JP7802580B2 - End processing method for OF cable - Google Patents

Description

The present invention relates to a method for terminating oil-filled cables that can reliably prevent oil leakage at the end of a used oil-filled cable.

Oil-filled cables, which are filled with insulating oil, are usually buried underground, and as they age, they are removed from the ground as appropriate.

The removal of these OF cables involves digging several meters into the ground to expose the OF cable, cutting and removing the exposed OF cable, and then filling the ground again, repeating this process to gradually remove the OF cable in the target section. During this type of OF cable removal work, there are cases where the OF cable is left partially underground in areas where excavation is not possible, for example, because a building has been constructed on the excavation site.

In this case, before the ground is backfilled, various temporary simple treatments and processes are applied to the end of the cut oil-filled cable to prevent oil leakage from the end.

When this OF cable cannot be removed and the terminals are left behind, one method of final disposal and processing is lead processing, for example. Lead processing involves melting solder, a lead-tin alloy, over an open flame to form the terminals.

However, lead removal is a specialized task that requires highly advanced skills, and in recent years, the number of technicians capable of performing this task has been decreasing. This has made it difficult to secure workers to remove OF cables. In addition, because lead removal takes time, there is also the problem of a limit to the number of tasks that can be performed per day.

Furthermore, since lead processing involves melting solder using a burner or similar device, it is necessary to ensure the safety of the site and workers, as fire is used.

For this reason, methods of terminating oil-filled cables have been proposed, such as attaching a metal cap to the end, as shown in Patent Document 1, and attaching a cover member to the end, as shown in Patent Document 2.

Specifically, the method described in Patent Document 1 includes the steps of attaching a metal cap to the cut end, inserting a fusion material into the gap between the cut end and the metal cap, heating and melting the fusion material to watertightly join the cut end and the metal cap, and, after attaching the metal cap to the cut end, applying an external force to the outer periphery of the metal cap to deform the metal cap and thereby narrow the gap where the external force acts.

The method disclosed in Patent Document 2 also includes a process of draining insulating oil from the oil-filled cable, a compression process of compressing a compression fitting attached to one end of the oil-filled cable and sealing the one end of the cable with the compression fitting, an attachment process of attaching a cover member to the one end of the oil-filled cable that covers the compression fitting compressed in the compression process and forms a space around the one end, and a filling process of filling a resin material into the cover member attached in the attachment process.

Patent No. 4613723 Patent No. 6076836

However, the method described in Patent Document 1 is the same as conventional leadwork using firearms, and Patent Document 2 has resulted in problems such as the filler not functioning properly at the end of the oil-filled cable, and even when a metal cap or cover is attached, insulating oil gradually leaks through small gaps.

The reason for this is that, for reasons (1) and (2) below, construction must be carried out on-site in a state where insulating oil is constantly leaking from the end of the oil-filled cable.

(1) Even if the insulating oil inside the OF cable is drained in advance, i.e., oil removal work is carried out, it is impossible to completely prevent the insulating oil from leaking out from the end of the OF cable at the site.

(2) When the end of the OF cable is located at the highest point on site, or at the lowest point where sufficient oil removal has been achieved in a steep downward slope pipeline installation with no upward slopes along the way, it is possible to prevent insulating oil from leaking from the end. However, in reality, work is often carried out at sites where there are ups and downs along the way, or where there is not much elevation difference. When working at such sites, work is carried out with a certain amount of insulating oil constantly leaking from the end of the OF cable.

To address the above-mentioned problems with conventional technology, the present invention aims to provide a terminal processing method for oil-filled cables that prevents oil leakage from the ends of used oil-filled cables by enabling various construction work to be carried out while preventing insulating oil from leaking from the ends of the oil-filled cables.

The terminal processing method for oil-filled cables according to the present invention solves the above-mentioned problems by comprising the steps of closing the oil passage of the oil-filled cable at the end of the oil-filled cable and attaching an oil-resistant rubber cap to the end of the oil-filled cable.

According to the present invention, work begins with the process of closing the oil passage of the oil-filled cable, which makes it possible to carry out various subsequent construction work on-site while preventing insulating oil from leaking from the end of the oil-filled cable.

In addition, by attaching an oil-resistant rubber cap to the end of the OF cable, even if insulating oil seeps out from areas other than the closed oil passage, the insulating oil can be reliably contained within the cap.

Furthermore, in the terminal processing method for oil-filled cables according to the present invention, the step of closing the oil passages in the oil-filled cable involves driving a truncated cone-shaped wedge member made of oil-resistant rubber into the oil passage, thereby solving the above-mentioned problem.

This process closes the oil passage of the oil-filled cable with a wedge member, preventing insulating oil from leaking out from the end of the oil passage. Furthermore, by driving a truncated cone-shaped wedge member into the oil passage, it becomes easy to close oil passages of various diameters.

Furthermore, in the case of an oil-filled cable with a pipe-shaped shielding layer, if insulating oil leaks from the space between the cable core and the pipe-shaped shielding layer, the above-mentioned problem was solved by adding a process to fill that space with rags and an oil coagulant.

This process can stop the leakage of insulating oil from the space between the cable core and the pipe-shaped shielding layer.

In this way, by driving a wedge into the oil passage of the oil-filled cable to close it, or by filling the space between the cable core and the pipe-shaped shielding layer with a rag and oil coagulant to seal the space, an oil-resistant rubber cap is attached to the end of the oil-filled cable, preventing insulating oil from leaking out at the end of a used oil-filled cable. This also makes it more secure to attach the rubber cap.

In addition, the above-mentioned problem was solved by adding a process to the end processing method for oil-filled cables according to the present invention, in which a stainless steel band or the like is wrapped around the oil-filled cable to tighten it.

This process also prevents insulating oil from leaking out from areas other than the closed oil passages.

Specifically, when insulating oil is present in the space between the cable core and the pipe-shaped shielding layer and that space is sealed with a rag and oil coagulant, if the OF cable has a soft shielding layer, wrapping a stainless steel band or similar around the corrosion protection layer of the OF cable to tighten it prevents the insulating oil from seeping out from the rag and oil coagulant sealing the space. It can also prevent the leakage of insulating oil that has soaked into insulating paper, etc.

In addition, the process of wrapping a stainless steel band or the like around the OF cable to tighten it involves wrapping a stainless steel band or the like around the shielding layer of the OF cable to tighten it, thereby solving the above-mentioned problem.

For example, if the OF cable has a hard shielding layer made of stainless steel, aluminum, or other material, and insulating oil is seeping out from areas other than the oil passage, it is necessary to squeeze the hard shielding layer with greater force.

Therefore, in the case of an oil-filled cable with a hard shielding layer, removing the corrosion-resistant layer from the oil-filled cable and wrapping a stainless steel band or similar directly around the hard shielding layer and tightening it can more reliably prevent insulating oil from seeping out from the rag and oil coagulant. It can also more reliably prevent the leakage of insulating oil that has soaked into insulating paper, etc.

Furthermore, in the method for terminal processing of oil-filled cables according to the present invention, the step of attaching an oil-resistant rubber cap to the end of the oil-filled cable involves wrapping oil-resistant tape around the oil-filled cable to a thickness that roughly matches the inner diameter of the cap's opening, aligning the cap's opening with this oil-resistant tape, and tightening the periphery of the cap's opening with a band at the position of the oil-resistant tape, thereby solving the above-mentioned problem.

This process allows the inner circumferential surface of the cap opening to be abutted against the oil-resistant tape, which has a thickness roughly matching the inner diameter of the cap opening, at the end of the oil-filled cable. In this state, the periphery of the cap opening is tightened with a band, so that the inner circumferential surface of the cap opening bites firmly into the oil-resistant tape, allowing the end of the oil-filled cable to be completely sealed with the oil-resistant rubber cap.

As a result, even if insulating oil seeps out from a part of the end of the OF cable other than the closed oil passage, the insulating oil can be reliably contained within the cap.

And because the oil-resistant rubber cap is securely fixed to the end of the oil-filled cable, the top plate of this oil-resistant rubber cap also serves to hold down the wedge member driven into the oil passage, preventing it from slipping out.

Furthermore, in the terminal processing method for oil-filled cables according to the present invention, the above-mentioned problem is solved by adding a step of attaching a metal cap filled with an oil-resistant caulking agent to the oil-resistant rubber cap attached to the end of the oil-filled cable, and wrapping oil-resistant tape around the periphery of the opening of the metal cap to secure it in place.

This process ensures that even if a small amount of insulating oil leaks from the oil-resistant rubber cap, the insulating oil will not leak out.

In addition, oil-resistant tape is wrapped around the rim of the metal cap's opening to secure it in place, preventing the oil-resistant rubber cap from deteriorating due to ultraviolet rays or being affected by groundwater.

This makes it possible to provide durability of more than 30 years, which is the lifespan of oil-filled cables.

In addition, the above-mentioned problem is solved by adding a step to the end processing method for oil-filled cables according to the present invention, in which a metal cap attached to the end of the oil-filled cable is fixed by wrapping a scratch-resistant tape around it.

This process maintains the rigidity of the ends of the OF cable, so that even if excavation work is carried out several years from now, there is no risk of the ends being damaged. Furthermore, even if a shovel or similar tool were to hit the end during excavation work, there is no risk of the ends being damaged.

Furthermore, in the terminal processing method for oil-filled cables according to the present invention, the above-mentioned problem is solved by adding a step of covering the damage-resistant tape wrapped around the end of the oil-filled cable with a trough.

This process allows workers to become aware of the presence of the end of the OF cable if the cutting edge of a hydraulic shovel hits it during excavation work before the end is damaged.

The oil-filled cable termination method of the present invention begins with the process of closing the oil passages in the oil-filled cable, which prevents insulating oil from leaking from the end of the oil-filled cable at the site, allowing subsequent work, such as covering the end with an oil-resistant rubber cap, to be carried out. Furthermore, the protection of the metal cap placed on top of that ensures that oil leakage from the end of a used oil-filled cable can be reliably prevented for an extended period of time.

In addition, when the oil passage of the oil-filled cable is closed, a stainless steel band or similar is wrapped around the oil-filled cable to constrict it, preventing insulating oil from seeping out from areas other than the closed oil passage.

Furthermore, even if insulating oil seeps out from areas other than the closed oil passages, the insulating oil can be reliably contained within the oil-resistant rubber cap. In addition, because a metal cap filled with oil-resistant caulking agent is attached to the oil-resistant rubber cap, it is possible to reliably prevent the insulating oil from leaking outside the metal cap.

In addition, the durability of the oil-filled cable at its end can be maintained by wrapping damage-resistant tape around the metal cap and covering it with a trough.

In addition, the method for processing the terminals of oil-filled cables according to the present invention does not use open flames, which has the added benefit of improving work safety and efficiency.

1A to 1C are explanatory diagrams clearly illustrating each step in a terminal processing method for an OF cable. 1 is a cross-sectional view of a three-core OF cable to be subjected to terminal processing. 1 is a cross-sectional view of a single-core OF cable to be subjected to terminal processing. 1 shows the process of closing an oil passage of an oil-filled cable, where (a) is an oblique view showing the state before a wedge member is driven into the oil passage, (b) is an oblique view showing the state after the wedge member has been driven into the oil passage, and (c) is an oblique view showing the state after the rear end of the wedge member protruding from the oil passage is cut off. This shows the process of attaching a cap to the end of an oil-filled cable, where (d) is an oblique view showing the state before oil-resistant tape is wrapped around the end of the oil-filled cable, (e) is an oblique view showing the state after oil-resistant tape has been wrapped around the end of the oil-filled cable and the cap has been applied, and (f) is an oblique view showing the state after the periphery of the opening of the cap has been tightened with a band. This shows the process of attaching a metal cap to the end of an OF cable, where (g) is an oblique view showing the state in which a metal cap filled with oil-resistant caulking agent is attached to the cap, (h) is an oblique view showing the state before oil-resistant tape or the like is wrapped around the attached metal cap, and (i) is an oblique view showing the state in which oil-resistant tape has been wrapped around the attached metal cap. The figures show the process of wrapping tape around the end of an OF cable to secure it in place and the process of covering it with a trough. (j) is an oblique view showing the end of the OF cable secured by wrapping a damage-resistant tape around it, and (k) is an oblique view showing the end of the OF cable covered with an inverted trough. 1 is a perspective view showing a state in which a stainless steel band or the like is being wound around and tightened around the corrosion-resistant layer of a single-core OF cable in a process of winding a stainless steel band or the like around the OF cable and tightening it. FIG. This is an oblique view showing the state in which the corrosion-resistant layer of a single-core OF cable is stripped off and a stainless steel band or the like is wound around and tightened around a hard pipe-shaped shielding layer in the process of winding a stainless steel band or the like around an OF cable.

Below, a preferred embodiment of a method for terminating oil-filled cables is described in detail with reference to the drawings.

As shown in Figure 1, the terminal processing method for oil-filled cables according to the present invention comprises process A of closing the oil passages in the oil-filled cable, process B of attaching an oil-resistant rubber cap to the end of the oil-filled cable, process C of attaching a metal cap to the end of the oil-filled cable, process D of wrapping tape around and securing the end of the oil-filled cable, and process E of covering the end of the oil-filled cable with a trough.

Of the above steps, the most notable features of this invention are process A, which closes the oil passage of the oil-filled cable, and process B, which attaches an oil-resistant rubber cap to the end of the oil-filled cable.

These two processes make it possible to prevent insulating oil from leaking from the end of the OF cable at the site, allowing subsequent work to be carried out. Furthermore, even if insulating oil does leak from areas other than the closed oil passages, the insulating oil can be reliably contained within the oil-resistant rubber cap.

The terminal treatment method for oil-filled cables according to the present invention includes step A, which closes the oil passages in the oil-filled cable. However, if insulating oil is seeping out from areas other than the oil passages, step a1, which packs an oil coagulant and a rag into a designated space in the oil-filled cable, and step a2, which wraps a stainless steel band around the oil-filled cable and tightens it, may also be performed as needed, as shown in Figure 1.

Types of oil-filled cables 100 that can be subjected to terminal processing according to the present invention include, for example, a three-core oil-filled cable 100 having three oil passages 101 as shown in Figure 2, and a single-core oil-filled cable 100 having a single oil passage 101 as shown in Figure 3.

As shown in Figure 2, the three-core oil-filled cable 100 has three conductors 103 with insulating paper 102, surrounded by three oil passages 101. The insulating paper 102 is placed around the conductors 103, forming a cable core 109. The cable cores 109 and oil passages 101, which exist in three locations, are enclosed in interposing paper 104, and a shielding layer 105 and a corrosion-resistant layer 106 are placed on the outside of the interposing paper 104.

As shown in Figure 3, the single-core oil-filled cable 100 has an oil passage 101 in the center, surrounded by a conductor 103 and insulating paper 102, forming a cable core 109. Also, a shielding layer 105, a reinforcing band 107, and a corrosion-resistant layer 106 are arranged around the cable core 109.

As shown in Figure 3, in the single-core oil-filled cable 100, a predetermined space 110 exists between the cable core 109 and the metal sheathed shielding layer 105, and this space 110 is also filled with insulating oil. The shielding layer 105 is formed into a pipe shape using a stainless steel sheath, aluminum sheath, etc.

While any of the oil-filled cables 100 can be subjected to the terminal processing of the present invention, for convenience, the basic terminal processing steps A, B, C, D, etc. will be explained using a three-core oil-filled cable 100 as an example, and the optional processing steps a1 and a2 will be explained using a single-core oil-filled cable 100 as an example.

(Process of closing oil passage of oil-filled cable)
In step A of closing the oil passage 101 of the oil-filled cable 100, a means of driving a truncated cone-shaped wedge member 1 into the oil passage 101 is used, as shown in FIGS. 4(a) and 4(b).

The truncated cone-shaped wedge member 1 has a predetermined length and is made of oil-resistant rubber such as vulcanized rubber.

Then, as shown in Figure 4(b), the tip end of the wedge member 1 is inserted into the oil passage 101 of the oil-filled cable 100, and the rear end of the wedge member 1 is driven in using a hammer 2 or the like.

Next, as shown in Figure 4(c), the rear end of the wedge member 1 protruding from the oil passage 101 is cut to the desired length.

The above procedure closes the oil passage 101 of the OF cable 100 with the wedge member 1. However, if insulating oil is leaking from parts of the OF cable 100 other than the oil passage 101, as necessary, as shown in Figure 1, process a1 may be performed as appropriate to pack an oil coagulant and a rag into a specified space in the OF cable 100, and process a2 may be performed as appropriate to wrap a stainless steel band around the OF cable and tighten it.

(The process of packing oil coagulant and rags)
Specifically, as shown in Figure 3, a predetermined space 110 exists between the cable core 109 and the shielding layer 105 of the single-core OF cable 100, and in the event that the insulating oil filled in this space 110 leaks out, an oil coagulant and a rag are stuffed into this space 110.

Furthermore, even in the case of a three-core oil-filled cable 100, if a predetermined space 110 exists between the cable core 109 and the shielding layer 105, this space 110 may be filled with an oil coagulant and a rag.

(The process of wrapping a stainless steel band around the product and squeezing it)
In the process a2 of wrapping a stainless steel band 10 or the like around and tightening this OF cable 100, for example, in the single-core OF cable 100 shown in Figure 3, an oil coagulant and a rag are stuffed into the space 110 between the cable core 109 and the shielding layer 105 to prevent oil leakage. In order to reliably prevent this oil leakage, the single-core OF cable 100 is further wrapped around and tightened with a stainless steel band 10 or the like, as shown in Figure 8.

Also, in the case of a lead-sheathed cable with a soft shielding layer 105, if insulating oil is seeping out from areas other than the oil passage 101, it is a good idea to wrap a stainless steel band 10 or the like around the corrosion-resistant layer 106 of the lead-sheathed cable to tighten it. In this case, wrapping multiple stainless steel bands 10 or the like will fully exert the tightening effect.

Furthermore, in the single-core oil-filled cable 100 shown in Figure 3, if the cable has a hard pipe-shaped shielding layer 105 made of stainless steel, aluminum, or the like, and insulating oil is seeping out from areas other than the oil passage 101, it is necessary to squeeze the hard shielding layer 105 with greater force.

Therefore, in the case of an OF cable with a hard shielding layer 105, it is recommended to remove the corrosion-resistant layer 106 from the OF cable and wrap a stainless steel band 10 or the like directly around the shielding layer 105 to tighten it, as shown in Figure 9. The tightening of the stainless steel band 10 or the like can be done using, for example, a hydraulic tightening machine.

By wrapping a stainless steel band 10 or the like around the above-mentioned OF cable 100 and tightening it, process a2 can prevent, as necessary, the leakage of insulating oil from areas other than the oil passage 101, such as the leakage of insulating oil filled in the specified space 110 between the cable core 109 and the shielding layer 105 of the single-core OF cable 100, or the leakage of insulating oil that has soaked into the insulating paper 102.

In addition, even in the three-core oil-filled cable 100, the leakage of insulating oil from areas other than the oil passage 101, such as leakage of insulating oil that has soaked into the insulating paper 102, can be prevented as necessary.

(Step of attaching an oil-resistant rubber cap to the end of the OF cable)
In process B of attaching an oil-resistant rubber cap 3 to the end of the OF cable 100, first, as shown in Figures 5(d) and (e), an oil-resistant tape 4 is wrapped around the OF cable 100 so that the thickness of the tape approximately matches the inner diameter of the opening of the cap 3.

Then, as shown in Figures 5(e) and 5(f), the opening of the oil-resistant rubber cap 3 is placed against the wrapped oil-resistant tape 4, and the periphery of the opening of the cap 3 is tightened with a band 5 at the position of the oil-resistant tape. As a result, the inner surface of the opening of the oil-resistant rubber cap 3 bites firmly into the oil-resistant tape 4, allowing the end of the oil-resistant cable 100 to be completely sealed by the oil-resistant rubber cap 3.

The caps 3 are made of oil-resistant rubber such as vulcanized rubber. Since manufacturing a large number of oil-resistant rubber caps 3 to fit all sizes of OF cables 100 would increase costs, three to five different sizes of caps 3 are prepared, and the size is adjusted by adjusting the thickness of the oil-resistant tape 4 to be wrapped around them. A stainless steel band 10, for example, is used as the band 5 that tightens the periphery of the opening of the oil-resistant rubber cap 3.

The oil-resistant rubber cap 3 is intended to securely contain the insulating oil within the cap 3 and prevent it from leaking out if the insulating oil seeps out from any part other than the oil passage 101 closed by the wedge member 1. However, if a large amount of insulating oil is expected to seep out, it is advisable to wrap oil-resistant tape 4 around multiple points on the OF cable 100 and tighten the periphery of the opening of the oil-resistant rubber cap 3 with multiple bands 5.

In addition, when the oil-resistant rubber cap 3 is attached to the end of the oil-filled cable 100, the rear end of the wedge member 1 protruding from the oil passage 101 is pressed down by the inner wall of the cap 3, preventing the wedge member 1 driven into the oil passage 101 from falling out and more reliably preventing the leakage of insulating oil.

Specifically, a hard plate made of metal or the like is provided inside the top plate of the oil-resistant rubber cap 3, and this metal plate abuts against the wedge member 1, holding down the wedge member 1 that closes the oil passage 101 to prevent it from coming loose.

(Step of attaching a metal cap to the end of the OF cable)
In process C of fitting a metal cap 6 to an oil-resistant rubber cap 3 attached to the end of the OF cable 100, first, as shown in Figure 6 (g), the metal cap 6 filled with an oil-resistant caulking agent 7 is fitted to the oil-resistant rubber cap 3.

Then, as shown in Figures 6(h) and 6(i), oil-resistant tape 4 is wrapped around the periphery of the opening of the metal cap 6 to secure the metal cap 6 to the cap 3.

(Process of wrapping tape around the end of the OF cable to secure it)
Step D of wrapping and fixing the end of the oil-filled cable 100 with tape is a measure to fix the metal cap 6 with a self-fusing tape when the metal cap 6 is not sufficiently fixed with the oil-resistant tape 4 .

Specifically, as shown in Figures 6(i) and 7(j), a silicone self-fusing tape (8), which is resistant to external damage and waterproof, is wrapped around and fixed to a metal cap 6 attached to the end of the OF cable 100.

(Process of covering the end of the OF cable with a trough)
Process E of covering the end of the OF cable 100 with a trough involves inverting the trough 9 and covering the damage-resistant tape 8 wrapped around the end of the OF cable 100, as shown in Figure 7(k).

As described above, the terminal processing method for oil-filled cables according to the present invention is useful as a terminal processing method for oil-filled cables that still have insulating oil inside, and is particularly suitable for processing the terminals of oil-filled cables that are buried and left underground.

A...Process of closing the oil passage of the oil-filled cable a1...Process of packing oil coagulant and rags a2...Process of wrapping and tightening a stainless steel band B...Process of attaching an oil-resistant rubber cap to the end of the oil-filled cable C...Process of attaching a metal cap to the end of the oil-filled cable D...Process of wrapping tape around and fixing the end of the oil-filled cable E...Process of covering the end of the oil-filled cable with a trough

REFERENCE SIGNS LIST 100...OF cable 101...Oil passage 102...Insulating paper 103...Conductor 104...Intervening paper 105...Shielding layer 106...Anti-corrosion layer 107...Reinforcing band 109...Cable core 110...Space

1...Wedge member 2...Hammer 3...Oil-resistant rubber cap 4...Oil-resistant tape 5...Band 6...Metal cap 7...Oil-resistant caulking agent 8...Damage-resistant tape 9...Trough 10...Stainless steel band

Claims (9)

A terminal processing method for an oil-filled cable, comprising the steps of: closing the oil passage of the oil-filled cable at the end of the oil-filled cable; and attaching an oil-resistant rubber cap to the end of the oil-filled cable. The method for processing an oil-filled cable termination according to claim 1, wherein the step of closing the oil passage of the oil-filled cable uses a means for driving a truncated cone-shaped wedge member made of oil-resistant rubber into the oil passage. A terminal treatment method for an oil-filled cable as described in claim 1 or 2, further comprising the step of filling a rag and an oil coagulant into a space between the cable core and the pipe-shaped shielding layer in the event that insulating oil leaks from the space between the cable core and the pipe-shaped shielding layer. The method for processing the end of an oil-filled cable according to any one of claims 1 to 3, further comprising the step of wrapping a stainless steel band or the like around the oil-filled cable to tighten it. The method for processing an oil-filled cable termination according to claim 4, wherein the step of wrapping a stainless steel band or the like around the oil-filled cable and constricting it comprises wrapping a stainless steel band or the like around the shielding layer of the oil-filled cable and constricting it. The method for processing an oil-filled cable termination described in claim 1, wherein the process of attaching an oil-resistant rubber cap to the end of the oil-filled cable involves wrapping oil-resistant tape around the oil-filled cable to a thickness that roughly matches the inner diameter of the cap's opening, placing the cap's opening against the oil-resistant tape, and tightening the periphery of the cap's opening with a band at the position of the oil-resistant tape. The method for processing an oil-filled cable termination as recited in claim 1 or 6 further includes the steps of attaching a metal cap filled with an oil-resistant caulking agent to the oil-resistant rubber cap attached to the end of the oil-filled cable, and wrapping and securing oil-resistant tape around the periphery of the opening of the metal cap. The method for processing the end of an oil-filled cable according to claim 7, further comprising the step of wrapping and securing a damage-resistant tape around the metal cap attached to the end of the oil-filled cable. The method for processing an oil-filled cable termination described in claim 8 further includes the step of covering the damage-resistant tape wrapped around the end of the oil-filled cable with a trough.