JPH0328134B2 - - Google Patents

Description

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

Conventionally, overhead power distribution lines are as shown in Figure 1.
The branch connection part 2 of the high voltage side overhead cable 1 and the pole transformer 4 installed on the utility pole 3 are connected by a high voltage underline 5, and the branch connection part 7 of the low voltage side overhead cable 6 and the above pole transformer 4 are connected. 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.Therefore, improvements have been requested for some time. 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 that is provided to protrude outward from the main body and further has an insertion hole formed at the other end for passing a conductive connection rod (described later); an electrical equipment side pull-out terminal that is provided so that its center axis coincides with the insertion hole of the terminal and is spaced apart from the branch connection terminal;
The branch connection terminal passes through the insertion hole at the other end and electrically connects its own tip to the electrical equipment side extraction terminal, thereby electrically connecting the branch connection terminal and the electrical equipment side extraction terminal. The cable branch connection section comprises a conductive connection rod that is connected to the cable branch connection section, and the conductive connection rod is 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 section of the present invention will be described with reference to FIGS. 2, 3, and 5 of the accompanying drawings. Note that FIG. 2 shows a cross section along the line A-A' in FIG. 3, and therefore, in FIG. However, the other cable is assembled into the cable connecting part main body on the other side, and the entire structure is similar to the structure described below.

Now, in the figure, 9 is the cable connection body formed by electrically connecting the low-voltage side overhead cables 6, 6 to be connected, and this is the cable conductor connection element (actually, this is in the direction perpendicular to the drawing). (10 in the figure indicates one of the terminal parts.) 11, and a rubber band that covers the element 11. A plastic insulating molded body 12, a terminal fitting 14 attached to the tip of the conductor 13 of the cable 6, and a tube contact 16 that electrically connects the terminal portion 10 of the cable conductor connecting element 11 and the terminal fitting 14. , a support member 17 for fixing the terminal fitting 14 to the insulating molded body 12 , an insulating rubber cylinder 18 covering each of these members, and the insulating rubber cylinder 1
8 and the cable 6 , and a waterproof cover 20 that covers between the cable 6 and the ends of the insulating rubber cylinder 18 and the insulating rubber spacer 19 .

21 is provided with one end electrically connected to the cable conductor connection element 11 of the cable connection body 9 and the other end protruding outward from the body 9, and A branch connection terminal having an insertion hole 22 formed at its tip for passing a conductive connection rod (described later); 23 is a rubber formed on the circumference of the branch connection terminal 21 except for the insertion hole 22 of the terminal 21; - An insulating molded body made of plastic, which is integrally formed with the previous insulating molded body 12. 24 is a side wall portion 25 of the pole transformer 4
In this case, a pole-mounted transformer-side lead-out terminal is provided with its center axis aligned with the insertion hole 22 of the branch connection terminal 21 and spaced apart from the branch connection terminal 21, and furthermore, this is connected to the branch connection terminal 21. A female terminal portion 26 having approximately the same inner diameter as the insertion hole 22 is provided on the side.
is formed. Reference numeral 27 denotes an insulating molded body made of rubber or plastic provided on the periphery of the above-mentioned lead-out terminal 24, and this is a flange portion 2 formed on the outer periphery.
It is fixed to the side wall portion 25 via 8. 2
9 penetrates the insertion hole 22 of the branch connection terminal 21 and pulls out its tip to connect to the female terminal 26 of the terminal 24.
electrically connected to the branch connection terminal 2.
1 and the lead-out terminal 24 are electrically connected to each other; 30 is an insulating lid made of rubber or plastic formed integrally with the connecting rod 29; 31 is a handle formed on the lid 31; be. 32 is a rubber packing, and 33 is a support body for fixing the cable connection portion main body 9 to the side wall portion 25 of the pole transformer 4.

According to the cable branch connection part A of the present embodiment configured as described above, the cable connection part main body 9 can be directly connected to the pole transformer 4 by the branch connection terminal 21 and the conductive connection rod 29. Therefore, by using this, the low-voltage underline can be omitted as shown in FIG. 4, and the overhead power distribution line can be greatly reduced, resulting in further improvements in terms of aesthetics and occupied space.

In addition, the conductive connecting rod 29 is connected to the branch connecting terminal 21.
The insertion hole 22 and the female terminal portion 26 of the pull-out terminal 24
By inserting and removing the terminal into and out of the terminal, it is possible to easily separate and connect between the branch connection terminal 21 and the pull-out terminal 24, and by extension, between the low voltage side overhead cable 6 and the pole transformer 4 in a live wire state. Become.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a conventional overhead distribution line, FIG. 2 is an explanatory diagram of an embodiment of the cable branch connection part of the present invention,
Fig. 3 is a bottom view thereof, Fig. 4 is an explanatory diagram of an embodiment of an overhead distribution line constructed using the cable branch connection part of the present invention, and Fig. 5 is a view of the cable branch connection part of the above-mentioned overhead distribution line from below. This is an overall diagram. 3: Utility pole, 4: Pole-mounted transformer, 6: Low-voltage side overhead cable, 9: Cable connection body, 11: Cable conductor connection element, 12: Insulating molded body, 13: Cable conductor, 14: Terminal fitting, 16: Tulip contact, 17: Support member, 18: Insulating rubber cylinder, 19: Insulating rubber spacer, 20: Waterproof cover, 21: Branch connection terminal, 22: Insertion hole, 23:
Insulating molded body, 24: Pole transformer side outgoing terminal, 2
5: Side wall portion, 26: Female terminal portion, 27: Insulating molded body, 28: Flange portion, 29: Conductive connecting rod, 3
0: Insulating lid, 31: Handle, 32: Rubber gasket,
33: Support.

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 branch connection terminal that is provided in a protruding manner and further has an insertion hole formed at the other end thereof through which a conductive connection rod (described later) is passed; An electric equipment side pull-out terminal that is aligned and provided at a distance from the branch connection terminal, and the other end of the branch connection terminal is penetrated through the insertion hole and its own tip is connected to the electric equipment side pull-out terminal. The conductive connecting rod is electrically connected to the branch connecting terminal and the electrical equipment side lead-out terminal, and the electrically conductive connecting rod is connected to the branch connecting terminal and the electrical equipment side pull-out terminal. A cable branch connection part characterized in that it is configured to be detachably attached to a lead-out terminal.