JPH0328133B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a branch connection part of a cable, and more particularly to a cable branch connection part that can be directly connected to electrical equipment such as a pole transformer on an overhead power distribution line, and that can be This invention relates to a cable branch connection section that can be connected to and separated from devices.

Conventionally, overhead power distribution lines are as shown in Figure 1.
A high-voltage underline 5 connects the branch connection 2 of the high-voltage side overhead cable 1 and the pole transformer 4 installed on the utility pole 3, and further connects the branch connection 7 of the low-voltage side overhead cable 6 to the above-mentioned pole transformer 4. A low-voltage underline wire 8 connects the two.

However, as is clear from Figure 1, the overhead power distribution lines constructed in this way have complicated wiring, which poses problems in terms of aesthetics and space occupancy. It was hot.

The present invention has been made in view of the above points, and its first purpose is to eliminate the drawbacks of the prior art described above and to provide an overhead power distribution line that is further improved in terms of aesthetics and space occupied. The second purpose is to provide a cable branch connection part that is useful for configuring cables, and the second purpose is to provide a cable branch connection part that can connect and disconnect electrical equipment and cables under live line conditions. It is in.

That is, the gist of the present invention is to provide a cable connection part main body formed by electrically connecting cables to be connected, one end of which is electrically connected to the cable conductor connection element of the cable connection part main body, and the other end of which is electrically connected to the cable conductor connection element of the cable connection part main body. A branch connection terminal provided to protrude outward from the main body, and an electrical connection terminal provided near the side wall of the desired electrical device so as to be lined up with the branch connection terminal and spaced apart from the branch connection terminal. It consists of a live wire attachment/detachment element consisting of an equipment side extraction terminal, a roughly U-shaped conductive joint, and an insulating cover that covers it.
The live wire attachment/detachment element is in a cable branch connection section characterized in that both ends of the conductive joint are configured to be detachably attached to the branch connection terminal and the electrical equipment side lead-out terminal.

Next, an embodiment of the cable branch connection part of the present invention will be explained with reference to FIGS. 2 to 4 of the attached drawings. Reference numeral 9 denotes a cable connection part body formed by electrically connecting the high voltage side overhead cables 1 and 1 to be connected. This electrically connects the cable conductor connecting element 10, the rubber/plastic insulating molded body 11 covering the element 10, the terminal fitting 13 attached to the conductor 12 of the cable 1, and the connecting element 10. A tube contact 14, a support member 15 for fixing the terminal fitting 13 to the insulating molded body 11, an insulating rubber cylinder 16 placed over the circumference of each of these members, and the insulating rubber cylinder 16 and the cable 1. It is composed of an insulating rubber spacer 17 provided therebetween, and a waterproof cover 18 covering between the cable 1 and the ends of the insulating rubber cylinder 16 and the insulating rubber spacer 17.

19 has one end electrically connected to the cable conductor connection element 10 of the cable connection body 9, and the other end protrudes outward from the body 9, and furthermore, the tip thereof is downwardly L. The branch connection element is provided so as to be bent into an L-shape, and a female terminal portion is formed at the tip of the L-shape. Reference numeral 20 denotes an insulating molded body made of rubber or plastic formed on the circumference of the branch connection terminal 19, and is formed integrally with the insulating molded body 11 covering the cable conductor connecting element 10.

Reference numeral 21 denotes a pole transformer side lead-out terminal provided on the side wall portion 22 of the pole transformer 4 so as to be lined up with the tip of the branch connection terminal 19 and spaced apart from the branch connection terminal 19. Similar to the branch connection element 19 described above, a female terminal portion is formed at the tip on the opposite side to the transformer 4 side. Reference numeral 23 denotes an insulating molded body made of rubber or plastic that covers the above-mentioned lead-out terminal 21, and is fixed to the above-mentioned side wall 22 via a flange 24 formed on its outer periphery.

25 is a live wire attachment/detachment element consisting of a substantially U-shaped conductive joint 26 and an insulating cover 27 made of rubber/plastic that covers it, and as shown in the figure, both ends of the conductive joint 26 are connected to branch connection terminals 19 and It is configured to be detachably attached to the female terminal portion at the tip of the pull-out terminal 21. Reference numeral 28 denotes a handle for insertion and removal provided on the live wire attachment/detachment element 25. However, the live wire detachable element 2
5 to and from the branch connection terminal 19 and the extraction terminal 21, the connection between the branch connection terminal 19 and the extraction terminal 21, and by extension the high voltage side overhead cable 1 and the pole transformer 4, is made live. This makes it possible to separate and connect.

According to the cable branch connection section of this embodiment configured as described above, the cable connection section main body 9
can be directly connected to the pole transformer 4 using the branch connection terminal 19 and the live wire detachable element 25. Therefore, by using this, it is possible to connect the high-voltage down line to the low-voltage down line as shown in FIGS. 5 and 6. The underline can be omitted, the overhead power distribution line can be made very clean, and the aesthetics and space occupied can be further improved.

In addition, as described above, by attaching and detaching the live line attachment/detachment element 25 to the branch connection terminal 19 and the extraction terminal 21, the high voltage side overhead cable 1 and the pole transformer 4 can be separated and connected in a live line state. becomes possible.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a conventional overhead distribution line, Figs. 2 and 3 are explanatory diagrams of an embodiment of the cable branch connection part of the present invention, and Fig. 2 shows the same connection part from the side. Figure 3 is a partially cutaway view of the connection section seen from below, Figure 4 is an overall view of the cable branch connection section of the overhead distribution line seen from below, and Figures 5 and 6 are the cable branch connection of the present invention. FIG. 3 is an explanatory diagram showing two embodiments of an overhead power distribution line constructed using the above-mentioned parts. 1: High-voltage side overhead cable, 3: Utility pole, 4: Pole-mounted transformer, 6: Low-voltage side overhead cable, 9: Cable connection body, 10: Cable conductor connection element, 1
1: Insulating molded body, 12: Cable conductor, 13: Terminal fitting, 14: Tulip contact, 15:
Supporting member, 16: Insulating rubber cylinder, 17: Insulating rubber spacer, 18: Waterproof cover, 19: Branch connection element, 20: Insulating molded body, 21: Pole transformer side outgoing terminal, 22: Side wall part, 23: Insulating molded body, 24:
Flange portion, 25: Live wire attachment/detachment element, 26: Conductive joint, 27: Insulation cover, 28: Handle for insertion/extraction.

Claims (1)

[Claims] 1. A cable connecting part main body formed by electrically connecting cables to be connected, one end electrically connected to the cable conductor connecting element of the cable connecting part main body, and the other end being connected to the outside of the main body. A protruding branch connection terminal, and an electrical equipment side pull-out terminal provided near the side wall of a desired electrical device so as to be lined up with the branch connection terminal and spaced apart from the branch connection terminal. It consists of a live wire attachment/detachment element consisting of a letter-shaped conductive joint and an insulating cover covering it, and the live wire attachment/detachment element allows both ends of the conductive joint to be freely attached and detached to the branch connection terminal and the electrical equipment side extraction terminal. A cable branch connection section comprising: