched by a recovery connector 60.
- This connector recovery 60 may be formed by two supports of semi-parallelepiped shape adapted to fit the cable 1 at its screen 30, matching the shape thereof. The two supports are brought together to generate a uniform electrical contact on the periphery of the sandwich screen 30, as shown in FIGS. 7A and 7B, the second insulating layer 40 having been previously removed at the contact surface. of the screen 30.
- the two supports are held tight by two screws 61, 62.
- the metal screen 30, located between the two insulation layers 20, 40, grounded at its two ends, advantageously greatly reduces the mutual inductance of the circuit and thus contributes to the increase of authorized cable.
- a ground wire 105 (FIGS. 8A and 8B), of section equal to 6 mm 2, for example, is connected by one of its ends to the recovery connector. 60 so as to shield the screen 30, the other end of the ground wire 105 being connected to a ground terminal 140.
- the ground wire 105 will be disposed and hooked along the flat cable 1 to its connection to the ground.
- the driver can be fixed in the cabinet or electrical panel via a "DIN" rail with fasteners, for example every 50 cm.
- the fasteners will take the cable sandwich, they will be mounted on standard bases for rail 160, for example for a DIN rail.
- the ground wire 105 may be connected to the ground via the rail.
- FIGS. 9A and 9B schematize devices implemented to measure the intrinsic and mutual inductance of the conducting cable according to the invention.
- the conductors used in protection against lightning and overvoltages represent an inductance value of ⁇ ⁇ / m.
- the usual wiring rules in electrical panels therefore give a value such that the total is approximated to 1 ⁇ / m.
- the principle of the measurement of the self-inductance is to inject a wave current pulse i of 8/20 ⁇ of known amplitude, and to measure the voltage Up appearing across the tested conductor cable 1, whose the length is also known, for example one meter.
- This waveform current of 8/20 ⁇ corresponds to the qualification of a type 2 surge arrester, that is to say a surge arrester for the main protection of all low voltage electrical installations. This corresponds to a lightning protection particularly targeted by the invention.
- the voltage Up is measured according to the principle of the Kelvin method called "4-wire", which makes it possible to overcome the resistance of the conductors and external connection elements to the measured element.
- FIG. 9A gives an example of a device 200 for carrying out such a measurement, with a pulse generator 201, an oscilloscope 202 for measuring the voltage Up at the terminals of the cable 1 and a toroid 203 for measuring the current i.
- the conductor can be modeled as consisting essentially of an inductance L and a series resistance R (negligible).
- the clean inductance value thus measured for a flat cable 1 according to the invention, of width 20 mm for a thickness of 0.9 mm (equivalent effective section greater than 1 6 mm 2 ) is 0.03 ⁇ .
- the principle of measuring the mutual inductance cumulated with the own inductance is to inject a current pulse of 8/20 ⁇ whose amplitude is known, between an end 1 a of the conductor cable 1 to be measured and the plane of mass 140.
- the other end 1b of the conductor cable 1 is in short circuit with the ground plane.
- the voltage Up appearing between the cable, whose length is also known, for example one meter, and the ground plane is measured by placing the cable 1 according to the invention parallel to a ground plane 140 (here, a simulating metal sheet an electrical cabinet wall 130).
- the conductor may be in contact or more or less close to the ground plane 140 according to whether we want to simulate a measurement "conductive flanged against a cabinet wall" or "DIN rail-mounted conductor". This varies the surface of the loop and thus the inductance of the assembly.
- FIG. 9B gives an example of device 300 for carrying out such a measurement, with a pulse generator 301, an oscilloscope 302 for measuring the voltage Up at the terminals of the cable 1, a torus 303 for measuring current i, a ground plane 140 to which is connected the end 1b of the cable 1.
- the value of the mutual inductance cumulated with the self-inductance thus measured for a copper flat cable 1 according to the invention, of width 20 mm for a thickness of 0.9 mm (equivalent effective section greater than 1 6 mm 2 ) is :
- the invention makes it possible to increase the allowable lengths of wiring to at least 2 meters, or even more depending on how the cable is installed in the electrical panel. This results in a gain in labor (study and implementation), and a sharp reduction in the difficulties of wiring and integration of surge arresters in electrical panels.
- such a cable can be manufactured by known and existing industrial processes.
- a description of the process that can be envisaged is described below.
- the central conductive portion or central core is made in the form of a steel braid, generally made of copper:
- a plurality of strands constituting the braided conductor are made using fine wires of tin-plated copper (0.15 mm for example), the number of strands constituting the braided conductor being determined according to the section of the flat conductor wanted; the strands are placed on rotary conveyors, each conveyor rotates alternately around the other conveyors, which braids the strands between them, the number of conveyors being adjusted according to the number of strands to be braided;
- the braid thus obtained is then covered with a first insulating layer, by sheath extrusion, conventionally using polyvinyl chloride (PVC).
- PVC polyvinyl chloride
- a screen On the first insulating layer, a screen, more precisely a thin sheet of copper of the order of mm is wrapped around the first insulating sheath.
- the cable thus obtained is finally covered with a second insulating layer, by sheathing extrusion, conventionally using polyvinyl chloride (PVC).
- PVC polyvinyl chloride
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1753681A FR3065834B1 (fr) | 2017-04-27 | 2017-04-27 | Cable electrique pour cablage de parafoudre |
| PCT/EP2018/060460 WO2018197481A1 (fr) | 2017-04-27 | 2018-04-24 | Cable electrique pour cablage de parafoudre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3616220A1 true EP3616220A1 (fr) | 2020-03-04 |
| EP3616220B1 EP3616220B1 (fr) | 2021-05-05 |
Family
ID=59297054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18719571.4A Active EP3616220B1 (fr) | 2017-04-27 | 2018-04-24 | Cable electrique pour cablage de parafoudre |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3616220B1 (fr) |
| FR (1) | FR3065834B1 (fr) |
| WO (1) | WO2018197481A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3620595A1 (de) * | 1985-07-26 | 1987-02-05 | Mitec Moderne Ind Gmbh | Kabel |
| FR2657993B1 (fr) * | 1990-02-05 | 1995-01-20 | Cortaillod Cables | Cable electrique plat pour basse tension pose sous un revetement de sol. |
| US5384429A (en) * | 1993-06-24 | 1995-01-24 | Emerson Electric Co. | Low impedance surge protective device cables for power line usage |
| CN204348387U (zh) * | 2014-12-29 | 2015-05-20 | 浙江万马集团特种电子电缆有限公司 | 防雷涌迷你同轴复合缆 |
-
2017
- 2017-04-27 FR FR1753681A patent/FR3065834B1/fr not_active Expired - Fee Related
-
2018
- 2018-04-24 EP EP18719571.4A patent/EP3616220B1/fr active Active
- 2018-04-24 WO PCT/EP2018/060460 patent/WO2018197481A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018197481A1 (fr) | 2018-11-01 |
| EP3616220B1 (fr) | 2021-05-05 |
| FR3065834A1 (fr) | 2018-11-02 |
| FR3065834B1 (fr) | 2019-07-05 |
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