JPH0242007Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Field of Application" The present invention relates to an improvement in split wires used for connecting overhead power transmission lines.

``Prior art'' When overhead power transmission lines are installed using the prefabricated or semi-prefabricated overhead line construction method, multiple spans are extended at once, taking into consideration that the lines will be connected to an insulator chain after the extension is completed. In some cases, electric wires for each span length are connected and extended using split wires. That is, FIG. 3 shows the situation, in which the electric wire 12 is cut to the length of the overhead wire,
At the end of 12, a retaining clamp 10,
10 is crimped, the protectors 11, 11 are covered, and in this state, the split wire 1' is connected to both ends, and the wire is extended while passing through a metal wheel.

Therefore, the length of the split wire 1' is generally selected to be approximately twice the length of the insulator chain of the steel tower to be wired.

"Problems to be Solved by the Invention" However, the length of the insulator chain is not constant and varies depending on the size of the wire, the transmission voltage, the number of conductors, etc. Therefore, in the past, split wires as shown in Figure 2 were created each time according to the length 1'a required for the overhead wire, and the wires were discarded after the overhead wire work was completed. . but,
This is extremely uneconomical, and the second
It was also extremely troublesome to manufacture the split wire shown in the figure.

"Means for Solving Problems" In view of the above circumstances, the present invention aims to provide a split wire that is not disposable, but can be reused many times even if the location of the overhead wire changes. A power transmission line overhead line consisting of a plurality of connecting units connected for the required length, each having a connecting unit that can be connected and disconnected at each end and having an elongated shape that can pass through a metal wheel. It is on the split wire.

"Example" The following is a description based on an example. Figure 1 shows
FIG. 1A shows a plan view and FIG. 1A shows a front view of a split wire 1 according to the present invention. The split wire 1 is not composed of a single wire as in the conventional example, but is composed of a plurality of connected unit bodies 2 to n.
Each of the connecting units 2 to n is configured as a connecting means whose end portions can be connected or detached. That is, in the case of Fig. 1, the connecting means is configured to connect the eye and the clevis with a pin as shown in the figure, and by attaching and detaching the pin, the desired number of connecting units can be assembled. It can be connected or detached. Therefore, for one overhead line work, a length Ia is used, and for the next overhead line work, a longer one is used.
When the length Ib becomes necessary, a connecting unit may be additionally connected to Ia and used as the length Ib. Again in another overhead line job, this time a shorter length
When an IC is needed, the pin can be removed and the entire IC can be used. In the above embodiments, the eye and the clevis are used as the connecting means, but the connecting means is not limited to this, and it goes without saying that any suitable means can be selected, such as a hook.

As shown in FIG. 4, clevises are attached to both ends of a short wire 1'' to form a connecting unit of length Ic, and a plurality of these can be connected by eyes to the required length. This has the advantage that the weight can be reduced and it is more economical than when the connecting unit is constructed only of metal fittings as shown in FIG.

``Effects of the invention'' As mentioned above, the split wire according to the invention can be freely selected to the required length and used as many times as needed, rather than being used only once as in the past. Not to mention its economic efficiency,
The labor-saving benefits of its flexibility of application are significant.

[Brief explanation of the drawing]

Fig. 1 shows a split wire according to the present invention, A shows a plan view thereof, B shows a front view, Fig. 2 shows a front view of a conventional split wire, and Fig. 3 shows a front view of the split wire. 2 is an explanatory view of installing the split wire in the case of constructing an overhead line using the split wire shown in FIG. 2, and FIG. 4 is a front view of the split wire according to another embodiment of the present invention. 1 , 1': split wire, 2 to n: connecting unit.

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of connecting units each having a connecting means that can be connected and disconnected at each end and having an elongated shape that can pass through a metal wheel are connected by the required length. Split wire for overhead power transmission lines. (2) The split wire according to claim 1, wherein the connecting unit is a short wire having connecting means at both ends. (3) The split wire according to claims 1 and 2 of the utility model registration claim, wherein the connecting means is an eye and a clevis. (4) The split wire according to claims 1 and 2 of the utility model registration claim, wherein the connecting means is a hook.