Device and method for branching cable

 

(57) Abstract:

The invention finds its application in fiber-optic networks. One or more of the major conductors of the main cable is cut and free from the main cable. Cut and released the main spliced conductors with conductors of a branch coming out of the end of the cable branches. Cut the main cable is placed on the rail. Cut cable branch containing the end, also placed on the rail. Reliever tension cable branch is attached to the rail by means of the fastening device. Protective casing surrounds the rail, cut the main cable, cut cable branches, spliced conductors and the mounting device. The technical result - the simplification of the structure and relief operation in the field. 2 C. and 12 C.p. f-crystals, 4 Il.

The invention relates to the field of branching cable and methods of making the cable branches.

In some technical applications there is a need to fork the main conductors of the main cable to the conductors of the branch cable branch.

It finds its application in fiber-optic networks. Mragowo the Cove fiber-optic network), containing chain for about 30 subscribers. BVS transform optically transmitted information from a multi-fiber cable in electrically transmitted (copper cable) information that you provide to subscribers. Thus, for each BVS should be created branching cable. In such a branching fiber optic cable (main conductor) branches of the multi-fiber cable to the other optical fibers of the branch conductors) in a small optical cable (cable connections), and then small optical cable fits BVS. One multi-fiber cable may be connected to a maximum of about 16 BVS. In order to avoid the increased cost of excavation for laying of cables, it is desirable to be able to determine where should be placed the cable branches. Therefore, it is preferable to have a reliable and simple form of branching of the cable, which can also be carried out in the field. On the other hand, you can pre-fabricate the cable branches on the plant, but, of course, difficult to know in advance where to place the branching cable, and not known in advance the exact length of the main cable, conditions, earthwork etc.

When creating razvetvlennoy main cable, so they can be joined with the conductors of the branch belonging to the cable branches. The conductors of the branch, subject to merging with the main conductors, in such a situation are usually placed so that they were at some distance from one end of the cable branches, giving more space for the implementation of the splice. The cable branches also usually contain various protective devices against humidity, mechanical stress, etc.

The patent literature contains several examples of the branching cable.

In the description of the patent EP, A1, 0584600 shows an example of a branching cable. On the main cable are two of the site, removed the shell. The first of these areas, which removed the shell, main conductors, subject to branch pererezaetsya and then removed to another site, where we removed the shell and, thus, are released from the main cable. These are the main spliced conductors with conductors of the branch, leaving the ends, in this case two conductors of the branch. Place seam is placed in a fixture for mechanical protection. The ends of the cable sheath on both sides of the other, which I also mechanically attached to the beam. The second section, which was removed the shell, beam, spliced conductors and the ends of the branches are enclosed in the casing. The ends on both sides of the first section, which was removed the shell, attached to a beam, and this part which has been removed, the shell is the shell.

This branching of the cable has drawbacks. Requires a double set of beams and casings, and means double work. The casing must be specially made, and each cover is only suitable for cables of a certain size.

In the description of the patent DE, A1, 363 shows an example of a branching cable. On the main cable highlights the area where the sheath is removed. The site, which was removed the shell, in the stretched state is set in the casing. Main conductors pererezaetsya on the site, which was removed the shell, and thus released from the main cable. Cut the main spliced conductors with conductors of a branch coming out of the end of the cable branches. The end of the cable branches attached to the casing. Place seam is placed in a mechanical protective device.

This branching of the cable has disadvantages. If in the process brasiunaite enough, that requires a large enclosure. The casing must be specially made, and it is suitable for cables of a certain size.

In the description of the patent DE, A1, 363 gives another example of the branching cable. On the main cable is allocated a plot to remove the shell, and at some distance from the site, which was removed the sheath, the cable jacket is made of belt-like section. Thus, between the area where we removed the shell, and a support section formed by the movable section of the shell. If the movable section of the shell to move in the direction of the plot on which the shell has been removed, the place zoster incision is formed a clearance. In the lumen of the main conductors, subject to the branch cut. Then the movable area of the membrane moves back, and the main conductors, subject to the branch, pulled out at the site, which was removed the shell, so that the main conductors, subject to branch released from the main cable. Cut the main spliced conductors with conductors of a branch coming out of the end of the cable branches. Place seam is placed in a mechanical protective device. The area where the cover was removed the second branching cable has drawbacks. Requires two casing, and therefore, double the work. You specifically need to make housings, each of which is appropriate only to the cable of a certain size.

The aim of the present invention is to solve the following tasks: first, to create a branching cable, in which a number of the major conductors of the main cable branches off to some number of conductors of the branch cable branch; secondly, to ensure that the branching cable was made as simple as possible and required less complex or specially fabricated items; and third, to ensure that the branching cable can easily be implemented in the field.

The above-mentioned task, in General, be solved in the following way. Cut the main cable is mounted on the rail, which is designed to mechanically support and provide some mechanical protection of the cable branches. The ends of a number of conductors branches, which are arranged so that they were at some distance from the end of the cable branches, spliced with a number of key wires that were cut and removed from glavnoe cable branch contains the element, debilitating tension, the present invention involves securing element, decreasing the tension on the rail by means of the fastening device, such as a locking screw. According to the invention it is also assumed that the mounting device is capable of moving along the rail, which allows you to alter the seam between the main conductors and the conductors of the branch, if the fusion for some reason is broken, because in this case the cable branches can be pushed enough to provide sufficient freedom spliced the wires to remove the old seam and create new ones. Finally, around Reiki, spliced conductors and sections of the main cable and cable branches, which are set forth in the rod, install tight-fitting protective shell.

More specifically, the aforesaid problems are solved as follows. Rake in this case is an elongated metal plate bent so that the upper side of the plate are formed two sides. Along the part of the cable, the cable sheath is removed, and the cable jacket is made of belt-like section. Thus, a movable section of the cable sheath, which can be moved in the. the ri offset of the rolling section of the cable sheath towards the area where we removed the shell, in the place where it was done tinea incision, there is a small clearance. In the lumen of the main conductors, subject to the branch, are identified and pererezaetsya. Cut the main conductors are pulled out at the site, which was removed the shell, after which the movable section of the cable sheath is moved back to the place where it was done tinea incision. Thus, the main conductors are released from the main cable and spliced with the conductors of the branch cable branch. The plot of the main cable to be fixed on the rail, is placed so that it closely fits to the plate and one of the boards. The main cable is attached to the rail by means of fixing means, such as a lockable metal strips. Section of the cable branches, subject to mount on the rail, is placed so that it closely fits to the plate and the other side. Cable branch is attached to the rail using the mounting means similar to the main cable. According to the invention is proposed to install the containment following a design. Around the rails, cable sections, mounted on nesrea the surface of the packaging was smooth. Then around the wound packing tape sticky side out. Around wrapped in packing tape is wound waterproof fabric. This fabric may represent, for example, simoultaniously rubberized fabric. Around tissue wound adhesive tape - this time the sticky side inwards.

In addition to solving the above problems, the present invention has the following advantages. First, it provides the branching cable, which can be done at relatively low cost. Secondly, when a fluctuation of the size of branching cables can be used for identical parts.

In more detail, the invention will be described below on the example of preferred embodiments and with reference to the accompanying drawings.

Fig. 1A is a perspective view of a branching cable in accordance with the invention.

Fig. 1b is a perspective view of one part of the branching cable in accordance with the invention.

Fig. 2A is a cross-section of the cable branches in accordance with the invention.

Fig. 2b is a cross the s section of the cable branches in accordance with the invention.

Fig. 2d is a cross-section of the cable branches in accordance with the invention.

Fig. 3 is a cross-section of the cable branches in accordance with the invention.

Fig. 4 is a flowchart of a method of manufacturing the cable branches in accordance with the invention.

In Fig. 1A shows how according to the invention looks possible branching cable before around the branching cable will be installed protective cover.

On the main cable 1 highlights section 3 to remove the shell, and at some distance from the site where the removed sheath, the sheath also is made of belt-like section 5. Thus, section 7 of the sheath of the cable is enclosed in section 3, where the sheath is removed, and a support slit 5 may be moved along the cable 1. If you move the movable section 7 in the direction of the section 3, which removed the shell, in the place where done by the herpes section 5, there is formed a clearance. In this clearance are identified and pererezaetsya main conductors 41-44, subject to the branch. After the main conductors cut, the movable section 7 is shifted back in resulte removed the shell, and thus, the ends of the main conductors that are subject to merger with branch conductors 53 - 56 in the cable branch 2, are released from the main cable.

According Fig. 1A cut the main cable is placed on the rail 19. This cut the main cable goes actually along Reiki and contains as plot 3, which removed the shell and encircling incision 5. Cut the main cable is attached to the rail, a number of fasteners 9-17, which according to a variant implementation, shown in Fig 1A, are lockable metal strip 9-17. According Fig. 1A cut the main cable secured nine metal ribbons 9-17, but to use such a number, of course, not necessarily. However, one or more metal strips, it is useful to put at each end of the rail. It would also be useful to place one or more metal strips on the movable section of the cable sheath.

The rail 19, shown in Fig. 1b, according to the depicted version of the implementation is made in the form of an elongated rectangular plate 21. The plate is curved so that the upper surface of the plate are formed the first Board 23 and the second Board 25, and the slot 27-38 and 115.

Cut the main conductors 41-44 of Fig. 1A spliced conductors branch 53-56, which rise from the end 63 of the cable branch 2. According to a variant implementation, shown in Fig. 1A, the conductors 41-44 and 53-56 are optical fibers. Splicing of optical fibers is usually by means of fusion, which method is well known to specialists, and fused joints usually involve mechanical protective devices 47 and 49, the so-called sleeves protect the seam. These sleeves protect the bridges are commercially available, and makes them known company Raychem Corporation. According Fig. 1A fused joints are placed in two sleeves protect the bridges 47 and 49, and the sleeves protect the bridges are attached to the rail by means of the elastic clamp 51.

According Fig. 1A piece of cable branch 2 rests against the plate 21 and the other side 25. This piece of cable branch contains the end 63 of the cable branches and secured to the rail using the mounting means 65 and 66, which in the depicted embodiment, are lockable metal strip 65 and 66.

The conductors of the branch 53-56 contained in the cable branches, which are spliced with the handling of the tion from the end of the cable branches. This distance is selected in such a way as to obtain fibers of such length that it's easy to work with fusion. Cable junction 2, is shown in Fig. 1A, contains a Central means of tension relieving 61. Means of tension relieving 61 is not clipped on the end 63 of the cable branches, but comes at a certain distance from the end of the cable branches. This protruding part of the tension relieving 61 is attached to the rail 19 by means of the fastening device 59, which according to Fig. 1A is a locking screw mechanism 59.

In Fig. 2(a-d) shows four cross-sections of the branching cable shown in Fig. 1A.

Fig. 2A depicts a cross-section indicated in Fig. 1A with the letter A. Here you can see the cross-section of the main cable 1. Main cable 1 according depicted here variant implementation is a cable with lisovanim core. Inside the shell 69 of the cable core 71, typically made of plastic material, in which in the longitudinal direction of the cable 1 done six grooves 73. In each of the grooves 73 there are two so-called ribs 77 and 75, each of which, in turn , what button it was possible to identify individual fibers. Main cable 1 shown in the figure, also contains a centrally located tension reliever 79.

In Fig. 2A also depicted in detail, as is one of the metal strips 10 to be fastened to the main cable 1 to the rail 19. Metal tape 10, first of all passes through the bottom plate 21, and then around the first side 23 and a part of the circumference of the cable, in order, eventually, to return through one of the slots 28 on the lower side, where the metal strip 10 is locked by a locking mechanism 81. Thus, the metal strip 10 forms a loop, covering the main cable 1, and holds it close to the rail 19. Lockable metal tape commercially available, for example Panduit MLT 2S/CP etc.

Fig. 2b depicts a cross-section indicated in Fig. 1a by the letter C. the figure shows how two sleeves protect the bridges 47 and 49 are attached to the rail 19 by means of the elastic clamp 51, which according to this figure represents a curved metal strip 51. The metal strip 51 is mounted in one of the slots 38 and passes first through the bottom plate 21, and then around the second side 25, so that, at the end of cocoamine to the top side of the plate. Where the metal plate 51 adjacent to the sleeves 47 and 49 protection of bridges, it has a slightly curved shape, which allows it to tightly grab the sleeves protect the seam.

Fig. 2C depicts a cross-section indicated in Fig. 1A by the letter "d". Here you can see the cable branch 2 in cross section. Cable branch 2 according depicted here in a variant implementation also represents a cable with lisovanim core. Cable junction 2, is shown in Fig. 2C, contains within its cable plate 91 core 93 with three grooves 95. In each groove laid four optical fibers. Cable branch 2 is attached to the plate 21 and the second Board 25 and is attached to the rail 19 as well as the main cable 1, by means of two fasteners 65 and 66 in the form of a lockable metal strips 65 and 66. In the figure you can see the tension reliever 61, centrally located in the cable branch 2.

Fig. 2d depicts a cross-section indicated in Fig. 1A by the letter C. In this figure are depicted in detail, as a tension reliever 61 cable branch 2 is attached to the rail 19.

Here you can see that the tension reliever 61 is attached using a locking screw mean the end screw threaded, held at a certain distance along the screw 99. On the second 103 the end of the screw in the screw 99 done through hole 105 a circular cross-section. The hole 105 is located so that the hole passed through the screw 99 is almost perpendicular to the longitudinal direction of the screw. At the second end 103 of the screw 99 is also extended portion 107 so that the longitudinal direction of the extended part was almost perpendicular to the longitudinal direction of the screw. The extended portion 107 includes a groove 109 a semicircular cross-section, passing in the longitudinal direction of the extended part. The groove 109 has been done here so that half of the wall of the hole passing through the screw 99, which is located farther from the first end 101 of the screw forms a part of the continuation of the groove.

Washer 111 is a metal washer 111 with a round through hole, and the diameter of the hole exceeds the diameter of the screw 99.

Nut 113 is a hex nut, thread that matches the thread of the screw 99.

The locking screw mechanism 59 secures the tension reliever 61 cable branch 2 as follows. Washer 111 is closely adjacent to the upper side plate 21 that is a of Fig. 1A and 1b, since the closed second side 25, but are shown in Fig. 2d. Reliever of tension 61 in the cable branch 2 is passed through a hole 105 in the screw 99, and the screw is passed through the hole in the washer 111 and then through the hole 115 so that the first end 101 is released from the bottom plate 21. Nut screw 113 of the screw 99 on the underside of the plate 21. The screw 99 is set to the longitudinal direction of the extended portion 107 practically coincided with the longitudinal direction of the rail 19. Reliever of tension 61 is compressed between the groove 109 in the extended portion 107 and a washer 111, and when the nut reliever tension is fixed in the stop screw mechanism. The rail is clamped between the nut 113 and washer 111, and when the nut locking screw mechanism 59 is fixed on the rail 19, resulting reliever voltage 61, of course, also fixed on the rail. The slot 115, through which passes the screw 99, stretched in the longitudinal direction of the rail. Loosening the nut 113, it is possible to displace the locking screw mechanism 59 in the longitudinal direction of the rail 19. This gives the advantage that when the seam between the conductors 41-44 and 53-56 any way violated. Slightly bending the locking screw mechanism 59 and the cable otvetvitelnye seam and make new ones.

Still cable branch is depicted without the protective shell 117, which according to the invention is part of the branching cable. Of course, the branching cable according to the invention can be used without a protective shell, if for some reason it will not be necessary. In Fig. 3 shows a cross-section of the cable branches, which includes a protective sheath 117. The position of the cross-section approximately corresponds to the position of the cross-section indicated in Fig. 1A with the letter D.

Protective cover 117 contains packing 119 relatively stable form, which is installed so that it covered the rail 19, the length of the main cable, cut cable branches, spliced conductors 41-44 and 53-56, as well as the locking screw mechanism 59. Packing 119 has a cylindrical, prismatic or other elongated shape, and the longitudinal direction of this form coincides with the longitudinal direction of the rail 19. According to a variant implementation, shown in the figure, the shape is almost rectangular. Side of the package, facing outwards, presumably smooth. According to a variant implementation, shown in Fig. 3, packing 119 is made of folded such kind of commercially available for example type Nitto NTS, etc. Around the packing 119 is placed adhesive tape 121, and this adhesive tape is wound so that its adhesive side facing away from the packaging. Wrapped tape packing 119 obkladyvaetsja waterproof cloth 123. According to a variant implementation, shown in Fig. 3, the fabric is simoultaniously rubberized fabric 123. This rubberized fabric commercially available, for example type Nitto G057, etc. Around the tissue is placed adhesive tape 125, this time with adhesive side facing the fabric.

A method of manufacturing a branching cable according to the invention is simple and accurate. It will be described below with reference to Fig. 4.

The beginning of 129 method consists in the preparation of the main cable 1. On the main cable 1 highlights section 3, which removes the shell. The length of section 3, which removed the shell, respectively, from five to fifteen centimeters. In the shell 69 cable is herpes section 5, resulting in between site 3, which removed the shell, and a support slit 5 is formed movable part 7 of the shell. The distance between site 3, which removed the shell, and a support slit 5, respectively, from 50 to 90 centimeters. Evaluation done by the herpes section 5, is formed a clearance. In the lumen of the main conductors 41-44, subject to the branch, are identified and pererezaetsya. The movable part 7 of the shell is moved back, causing the lumen is closed, and the main conductors 41-44, subject to the branch, are identified and removed in the area where we removed the shell.

Continued 131 way is to install the main cable on the rail 19. Main cable 1 is located so that it closely fits to the plate 21 and the first Board 23, and is fixed with metal bands 9-17. Main cable 1 at this stage is placed so that the section 3, which removed the shell, and herpes section 5 arranged between the first and second end rails 19. Main cable 1 should preferably be set so that the main conductors 41-44, subject to the branch was located almost on the same level as the rail 19.

Continued 133 of the method consists in the preparation of the cable branch 2. Cable branch 2 is cut so as to form the end 63 of the cable branches. The conductors of the branch 53-56 be merging with the main conductors 41-44, subject to the branch, and centrally located tension reliever 61 office is at some distance from the end of the cable branches.

Continuation 135 of the method lies in the implementation of splicing. Conductors that are subject to splicing (these are the main conductors 41-44, subject to the branch, and the branch conductors 53-56, leaving the end of the cable branches), trimmed, if necessary, to the desired length. Conductors 41-44 and 53-56 spliced, and around joints installed fixtures mechanical protection 47 and 49 (sleeves protect the seam).

Continued 137 way is to install cable branches. Cut cable branch containing the end 63 of the cable branch established on the rail 19 so that it closely fits to the plate 21 and the second Board 25. This provides some tension spliced conductors 41-44 and 53-56. Cable branch 2 is attached to the rail 19 at least two metal strips 65 and 66, and the mechanical protective devices 47 and 49 are fixed on the rail using the elastic clamp 51. Reliever of tension 61 cable branch 2 is fixed on the rail by the locking screw mechanism 59.

The end 139 of the way is to install a protective shell. Around the rail 19, the cable sections, placed on the rail, spliced conductors 41-44 and 53-56 and the locking screw mechanism thuja form wherein the longitudinal direction of this form is practically coincides with the longitudinal direction of the rail. From the middle of the packing 119 to one end of the packing is wound adhesive tape 121. Then the adhesive tape 121 is wound to the other end and back to the middle, resulting in around packing 119 are formed of two layers of adhesive tape. In this procedure, the adhesive tape 121 is wound with adhesive side facing the packing 119, which makes possible the repeated access to the growths. Around the wrapped tape packing 119 in a single layer winded simoultaniously rubberized fabric 123. Finally, around tissue 123 in two layers wound adhesive tape 125 in the same way that in and around the packing 119, but this time the sticky side facing the fabric.

Subject to the foregoing, the main wires in the main cable branch off to one cable branches. Of course, it is possible to branch to the main conductors to the conductors of the branch belonging to several different cables branches. These cables branches can then be prepared and installed on the rail in the same way that a cable branch according to the options of implementation described above.

1. Device for rasvet what about the least one cable branches, in turn, contains at least one conductor of the branch and at least one fusion produced for splicing the end of the main wire, cut and released from the main cable, with the end of the conductor branches coming out of the end of the cable branches, characterized in that the device for branching cable includes an elongated and curved rigid rail, in turn, contains the first and second ends that cut the main cable is located on the rail, and a longitudinal direction cut the main cable coincides with the longitudinal direction of the rail, that section of the cable branches, including the end of the cable branches located on the rail, wherein the longitudinal direction of the section of cable branches practically coincides with the longitudinal direction of the rail, and that around the slats, cut the main cable section cable branches and spliced conductors installed protective cover.

2. The device under item 1, characterized in that the main cable includes a cable jacket, resulting in the main conductors are located inside the sheath of the cable, the main cable highlighted the area in which the sheath udaljenost, where the sheath is removed, and herpes cut and that cut the main conductors were cut in place zoster cut and drawn on the plot, where the shell has been removed.

3. The device according to p. 2, characterized in that the end of the cable branches directed to the site of the main cable, which removed the shell, the end of the cable branch is located between the section of the main cable, which removed the shell, and one given by the end of the two ends of the slats, and that herpes incision is located closer to the specified end of the rail than the area of the main cable, which removed the shell.

4. Device according to any one of paragraphs.2 and 3, characterized in that the protective cover package contains a stable form, designed to cover the slats, cut the main cable, cut cable branches and spliced conductors that the packaging is designed to accept almost cylindrical shape, and the longitudinal direction of the cylindrical shape coincides with the longitudinal direction of the rail, that the side of the package, facing outwards, is smooth around the wound packing adhesive tape, at least one layer, and the belt is placed adhesive side to cover the wound adhesive tape packaging and that surrounding tissue is at least one layer of adhesive tape, and this tape is installed with adhesive side facing the fabric.

5. The device according to p. 4, characterized in that the packaging is made of paper, with the smooth side of the package, facing outwards, made of an aluminum film deposited on a sheet of paper.

6. Device according to any one of paragraphs. 4 and 5, characterized in that the fabric is simoultaniously rubberized fabric.

7. Device according to any one of paragraphs.1 - 6, wherein the rail includes an elongated plate, which plate includes first and second flanges located on the sides of the plate, and the sides go in the longitudinal direction of the rail, which cut the main cable and cut the cable branches are located between the first side and the second side of the elongated plate that cut the main cable is installed close as to the extension plate and to the first Board, that the segment of the cable branches set against the elongated plate and the second Board.

8. The device according to p. 7, characterized in that segment of the main cable is mounted on the rail by means of a lockable tape that at least onlent set basically, at the other end of the rail.

9. Device according to any one of paragraphs.7 and 8, characterized in that the end of the cable branch established on the rail by at least two lockable tape.

10. Device according to any one of paragraphs.1 to 9, characterized in that the cable branch contains the item that weakens the tension that the device for branching cable includes a mounting mechanism for mounting to the rail parts, debilitating tension, and that protective shell is designed to cover the fastening mechanism.

11. The device according to p. 10, characterized in that the fastening mechanism can be moved in the longitudinal direction of the rail.

12. Device according to any one of paragraphs.1 - 11, characterized in that you have at least one mechanical protective device for protecting at least one of fusion, and that for attachment to the rail mechanical protective devices are provided, at least one elastic clip.

13. The method of branching of the cable, wherein the at least one main conductor is cut and free from the main cable, cut the main cable is placed on a stretched and bent rigid rail containing the first and involves the longitudinal direction of the rail, on the cable branches create the end of the cable branches, resulting in at least one conductor of the branch set speaker at a specified distance from the end of the cable branches to produce at least one splice to splice one of the main conductors, which was cut and released from the main cable, with one of the conductors of the branch coming out of the end of the cable branches, and cut cable branch containing the end of the cable branches, mounted on the rail in such a way as to make the longitudinal direction of the segment of cable branches almost coincides with the longitudinal direction of the rail.

14. The method according to p. 13, wherein install a protective shell to surround the rail, cut the main cable, cut cable branches and spliced conductors.

 

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SUBSTANCE: proposed terminator for copper-conductor communication cables designed for use in structured cable systems of categories 5 and 5e (up to 100 MHz and higher) has sleeve-shaped plastic body with round bottom on one end and cylindrical opening on opposite end, spliced conductors of cable ends being spliced which are potted in sealing compound within cable terminator; spliced insulated copper conductors are sealed with aid of type UY-2 connectors accommodating water-repelling filler; spliced conductors are disposed inside reticular screen made in the form of reticular copper sleeve reliably electrically connected to screens of cable ends being spliced in structured cable networks by winding sub-screen tinned copper wires of cable on sleeve and potting core splice of cable screened with reticular copper sleeve in terminator by cold-hardened polyurethane sealing compound VILAD-13.

EFFECT: enlarged functional capabilities of terminator.

1 cl, 6 dwg

Sealing device // 2401494

FIELD: electricity.

SUBSTANCE: concave body is suggested with open outer edge and several parts of perimetre adjacent with open body edge. Elastomeric film is attached to concave body perimetre parts along open concave body edge. Elastomeric film is suited for coupling one or more cables when the cables are located within the body to isolate them from environmental conditions.

EFFECT: invention improves device impermeability and provides possibility of reuse when cable or joint is restored.

10 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: product consists of protective core that has, at least, two end sections, many retaining cores and, at least, one cold shrink material that is kept in stretched condition above, at least, part of protective core and, at least, part of each retaining core. One end of each of retaining cores is mated with the corresponding end section of protective core. Retaining cores, protective core and cold shrink material as a whole annularly surround the equipment component so that cold shrink material when shrinking is set on part of equipment component after extracting the end of one of many retaining cores from the corresponding end section of protective core.

EFFECT: sealing or other kind of protection of equipment components such as cables or places of their connection.

15 cl, 31 dwg

FIELD: electricity.

SUBSTANCE: sealing device is intended for design of cables intended for underground usage. The pressure-limiting device for cables may contain, for example, the first cable including a conductor and an oil-containing layer encapsulating the conductor and the second cable having a conductor. At the connection spot the first cable conductor may be connected to that of the second cable. The connection spot and the conductors of the first and the second cables may be covered with a pressure-limiting hose. Installed at multiple spots o the pressure-limiting hose may be multiple ties for crimping the pressure-limiting hose round the connection spots and the first and he second cables sections. The pressure-limiting device may be implemented in the form of a hose on a single-strand cable or in the form of a breakout with individual hoses on a multi-strand cable such as a three-strand cable.

EFFECT: oil-containing cables sealing improvement.

20 cl, 12 dwg

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