OF / CV cable taping terminal processing method

Abstract

To provide a various cable metal lock terminal processing construction method that does not use a fire, does not require special skills, can reduce the time and cost required for operations, and can perform terminal processing operations efficiently in a short time.SOLUTION: An OF and CV cable taping terminal processing construction method is provided which includes: a metal layer end exposure step of removing a corrosion proof layer 11 of an OF cable 1 at a cable end 1a to expose an end of a metal layer 12 provided on a lower layer of the corrosion proof layer 11; a lid member attachment step of covering the cable end 1a in a state where a part of a side face of the end of the metal layer 12 is exposed, by using a lid member 2 formed to cover a cross section of the cable end 1a from which an oil passage is exposed; an adhesive layer forming step of forming an adhesive layer 3 on the side face of the metal layer 12 and a side face 2a of the lid member 2 by using an adhesive bond 31; and an oil leakage prevention layer forming step of covering an upper layer side of the adhesive layer 3 by using a silicon tape to form an oil leakage prevention layer 4 covering the end of the metal layer 12 and the lid member 2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an OF·CV cable taping terminal processing method. [Background technology]

[0002] Conventionally, an oil-filled (OF) cable having an oil passage is a cable that ensures insulation by injecting and filling the inside with insulating oil at a certain pressure. Since an OF cable contains a large amount of insulating oil inside, when installing or removing the OF cable, it is necessary to cut a long OF cable laid underground or the like before transporting or storing it, and an OF cable with a cut end often leaks insulating oil present inside from the end. For this reason, the OF cable is generally removed after sealing the cut end. And, as for the terminal processing after cutting the OF cable, lead processing is generally performed from the viewpoint of workability and cost, but processing methods such as those shown in Patent Documents 1 and 2 have also been proposed.

[0003] For example, Patent Document 1 describes a method in which the plastic sheath on the outer surface of the end of an OF cable is stripped away to expose the aluminum sheath, any irregularities on the surface of the aluminum sheath are filled in with solder, and then a portion of the aluminum sheath at the tip is also stripped away and the space between the cable core and the aluminum sheath is sealed with a cap at that location, and further, the OF cable is inserted into the opening of a steel pipe with one end open, a ring spacer is provided between the vicinity of the opening of the steel pipe and the aluminum sheath to make contact, and the cable is soldered to form a hermetic seal.

[0004] Patent Document 2 also describes a method in which the plastic sheath on the outer surface of the end of an OF cable is stripped away to expose the metal sheath, a synthetic resin tape is wrapped around the irregularities on the surface of the metal sheath, the end is inserted through the opening of a metal tube with one end open to cover the OF cable with the tube, and then a compressive force of 5 to 10 tons is applied to the outer periphery of the side of the tube using a special device to compress and integrate the OF cable and the tube, thereby hermetically sealing them. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 1-99427 [Patent Document 2] JP 2004-343864 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, the conventional end treatment of an OF cable, which involves lead work as shown in Patent Documents 1 and 2, has the following problems. That is, Patent Documents 1 and 2 have problems in that the construction requires the special skills of a plumber, the work takes a lot of time, and it is necessary to handle fire at the construction site. Furthermore, in the end treatment of the OF cable in Patent Document 2, a dedicated device is required for compression, which increases the cost of the device, leaving room for improvement in this regard.

[0007] The present invention has been made in consideration of the above circumstances, and its purpose is to provide an OF-CV cable taping terminal processing method which does not require the use of fire or special skills, reduces the effort and cost required for the work, and enables terminal processing work to be performed efficiently in a short time. [Means for solving the problem]

[0008] (1) A first aspect of the OF-CV cable taping terminal processing method according to the present invention is an OF-CV cable taping terminal processing method applied to an end of a cable having an oil passage, comprising: a metal layer end exposing step of removing the cable covering at the end of the cable to expose an end of a metal layer provided under the covering; a lid member attaching step of using a lid member formed to cover the cross section of the end of the cable where the oil passage is exposed to cover the end of the cable in a state where a part of the side of the end of the metal layer is exposed; an adhesive layer forming step of forming an adhesive layer on the side of the metal layer and the side of the lid member using a chemical; and an oil leakage prevention layer forming step of covering the upper layer side of the adhesive layer with a first covering member to form an oil leakage prevention layer that covers the end of the metal layer and the lid member. a plating wire attachment step of winding a plating wire extending linearly around both ends of the oil leakage prevention layer in the radial direction of the oil leakage prevention layer in the oil leakage prevention layer forming step, thereby bringing the oil leakage prevention layer and the metal layer into close contact with each other and bringing the oil leakage prevention layer and the lid member into close contact with each other; Equipped with The oil leakage prevention layer has protruding regions that protrude from the adhesive layer on both sides in the axial direction of the cable, and the plated wire is wound around only the protruding regions of the oil leakage prevention layer that do not cover the adhesive layer from the outer circumferential side. It is characterized by the following.

[0009] The OF-CV cable taping terminal processing method of the present invention can be performed efficiently in a short time by simply attaching a cover member to the metal layer at the end of a cut cable, and then covering the cover member and the end of the cable with the first coating member via an adhesive layer made of a chemical agent on the upper side to form an oil leakage prevention layer. This simple process seals the oil path at the end of the cable and prevents oil leakage from the cable. In addition, according to the present invention, since the adhesive layer is formed by the hardening of the agent, the necessary materials and equipment can be minimized, and since the effective time of the agent can be set arbitrarily, the work can be performed quickly by using an agent with a fast hardening time. Furthermore, the present invention has the advantage that a large work space is not required, and the work can be performed in a small place.

[0010] In addition, according to the present invention, compared to conventional cable termination work involving leadwork using a burner to melt lead, no special techniques are required because lead is not used, and there is no need to secure workers with advanced construction techniques, which improves work efficiency and reduces costs. Moreover, compared to leadwork, terminal treatment can be performed without the need to handle fire.

[0011] (2) Aspect 2 of the present invention is preferably such that, in the OF-CV cable taping terminal processing method of aspect 1, the oil leakage prevention layer forming step further comprises a restraining member attachment step of attaching restraining members to both ends of the oil leakage prevention layer in a radial direction to bring the oil leakage prevention layer into close contact with the metal layer and also bring the oil leakage prevention layer into close contact with the cover member.

[0012] Also, In this case, an oil leakage prevention layer was installed. Plated Wire This allows the oil leakage prevention layer and the metal layer, and the oil leakage prevention layer and the lid member to be tightly attached to each other, thereby further improving the oil leakage prevention effect of the oil leakage prevention layer.

[0013] ( 2 Aspects of the present invention 2 In the OF·CV cable taping terminal processing method of aspect 1, it is preferable to further include a cable end reinforcing step of covering the upper layer side of the oil leakage prevention layer with a second covering member to reinforce the end of the cable.

[0014] In this case, the end of the cable covered with the second covering member can be reinforced by covering and enveloping the entire oil leakage prevention layer, which has the function of preventing oil leakage, from the upper layer side with the second covering member. Therefore, the oil leakage prevention layer is protected by the second covering member, and the deterioration of the function of the oil leakage prevention layer, such as damage to the oil leakage prevention layer, can be suppressed, and the oil leakage prevention layer can be maintained for a long period of time.

[0015] ( 3 Aspects of the present invention 3 In the OF·CV cable taping terminal processing method of the first aspect, the first covering member may be a tape member having self-adhesive properties.

[0016] In this case, by wrapping a tape member having self-adhesive properties so as to cover the adhesive layer, the airtightness provided by the first covering member can be constantly maintained.

[0017] ( 4 Aspects of the present invention 4 The aspect 3 In the OF·CV cable taping terminal processing method, the second covering member may be a tape member having hardening properties.

[0018] In this case, by wrapping a hardening tape member so as to cover the oil leakage prevention layer, the installation work can be easily performed and airtightness can be constantly maintained throughout.

[0019] ( 5 Aspects of the present invention 5 In the OF·CV cable taping terminal treatment method of aspect 1, the agent may be characterized in that it has hardening properties and is hardenable when applied to an application surface containing oil.

[0020] In this case, the agent is capable of hardening when applied to the oil-containing application surface, so that the agent applied to the side surface of the cover member and the metal layer hardens to more securely seal the end surface of the cable. Effect of the Invention

[0021] The OF-CV cable taping terminal processing method of the present invention does not require the use of fire or special skills, reduces the effort and cost required for the work, and enables terminal processing work to be completed efficiently in a short time. [Brief description of the drawings]

[0022] [Figure 1] 1 is a cross-sectional view taken along an axial direction, showing a processing structure for an OF cable according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view of an OF cable. [Diagram 3] 2 is a cross-sectional view taken along line AA in FIG. 1. [Figure 4]1(a) to 1(c) are diagrams illustrating a procedure for a treatment method for an OF cable. [Diagram 5] 4(a) and (b) are diagrams showing the procedure following FIG. 4(c). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, an embodiment of the OF-CV cable taping terminal processing method according to the present invention will be described with reference to the drawings. Note that in each drawing, the scale of each component may be appropriately changed as necessary to make each component large enough to be visible.

[0024] 1 and 2, the OF-CV cable taping terminal processing method of this embodiment is a construction method for blocking the end (cable end 1a) of an OF cable 1 having an oil passage 15 with oil injected therein. That is, the OF-CV cable taping terminal processing method of this embodiment is a method in which a cover member 2 is fitted from the outside over the cut cable end 1a of the OF cable 1 to seal it, and a cable processing structure 10 is provided that forms a terminal processing section for preventing the oil injected inside the OF cable 1 from leaking out.

[0025] In the OF cable 1, a corrosion protection layer 11, a metal layer 12, an insulating layer 13, and a core wire 14 are laminated in this order from the outer periphery toward the center. That is, in the OF cable 1, a core wire 14 is provided integrally through an insulating layer 13 inside a metal layer 12 made of a shielding member covered with a corrosion protection layer 11. The core wire 14 is formed of a conductor and shielded by the metal layer 12, and a plurality of core wires are bundled in a spiral and cylindrical shape. A gap is formed inside the core wire 14. An oil passage 15 containing the core wire 14 and filled with oil is formed inside the insulating layer 13.

[0026] Here, the OF-CV cable taping terminal treatment method according to this embodiment is intended for application as a temporary repair carried out as an initial measure prior to a permanent repair, but depending on the oil leakage condition, the number of years of use of the OF cable 1, the installation environment, etc., it may also be an OF-CV cable taping terminal treatment method applied as a permanent repair.

[0027] As shown in Figs. 1 and 3, the cable treatment structure 10 includes a cover member 2 that is placed on a metal layer 12 exposed by stripping off an outermost layer (anticorrosion layer 11) of an OF cable 1 at a cable end 1a, an adhesive layer 3 made of an adhesive bond 31 (chemical agent) formed on an outer peripheral surface 12a (side surface) of the metal layer 12 and a side surface 2a of the cover member 2, an oil leakage prevention layer 4 formed by a silicone tape 41 (first covering member) that covers the upper layer side of the adhesive layer 3, and plated wires 5 that radially restrain the oil leakage prevention layer 4 at both ends 4a, 4b of the oil leakage prevention layer 4. and, The oil leakage prevention layer 4 is provided with a casting tape 6 (second covering member) that covers the upper layer side thereof, and a corrosion prevention tape 7 that further covers the upper layer side thereof.

[0028] 1, the cover member 2 is a topped cylindrical body with a circular cross section that is open at one end (open end 2b) and closed at the other end, and includes a cylindrical body 21 having a side surface 2a and a top wall 22. The cover member 2 has an inner diameter larger than the outer diameter of the OF cable 1. In this embodiment, the inner diameter of the cover member 2 is larger than the outer diameter of the metal layer 12 of the OF cable 1. The cylindrical body 21 functions as a cover material (cap) for inserting and accommodating the end portion 1a of the OF cable 1 and for closing the cable end surface 1b opened by cutting the OF cable 1.

[0029] The material for the cover member 2 may be a material that is strong enough to withstand the pressure of the oil injected into the OF cable 1 leaking (blowing out) from the cable end face 1b and not be destroyed by the weight of the OF cable 1. For example, metals such as iron, copper, aluminum, titanium, etc., or alloys of these metals, or reinforced plastics such as fiber reinforced plastics (FRP) and carbon fiber reinforced plastics (CFRP), etc., may be used.

[0030] The shape of the cover member 2 is not particularly limited except that one end is open, and examples of the shape of the tube body 21 include a cylindrical shape as in this embodiment, an elliptical tube shape, and a polygonal tube shape (triangular tube shape, square tube shape, etc.). Since the cross section of the OF cable 1 is usually circular, a cylindrical shape is preferable in order to match the shape of the OF cable 1 and to prevent external forces from acting on only specific points on the outer surface of the OF cable 1 and to configure it so that the forces act evenly.

[0031] The adhesive layer 3 made of the adhesive bond 31 is applied in an area covering the region extending from the side surface 2a of the cover member 2 to the outer peripheral surface 12a of the metal layer 12. The adhesive bond 31 of the adhesive layer 3 has a hardening property and has a property of being hardenable when applied to an oily application surface. For example, the Y618H type of the adhesive Metallock (manufactured by Cemedine Co., Ltd.) which is a high-strength, room-temperature fast-curing adhesive that does not require heating and is mainly composed of modified acrylic, can be used. The Y618H type adhesive bond has a higher bonding strength to metal than the Y610 type manufactured by the same company. When the Y618H type is used, it can perform an oil-stopping function regardless of the surface pressure of the casting tape 6 that is coated on the upper layer side of the adhesive layer 3. In addition, the Y618H type does not contain a flammable solvent, hardens even in a coarse mixture, can harden at a temperature of 0°C, and has the property of obtaining adhesive strength even in a slightly oily surface state. Furthermore, it can be stored for a long time at room temperature of 5 to 25°C, and does not emit a foul odor like conventional acrylic adhesives. It can also be used to join dissimilar materials, such as metal and CFRP.

[0032] The silicone tape 41 constituting the oil leakage prevention layer 4 is a self-adhesive tape member, and is wrapped around the entire area of ​​the applied adhesive bond 31. The silicone tape 41 is wrapped around the OF cable 1 in the circumferential direction for at least one turn, and overlaps in the axial direction. As a result, the silicone tape 41 forms the oil leakage prevention layer 4 over the entire circumferential direction in the region spanning the side surface 2a of the cover member 2 and the outer peripheral surface 12a of the metal layer 12.

[0033] The plated wire 5 is, for example, a silver-plated soft copper wire having an outer diameter of about 2 mm, and is wound around each of both ends 4a, 4b of the oil leakage prevention layer 4 at least once in the circumferential direction of the OF cable 1. The number of plated wires 5 is not limited to two, that is, both ends 4a, 4b of the oil leakage prevention layer 4, and may be provided at three or more places at predetermined intervals in the axial direction of the OF cable 1, including at least both ends 4a, 4b of the oil leakage prevention layer 4. The oil leakage prevention layer 4 is restrained in the radial direction by the wound plated wire 5. This allows the oil leakage prevention layer 4 and the metal layer 12 to be in close contact with each other, and also allows the oil leakage prevention layer 4 and the lid member 2 to be in close contact with each other.

[0034] The casting tape 6 is wound so as to cover and encase the entire silicone tape 41 from the upper layer side, and has the function of reinforcing the end 1a of the OF cable 1. The size and area of ​​the casting tape 6 are set to be larger than those of the silicone tape 41. The casting tape 6 is wound around the OF cable 1 in the circumferential direction for at least one turn, and overlaps in the axial direction. As the material for the casting tape 6, a material having excellent elasticity in the vertical, horizontal and diagonal directions is preferable from the viewpoint of fit and followability, and a material having low adhesion is preferable from the viewpoint of winding workability and re-laying. For example, a tape made of a material containing polyurethane (PU) resin in glass fiber knit can be used. In this case, the polyurethane resin impregnated in the glass fiber knit reacts with water to obtain a property of being easily hardened.

[0035] The anticorrosive tape 7 is wound so as to cover and encase the entire casting tape 6 from the upper layer side, and has the function of protecting the portion reinforced by the casting tape 6 from corrosion. The size and area of ​​the anticorrosive tape 7 are set to be larger than those of the casting tape 6. The anticorrosive tape 7 is wound around the OF cable 1 in the circumferential direction for at least one turn, and overlaps in the axial direction. The material of the anticorrosive tape 7 is preferably a material having excellent durability and anticorrosive properties, such as polyvinyl chloride (PVC). In this embodiment, the anticorrosive tape 7 is oriented toward the upper layer side of the casting tape 6, so that it can be finished smoothly to hide the unevenness of the wrapped casting tape 6.

[0036] Next, the procedure of the OF·CV cable taping terminal processing method at the terminal of the OF cable 1 will be described in detail with reference to Figs. 4(a) to (c) and Figs. 5(a) and (b).

[0037] 1 and 4(a), at the end (cable end 1a) of the OF cable 1, the anticorrosive layer 11 is removed to expose the end of the metal layer 12 provided under the anticorrosive layer 11 (metal layer end exposing step). Specifically, at the cut end (cable end 1a) of the OF cable 1, the anticorrosive layer 11 covering the outside of the metal layer 12 is peeled off using, for example, a sheath cutter, to expose the outer circumferential surface 12a of the metal layer 12.

[0038] At this time, as shown in Fig. 2, the OF cable 1 comprises a metal layer 12, a corrosion protection layer 11 wrapped around the outer circumference of the metal layer 12, and a hollow oil passage 15 in which oil is injected together with a core wire 14 inside the metal layer 12, and when the OF cable 1 is cut, the oil filled in the oil passage 15 leaks out. Here, the OF-CV cable taping terminal processing method for the OF cable 1 is performed to prevent oil from leaking out from the cable end 1a of the OF cable 1 at the cut position.

[0039] Next, as shown in Fig. 4(b) and (c), immediately after the completion of the above-mentioned coating removal step, the cable end 1a is covered with a cover member 2 formed so as to cover the cross section of the cable end 1a (cable end face 1b) where the oil passage 15 is exposed, with a part of the outer circumferential surface 12a of the end of the metal layer 12 being exposed (cover member attachment step). The cover member 2 is fitted and attached so as to cover the entire outer circumferential surface 12a of the exposed metal layer 12. At this time, the cover member 2 is provided so that the open end 2b of the cover member 2 and the cut end 11a of the corrosion protection layer 11 are aligned in the axial direction. It is preferable to attach the cover member 2 as soon as possible after the OF cable 1 is cut.

[0040] Next, as shown in FIG. 4(c), an adhesive layer 3 is formed on the end of the metal layer 12 and the side surface 2a of the cover member 2 using an adhesive bond 31 (adhesive layer forming step). The adhesive bond 31 is applied to an area covering the region from the side surface 2a of the cover member 2 to the outer peripheral surface 12a of the metal layer 12. That is, the boundary portion between the metal layer 12 and the cut end portion 11a of the anticorrosive layer 11 is in a state in which the adhesive bond 31 is applied over the entire circumference. Since the adhesive bond 31 can be hardened when applied to an application surface containing oil, the adhesive bond 31 hardens in the applied region to form a gapless seal between a silicon tape 41 described later and the anticorrosive layer 11 and the side surface 2a of the cover member 2, and oil in the oil passage 15 of the OF cable 1 can be prevented from leaking out from the boundary portion.

[0041] 5(a), after the adhesive layer forming step, the upper layer side of the adhesive layer 3 is covered with a self-adhesive silicone tape 41, and the end of the metal layer 12 and the lid member 2 are covered to form the oil leakage prevention layer 4 (oil leakage prevention layer forming step). Specifically, the silicone tape 41 is wrapped around the side surface 2a of the lid member 2 and the corrosion protection layer 11 so as to cover and encase them from the upper layer side. The silicone tape 41 is in liquid-tight contact with the lid member 2 and the corrosion protection layer 11 via the adhesive layer 3.

[0042] As shown in FIG. 5(a), in the oil leakage prevention layer forming step, after the oil leakage prevention layer 4 is formed, plated wires 5 are attached to both ends 4a, 4b of the oil leakage prevention layer 4 to restrain the oil leakage prevention layer 4 in the radial direction. This allows the oil leakage prevention layer 4 to be tightly attached to the metal layer 12, and also allows the oil leakage prevention layer 4 to be tightly attached to the lid member 2 ( Plated Wire The plated wire 5 is provided at both ends 4a, 4b of the oil leakage prevention layer 4, and is wound around the OF cable 1 at least once in the circumferential direction at each of the ends.

[0043] 5(b), the upper layer side of the oil leakage prevention layer 4 made of the silicone tape 41 is covered with a hardening casting tape 6 to reinforce the cable end 1a (cable end reinforcing step). Specifically, the casting tape 6 is wrapped around the upper layer side of the oil leakage prevention layer 4 so as to cover and encase it. The casting tape 6 is provided in a liquid-tight contact with the silicone tape 41. 5(b), the anticorrosive tape 7 is wrapped around the entire upper layer of the casting tape 6 so as to cover and encase it. As a result, the portion reinforced by the casting tape 6 is protected from corrosion by the anticorrosive properties of the anticorrosive tape 7.

[0044] Next, the operation of the OF·CV cable taping terminal processing method will be described in detail with reference to Figs. The OF-CV cable taping terminal processing method according to this embodiment is applied to a cable end 1a of an OF cable 1 having an oil passage 15. The OF-CV cable taping terminal processing method includes a metal layer end exposing step of removing the anticorrosive layer 11 of the OF cable 1 at the cable end 1a to expose the end of the metal layer 12 provided under the anticorrosive layer 11, a cover member attaching step of using a cover member 2 formed so as to cover the cross section of the cable end 1a with the oil passage 15 exposed to cover the cable end 1a in a state in which a part of the side surface of the end of the metal layer 12 is exposed, an adhesive layer forming step of forming an adhesive layer 3 on the side surface of the metal layer 12 and the side surface 2a of the cover member 2 using an adhesive bond 31, and an oil leakage prevention layer forming step of covering the upper layer side of the adhesive layer 3 with a silicone tape 41 to form an oil leakage prevention layer 4 that covers the end of the metal layer 12 and the cover member 2.

[0045] According to the OF-CV cable taping terminal processing method of this embodiment, the oil passage 15 of the cable end 1a is sealed and cable terminal processing that prevents oil leakage can be performed efficiently in a short time by simply attaching the cover member 2 to the metal layer 12 of the cut cable end 1a, and covering the cover member 2 and the cable end 1a on the upper layer side with a silicone tape 41 via an adhesive layer 3 made of an adhesive bond 31 to form an oil leakage prevention layer 4.

[0046] In addition, in this embodiment, the adhesive layer 3 is formed by hardening the adhesive bond 31, so the necessary materials and equipment can be minimized, and the effective time of the adhesive bond 31 can be set arbitrarily, so that the work can be performed quickly by using an adhesive bond 31 with a fast hardening time. Furthermore, this embodiment has the advantage that a large work space is not required, and the work can be performed even in a small place.

[0047] In addition, in the present embodiment, compared to conventional cable termination work involving leadwork using a burner to melt lead, no special techniques are required because lead is not used, and there is no need to secure workers with advanced construction techniques, which improves work efficiency and reduces costs. Moreover, compared to leadwork, terminal processing can be performed without the need to handle fire.

[0048] In the present embodiment, in the oil leakage prevention layer forming process, plated wires 5 are attached to both ends 4a and 4b of the oil leakage prevention layer 4 to constrain the oil leakage prevention layer 4 in the radial direction, thereby bringing the oil leakage prevention layer 4 and the metal layer 12 into close contact with each other and also bringing the oil leakage prevention layer 4 and the lid member 2 into close contact with each other. Plated Wire An installation process is provided. Therefore, the oil leakage prevention layer 4 is radially restrained by the attached plated wire 5. This allows the oil leakage prevention layer 4 and the metal layer 12, and the oil leakage prevention layer 4 and the lid member 2 to be tightly attached to each other, thereby further improving the oil leakage prevention effect of the oil leakage prevention layer 4.

[0049] In addition, this embodiment includes a cable end reinforcing step of covering the upper layer side of the oil leakage prevention layer 4 with a casting tape 6 to reinforce the cable end 1a. Therefore, by providing the casting tape 6 so as to cover and encase the entire oil leakage prevention layer 4, which has the function of preventing oil leakage, from the upper layer side, it is possible to reinforce the cable end 1a covered with the casting tape 6. As a result, the oil leakage prevention layer 4 is protected by the casting tape 6, and it is possible to prevent the oil leakage prevention layer 4 from being damaged or otherwise reduced in function, and it is possible to maintain the oil leakage prevention layer 4 for a long period of time.

[0050] In this embodiment, the silicon tape 41 is a tape member having self-adhesive properties. Therefore, by wrapping a tape member having self-adhesive properties so as to cover the adhesive layer 3, the airtightness provided by the silicon tape 41 can be constantly maintained.

[0051] In this embodiment, the casting tape 6 is a tape member having hardening properties. Therefore, by wrapping a hardening tape member so as to cover the oil leakage prevention layer 4, the installation work can be easily performed and airtightness can be constantly maintained throughout.

[0052] Furthermore, in this embodiment, the adhesive bond 31 has hardening properties and can be hardened when applied to an application surface containing oil, so that the adhesive bond 31 applied to the side surface 2a and metal layer 12 of the cover member 2 hardens to more reliably seal the cable end face 1b.

[0053] The OF-CV cable taping terminal processing method according to this embodiment configured as described above does not require the use of fire or special skills, reduces the effort and cost required for the work, and enables terminal processing work to be performed efficiently in a short time.

[0054] Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. The embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. The embodiments and their modifications include, for example, those that can be easily imagined by a person skilled in the art, those that are substantially the same, those that are within the scope of the equivalents, and the like.

[0055] For example, in the above embodiment, the oil leakage prevention layer 4 made of silicone tape 41 is first installed, and then the casting tape 6 and the corrosion prevention tape 7 are wrapped around it from the upper layer side, but it is also possible to omit either or both of the casting tape 6 and the corrosion prevention tape 7.

[0056] In addition, in this embodiment, the plated wires 5 are provided at both ends 4a, 4b of the oil leakage prevention layer 4, but any member capable of constraining the oil leakage prevention layer 4 in the radial direction will do, and the present invention is not limited to being the plated wires 5. Furthermore, the positions of the constraining members in the oil leakage prevention layer 4 are not limited to both ends 4a, 4b, and the number of attachments of the constraining members is not limited to two. Furthermore, the constraining members may be omitted.

[0057] Furthermore, it is also possible to use a material in which the adhesive layer 3 and the oil leakage prevention layer 4 are integrated, such as a packing tape. In this case, the effort and work required for forming the adhesive layer 3 can be omitted, and the work efficiency can be further improved. [Explanation of symbols]

[0058] 1 OF cable 1a Cable end 1b Cable end face 2 Cover member 2a side 2b Open end 3 Adhesive layer 4 Oil leakage prevention layer 4a, 4b ends 5 Plated Wire 6 Casting tape (second covering member) 7. Anti-corrosion tape 11 Anticorrosive layer (coating) 12 Metal layer (shielding) 12a Outer surface 13 Insulating layer 14 Core wire (conductor) 15 Oil road 31 Adhesive Bond (Chemical) 41 Silicone tape (first covering member)

Claims

1. An OF / CV cable taping terminal processing method applied to an end of a cable having an oil passage, comprising: a metal layer end exposing step of removing the coating of the cable at the end of the cable to expose an end of a metal layer provided under the coating; a cover member attachment process for covering the end of the cable with a cover member formed to cover a cross section of the end of the cable where the oil passage is exposed, while exposing a portion of a side surface of the end of the metal layer; an adhesive layer forming step of forming an adhesive layer on a side surface of the metal layer and a side surface of the lid member using a chemical; an oil leakage prevention layer forming step of covering the upper layer side of the adhesive layer with a first covering member to form an oil leakage prevention layer that covers the end of the metal layer and the lid member; and a plating wire attachment step of winding a plating wire extending linearly around both ends of the oil leakage prevention layer in a radial direction of the oil leakage prevention layer to tightly contact the oil leakage prevention layer and the metal layer, and also to tightly contact the oil leakage prevention layer and the lid member, in the oil leakage prevention layer forming step. The oil leakage prevention layer has protruding regions protruding on both sides from the adhesive layer in the axial direction of the cable, An OF-CV cable taping terminal processing method in which the plated wire is wrapped around only the protruding area of ​​the oil leakage prevention layer that does not cover the adhesive layer from the outer periphery.

2. A cable end reinforcing step of covering an upper layer side of the oil leakage prevention layer with a second covering member to reinforce the end of the cable, 2. The OF-CV cable taping terminal processing method according to claim 1.

3. 2. The OF-CV cable taping terminal processing method according to claim 1, wherein the first covering member is a tape member having self-adhesive properties.

4. 3. The OF-CV cable taping terminal processing method according to claim 2, wherein the second covering member is a tape member having hardening properties.

5. The agent has a hardening property and can harden when applied to an oil-containing application surface.

2. The OF-CV cable taping terminal processing method according to claim 1.

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