JPH0534185Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The present invention relates to a pipe hanging type jumper device installed in the tension tower section of a multi-conductor power transmission line, and in particular,
This paper relates to the improvement of a pipe hanging type jumper device for high voltage such as UHV.

[Prior art and its problems]

Generally, a pipe suspension type jumper device has a structure as shown in FIGS. 2 and 3. code 11
13 is a yoke attached to the tip of the insulator link via a connecting fitting 14;
5 is a plurality of retaining clamps attached to the yoke 13 via connecting fittings 16; 17 is each conductor of the multi-conductor power transmission line secured to the retaining clamp 15; and 18 is an upper end supported by the yoke 13. The hanging member 19 is connected to the insulator chain 11 by the hanging member 18.
Two pipe conductors suspended horizontally below the
20 is a plurality of jumper wires connecting the end of the pipe conductor 19 and each conductor 17 of the multi-conductor power transmission line;
1 is a jumper spacer that maintains the distance between the jumper wires 20, and 22 is the two pipe conductors 19.
This is a pipe spacer that maintains the spacing.

In such a jumper device, the pipe conductor 19 and jumper wire 20 are connected as shown in FIG. That is, while the terminal plate 23 is fixed to the end of the pipe conductor 19 in the longitudinal direction by welding or the like, the socket 24 is crimped to the end of the jumper wire 20, and the tightening part 25 of the socket 24 is attached to the terminal plate 23. Connected by bolting to. At this time, jumper wire 2
In order to adjust the slack of the terminal plate 23, the length of the terminal plate 23 is made longer than the length of the tightening part 25 of the socket 24, so that the mounting position of the socket 24 can be changed.

However, in the pipe hanging type jumper device as described above, the terminal plate 23 often protrudes from the tip of the socket 24 to the center of the pipe conductor 19, and in high voltage such as UHV, the protruding portion A
It was discovered that there was a problem with the outbreak of coronavirus.

[Means for solving problems and their effects]

In order to solve the problems of the conventional technology as described above, the present invention uses a pipe conductor suspended horizontally below the insulator chain, and connects the end of the pipe conductor to each conductor of a multi-conductor transmission line. Equipped with jumper wire,
The above pipe conductor and jumper wire are connected by tightening the clamping part of the socket crimped to the end of the jumper wire to the terminal plate fixed to the end of the pipe conductor in the longitudinal direction. The hanging jumper device is characterized in that the length of the terminal plate is a length necessary for a tightening connection, and the length of the tightening portion of the socket is longer than the length of the terminal plate.

In this way, the terminal plate does not protrude from the tip of the socket, so it is possible to prevent the occurrence of corona, and it is also possible to adjust the position of the socket.

〔Example〕

FIG. 1 shows an embodiment of the present invention. This pipe hanging type jumper device shortens the length of the terminal plate 23 fixed to the end of the pipe conductor 19 compared to the conventional one, so that it has the length necessary for a tightening connection (same length as the tightening part of a conventional socket). Conversely, the length of the tightening portion 25 of the socket 24 is made longer than the length of the terminal plate 23 (approximately the same length as the conventional terminal plate). The bolt holes for tightening are on terminal board 2.
3 and the tightening portions 25 of the socket are both formed with the same pitch, but the latter is larger in number. In addition,
The tip of the socket 24 is finished with a gently curved surface as in the conventional case.

The rest of the configuration is the same as the conventional one, so the explanation will be omitted.

[Effect of idea]

As explained above, according to the present invention, in order to adjust the slack of the jumper wire, even if the position of the socket is adjusted, the terminal plate fixed to the end of the pipe conductor is always covered by the socket, and the terminal plate fixed to the end of the pipe conductor is always covered by the socket. Since it no longer protrudes from the tip, it has the effect of preventing the generation of corona.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the connection portion between a pipe conductor and a jumper wire of a pipe hanging type jumper device according to an embodiment of the present invention, and Fig. 2 is a side view showing an example of a conventional pipe hanging type jumper device. 3 is a bottom view of the pipe conductor portion of the same device, and FIG. 4 is a side view showing the connection portion between the pipe conductor and the jumper wire in the same device. 11...Insulator chain, 15...Retaining clamp, 1
7... Each conductor of the multi-conductor power transmission line, 19... Pipe conductor, 20... Jumper wire, 23... Terminal board, 2
4...Socket, 25...Tightening part.

Claims (1)

[Scope of utility model registration request] It is equipped with a pipe conductor suspended horizontally below the insulator chain, and a jumper wire that connects the end of the pipe conductor to each conductor of the multi-conductor transmission line, and the connection between the pipe conductor and the jumper wire is In a pipe hanging type jumper device, which is performed by tightening and connecting the clamping part of a socket crimped to the end of a jumper wire to a terminal board fixed to the end of a conductor in the longitudinal direction, the above-mentioned terminal board is A pipe hanging type jumper device, characterized in that the length of the socket is a length necessary for a tightening connection, and the length of the tightening part of the socket is longer than the length of the terminal plate.