Cold shrinkage item and method of using cold shrinkage item

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

 

Scope

The present patent application is filed as a continuation of an earlier application entitled "Product cold shrink and method of use of the product cold shrink" No. 11/609 181, filed December 11, 2006

The level of technology

The cold shrink products are products that are traditionally used for sealing or other types of protection equipment elements, such as cables or their connections. Some embodiments of the applied cold shrink products work so that prior to use of the material is held in the stretched or flattened condition for holding the core, for example, in the form of a removable tape. When using the device holding the core or the tape is unwound or removed so that it no longer holds the shrink material, resulting in shrinkage of the material is reduced in diameter and sits heavily on the external surface of the equipment component.

The invention

In the present invention proposes a device, including a protective core having at least two end of the site, retaining many of cores, and at least one element cold shrink, held in the stretched condition over at least part of the protective core and at least part of each of the hold is in their hearts. One end of each of the retaining cores associated with the respective end section of the protective core.

Brief description of drawings

Figure 1. Axonometric view of the product in accordance with the present invention prior to its installation.

Figure 2. Section of the object depicted in figure 1.

Figure 3. Axonometric view of the embodiment in accordance with the present invention after installation.

Figure 4. Section of the object, shown in figure 3, after it is installed.

Figure 5. Section of the object, shown in figure 3, in accordance with another embodiment of the present invention.

6. Section of the object, shown in figure 3, in accordance with another embodiment of the present invention.

7. Axonometric view of one of the incarnations of the product in accordance with the present invention prior to its installation.

Fig. Section of the object depicted in Fig.7.

Fig.9. Axonometric view of the product shown on Fig.7, after it is installed.

Figure 10. Section of the object depicted in Fig.9.

11. The cross-section of one of the embodiments in accordance with the present invention prior to its use.

Fig. Section of the object depicted on 11, after it is installed.

Fig. The cross-section of one of the embodiments in accordance with the present invention prior to its installation.

Figure 1. The cross-section of one of the embodiments in accordance with the present invention after installation.

Fig. The cross-section of one of the embodiments in accordance with the present invention after installation.

Fig. The cross-section of one of the embodiments in accordance with the present invention after it is used.

Fig. The cross-section of the product during its installation in accordance with an embodiment of the present invention, in which the sealant is used.

Fig. Section of the object depicted on Fig, after installation using sealant.

Fig. Axonometric view of one of the embodiments in accordance with the present invention prior to its installation.

Fig. Section of the object depicted in Fig.19.

Fig. Axonometric view of the product shown on Fig-20, after it is installed.

Fig. Section of the object depicted in Fig.21.

Fig. The cross-section of one of the incarnations of the product in accordance with the present invention during installation using a sealant.

Fig. Section of the object shown in Fig.23, after installation using sealant.

Figa. Side view of an Assembly that includes a protective core and two retaining core, each of which is ready to be inserted in one of the end sections of the protective core in accordance with the tvii with one of the embodiments of the present invention.

Figv. Side view of the Assembly depicted in figa, with retention of the fibre inserted into the corresponding sites of the protective core in accordance with one of the embodiments of the present invention.

Fig. The cross-section of the protective core and two holding centers, shown on figa.

Fig. The cross-section of another embodiment of the end portion of the protective core.

Figa and 28V. Side view and axonometric view of another embodiment of the end portion of the protective core.

Figa. Side view of another embodiment of the end portion of the protective core.

Figv. Side view of the end portion of the protective core, depicted in figa, in the stretched condition.

Figa. Axonometric view of an Assembly including a protective core and two retaining core, inserted in a protective core in accordance with one of the embodiments of the present invention.

Figv. Axonometric view of the product with the image of shrinkage of the material located on top of the Assembly depicted in figa.

Figs. Axonometric view of the shrinkage of the material depicted on FIGU, crouched over one of the end sections of the protective core in accordance with one of the embodiments of the present invention.

Fig.30D. Axonometric view of the shrinkage of the material depicted on FIGU, is causing the detainees over two opposite each other end sections of the protective core, and hardware component inserted into the protective core in accordance with one of the embodiments of the present invention.

Fig. Side view of the product incorporating a protective core and retaining many of cores in accordance with one more embodiments of the present invention.

Detailed description of the invention

In accordance with the present invention offers a device, including a defensive core that holds the core and the cold shrinkable material held in the stretched condition over holding the core to remove the retaining core.

Holding the core, the protective core and the cold shrinkable material - each of these elements represents an empty inside the body in the form of a tube. So, for example, retaining the core of the protective core and the cold shrinkable material can preferably be in the form of a tube of circular cross-section, but they may have the form of tubes of other cross-section. These alternative types of tubes may include, but are not limited to, a tube of triangular cross-section, of a tube of rectangular cross-section tube pentagonal cross-section, hexagonal tubes, octagonal tube and other forms, as will be clearly conversant with the art.

Figure 1-6 shows examples of embodiments of the product 20. The product 20 may, for example, include the substance of the protective core 30, having two leaf plot. The protective core 30 may be made from polymers, plastics, metals and other suitable materials capable of providing protection component 60 equipment. The protective core 30 is generally strong, tough and durable, resistant to external forces and factors and is able to protect the component 60 equipment located inside the protective core 30. For example, the component 60 equipment may have sharp edges or other signs of deformation (e.g. by crimping), and when it is placed in the protective core 30 of the protective core 30 must be strong enough sharp edges or other signs of strain component 60 equipment (for example, resulting from crimping) did not lead to damage or another type of fracture patterns of the cold shrinkable material 50 and/or the protective core 30. The protective core 30 is also able to resist external environmental factors and other mechanical influences, which it may be subjected. The protective core 30 may have characteristics that satisfy the requirements of the standard UL486D according to the results of test method D, known versed in this field of production as a test of the fall. The protective core 30 may also have other benefits in terms of protection of the equipment component 60, zvezdnye versed in this field of production and confirmed by other tests.

Embodiments of the present invention may include, for example, several retaining core 40. Each of the retaining core 40 can be located virtually next to each of the end sections of the protective core 30. For example, the protective core, shown in figure 1-6, has a first end section and second end section. The first holding core 40 can be located virtually adjacent to the first end section of the protective core 30. The second holding core 40 can be located virtually next to the second end section of the protective core 30. Each of the retaining core 40 is designed to hold material 50 cold shrink at least until, while retaining the core 40 is not removed from the material 50 cold shrink.

Retaining the core 40 may have different shapes and sizes for the convenience of working with it, and usually has some degree of plasticity and flexibility, that is, it should not be too hard to use. Embodiments of the retaining core 40 can be, for example, made of polymers, plastics, metals or other suitable materials capable of retaining material 50 cold shrink in the stretched condition.

Retaining the core 40 may include, for example, remove the retaining heart is guilty, for example cylindrical holding a heart, representing rolled into a spiral ribbon. Cylindrical remove retaining the core is made by forming a plastic spiral belt. The retaining element has a cylindrical shape may also be formed in a different way in which the external surface of the hollow cylinder is divided, perforated, cut in some way, or it made grooves. In some embodiments adjacent to each other of the spiral along the line of the incision can be temporarily fastened together. In any case, retaining the core must have sufficient mechanical strength to hold the material 50 cold shrink in the stretched condition. Remove retaining the core 40, which includes rolled into the form of a spiral tape, can be gradually unwound by separating each spiral from the next due to the presence in the core of the spiral grooves, and if you pull one of the ends of the tape. To facilitate the operation to retrieve or remove the retaining core 40 of material 50 cold shrink one of the end sections removed retaining the core 40 may include a tail 45, long enough for it to pull to extract or remove the retaining core 40. In some GP is ameneh products tail 45 may begin at one end of the retention of the core, to pass from inside remove retaining the core and extend to the outside from the other end of the cylindrical retaining the core.

Alternatively, retaining the core 40 may also include, for example, removed by nomination from the cold shrinkable material of the cylindrical holding element, which is one and indivisible element. The examples put forward by holding the core 40 can include a solid core made of a material such as plastic, which may also include an additional layer of such material, as Mylar or similar, allowing you retaining the core longitudinally move along the product when it is removed from the material 50 cold shrink.

Alternatively, retaining the core 40 may also be destructible, for example, by breaking and not removed from the material 50 cold shrink. In this case, when mounting the product operator destroys holding the core, breaking its individual parts, resulting in holding the core is reduced in diameter, as it will be clear versed in the art. Destructible core can be manufactured, for example, from materials such as mesh particular pattern embedded in the mastic, and when you squeeze the grid operator and its structure can destruct the change, in the result, this core is reduced in diameter.

Embodiments of the invention may include, for example, at least one element 50 of the cold shrinkable material held in the stretched condition over at least part of the protective core 30 and at least part of each of the retaining core 40. Thus, the outer surface of the protective core 30 and each of the holding core 40 in contact with the inner surface of the material 50 cold shrink.

Well-versed in the art it will be clear that the material 50 cold shrink can be any material of tubular form, which may be withheld in the stretched state holding element, and which decreases in diameter when removing the retaining element. For example, the material 50 cold shrink can be made of rubber, thermoplastic elastomer or other suitable material possessing certain properties of the cold shrinkage (e.g., an elongation of more than 100% and permanent shrinkage of less than 30%), as it will be clear versed in the art. Examples of suitable materials such as rubber include (but are not limited to: silicon rubber, EPDM (ethylene-propylene-diene copolymer), rubber type IR, SBR, CR, HR, NBR, gidrogenizirovannye NBR, acrylic rubber, ethylene-acre the new rubber, rubber materials with poroelasticity fillers and rubber materials with epichlorhydrine fillers. Examples of suitable thermoplastic elastomers include (not limited to): plastic, olefin thermoplastic elastomers, styrene thermoplastic elastomers, such as SBS (styrene-butadiene block copolymers) and SEBS (styrene-ethylene-butylene-styrene copolymers). To improve material properties 50 cold shrink it can be entered various additives, active agents and/or fillers, such as dyes, substances that slow the fire, lubricants, fillers, substances that facilitate the processing, softening agents, antistatic agents, substances that promote the formation of cross-links, in the right quantities. Embodiments of the cold shrinkable material 50 may have the desired characteristics in terms of tensile strength, heat resistance, resistance against exposure to fluids and gases, transparency and other factors, as will be clearly conversant with the art.

Material 50 cold shrink in an unstressed condition prior to the manufacture of the product should preferably have an internal diameter less than the external diameter of the protective core 30 and the retaining core 40 and less than or equal to the practical diameter of less is th least one of the component 60 equipment, on which you intend to install it as it will be clear versed in this art.

So, for example, as shown in figure 1-6, the material 50 cold shrink can be a single whole element surrounding the entire outer surface of the protective core 30 and a portion of the outer surface of each of the retaining core 40. The use of a single whole element cold shrink can be useful in those applications where the protective core 30 has a relatively small length.

As shown in Fig.7-10, the material 50 cold shrink can be a number of separate elements cold shrink. In this embodiment each of the elements cold shrink can encircle the tail part of the protective core 30 and the plot next to him holding the core 40. In this case, although the ends of the protective core 30 and covered by (surrounded by) the corresponding elements of the cold shrink, the Central portion of the protective core 30 can be free from material 50 cold shrink. This embodiment (shown in Fig.7-10) may be particularly suitable in those applications, when the protective core 30 is sufficiently long.

It is also possible embodiment, in which at least on one side of the protective core material 50 cold shrink can take the form of widemouth tubes, as, for example, on 11-12.

In addition, in some embodiments, the material 50 cold shrink can be pulled to the site holding the core 40, thereby providing more space for expansion of the material 50 cold shrink when the operation for setting it up. Examples of embodiments of the cold shrinkable material, which can be pulled to the site holding the core, included in the U.S. patent 6911596.

In one type of embodiments of the invention depicted in Fig-16, the protective core may be corrugated, which gives the product a number of additional benefits associated with the properties of corrugated materials. Protective core can also be flexible in varying degrees, which ensures its use in various applications, such as, for example, the closure of the branches in the secondary distribution circuits, connections, busbars, connectors cables with tyres, end sections of the cables, connections, bases, and other applications with the unique geometry of the component, equipment, enclosed in the product.

Retaining the core 40, the protective core 30 and the material 50 cold shrink can collectively represent one detail - article 20 of the tubular form is imposed on the component 60 equipment by threading the component through the product. After holding Serdtsev the s 40 extracted or removed from the cold shrinkable material, having a tubular shape, the protective core 30 and the material 50 cold shrink can together to form one piece, providing protection and/or sealing component 60 of the equipment enclosed in the tubular part 20.

During installation of the product retaining the core 40, the protective core 30 and the material 50 cold shrink can be collectively mounted on the component 60 equipment so that after the extraction or removal of the retaining core 40 of material 50 cold shrink last sits heavily on the plot component 60 equipment.

In particular, as shown, for example, figures 1-4, the component 60 can be threaded through the tubular portion of the material 50 cold shrink holding the core 40 and the protective core 30. One of the holding core 40 on one side of the protective core 30 can be removed from the material 50 cold shrink, resulting in material 50 cold shrink is reduced in size and is fixed on the component 60 of electrical equipment, as clearly versed in the art. The second retaining the core on the other side of the protective core 30 can also be removed from the material 50 cold shrink, resulting in material 50 cold shrink is reduced in size and is fixed on the component 0 of electrical equipment, as is clear versed in the art. After material 50 cold shrink removed all restraint core 40, a non-removable protective core 30 remains within the material 50 cold shrink. The process of removal of material 50 cold shrink is all holding hearts 40, yet they will not be deleted and each item of material 50 cold shrink will not decrease in size and will not sit tightly on the corresponding portion of the component 60 of electrical equipment. Each of the retaining core 40 may be, for example, is removed so that none of restraint hearts will not pass through any portion of the protective core 30.

After removal or extraction of retaining the core 40 from the cold shrinkable material of the protective core 30 can essentially be left in the cold shrinkable material, firmly perched on the component 60 of the equipment, thus forming a non-removable (non-remote) the protective core 30. Due to this, a non-removable (non-remote) protective core 30 can remain in contact with at least part of the piece cold shrink tubular form, protecting component part 60 of electrical equipment enclosed in the product 20.

Examples of components 60 of equipment that can be enclosed in the tubular sections of the ed is Leah 20, include (but are not limited to):

cables and wires of electrical, optical fiber telecommunications systems, cables, pipes, branched cables, barrier boots, splicing wires, pipes, branching into secondary distribution circuits, bus connections, cable connections with tires, connection sockets, three-core cables, coaxial cables, coaxial connectors, nuts, bolts, components, irrigation systems, connection type pin-Bush and other equipment 60, which may require sealing with cold shrink products and/or protection through protective core.

In some applications, after removal of the first holding core 40 and to remove the last restraint core 40 free space between the inner diameter of the protective core 30 and component equipment 60, the operator can fill the sealant 70. Filling sealant 70 is not a mandatory feature of the invention, but rather an additional feature that can be used if necessary. As shown in the example embodiments depicted in Fig, 18, before removing the last restraint core 40 between retaining a core 40 and component equipment 60 may have enough space for the application of the ger is etika 70, that will fill the space between the protective core 30 and component equipment 60. Preferably, under the action of gravitational forces sealant 70 filled all the empty seats and replaced them, the air came out of the inner part of the product 20 through the open area between the last retaining the core 40 and the component 60 equipment. When the space between the protective core 30 and the component 60 is almost filled with a sealant 70, the latter retaining the core 40 can be removed from the material 50 cold shrink, resulting in material 50 cold shrink is reduced in size and secured around the component 60 equipment and sealant 70 is concluded within the device 20.

Embodiments presented on Fig, 18 and requires the use of a sealant, may be different. So, for example, as a sealant 70 may be used hardened structures or systems or greases or gels that do not require hardening.

Examples of stiffening structures or stiffening systems may include thermosetting sealants, sealers, curing under the action of radiation, water, and other types of curable sealants. Thermosetting sealants may include compositions based on resins such as epoxy, polyurethane, polyester, acrylate or proci the kinds of resins, with sufficient hardness after curing. Other types of curable compositions can include various types of cured gels which are in a liquid state when applied, and curing takes place some time after input of the gel in the inner part of the product. Autoridades compounds in the form of gels solidification transition from liquid to semi-solid retinopathies, and due to their use by the user can be made hydrophobic seal. In addition, some curable compositions can provide protection from moisture, which may provide additional advantages in some applications.

Alternatively, the sealant 70 may also be a gel composition that does not require hardening. For example, the sealant 70 may be pre-manufactured hydrophobic gel sealer on the basis of soft rubber oil filler. Examples of hydrophobic gel-based gaskets soft rubber oil filler may include at least a polymer and an oil component, i.e. it can be a polymeric hydrophobic gel seals, rubber-based oil filler. Examples of suitable polymers include oil-filled silicones, polyurethanes, polyesters, polyepoxide polymers, polyacrylates, polyolefin, polysiloxanes, polybutadienes (including polyisoprene) and hydrogensource polybutadienes and polyisoprenes and copolymers, including block copolymers and copolymers with branches.

As another alternative, the sealant 70 may be a composition based greases that do not require hardening. Lubricating compositions may, for example, include a thickening agent that interacts with at least part of the oil components. Lubricating compositions can have properties such as low temperature shift and stronger adhesion than cohesion. The thickener may, for example, to enable the composition of organic polymers. The composition of the organic polymers may include polymers, such as polyurethanes, polyesters, polyepoxide polymers, polyacrylates, polyolefins, polysiloxanes, polybutadienes (including polyisoprene) and hydrogensource polybutadienes and polyisoprenes, as well as block copolymers. Block copolymers can consist of blocks of such polymers, as, for example, the above-listed polymers and poly(monoalkanolamines), including polystyrene. These block copolymers may, in particular, to include the polymers of the composition of a styrene ethylene-butylene (SEB), styrene, ethylene-propylene (SEP), styrene ethylene-butylene; styrene (SEBS); styrene, ethylene-propylene, styrene (SEPS), polymers of the type styrene-rubber; Dubl cnie polymers, polymers with branches, block copolymers, star-shaped configuration, as well as block copolymers with inhomogeneous composition of the blocks. Alternatively, the thickener may, for example, include inorganic ash composition. Inorganic ash composition may, for example, include alumina, silica or clay. As another alternative, the thickener may, for example, to enable the soap composition. The soap composition may, for example, include, soap-based metal complexes, soap-based complexes of aluminum, soap-based lithium complexes or soap-based complexes of calcium. The thickener may also include other types of lubricants, waxy compounds (including polyethylene and polypropylene-containing wax compositions) or viscoelastic hydrophobic polymer composition, at least part of which is oil.

On Fig-22 presents another embodiment of the product 120, in which the protective core 130 that holds the core 140 and the material 150 cold shrink can be made of the same materials and have the same characteristics as the corresponding components of the embodiments presented above. Embodiments presented on Fig-22 may include a closed end or other items to protect the end of the cable.

The product 120 may, for example, to include safety is anzevino 130, having two leaf plot. The product 120 may, for example, to include securing the core 140, located almost next to the first end section of the protective core 130.

Embodiments of the invention may also include material 150 cold shrink, held in the stretched condition over protective core 130 and the holding part of the core 140. As shown in Fig-22, the material 150 cold shrink may surround the first end section of the protective core 130 and the holding part of the core 140, thereby determining the open end of the product 120. Furthermore, the material 150 cold shrink can encircle and close the second end section of the protective core 130, thereby determining the closed end of the product 120. In this case, the material 150 cold shrink must have a suitable shape so that, interacting with a protective core, it provided for sealing the second end portion of the protective core 130.

When installing the product retaining the core 140, the protective core 130 and the material 150 cold shrink located on the component equipment 160 so that after the removal or extraction of retaining the core 140 of the material 150 cold shrink last sits heavily on the plot component 160 equipment.

In particular, as shown in Fig-22, the component 160 on which orogovenia through the open end of the product 120 may be wound in a tubular portion of the material 150 cold shrink, retaining the core 140 and the protective core 130. Retaining the core 140 through the open end of the product 120 can be removed from the material 150 cold shrink, resulting in material 150 cold shrink is reduced in size and sits tightly around the component 160 of the equipment, as will be clearly conversant with the art. While the protective core 130 may remain inside the material 150 cold shrink even after removal of the last holding of cores 140. Each of the retaining core 140 may, for example, be removed so that the retaining core 140 does not pass through any area of the protective core 130.

After surgery to remove or extract the retaining core 140 from the cold shrinkable material of the protective core may remain inside the cold shrinkable material, reduced in size and shrunken tightly around the component 160 equipment, thus forming a non-removable (non-remote) protective core 130. As a result of this, a non-removable (non-remote) protective core 130 may remain in contact with at least part of the tubular part of the cold shrinkable material and to protect the component parts 160 equipment enclosed in the product 120.

Examples of components 160 equipment, which may be tubular hours and the product 120, depicted on Fig-22, include, but are not limited to: coupling devices, the ends of the cables, lugs, twisting and other.

Additionally, before removing the retaining core 140 with the open end of the product 120, the operator may fill the space between the inner surface of the protective core 130 and component 160 equipment sealant 170. The composition and/or characteristics of the sealants described above, applied to this type of incarnations. Such embodiment is shown in Fig, 24, from which it is clear that before removing the retaining core with the open end of the product 120 between the retaining core component 140 and 160 equipment may have enough space for the introduction of the sealant 170, which will fill the space between the protective core 130 and component 160 equipment. Preferably, under the action of gravitational forces sealant 170 filled all the empty seats and replaced them, the air came out of the inner part of the product 120 through the open area between the retaining core component 140 and 160 of the equipment at the open end of the product 120. When the space between the protective core 130 and component 160 equipment will be almost filled with a sealant 170, retaining the core 140 at the open end of the product 120 can be removed from the material 150 cold shrink, R is the result that the material 150 cold shrink is reduced in size and sits around the component 160 equipment, and the sealant 170 is concluded within the device 120.

All incarnations of the product may have these or other important advantages. For example, the protective core may have a mechanical strength, elasticity and abrasion resistance, enhancing protection component of the equipment enclosed within the protective core products. Protective core, as a rule, should be resistant against longitudinal or transverse rupture or cracking that sometimes occurred with cold shrink products of previous generations, when the sharp edge of the component equipment (arising, for instance, by crimping or other deformation) was placed inside the cold shrink products. Thus, additional protection of the cold shrinkable material, provide a protective core, substantially prevents longitudinal or transverse rupture or cracking of the material cold shrink. Protective core may also significantly resist the impact of external environmental factors or mechanical forces. In this regard, embodiments of the product may, for example, to withstand a drop test from a height of standard UL486D, Appendix D. in Addition, embodiments in accordance with the present invention may be easier to install compared to the current products USA cold is key.

In addition, the presence of the protective core may, for example, to prevent unwanted engagement deleted holding core for a component part of equipment when it is removed. Such engagement ("jams") sometimes occurred in the cold shrink products of previous generations in the unwinding spiral belt remove the core, continuous throughout the length of the product, from one end to the other end when it is removed from the product.

Different types of incarnations of the products can be used in various industries and for different applications. For example, embodiments of the invention can be used in the electrical industry for the protection of cables and other hardware components, telecommunications for the protection of fiber optic lines and other hardware components in the automotive industry, irrigation networks mining industry, housing and communal services, power generation, construction and other industries, which can be useful additional protection components through the use of protective core and the cold shrinkable material. Embodiments of the product can also be used to restore the protective covering of the cable or set of cables, sealing of cable or set of cables, connections, ZAZ is mladih or antenna wires, industrial connectors pin-Bush. Examples of the applications that can be used in embodiments of the invention also include, but are not limited to: the branch wires and pipes, protective coating of resin, barrier devices, twisting ropes in mines, seal joints piping, waterproofing, protective devices for the ends of pipes and cables, telephone stations, in particular, grounding, protection and connection wires, electrical panels, isolation of various hardware components, including lugs and bolts, connections, decking, irrigation systems, lighting systems, such as lighting systems at airports and streets, as well as many other.

On Fig-31 shows other embodiment of the invention, designed to protect the junction of the electric wires and including a protective core and the retaining many of cores associated with the respective end sections of the protective core. The cold shrinkable material stretched over at least part of the protective core and at least part of each of the holding centre. Retaining core separately removed from the protective core, resulting in the cold shrinkable material is reduced in size (i.e. shrinks in size approximately 150-250%), namely, the larger diameter of the protective core to a smaller diameter, for example, the diameter of the wire, threaded through the protective core.

On figa presents a view in a disassembled view of the Assembly 200 as part of the product to protect electrical wires. The Assembly 200 includes a protective core 230 having a first end section 232 and the second end section 234, the first holding core 240 is inserted into the first end section 232, and the second retaining the core 242 inserted in the second end section 234. In one of the embodiments of this Assembly is part of the product that are used to connect electrical wires and including material 250 cold shrink (see figv). Protective core 230 closes the connected wires or connectors that are installed on the ends of the joined conductors. In one of the embodiments of the protective core 230 is hollow cylindrical, formed of semi-rigid or rigid plastic material; in some embodiments it may also be corrugated, formed from an electrically non-conductive materials.

In one of the embodiments of the retaining core 240 is a wound in a spiral ribbon and has a first end 251 opposite second end 252, and the tail 253, designed for unwinding of the helix, forming retaining the core 240, with the end 251 to the end 252. The size of the first end 251 is such that it may be is inserted into the first end section 232 of the protective core 230. Retaining the core 242 is a wound in a spiral ribbon and has a first end 261 opposite second end 262, and the tail 263 intended for unwinding of the helix, forming retaining the core 242, with the end 261 to end 262. The size of the first end 261 is such that it can be inserted into the first end section 234 of the protective core 230.

FIGU is a side view of the Assembly 200 is assembled. The first holding core 240 is inserted into the first end section 232, and the second holding core 242 is inserted in the second end section 234 of the protective core 230. In one of the embodiments of the retaining core 240 and 242 come into retaining the core 230 with tension. In one of the embodiments, each of the retaining cores 240 and 242 come inside of the respective end sections 232 and 234 of the protective core to a depth of from about 0.25 to about 0.75 inches. Protective core 240 and 242 are gradually removed by unwinding the tape from the protective core 230, as will be described below.

On Fig presents a cross-section of the protective core 230 and retention of cores 240 and 242 before inserting them into the protective core 230. Protective core 230 has an inner diameter ID1 and an outer diameter OD1, the first holding core 240 has an inner diameter ID2 and outer diameter OD2, the second holding core 242 has an inner diameter ID3 and outer diameter OD3.

In one of the embodiments of the inner diameter ID2 essentially equal to the inner diameter ID3, and they are both smaller than the inner diameter ID1 of the protective core 230. In another embodiment of the invention the inner diameter ID2 is different from the inner diameter ID3, and they are both smaller than the inner diameter ID1 of the protective core 230. In one of the embodiments, both the inner diameter ID2 and ID3 essentially equal to the inner diameter ID1 of the protective core 230, while the respective outer diameter OD2 and OD3 not necessarily coincide with each other.

In one of the embodiments of the outer diameter OD2 and outer diameter OD3 retention of cores 240 and 242, respectively, are compared to the inner diameter ID1 that the latter provides a more or less tight fit inside the protective core 230. In one of the embodiments of the protective core 230 is on the inner surface in the area of end portion 232 of the annular stop 236. Emphasis is designed to keep the core 240 can be inserted inside the protective core 230 to a depth of not more than about 0.75 inches.

On Fig presents a cross-section end portion 272 of the protective core 230 in accordance with another embodiment of the invention. In this embodiment of the protective core 230 is the main part 231 of the core, adjacent to an additional part 233, and this is the main part 231 has a main inner diameter ID1, as an additional part 233 has a second inner diameter 274, greater than the inner diameter ID1. An additional part 233 forms a socket in relation to the main part 231, and its inner diameter is designed to receive the end 251 retaining the core 240.

In one of the embodiments of the outer diameter OD1 of the protective core 230 essentially equal to the outer diameter OD2 retaining the core 240, and an inner diameter ID1 essentially equal to the inner diameter ID2, so that the inner surfaces of these parts are "in line"when holding the core 240 is inserted into the protective core 230. Inner diameter 274 is such that in the socket formed by an additional part of the protective core, enters the outer surface of the retaining core 240, having an outer diameter OD2, when the data connection parts between themselves.

On figa presents a side view, and FIGU - axonometric view of the end portion 282 of the protective core 230 in accordance with another embodiment of the invention. In this embodiment, the end section 282 has cuts 285, designed to extend the protective core 230 of the inner diameter ID1 to a larger inside diameter 284. The tail section 282 includes many flexible segments separated by notches 285, and these segments of the end portion 282 are the La smooth deformation of the protective core 230 to the change of its inner diameter to the diameter of 284. This ensures the expansion of the end portion 282 of the protective core 230 and its landing on the tail section 251 retaining the core 240.

On figa and 29B are side end portion 292 of the protective core 232 in accordance with another embodiment of the invention. In this embodiment of the protective core 230 has a body 237 of the core and the set of edges 239, and these ribs 239 are designed for flexible deformation of the end portion 292 and its expansion from the first inner diameter ID1 to a larger inside diameter 294.

For example, in one of the embodiments of the ribs 239 attached to the housing 237 core elongation or greater elasticity, so that the tail section 292 of the protective core 230 can elastically be deformed, stretched to a larger inside diameter 294, the size of which is such that it could enter the ends 251 and 261 retention of cores 240 and 242, respectively.

On figa presents axonometric view of an Assembly 200 with holding hearts 240 and 242, inserted in a protective core 230. In one of the embodiments of the invention at the junction of the holding core 240 and the protective core 230, and at the junction of the holding core 242 and the protective core 230 is applied mastic 255. For the purposes of clarity of description, the Assembly 200 is shown without material 250 cold the charge (pigv), so you can see how holding the core 240 and 242 are inserted into the protective core 230.

On FIGU presents axonometric view of the product 220 material 250 cold shrink located around the Assembly 200 (shown in figa). Shrinkable material 250 closes at least partially retaining the core 240 and 242 and the entire protective core 230. In one embodiments, the operator removes retaining the core 240 of the protective core 230, pulling the tail 253 (pigv), resulting in the core 240 unwound and end 251 is gradually removed from the protective core 230. Similarly, pulling the tail 263, the operator removes the protective core 230 holds the core 242, while the latter will not be fully uncoiled from the protective core 230 that allows shrinkable material 250 will decrease in size and take on a protective core 230 (as well as conductor threaded through the protective core 230).

On figs presents axonometric view of a product in a state where shrinkable material 250, shown in figv, sank on one of the end sections 234 (figa) protective core 230. In the area of retaining core 240 shrinkable material 250 is still in the stretched condition. Retaining the core 242 (pigv) removed from the protective core 230 (figa), and shrinkable material 250 with what was little more than around the component 260 equipment. The hardware components may include electrical cables and wires for low voltage devices (for example, under voltage less than 5 kV), connectors, cable ends, lugs, bus connections and other, as described above.

On fig.30D presents axonometric view of a product in a state where shrinkable material 250 cringed and sat on the component 260 of the equipment on both ends of the protective core 230 (figa). Returning to Fig, note that in one of the embodiments of the retaining core have an outer diameter OD2 and OD3 smaller than the outer diameter OD1 of the protective core 230, which provides for a phased reduction of the amount of shrinkage of the material from the large outer diameter OD1 of the protective core 230 to small external dimensions of the component 260 equipment. Due to this shrinkage, the material makes a gradual shrinkage of the relatively large size corresponding to the outer diameter OD1 of the protective core 230 to the relatively small size corresponding to the outer diameter of the component 260 equipment, and eventually the overall range of the shrinkage is more than 300%. The fact that the local and immediate shrinkage shrinkage of the material preferably should be between 200 to 300%, that is, be in the range of elastic shrinkage. Going beyond the range of the elastic shrinkage is undesirable, as can the problems with installation, for example, hardware components of small diameter that sometimes occurred when using cold shrink products of previous generations.

Therefore, the material 250 cold shrink used with the Assembly 200 must be configured or designed for phased (controlled) shrinkage exceeding 300%to ensure good his landing on the protective core 230, having a relatively large diameter, and component 260 equipment having a relatively small diameter.

In one of the embodiments of the shrinkable material 250 is designed to provide its controlled shrinkage of about 150-200% of the outer diameter OD1 of the protective core 230 to the outer diameter OD2 retaining the core 240. After removing the retaining core 240 shrinkable material 250 sets (compressed) approximately 150-250% of the outer diameter OD2 retaining core 240 to the outer diameter of the component 260 equipment. In this embodiment there are many stages of controlled compression shrinkable material 250, each time by about 200% (i.e. within the range of elasticity), which provides a tight fit shrinkable material 250 around the protective core 230, having an outer diameter OD1, and component 260 equipment having a smaller outer diameter.

Like incarnations, op the toboggan above, before removing the retaining core 240, the operator may fill the space between the inner diameter ID1 of the protective core 230 and component 260 equipment sealant (not shown, but similar hermetico 170, depicted in Fig, 24). As also described above, after removing the retaining core 240 of the protective core 230 remains inside the material 250 cold shrink, and material 250 cold shrink shrinks around the component 260 equipment, forming a non-removable protective shell.

On Fig presents a side view of the product 300 in accordance with another embodiment of the invention, incorporating a protective core 230 and the retaining many of cores and 240, 242, 302 and 304. For clarity of illustration, the material 250 cold shrink (see figv) not shown. Retaining the core 240 is inserted into the protective core 230, and holding the core 302 is inserted into the retaining core 240 so that the tail 253 retaining the core 240 and the tail 306 retaining core 302 protrude from the holding core 302 to separate unwinding retention of cores 240 and 302. Similarly, the CRS core 242 is inserted into the protective core 230, and holding the core 304 is inserted into retaining the core 242 so that their tails 253 and 308 respectively protrude from the holding serdtsevini to remove the retaining cores 242 and 304 of the protective core 230. In one of the embodiments of the retaining core sits inside the holding of cores 240 and 242 with tension.

This embodiment of the product 300 is intended for a ring environment hardware component (see 260 on figs), such as wire, conduit or wiring, and the cold shrinkable material (see POS on figv) is compressed around the part of the hardware component after removal of the retaining cores 240, 242 or 302 of the protective core 230. In one of the incarnations after removal of the retaining cores 240 and 302 material 250 cold shrink sits approximately 150-250% at the junction of the protective core 230 and the previous position retaining the core 240 on the component equipment, and in addition to this material 250 cold shrink sits approximately 150-250% between retaining the core 240 and the retaining core 302 (to remove them). As a result, the material 250 cold shrink shrinks (shrinks) in the range of about 300-500%of the external diameter of the protective core 230 to the outer diameter of the component equipment, and any part of the product 300 local shrinkage does not exceed 300%.

The above-described embodiment, the product can quickly perform a protective coating of connections of electric wires, low voltage, satisfy the requirements of the standard (UL486D, Appendix D - test pad is of a height), and they are easier to install compared to existing products cold shrink.

Although the above description of embodiments of the products contain many specific details are given for illustrative purposes versed in the art it will be clear that there are numerous changes, modifications and substitutions of the above details without departing from the idea and purpose of the invention. In this sense, the above detailed description of embodiments of the invention does not imply imposing on him any restrictions. So, for example, references to such terms as installed, connected, attached, connected, coupled, etc. should be considered in a broader sense, i.e. as the installation, connection, attachment, connection, coupling, etc. achieved directly, indirectly, and/or perform a whole. The full purpose of the invention is defined only by the claims and their legal equivalents.

1. The product cold shrink sealing compounds containing:
the protective core having at least two end section;
many retention of cores, one end of each of which mates with a corresponding end section of the protective core;
and at least one cold shrinkable material held in the stretched condition over on m is Nisha least part of the protective core and at least part of each of the retaining hearts;
while retaining the core, the protective core and the cold shrinkable material together koltseobrazno surround hardware component, so that the material is cold shrink, shrinking, sits on part of the hardware component after removing the end of one of the retaining cores from the corresponding end portion of the protective core.

2. The product cold shrink sealing compounds according to claim 1, characterized in that the protective core contains a first end section and second end section, and a retaining many of the core contains the first holding core inserted into the first end section of the protective core and the second retaining the core inserted in the second end section of the protective core.

3. The product cold shrink sealing compounds according to claim 2, characterized in that the first holding core is inserted with an interference fit in the first end section of the protective core and the second holding core is inserted with an interference fit in the second end section of the protective core.

4. The product cold shrink sealing compounds according to claim 2, characterized in that the protective core has a first outer diameter and a first inner diameter, the first holding core has a second inner diameter, and the second holding core who meet the third inner diameter, while the second and third inner diameters smaller than the first inner diameter of the protective core.

5. The product cold shrink sealing compounds according to claim 1, characterized in that the protective core contains a first end section located opposite the second end portion, and the retaining many of the core contains the first holding core inserted into the first end section of the protective core and the second retaining the core inserted into the end of the first holding core opposite the first end portion of the protective core.

6. The product cold shrink sealing compounds according to claim 1, characterized in that the cold shrinkable material is a single whole element, completely surrounding the outer surface of the protective core and partially surrounding each of the retaining hearts.

7. The product cold shrink sealing compounds according to claim 1, characterized in that at least one cold shrinkable material contains many separate elements, cold shrink, each of which surrounds a corresponding end section of the protective core and the plot next to him holding the core.

8. The product cold shrink sealing compounds according to claim 1, characterized in that the retaining many of the core contains the bottom of the following types of fibre: remove the retaining core, retaining the core of the coiled tape or destructible retaining the core.

9. The product cold shrink sealing compounds according to claim 1, characterized in that the protective core is flexible or bendable.

10. The product cold shrink sealing compounds according to claim 1, characterized in that the protective core is corrugated.

11. The product cold shrink sealing compounds according to claim 1, characterized in that it further comprises:
sealant located between the inner diameter of the protective core and component equipment.

12. The product cold shrink sealing compounds according to claim 11, wherein the sealant contains a curable composition.

13. The product cold shrink sealing compounds according to claim 11, wherein the sealant contains a plastic material.

14. The product cold shrink sealing compounds according to claim 1, characterized in that the protective core includes a housing core having a primary diameter and the first end section located opposite the second end portion, at least one of the first and second end sections is expanded to a diameter greater than the primary diameter of the core.

15. The product cold shrink sealing compounds according to claim 1, characterized in, Thu the protective core contains the body of the core, defines primary diameter, and the first end section located opposite the second end portion, at least one of the first and second end sections has cuts, giving it the form of an expanding cone for receiving one end of the holding centre.



 

Same patents:

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: subsurface laying of screened communication cables designed for local communication networks to operate at high frequencies and as "last-mile" cables.

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

FIELD: cable connectors for power transfer between power supply and borehole instrument modules of downhole telemetering system in the course of boring.

SUBSTANCE: proposed electrical connector has one or more contact pairs insulated from one another and electrical conductors connected to internal and external opposing contacts of contact pairs. External contacts of contact pairs are made in the form of semi-rings which are installed opposite one another within flexible insert and are free to move toward one another under impact of external pressure. Proposed method for manufacturing this electrical connector includes connection of electrical conductors to contacts, of which external ones are made in the form of semi-rings, integral with auxiliary bushing and wrapped with band made of polymerizing or curing material, such as raw rubber, on top of auxiliary bushing. Wrapping procedure includes filling of cavities followed by placing conductors along blank axis and final wrapping until diameter of blank becomes greater than outer diameter of electrical connector. Blank is fitted between top and bottom cases of mold, compressed at the same time heating it, whereupon auxiliary bushing is completely removed by boring inner diameter of blank until semi-rings are fully separated.

EFFECT: enhanced power capacity, reliability, and service life of power supply.

5 cl, 6 dwg

FIELD: electrical connector and method for connecting coaxial cable lead to terminal.

SUBSTANCE: proposed connector has nut incorporating receiving port for connection to terminal. Nut also has circular clip. Connector also has base member one of whose ends is provided with projection to be inserted through clip hole. Other end of base member incorporates part of inner surface. Connector also has support with flange and body. Support is free to move for compressing external cable conductor and shell with support body and part of inner surface to obtain distal compression. Tightening nut with terminal compresses projection between support flange and circular clip to obtain proximal tightness.

EFFECT: enhanced tightness, reduced manufacturing and maintenance charges.

10 cl, 11 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed water-and-gas-tight stuffing box designed for terminating ends of communication cable line, including plastic-sheathed telephone cables with polyethylene insulated conductors, in capacity of 100 to 600 pairs directly in switchgear cabinet on vertically mounted cables which can be or not held at gage pressure and with water-repelling material filled core has shield connector secured on aluminized polyethylene cable sheath in contact with conical surface of through hole at input end of body; plastic cable sheath is filled within stuffing box with cold-cured polyurethane sealing compound; each conductor is covered with plastic insulating layer throughout its entire length.

EFFECT: simplified design, enhanced reliability of cable box.

1 cl, 7 dwg

FIELD: devices for formation of electrical connections in vehicles; the repair kit is designated for repair of a failed electrical device of a vehicle connected to the vehicle electrical equipment system by several wires.

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EFFECT: simplified aftersale servicing of the vehicle.

9 cl, 8 dwg

Cable sealing // 2256992

FIELD: flexible coatings and method for cable splice sealing.

SUBSTANCE: flexible coating for sealing cable splice without external heating has gel layer and supporting layer; its flexibility is sufficient to enable manually making gathers around cable-to-splice transition sections of smaller size in case there is gel at this transition for packing resulting seal. Supporting layer preferably made of low-density polyethylene ensures mechanical strength and facilitates coating procedure. Evaporation preventing layer preferably made of aluminum may be applied to supporting layer. Protective layer may be applied to evaporation preventing layer. Adhesion reducing material may be used at least on one end of gel layer facing supporting layer to provide for regulating coating placed on cable splicing sections. Flexible or rubber band may be wound on applied coating for gel compression.

EFFECT: provision for reusing seal obtained; enhanced sealing length.

38 cl, 19 dwg

FIELD: repairs of communication line cables laid in soils of all kinds in cable conduits, manifolds, and tunnels.

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EFFECT: improved repair quality, enhanced service life of junction box due to elimination of electrochemical corrosion.

3 cl, 1 dwg

The invention relates to the connecting couplings designed for jointing construction of the lengths of the electric communication cables laid in cable ducts, sewers, tunnels, walls of buildings

The invention relates to underground pipelines and combined copper and optical cable and is designed to carry low-frequency branches conductive wires from the combined cable on his uncut construction length with additional low-frequency communication cable with copper conductors

FIELD: repairs of communication line cables laid in soils of all kinds in cable conduits, manifolds, and tunnels.

SUBSTANCE: proposed method includes installation of split lead bushing on aluminum sheath of each cable followed by shifting both bushings along cables away from spliced joint of cable conductors, running exposed sections of aluminum sheath over with tin, fitting bushings back in place, and soldering them to tinned sections of aluminum sheath; at the same time longitudinal seam on bushings is soldered, ends of bushings are sealed by thermosetting tape, junction box is installed above spliced joint, and its butt-ends are soldered to bushings. In order to repair outer shielding hose, junction box and adjacent cable sections are covered with sealing compound and moist-cured bandage.

EFFECT: improved repair quality, enhanced service life of junction box due to elimination of electrochemical corrosion.

3 cl, 1 dwg

Cable sealing // 2256992

FIELD: flexible coatings and method for cable splice sealing.

SUBSTANCE: flexible coating for sealing cable splice without external heating has gel layer and supporting layer; its flexibility is sufficient to enable manually making gathers around cable-to-splice transition sections of smaller size in case there is gel at this transition for packing resulting seal. Supporting layer preferably made of low-density polyethylene ensures mechanical strength and facilitates coating procedure. Evaporation preventing layer preferably made of aluminum may be applied to supporting layer. Protective layer may be applied to evaporation preventing layer. Adhesion reducing material may be used at least on one end of gel layer facing supporting layer to provide for regulating coating placed on cable splicing sections. Flexible or rubber band may be wound on applied coating for gel compression.

EFFECT: provision for reusing seal obtained; enhanced sealing length.

38 cl, 19 dwg

FIELD: devices for formation of electrical connections in vehicles; the repair kit is designated for repair of a failed electrical device of a vehicle connected to the vehicle electrical equipment system by several wires.

SUBSTANCE: the repair kit has a new electrical device installed instead of the failed one, several wires connected to the new electrical device and a built-up protective box designated for protection of the electrical connection made by joining of the wires of the new electrical device and the wires of the vehicle electrical equipment system. The built-up protective box has a body with several holes insulated from one another. The packing rings positioned in each hole of the body intended for arrangement of the new electrical device section of the connected respective wire of the vehicle electrical equipment system and the respective new electrical device form in fact a waterproof packing around the section of the wires connected to one another by joining. The protective built-up box has also a cover joined to the body. The claimed repair kit is preferably designated for replacement of the sensor of the content of oxygen in exhausted gases failed on the vehicle.

EFFECT: simplified aftersale servicing of the vehicle.

9 cl, 8 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed water-and-gas-tight stuffing box designed for terminating ends of communication cable line, including plastic-sheathed telephone cables with polyethylene insulated conductors, in capacity of 100 to 600 pairs directly in switchgear cabinet on vertically mounted cables which can be or not held at gage pressure and with water-repelling material filled core has shield connector secured on aluminized polyethylene cable sheath in contact with conical surface of through hole at input end of body; plastic cable sheath is filled within stuffing box with cold-cured polyurethane sealing compound; each conductor is covered with plastic insulating layer throughout its entire length.

EFFECT: simplified design, enhanced reliability of cable box.

1 cl, 7 dwg

FIELD: electrical connector and method for connecting coaxial cable lead to terminal.

SUBSTANCE: proposed connector has nut incorporating receiving port for connection to terminal. Nut also has circular clip. Connector also has base member one of whose ends is provided with projection to be inserted through clip hole. Other end of base member incorporates part of inner surface. Connector also has support with flange and body. Support is free to move for compressing external cable conductor and shell with support body and part of inner surface to obtain distal compression. Tightening nut with terminal compresses projection between support flange and circular clip to obtain proximal tightness.

EFFECT: enhanced tightness, reduced manufacturing and maintenance charges.

10 cl, 11 dwg

FIELD: cable connectors for power transfer between power supply and borehole instrument modules of downhole telemetering system in the course of boring.

SUBSTANCE: proposed electrical connector has one or more contact pairs insulated from one another and electrical conductors connected to internal and external opposing contacts of contact pairs. External contacts of contact pairs are made in the form of semi-rings which are installed opposite one another within flexible insert and are free to move toward one another under impact of external pressure. Proposed method for manufacturing this electrical connector includes connection of electrical conductors to contacts, of which external ones are made in the form of semi-rings, integral with auxiliary bushing and wrapped with band made of polymerizing or curing material, such as raw rubber, on top of auxiliary bushing. Wrapping procedure includes filling of cavities followed by placing conductors along blank axis and final wrapping until diameter of blank becomes greater than outer diameter of electrical connector. Blank is fitted between top and bottom cases of mold, compressed at the same time heating it, whereupon auxiliary bushing is completely removed by boring inner diameter of blank until semi-rings are fully separated.

EFFECT: enhanced power capacity, reliability, and service life of power supply.

5 cl, 6 dwg

FIELD: subsurface laying of screened communication cables designed for local communication networks to operate at high frequencies and as "last-mile" cables.

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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