JPS5933144Y2 - Cable insertion type high voltage cutout and cable connection - Google Patents

Description

[Detailed description of the invention] The present invention facilitates the grounding work of the isolation layer of the cable connected to the cable insertion type high voltage cutout and eliminates disconnection of the grounding wire. Regarding the connection part.

Conventional high-voltage cutouts include cables of a certain length that are connected in advance by molding, and by providing a terminal section at the other end of the cable in advance, it is possible to improve the workability of installing the pole. There are things that prevent the beauty of the surroundings from deteriorating.

However, with this type of high-voltage cutout, the molding operation between the cable and the high-voltage cutout increases manufacturing costs because it requires molding of insulation and grounding shield layers, and the mold is constantly Workability was reduced because a certain length of cable was attached.

Furthermore, even at the pole installation site, since the connected cables have a certain length, depending on the pole installation situation, it is necessary to wrap the extra length of the cable or leave it slack. This not only results in a loss of excess cable length, but also reduces workability and aesthetics.

(Also, even if the other end of the cable does not have a terminal section in advance, the extra length can be cut depending on the pole installation situation.
Work loss occurs.

) This invention was created in view of the above, and in order to reduce manufacturing costs, suppress deterioration in workability at the beginning of manufacturing, and eliminate excess length loss of connected cables, it is necessary to A cable insertion part is provided into which the cable connected to the part can be inserted, and a grounding part is provided to facilitate the grounding of the cable shielding layer during cable insertion work and to prevent disconnection of the grounding wire that grounds the shielding layer. The present invention provides a connection part between a cable insertion type high voltage cutout and a cable, in which a wire is provided in front of the outer periphery of the cable insertion part.

Hereinafter, embodiments of the present invention will be explained in detail with reference to FIGS.

FIG. 1 shows details of the connection between the cable 1 and the high-voltage cutout 10, in which the cable 1 is compressed and fixed to the grounding shield layer 3, the insulator 4, the conductor 5, and the tip 5a of the conductor 5. The high voltage cutout 10 includes a main body glass 11, an upper fixed electrode 12 provided inside the main body glass 11, and a fuse tube whose one end electrode is connected to the upper fixed electrode 12. 14, an insertion part 19' which is provided on the upper part of the main body glass 11 and mainly consists of an insulating tube 19 having an insertion opening 19a, and an upper fixed electrode 12 which is provided in the gap between the main body glass 11 and the insulating tube 19. and a receptacle 20 electrically connected to the receptacle 20.

In the above configuration, after the cable 1 is inserted into the insertion port 19a of the insulating tube 19 to obtain an electrical connection between the compression plug 2 and the receptacle 20, a semiconductive tape wrapping layer is applied from the grounding shield layer 3 to the insertion portion 19'. 6 and at the same time provide a grounding shield layer 3.
and the ground wire 9 on the outer periphery of the insertion portion 19' are connected, and the waterproof tape wrapping layer 7 and the heat shrinkable tube layer 8 are provided on the outer periphery, and the work is completed.

FIG. 2 shows the high voltage cutout 10 shown in FIG.
The insertion part 19' is shown in detail, and the insertion part 19' includes an insulating tube 19 having an insertion opening '19a, a spiral grounding wire 9 provided on the outer periphery of the insulating tube 19, and an insulating tube 19 that covers the insulating tube 19. The ground wire 9 has a free end 9a at one end, and the other end 9b is connected to the fixing band 2.
1 and a fastener 22, and is connected via a connecting conductor 23 to a fixing support arm 24 which performs a grounding function, and is fixed with a fastener 25.

3A and 3C show the state before the cable 1 explained in FIG. 1 is inserted into the high voltage cut act 10.

Figure 3A shows that the cable 1 to be inserted is stripped in stages to expose the grounding shield layer 3, insulator 4 and conductor 5, and the conductor 1
It has a compression plug 2 at its tip, and a terminal part 3 at its opposite end.
0, and the terminal portion 30 is provided with a plug 32 to be inserted into the overhead cable 31.

In the Figure 3 opening, the high pressure cut act 10 is connected to the main body glass 11,
The insulating cover 16, the insertion part 19' consisting of the string 18 and the insulating tube 19 (FIGS. 1 and 2) with one end fixed to the insulating cover 16, and the lower sunrise wire 26 pulled out to the load side. The compression plug 2 of the cable 1 shown in FIG. 1 is inserted into the insertion portion 19'.

FIG. 3C shows a modification of the terminal part 30 in FIG.
After compressing the conductor and inserting the insulating cover 33,
The waterproof tape wrapping part is preserved.

In this way, the cable 1 is inserted into the insertion part of the high voltage cutout 10 and the connection shown in FIG. 1 is formed.

In the above configuration, after the cable 1 having the compression plug 2 is inserted into the insertion opening '19a of the insertion portion 19', the semiconductive tape wrapping layer 6 is formed, and the grounding wire 9 is placed on the semiconducting tape wrapping layer 6. The connection work can be completed by simply locating the free end 9a of the connector and applying the waterproof tape wrapping layer T and the heat-shrinkable tube layer 8 to its outer periphery.

Therefore, the work is extremely simple, and the insertion portion 19
Since the free end 9a of the grounding wire 9 always exists above ', the worker cannot finish the work without grounding.

As explained above, by providing a cable insertion part into which the cable to be connected is inserted above the high-voltage cutout, manufacturing costs are reduced, work efficiency during manufacturing is suppressed, and the cable to be connected is Furthermore, since the grounding wire for grounding the cable shielding layer is provided in advance on the outer periphery of the cable insertion part, the shielding layer grounding work during the cable insertion work is facilitated. At the same time, disconnection of the grounding wire can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the connection between the cable insertion type high voltage cutout and the cable according to the present invention, Fig. 2 is a partially cutaway and cross-sectional explanatory view showing one embodiment of the present invention, and Fig. 3
Figures 1 and 2 are explanatory diagrams showing the cable insertion type high-voltage cutout and the state before it is connected to the cable. Explanation of symbols, 1...Cable, 2...
Compression plug, 3... Shielding layer, 4... Insulator, 5... Conductor, 6... Semiconductor tape wrapping layer, 7...・Waterproof tape wrapping layer, 8,8/-
... Heat shrink tube layer, 9 ... Ground wire, 9
a... Ground wire free end, 10... High voltage cutout, 11... Cutout body, 12
......upper electrode, 14...fuse tube,
16...Insulation cover, 19...Insulation cylinder, 19a...Insertion port, 19 (...Insertion part, 20...Receipt, 21 ...Fixing band, 22...Confucian fittings, 23...Connecting conductor, 24...Supporting arm, 25...Full fittings,
26...Lower Hiji Line, 30...Terminal section, 30a...Insulation section, 31, 31'...
・Cable insulated wire, 32...Plug, 33・
...Insulation cover.

Claims (1)

[Claims for Utility Model Registration] A cutout body that houses a fuse strip with one end connected to an upper electrode, a receptacle located above and outside the cutout body and connected to the upper electrode, and the cutout body An insulating node is provided on the top of the conductor and has the receptacle located inside and has a cable insertion hole leading to the receptacle, the grounding shield layer, and the insulator is stripped off in stages to fix the plug to the tip of the conductor. A cable that is inserted through the cable insertion hole with the layer located outside the insulating tube and connects the plug to the receptacle, and a cable that is arranged around the outer periphery of the insulating tube and has one end grounded and the other free end. a grounding wire connected to the grounding shield layer of the cable; and a waterproofing section applied from the sheath of the cable to the insulating tube, including the connection part of the grounding shielding layer and the grounding wire. Cable insertion type high voltage cutout and cable connection.