JPH0337372B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a cable connection, and more particularly to a method of unwinding and connecting a metal tape wound around a cable onto a cable core connection.

As is well known, various tapes are used as constituent materials for cables.

For example, in a split conductor type cable, in order to reinforce its mechanical strength and improve its roundness, a binder made of metal tape is wrapped around the outer periphery of the conductor and the cables are bound together.

Further, a stainless steel tape is provided around the outer periphery of the lead sheath as a sheath reinforcing layer.

Conventionally, when connecting this type of cable, the tape was first unwound, and after the cable core was connected, the tape was rewound around the outer periphery.

In this case, first one tape is rewound, its ends are bound by wire wrapping or epoxy-impregnated glass tape, and the other tape is wrapped over it, and the ends are bound in the same way. Ta.

By the way, in long submarine cables, the long cable is completed by connecting the cables at a flexible factory joint, but at the factory joint for this purpose, the cable connecting part has the same diameter as the unconnected cable part and is flexible. It is necessary to have sex.

However, in the case of the above-mentioned conventional tape connection method, the diameter of the binding portion of the tape end becomes large, which is not preferable, and there has been a desire to develop an advantageous connection method.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a method for configuring a cable connection portion that does not increase the outer diameter, has excellent flexibility, and has excellent workability.

In other words, the gist of the present invention is to provide a slit having a predetermined width in the tape width direction and length direction in each of the tapes to be connected, and to fit the slits together so that the combined tapes forming an overlap can be connected to each other over their length. The purpose is to absorb the slack by pulling it in the opposite direction along the width direction, and then connect it by welding in that state.

Next, embodiments of the construction method of the present invention will be further described with reference to the accompanying drawings.

In FIG. 1, 1 is a lead-sheathed cable, and 2 and 3 are reinforcing stainless steel tapes wound around its outer periphery.

When connecting this cable 1, first, the stainless steel tapes 2 and 3 are unwound at the cable end portion to a size necessary for the connection work.

The lead-sheathed cable 1 is then jointed with the same diameter in a known manner.

Next, the unwound stainless steel tapes 2 and 3 are unwound around the outer periphery of the connected lead sheath, and at the position where both tapes 2 and 3 overlap, both tapes 2 and 3 are attached as shown in Figure 2. slits 21 and 31 are provided.

The slits 21 are provided in half of the tape 2 in the width direction, and are also spaced apart from each other in the length direction.

The slits 21 and 31 are provided in opposite directions so that they can be combined.

Next, both tapes 2 and 3 are combined by fitting the slits 21 and 31 together, and then tension is applied in the direction of the arrow as shown in FIG. 3, and in this state they are connected by the spotting solution 4.

Thereafter, the outer periphery of this connection part is subjected to anti-corrosion treatment, etc., if necessary, to complete the cable connection part.

The above spot welding work uses stainless steel tape 2,
This can be carried out extremely easily by inserting a thin copper plate into the bottom surface of 3 and using this as an electrode.

The connection of the stainless steel tapes 2 and 3 is not limited to spot welding, and may be soldered, gas welded, or the like.

During welding work, by applying tension to the tapes 2, 3, the tapes 2, 3 can be moved by the distance in the length direction of the slits 21, 31, and the tapes 2, 3 can be moved without causing any slack. It fits tightly onto the cover.

The above explanation has only been about the method of connecting stainless steel tape provided on a lead sheath, but it can also be applied to connecting split conductors with binder tape, etc., and the present invention is not limited to this embodiment. It is not to be interpreted.

As explained above, the construction method of the present invention makes it possible to provide a cable connection part with excellent flexibility without increasing the outer diameter with extremely easy work, and its industrial value is extremely large. There is.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of the construction method of the present invention, FIG. 2 is an explanatory diagram showing an example of a slit provided in a tape, and FIG. 3 is an enlarged explanatory diagram showing an example of a tape connection part. . 1: Cable core, 2, 3: Metal tape, 21,
31: Slit, 4: Welded part.

Claims (1)

[Claims] 1 A cable connection part made by winding tape around a cable core. When connecting a cable, unwind the tape wound around the cable core in advance, and after connecting the cable core, wrap the tape around the outer periphery of the cable core connection part. In the case where the tapes are connected by returning the tapes, each tape in the tape overlap part is provided with a slit having a predetermined width in the tape width direction and length direction, and the slits are combined to form an overlap, and each tape is connected to its length. A method for configuring a cable connection part, which is characterized by absorbing slack by pulling the tape in the opposite direction, and then welding and connecting the tape in that state.