专利摘要:
The invention relates to a method for providing a multi-core electrical main line with at least one multi-core electrical branch line, the method comprising: - removing a part of the main jacket from the electrical main line to partially expose the cores extending therein; - removing a portion of the vein sheath from two or more of the exposed cores of the electrical main line to expose the associated electrically conductive core cores; - removing part of the vein jackets from two or more wires of an electrical branch line to expose the cores of these wires; - directly attaching each of the exposed core cores of the power branch conduit to corresponding exposed core cores of the power main conduit; - the installation of protective material around the electricity main line and electricity branch line at the location of the connection of the electricity branch line to the electricity main line.
公开号:BE1026189B1
申请号:E20195259
申请日:2019-04-18
公开日:2020-04-06
发明作者:Bart Geers
申请人:Gebr Geers B V;
IPC主号:
专利说明:

ELECTRIC MAIN PIPE WITH BRANCH
The present invention relates to a method for providing a multi-core electrical main line with at least one multi-core electrical branch line, the electrical main line and the electrical branch line each comprising a plurality of cores having a common insulating conduit jacket arranged around the cores and each of the cores having at least one electrically conductive vein core with an insulating vein jacket arranged around it. The invention also relates to electrical cabling obtained according to this method, on a device comprising an electricity main line with at least one electricity branch line.
Agricultural crops can be grown outdoors, but it is also common practice to grow the crops under glass in so-called department stores or greenhouses (greenhouse horticulture). In such department stores or greenhouses, an artificial nutrient medium is used, where the light for cultivation is provided by outside light (i.e. sunlight) or artificial light. Assimilation lighting or assimilation lighting is the use of artificial light for plant growth. It usually supplements the sunlight, allowing the crops to assimilate longer. Especially in the winter months assimilation lighting gives a better crop quality. Examples of crops for which this lighting has advantages are vegetables and ornamental crops, such as roses and chrysanthemums.
The electrical cabling in such department stores, greenhouses and culture cells required to power the artificial lamps must be reliable, must be quick and easy to assemble, must withstand the humid indoor climate in the department stores and greenhouses for a long time and must take away as little daylight as possible. The existing cabling is often susceptible to failure, complex and labor-intensive to make and install, and takes up a relatively large amount of space, which reduces the amount of light entering the crop. Furthermore, the quality of the conventional electrical connection between the conduits of the branch is often low or low due to moisture entering. For example, there are conventional cable connections, for example Scotlock ™ clips for cable connections, in which metal parts are housed. The strongly varying indoor climates and temperatures in the growing environment can cause them to expand and shrink, resulting in a deterioration in the quality of this cable connection over time.
Document EP 1 744 403 A1 shows a way of fastening loose cores of two cable ends together using a connector part embedded in low viscosity silicone material. The silicone material should have a low viscosity because the gaps between the exposed cores of the cable ends must be filled with silicone material. If the viscosity is too high, the gaps are not filled properly. At least one waterproof layer must be applied around the silicone material. One of the objections
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BE2019 / 5259 of this way of fastening cable ends together is that when using low-viscosity silicone material, this material can drip away before the said waterproof layer has been applied. The document proposes to overcome this drawback by wrapping a foam plate impregnated with silicone material around the silicone material and then providing this foam plate with at least one waterproof layer.
However, this known method has many drawbacks. First of all, with a foam plate impregnated with low-viscosity silicone material, there is a great risk that the gaps must not be filled properly with silicone material. A further drawback is that the method of fastening is rather complex and prone to implementation errors: after all, the fastening requires a number of successive steps such as wrapping the connection and then surrounding the wrapped whole with waterproof layers. Furthermore, the cable ends of this document do not consist of different cores provided with a sheathing and the cores that are present are not individually insulated. This entails an increased risk of defects (short circuit and the like).
It is an object of the invention to provide a method and device in which the above drawbacks are at least partially overcome.
It is a further object of the invention to provide a device / cabling which allows a quick installation and which is very good and / or resistant to external influences (in particular moisture).
In a first aspect, at least one of these objectives is achieved at least in part in a method of the type mentioned in the opening paragraph, comprising:
- removing a portion of the conduit from the main electricity line to partially expose the cores extending therein;
- removing a portion of the vein sheath from two or more of the exposed cores of the electrical main line to expose the associated electrically conductive cores;
- removing a part of the vein jackets from two or more wires of an electricity branch pipe to expose the cores of these wires;
- directly attaching each of the exposed cores of the electrical branch conduit to corresponding exposed cores of the electrical main conduit;
- the installation of insulating protective material by locally forming a solid sleeve around the whole of the electricity main pipe and the electricity branch pipe at the location of the connection of the electricity branch pipe to the electricity main pipe, the installation comprising placing it around the whole of the electricity branch pipe and the electricity main pipe and subsequently cure of
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BE2019 / 5259 an amount of plasticized plastic material that surrounds each of the exposed cores of the power main line and each of the exposed cores of the power branch line completely by plastic material.
By applying the conductive cores of the branch pipe directly to those of the main pipes, the risk of malfunctions is reduced and the quality of the electrical connections between the wires of the main pipe and those of the branch pipe can be ensured.
By making the sleeve solid, there is a risk of the mutually attached cores of both lines shifting and thus the risk that exposed parts of the cores will accidentally touch each other (for example, when large tensile forces on the cores of one or both pipes are exerted and / or when the main pipe and branch pipe at the location of the branch is heavily bent, practically nil.
The solid sleeve is designed in such a way that each of the wires in the electricity main line and each of the wires in the electricity branch line are completely, and preferably also tightly, surrounded by the plastic material. In addition to the aforementioned advantage, this embodiment has the advantage that the risk of moisture penetrating into the interior of the sleeve and reaching the contact surfaces between the cores is very small. A further effect of the solid construction of the sleeve is that the chance of the mutually attached cores of both pipes shifting is small. This also has the advantage that the risks that exposed parts of the veins accidentally touch each other and / or that the risks of moisture penetration are small.
In certain embodiments of the method, each of the cores is surrounded by plastic material along the entire exposed length of the core core. Preferably, each of the cores is surrounded by plastic material over the entire exposed length of the vein core and over the end of the vein sheath and / or each of the veins is covered over the entire exposed length of the vein core and also over the end of the vein sheath surrounded by plastic material, the ends of the pipe jacket on both sides of the exposed core cores also being surrounded by plastic material.
In certain embodiments, the plastic material surrounds the exposed core cores and / or the ends of the core sheaths and / or the ends of the lead sheath completely and tightly.
The method may further comprise: arranging the pipes in a mold with liquid plastic material at the location of the connection, filling openings, holes and recesses and the like with the liquid plastic material which would exist between the wires of the electricity main line and electricity branch line and allowing the liquid plastic material to cure.
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The method may further comprise the provision of protective material in such a way that the wires of the electricity main line and those of the branch lines are shielded from the outside air in a substantially moisture-tight manner at the point of their mutual connection.
In an embodiment of the invention, the method comprises applying an amount of plasticized plastic material around the whole of electricity branch line and electricity main line at the location of the connection and allowing the plastic material to cure around the connection. If the plastic is a thermoplastic, it can be made plastic (in particular liquid) by exposure to heat. The liquid plastic is applied around the pipes, for example by arranging the pipes in a mold at the location of the branch. When the plastic is liquefied, it will very tightly extend all the way around the branching area of the pipes under pressure and any gaps, holes, recesses and the like that could exist between the cores of the main pipe and the branching pipe could be filled . Once the plastic material has hardened, for example - in the case of a thermoplastic plastic, by allowing the plastic to cool sufficiently, an almost entirely airtight envelope of the branch area will thus have taken place. The risk of moisture penetration and damage occurring inside the branch has become very small in practice.
In a particularly advantageous embodiment, fastening the cores directly to one another comprises fastening them together by ultrasonic welding.
According to a second aspect of the invention, electrical cabling, in particular cabling, of an illumination system provided in the manner described herein is provided.
According to a third aspect of the invention, a device comprising an electrical main line and at least one electricity branch line provided thereon, the electrical main line and the electrical branch line each comprising a plurality of cores having a common insulating conduit jacket arranged around the cores and each of the cores having at least one electrical conductive vein core with an insulating vein sheath disposed therein, with part of the conduit of the electrical main line removed to partially expose the cores extending therein, part of the vein of two or more of the exposed cores of the electrical main line for exposing the associated electrically conductive core cores, a portion of the core sheaths of two or more conductors of an electrical branch line is removed to expose the core cores of these cores, and wherein each k of the exposed core cores of the electrical branch line is directly attached to corresponding exposed core cores of the electrical main line, where an amount of insulating plastic plastic protective material surrounds the entirety of the electrical main line and
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BE2019 / 5259 electrical branch pipe has been fitted and cured at the location of the connection of the electrical branch pipe to the electrical main line, and the plastic material has been placed around the whole of the electrical branch pipe and electrical main line and then cured so that each of the exposed conductors of the electrical main line and each of the exposed conductors of the electrical branch line are completely surrounded by plastic material.
In one embodiment of the invention, veins are surrounded by plastic material over the entire exposed length of the core core. In a further embodiment of the invention, veins are surrounded by plastic material over the entire exposed length of the vein core and over the end of the vein sheath.
In one embodiment of the invention, cores are surrounded by plastic material over the entire exposed length of the core core as well as over the end of the core sheath, the ends of the lead sheath on both sides of the exposed core cores also being surrounded by plastic material.
In one embodiment of the invention, the plastic material completely and tightly surrounds the exposed core cores and / or the ends of the core sheaths and / or the ends of the lead sheath.
The applied protective material comprises a solid sleeve around the whole of electricity branch pipe and electricity main pipe. As mentioned above, the protective material can be fitted snugly around all cores. In an embodiment of the invention, the insulating protective material comprises a cured amount of plastic plastic material, the material being formed around the whole of electricity branch pipe and electricity main pipe at the location of the connection. In one embodiment of the invention, the plastic material extends over the exposed cores at the location of the removed portion of the conduit of the main electricity conduit as well as on either side thereof at both ends of the remaining portion of the conduit. In an embodiment of the invention, the core cores are welded together, preferably with an ultrasonic weld. Other ways of fixing, such as soldering, are also possible. These designs are less sensitive to varying temperature and humidity conditions and the connections often also offer higher tensile strength than the aforementioned conventional cable connections.
In an embodiment of the invention, the contact area between cores attached to each other is at least 0.6 mm 2 or at least 2 mm 2 , preferably at least 4 mm 2 . In one embodiment of the invention, the exposed vein sheaths are in longitudinally offset regions. In an embodiment of the invention, the regions are positioned so as not to overlap.
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According to a further aspect of the invention, a lighting system, in particular an illumination system for illuminating crop in a greenhouse, culture cell or department store, is included, the lighting system comprising one or more of the devices defined herein and the one or more electricity branch lines connected to one or more lighting fixtures (for example, of sodium lamps, such as Son-t lamps, or LED lamps).
Further advantages, features and details of the invention will be elucidated on the basis of the following description of some embodiments thereof. Reference is made in the description to the attached figures, in which:
Figure 1 shows a side view of a part of an electrical main line to be provided with an electrical branch line;
Figure 2 shows a side view of the electrical main line of figure 1, with part of the protective pipe jacket removed so that a number of cores are exposed;
Figure 3 is an enlarged view of the electrical main line at the location of the part of the protective pipe jacket removed;
- Figure 4 shows the enlarged view of Figure 3, with the protective veins of a number (i.e. three) wires taken away by a certain length in order to expose the conductive cores of these wires (copper);
Figure 5 is the enlarged view of Figure 4, wherein exposed ends of the wires of an electrical branch line are attached to corresponding exposed wires of the main electrical line;
Figure 6 shows a perspective view of the electric main line with branch pipe connected thereto, wherein a protective sleeve is formed around the connection of the branch line to the main line; and
Figure 7 is a view of an electrical branch conduit with the jacket of the ground wires removed at their ends.
In recent years, the use of prefab cabling has become fashionable in professional greenhouse horticulture. The electrical cabling is custom-made in advance (in an assembly hall) (ie a main line with branch pipes of sufficient length in the right places to the light fittings) and then transported to the department store, greenhouse or culture cell and installed there by the pipes on the place the correct plate in the profile or truss of the department store, the culture cell or the greenhouse. The use of junction boxes for connecting branch pipes to a main supply line is hereby avoided as much as possible, since such junction boxes take away the daylight required for the crop and are further less resistant to daylight (UV) and humid indoor climate: moisture can be given a cable box to enter and the inside of it will start to deteriorate, which can lead to malfunctions. Instead of junction boxes, the wires of the branch pipes are marked with
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BE2019 / 5259 are connected to the cores of the main pipe using connection clips and the main cable and branch cable are wrapped at the point of their mutual connection with single-sided adhesive tape or heat shrink tubing to reduce the sensitivity to moisture. Such a method of connecting a branch pipe to a main pipe has the advantage, inter alia, that it takes up very little space and therefore the loss of daylight incidence is negligibly small. In addition, the pipes can be installed quickly and easily in the profiles / trusses of the department store, greenhouse or culture cell, which entails a reduction in the required construction time of the department store or greenhouse or culture cell.
It has been found in practice, however, that sometimes moisture enters through the openings in the wrapping at the connection of the pipes, which in some cases can nevertheless lead to malfunctions. In order to further reduce the sensitivity to moisture, a method can be used in which one or more of the wires of a branch pipe are attached directly to one or more wires of a main pipe and in which a liquid material is placed at the location of the mutual connection of the wires. which cures liquid material and thus forms a tight-fitting and thus better moisture-retaining sleeve or enclosure around the main pipe and branch pipe.
Figures 1-3 show a multi-core electrical main line 1 which is intended for the electrical supply of a number of light fixtures, for example light fixtures in a department store, culture cell or greenhouse. The main electricity line 1 (hereinafter also referred to as the main line) comprises several wires 5 (for example two, three, four or more wires) with a common insulating pipe jacket 3 arranged around the wires. The wires 5 extend in the central core 2 of the main line 1. Each of the wires 5 comprises at least one electrically conductive wire core 6 with an insulating wire jacket 7 arranged around it.
Similarly, an electricity branch line 11 to be connected to the main line 1 (Figure 5, hereinafter also referred to as the branch line) may comprise several cores 15 (e.g. two, three, four or more cores) with a common insulating conduit 13 arranged around the cores . The cores 15 extend into the central core 12 of the branch conduit 11. Each of the cores 15 comprises at least one electrically conductive core core 16 with an insulating core sheath 17 disposed around it.
In the embodiment shown, the main pipe is shown thicker than the branch pipe. In many situations this will also be the case (for example in situations where a large number of branch pipes are arranged on a main pipe, for example 10 or more. In other embodiments, however, the branch pipes have the same diameter as the main pipe.
Referring to Figure 2, the method comprises removing a portion of the jacket 3 from the main line 1 to partially expose the veins 5 extending therein. The length 4 over which the veins 5 of the main line 1 are exposed must be sufficient to
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BE2019 / 5259 to provide space for coupling a number of cores of the branch line 11 to it, but is furthermore as small as possible in order to keep the protection of the main line 1 provided by the jacket 3 as intact as possible. The situation after the partial removal of the jacket 3 is shown in more detail in the enlargement of figure 3.
Referring to Figure 4, a portion of the core sheath 7 of two or more of the exposed cores 5 of the main power line 1 is then removed to expose the associated electrically conductive core cores 6. Figure 4 shows that each of the cores 5.5 5 has an exposed portion 8.8, 8. The exposed parts 8,8, 8 have a limited length 9, for example between 0.5 cm and 5 cm, preferably between 1 cm and 2 cm and are moreover in positions offset in longitudinal direction (L) so that the exposed parts 8 of the electrically conductive core cores 6 do not in principle touch each other and thus no short-circuit can occur. To ensure that the risk of mutual contact between the cores of the main pipe / branch pipe is small even when the pipes are bent, the minimum distance 20 (figure 4) in the longitudinal direction between the areas 8 is at least 5 mm, with preferably at least 10 mm or even more preferably at least 20 mm.
Alternatively or additionally, a number of insulating spacers (not shown) may be provided between adjacent portions 8 of exposed wires of the power main line 1. In some of these embodiments the parts 8.8 *, 8 2 are no longer staggered, which has the advantage that the total length of the connection (ie also the length of the sleeve to be described below) can be limited.
Referring to Figure 7, similarly described for the main line, two or more wires 15 of the branch line 11 to be connected are stripped of part of their jacket 17. In the embodiments illustrated in Figure 5 is in each case a part of the conductor casing 17 of three conductors 15,15 1, 15 2 at the location of the respective ends 19 thereof removed, so that the electrically conductive aderkem 16 of each of the cores 11 are exposed. The length over which the vein sheath 17 is removed can correspond to the aforementioned length 9 over which the vein sheaths 7 have been removed from the main line 1, but this length can also be larger or smaller. It is important that the exposed parts of the cores of the main pipe and the exposed parts of the cores of the branch pipe can make direct contact (directly in the sense that no intermediate material, clamps or clips and the like are required) and the these parts can be attached to each other in this condition.
In a particularly advantageous embodiment, the exposed parts of the cores of the main pipe and the exposed parts of the cores of the branch pipe are joined together by a welding operation, preferably an ultrasonic welding operation. Such a method of fastening provides a relatively large contact surface between the parts (typically with a length of at least 2 mm to 20 mm, for example at a length of 2 mm and a width of 1 mm or at a
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BE2019 / 5259 length of 2 mm and a width of 2 mm). A further advantage is that this fastening method ensures a firm and durable connection, which is also resistant to relatively large tensile forces exerted on the branch and main pipe. However, other fixing methods are also possible, such as splitting (splitting) or soldering the cores and / or pressing metal clips around the cores.
Finally, at the junction of branch pipe 11 to main pipe 1 (more particularly in the area overlapping at least the entire exposed portion (see Figure 2) of main pipe 1 and the corresponding exposed part of branch pipe 11 ) an amount of electrically insulating protective material 21 arranged around the electricity main line and electricity branch line. The plastic material is applied over the exposed cores at the removed portion of the conduit of the main electricity line and on either side thereof over both ends of the remaining portion of the conduit, as shown in Figure 6.
The protective material 21 is preferably applied by locally forming a solid sleeve of insulating material, in particular plastic material, around the whole of electricity branch pipe and electricity main pipe. The solid sleeve 22 is preferably constructed such that each of the wires in the electrical main line and each of the wires in the electrical branch line is completely surrounded by the plastic material. This prevents the (exposed or uncovered cores) from making contact with each other, so that the chance of malfunctions is zero. It is preferable to apply the insulating protective material as tightly as possible around the cores. In certain embodiments, the protective material makes contact with the cores in such a way that the protective material substantially completely surrounds them, so that a good protection against penetration of moisture from the outside can be realized.
In a particularly advantageous embodiment, the method comprises applying an amount of plasticized plastic material around the whole of electricity branch line and electricity main line at the location of the connection and allowing the plastic material to harden around the connection. The plastic can be a thermoplastic that is plasticized (in particular liquid) by exposure to heat and then applied in a (molded) form together with the relevant part of the branch pipe and main pipe, after which the whole is allowed to harden. This has resulted in each of the cores in the electrical main line and each of the cores in the electrical branch line being completely surrounded by the plastic material, thus avoiding penetration of moisture towards the exposed parts as much as possible.
The manner of providing a main pipe with a number of branches presented herein is particularly suitable for greenhouse horticulture in which it is important that branches
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BE2019 / 5259 take up as little space as possible (partly because of the effect on the incidence of light) and withstand long-term exposure to a damp environment. According to a further aspect of the invention, a lighting system, in particular an assimilation lighting system and / or an LED lighting system for illuminating plants in a greenhouse, department store or culture cell, in which the branch / main lines are connected, is provided with one or more light fittings for illuminating the crop.
The present invention is not limited to the embodiments described herein. The rights are determined by the following claims, within the scope of which numerous modifications and adaptations are conceivable.
权利要求:
Claims (28)
[1]
CONCLUSIONS
Method for providing a multi-core electrical main line (1) with at least one multi-core electrical branch line, the electrical main line (1) and the electrical branch line (11) each comprising a plurality of cores (5; 15) with a common insulating conduit jacket arranged around the cores and wherein each of the wires (5; 15) comprises at least one electrically conductive wire core with an insulating wire sheath disposed thereon, the method comprising:
- removing part of the conduit jacket (3) from the main electricity conduit (1) to partially expose the cores (5) extending therein;
- removing part of the vein sheath (7) from two or more of the exposed veins (5) from the electrical main line (1) to expose the associated electrically conductive vein cores (6);
- removing part of the cores (13) of two or more cores (15) from an electrical branch line (11) to expose the cores (6) of these cores (15);
- directly attaching each of the exposed core cores (16) of the electrical branch line (11) to corresponding exposed core cores (6) of the electrical main line (1);
- applying insulating protective material by locally forming a solid sleeve (22) around the entirety of the electricity main line (1) and electricity branch line (11) at the connection of the electricity branch line (11) to the electricity main line (1), the mounting includes mounting around the electrical branch line (11) and electrical main line (1) and then allowing a quantity of plasticized plastic material to cure that each of the exposed cores (5) of the electrical main line (1) and each of the exposed wires (15) of the electricity branch line (11) are completely surrounded by plastic material.
[2]
The method of claim 1, wherein each of the cores (5; 15) is surrounded by plastic material along the entire exposed length of the core core.
[3]
The method of claim 2, wherein each of the cores (5; 15) is surrounded by plastic material over the entire exposed length of the vein core and over the end of the vein sheath.
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[4]
A method according to claim 3, wherein each of the cores (5; 15) is surrounded by plastic material over the entire exposed length of the vein core as well as over the end of the vein sheath and wherein also the ends of the conduit sheath on either side of the exposed cores are surrounded by plastic material.
[5]
A method according to claim 2, 3 or 4, wherein the plastic material completely and tightly surrounds the exposed vein cores and / or the ends of the vein jackets and / or the ends of the conduit jacket.
[6]
Method according to one of the preceding claims, comprising arranging the pipes at the location of the connection in a mold of liquid plastic material, filling openings, holes and recesses and the like between the cores (5) with the liquid plastic material ) of the power main line (1) and power branch line (11) would exist and allow the liquid plastic material to cure.
[7]
Method according to one of the preceding claims, comprising the provision of protective material in such a way that the wires (5) of the electricity main line (1) and those of the branch line are shielded from the outside air substantially moisture-tight at their mutual connection.
[8]
Method according to one of the preceding claims, comprising applying the plastic material over the exposed cores at the location of the removed part of the pipe jacket of the electricity main line (1) and on both sides thereof over both ends of the remaining part of the pipe jacket .
[9]
A method according to any one of the preceding claims, wherein securing the cores comprises securing them together by ultrasonic welding.
[10]
Method according to any of the preceding claims, fastening the cores together with a contact surface of at least 0.6 mm 2 , preferably at least 2 mm 2 , even more preferably at least 4 mm 2 .
[11]
A method according to any preceding claim comprising exposing the vein sheaths in longitudinally offset regions.
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[12]
The method of claim 11, wherein the regions are positioned so as not to overlap.
[13]
A method according to any preceding claim comprising arranging insulating spacers between adjacent areas of exposed conductors 95) of the electrical main line (1).
[14]
Method according to any of the preceding claims, comprising arranging two or more electricity branch lines on an electricity main line (1), each electricity branch line being arranged at a different position in the longitudinal direction.
[15]
Electric cabling comprising a multi-core electrical main line (1) with a multi-core electrical branch line provided thereon according to the method of any one of the preceding claims.
[16]
16. Device comprising an electricity main line (1) and at least one provided electricity branch line, wherein the electricity main line (1) and the electricity branch line (11) each have several cores (5; 15) with a common insulating material arranged around the cores (5; 15) conduit sheath and wherein each of the cores (5; 15) comprises at least one electrically conductive core of the core with an insulating vein sheath disposed thereon, with part of the conduit of the electrical main line (1) removed to partially expose the extension therein cores (5), part of the vein sheath of two or more of the exposed cores of the main power line (1) is removed to expose the associated electrically conductive cores (6), part of the vein sheaths (16) of two or more more conductors (15) are removed from an electrical branch line (11) to expose the cores of these conductors, and each of the exposed core cores (16) of the electrical branch conduit (11) being directly attached to corresponding exposed core cores of the electrical main conduit (1), with an amount of insulating plastic plastic protective material surrounding the entirety of the electrical main conduit (1) and electrical branch conduit (11) has been installed and cured at the point of connection of the electricity branch line (11) to the electricity main line (1), and the plastic material has been placed around the whole of the electricity branch line (11) and the electricity main line (1) and then cured so that each of the exposed cores of the electrical main line (1) and each of the exposed cores of the electrical branch line (11) is completely surrounded by plastic material.
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[17]
The device of claim 16, wherein veins (5; 15) are surrounded by plastic material along the entire exposed length of the vein core (6; 16).
[18]
The device of claim 17, wherein veins are surrounded by plastic material over the entire exposed length of the vein core (6; 16) as well as over the end of the vein sheath.
[19]
The device of claim 18, wherein veins are surrounded by plastic material over the entire exposed length of the vein core as well as over the end of the vein jacket and wherein the ends of the conduit jacket on both sides of the exposed vein cores are surrounded by plastic material.
[20]
The device of any one of claims 16-19, wherein the plastic material completely and tightly surrounds the exposed core cores and / or the ends of the core sheaths and / or the ends of the lead sheath.
[21]
The device according to any of claims 16-20, wherein the plastic material extends over the exposed cores at the location of the removed portion of the conduit of the electrical main (1) and on either side thereof over both ends of the remaining portion of the pipe jacket.
[22]
The device of any one of claims 16-21, wherein the vein cores are attached to each other with an ultrasonic weld.
[23]
The device of any one of claims 16-22, wherein the contact area between cores attached to each other is at least 0.6 mm 2 , preferably at least 2 mm 2 or preferably at least 4 mm 2 .
[24]
The device of any one of claims 16-23, wherein the exposed vein sheaths are in longitudinally offset regions.
[25]
The device according to claim 24, wherein the areas are positioned so as not to overlap.
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[26]
An apparatus according to any one of claims 16-25, comprising insulating spacers disposed between adjacent areas of exposed conductors of the power main line (1).
5
[27]
An apparatus according to any one of claims 16-26, wherein two or more electricity branch lines are provided on the electricity main line (1) and each electricity branch line is arranged at a different position in the longitudinal direction.
[28]
28. Lighting system, in particular an assimilation lighting system for the
Illuminating crop in a greenhouse, culture cell or department store, comprising one or more devices according to any one of claims 16-27, wherein the one or more electricity branch lines are connected to one or more light fittings.
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同族专利:
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BE1026189A1|2019-10-30|
NL2020794B1|2019-10-28|
NL2020794B3|2021-08-04|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
US5168124A|1990-03-28|1992-12-01|Yazaki Corporation|Waterproof seal construction for wire harness|
EP1744403A1|2004-04-26|2007-01-17|Sumitomo Wiring Systems, Ltd.|Waterproof structure and waterproof method for wire connecting part|
US20150114711A1|2013-10-30|2015-04-30|Delphi Technologies, Inc.|Method for splicing shielded wire cables and cables made by same|
WO2017032762A1|2015-08-27|2017-03-02|Phoenix Contact Gmbh & Co.Kg|Electric cable subassembly|
法律状态:
2020-06-17| FG| Patent granted|Effective date: 20200406 |
优先权:
申请号 | 申请日 | 专利标题
NL2020794A|NL2020794B3|2018-04-19|2018-04-19|ELECTRICAL MAIN LINE WITH BRANCH|
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