JPH0336171Y2 - - Google Patents

Description

[Detailed explanation of the invention] Purpose of the invention (industrial application field) This invention is a connection of a bypass route that can easily perform the work of installing a bypass circuit on a power distribution line to bypass a power outage construction section. It's about structure.

(Conventional technology) Conventionally, we have reduced the scope of work outages and shortened the time of work outages, improved customer services, facilitated the implementation of power outage work to promote the rationalization of power distribution work, ensured the safety of work, and further stopped work. In order to reduce electricity consumption and costs due to a decrease in power outage notification customers, a manual switch for temporary construction was installed in advance near the power outage work site to form a bypass circuit for the construction section, and the work was completed. Later, the bypass circuit will be removed.

(Problem that the invention aims to solve) However, in the past, both ends of the bypass circuit were attached to the distribution line using clamp devices, but this was done by covering the distribution line, which caused damage to the distribution line and caused damage to the distribution line. Attachment of the clamp device to the distribution line was not only difficult because the distribution line was swayed by wind, etc., but also had the problem that if the clamp was attached under such conditions, the connection state would become unstable. .

Structure of the invention (Means for solving the problems) This invention solves the problems mentioned above.
Clamping pieces are arranged in parallel on the side surface of the proximal end of the connecting terminal that extends to the side of the switch, and a contact that is inserted and removed between the clamping piece and the side surface of the connecting terminal is provided at the distal end of the bypass cable. The contactor is provided with a locking part that locks onto the upper part of the connection terminal and suspends the bypass cable.

(Function) This invention employs the above-described means, so that when the contactor 23 contacts the connection terminal 15, the power supply side and load side power distribution cables and the bypass cable are electrically connected.

In addition, the locking portion 23a of the contactor 23 is connected to the connecting terminal 15.
When the bypass cable 21 is hooked onto the upper part of the connection terminal 15, the bypass cable 21 is suspended while maintaining the connected state to the connection terminal 15, and the contact 23 is connected to the clamping piece 16 and the connection terminal 1.
The connection state is stabilized by being inserted between the 5th side and the 5th side.

(Example) Hereinafter, an example of this invention will be described in detail with reference to the drawings.

The frame 2 of the switch AS, which is attached to a utility pole arm (not shown) via a support 1, has a pair of body insulators G to which the electrode side and load side distribution cables (not shown) are connected. It is supported and fixed downward. Further, the frame body 2 includes an upper frame 2a and a frame 2 disposed at a predetermined distance from the upper frame 2a.
A lower frame 2b connected via a book support rod 3;
It is constituted by a pair of sliding guide rods 4 which are similarly connected to both upper and lower frames 2a and 2b rods between the support rods 3.

Both ends of a movable body 5 are supported by the sliding guide rod 4 so as to be movable up and down, and a movable insulator 6 is fixed to the lower surface of the movable body 5 so as to hang down at a position corresponding to the main body insulator G. There is. Further, the movable body 5 can be opened and closed up and down by an operating handle 7 via an operating mechanism (not shown).

A fixed electrode 9 is fixed to the inner top part of the main body insulator G via a fitting 8, and the fixed electrode 9
A connecting piece 1 supported by a mounting bracket 8 is attached to the base end of the
0 is connected. The lower end of the connecting piece 10 extends upward and supports an arc extinguishing chamber 11 disposed below the fixed electrode 9. The outer part of the main body insulator G, that is, the connection terminal 15 described later
The lower portion of the side portion is open, and a mounting protrusion 12 that protrudes downward is formed on the lower surface of the side portion. The mounting protrusion 12 has a bottomed cylindrical support member 1.
After 3 is fitted onto the outside, it is fixed with adhesive by cementing. A mounting bolt 14 extending downward is implanted in the support member 13.
4, the base end of the connecting terminal 15 is tightened with the nut 14a, so that the connecting terminal 15 is connected to the main body insulator G.
Fixed.

A clamping piece 16 is provided on the side surface of the base end of the connection terminal 15.
is riveted, and its tip extends parallel to the side of the connecting terminal 15 and extends outward. A support plate 17 made of an insulating synthetic resin material is attached to the lower part of the arc extinguishing chamber 11 so as to extend outwardly. A cover plate 19 made of synthetic resin is rotatably provided. The cover plate 19 is normally connected to the connection terminal 15 by having its side lower surface locked with the upper surface of a locking protrusion (not shown) protruding from the inner surface of the main body insulator G.
It is placed so as to cover the area from below. Further, when the tip of the cover plate 19 is rotated downward, the engagement with the locking protrusion is released, thereby opening the lower part of the connection terminal 15, and the clamping piece 1
6 is exposed to the outside.

In addition, as shown in FIG. 2, the connection terminal 15
A crimp terminal 20 provided at the end of the power distribution cable is fastened and fixed to the tip end connection portion with a bolt or the like.

A threaded fixing fitting 22 is caulked to the end of the bypass cable 21 connected to the connection terminal 15, and a locking fitting 22 that can be locked to the thickness of the connection terminal 15 is attached to the tip thereof. Stop part 2
An inverted L-shaped contact 23 having 3a is provided in a protruding manner. Further, a connecting portion 25 with a smooth surface is formed at the rear end of the fixture 22, and a middle cylinder 26 made of an insulating synthetic resin material is fixed to the rear end of the connecting portion 25.

An insulating tube 24 is provided at the end of the bypass cable 21.
is loosely inserted, and the upper end of the insulating tube 24 is screwed to the fixing metal fitting 22, and by selectively rotating the insulating tube 24 in one of the circumferential directions, the fixing metal fitting 22 can be rotated. It can be moved up and down using the upper end surface as a boundary.

Now, the operation of the connection structure of the bypass path configured as described above will be described below.

First, the cover plate 19 of the main insulator G is disengaged from the locking protrusion (not shown) from the state shown in FIG. The clamping piece 16 is exposed to the outside. In this state, the end of the bypass cable 21 is inserted into the main insulator G from below, and the locking portion 23a of the contact 23 is hooked onto the tip of the connection terminal 15.

Next, the contact 23 is slid toward the base end of the connecting terminal 15, and the side portion of the contact 23 is inserted between the clamping piece 16 and the connecting terminal 15 and brought into contact. In this state, the insulating tube 24 is rotated and moved upwardly above the upper surface of the fixture 22, and then the insulating tube 24 is brought into contact with the lower surface of the connecting terminal 15, and the locking portion 2 of the contactor 23 is brought into contact with the lower surface of the connecting terminal 15.
3a, the connecting terminal 15 is sandwiched between the upper and lower parts. Then, the contactor 23 is held in contact with the connection terminal 15, as shown by the two-dot chain line in FIG.

To release the connection state of the contactor 23 from the connection terminal 15 as described above, it is sufficient to perform the operation opposite to that described above. That is, the insulating tube 24
Rotate it in the circumferential direction opposite to when it was installed and move it down.
Connection terminal 15 made up of the same insulating tube 24 and contactor 23
Release the pinch.

Next, the contact 23 is moved to the base end side of the connection terminal 15, and the contact 23 is released from the connection terminal 15 by the locking portion 23a, and then the bypass cable is moved downward from the main body insulator G. 2
Move 1. Then, the cover plate 19 is moved upward from the open state and is locked to the locking protrusion of the main body insulator G.

In the bypass path connection structure of this embodiment, the contact 23 at the end of the bypass cable 21 is hooked onto the connection terminal 15 via its locking portion 23a, and the contact 23 is brought into contact with the connection terminal 15. By doing so, a bypass path can be formed.
Therefore, during bypass construction, the weight of the bypass cable 21 is supported by the base end of the connection terminal 15,
There is no need to support it with your hands. This facilitates installation. Moreover, since the contactor 23 is sandwiched between the clamping piece 16 and the side surface of the connection terminal 15, the connection state by the latching and locking is stable.

In addition, since the connecting terminal 15 is sandwiched and held between the contact 23 of the bypass cable 21 and the insulating tube 24, the bypass cable 21 is connected to the connecting terminal 1.
It can be installed in a fixed state relative to 5.

Effects of the invention As detailed above, according to this invention, when the locking part of the contact is latched to the connection terminal when forming the bypass path, the bypass cable can be suspended and supported from the connection terminal. It is no longer necessary to support the weight of the terminal by hand, which simplifies the process of forming a bypass path. In addition, the contact connected to the connection terminal can be held by the cooperation of the clamping piece and the side surface of the connection terminal, making it easy to maintain the connection state. It has the excellent effect of being able to hold it stably.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing an embodiment embodying this invention, Fig. 2 is a plan view of the main part of the connecting terminal, and Fig. 3 is an enlarged view of the state of connection between the connecting terminal and the contact. FIG. Connection terminal...15, Clamping piece...16, Bypass cable...21, Contactor...23, Locking part...
23a, switch...AS, main body insulator...G.

Claims (1)

[Scope of utility model registration request] A clamping piece 16 is provided in parallel on the side surface of the base end of the connection terminal 15 extending laterally of the switch AS, and the clamping piece 16 is provided at the distal end of the bypass cable 21.
A contact 23 that can be inserted and removed between the side surface of the connecting terminal 15 and the connecting terminal 15 is provided, and the contact 23 is provided with the connecting terminal 15.
A connection structure for a bypass route in a power distribution line, characterized in that a locking portion 23a is provided at an upper portion to hang a bypass cable 21.