JPH046130Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is applicable to power transmission lines, transformers, power transmission cables,
This invention relates to an insulating protective cover that covers the joints of high voltage parts such as circuit breakers.

[Prior art] High voltage exposed parts such as power transmission lines, transformers, circuit breakers, etc.
For example, an insulator or a terminal portion connected to the insulator is sometimes covered with a rubber insulating protective cover for safety reasons or to protect the terminal portion from corrosion.

[Problems that the invention aims to solve] However, there are various shapes of insulators used in such high voltage parts, and compression terminals are connected to these insulators. Because there are various aspects in direction and shape, it is difficult to manufacture many types of insulation protection covers to reliably cover these various types of insulators and compression terminals, and it is difficult to manufacture insulation protection covers with a small number of types. There has been a demand for an insulation protection cover that can integrally cover insulators of various shapes together with compression terminals.

This invention was developed in consideration of the above points.
The purpose of the present invention is to provide an insulating protective cover that integrally covers high voltage parts such as insulators and compression terminals, protects the joint parts from rainwater, etc., and ensures safety during work.

[Means for solving the problem] To this end, the insulating protection cover of the present invention is made of an electrically insulating material that covers the joints of high voltage components, and is attached by fitting the cover into two parts at the joints. The mating parts are secured by inserting locking buttons into a plurality of holes drilled in the mating parts, and the plurality of insulation protective covers are held together by these restraining buttons. It is configured such that it is connected through the section.

[Function] Therefore, for example, when attaching an insulation protection cover to an insulator to which a compression terminal is connected, an insulation protection cover of a shape corresponding to the insulator is attached, and the insulation protection cover for the compression terminal is attached to the compression terminal. If you insert the locking button into the hole with the joints of both covers aligned and lock the joints, the two insulation protection covers will immediately cover the insulator including the compression terminal. They are integrally connected and installed.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

1 to 4 show an insulating protective cover 1 for a compression terminal, which is made of a box-shaped flexible electrically insulating material (e.g. (silicone rubber, etc.). This insulating protection cover 1 is formed into a vertically halved shape, and is combined so that it can be divided into two vertically at a flange-like joining portion 1A. A large number of holes are formed at intervals in the mating part 1A, and by inserting the locking buttons 4 into these holes, the mating part 1A, that is, the protective cover 1 divided into two parts, is restrained. Reference numeral 2 denotes a window section for internal observation formed to span the mating section 1A;
A transparent plate 3 made of synthetic resin or the like is fitted into the housing, so that the inside can be observed from the outside while shielding the inside.

Furthermore, the mating portion 1A is formed such that the peripheral edge of one mating portion covers the peripheral edge of the other mating portion, and the gap between the mating surfaces is reduced to prevent rainwater from entering the cover. There is. Also, the third
As shown in the figure, a washer 5 made of synthetic resin is fitted to the non-return portion at the tip of some of the restraining buttons 4, so that even if the cover softens due to heat, the restraining buttons 4
prevents it from coming off.

The insulation protection cover 1 for such a compression terminal is
Its lower end is open and has a structure that allows it to be used by connecting it to a part of other insulation protection covers for insulators.

Figures 5 to 7 Insulating protective cover 1 for peelers
An example of No. 1 is shown. This insulation protection cover 11
is the Tr bushing (insulator) which is the protected member.
It is molded from silicone rubber or the like into a shape that can cover the body, and is split vertically in half, similar to the protective cover described above. The insulating protection cover 11 divided into two parts is brought together at the flange-like mating part 11A, and by inserting the same locking button 4 as described above into the hole provided in the joining part 11A, the two parts of the insulating protection cover 11 are assembled. 11 is arrested.

Furthermore, box-shaped protrusions are formed at the lower portions of both sides of the insulation protection cover 11 so as to straddle the mating portion 11A, and circular windows 12 are opened in both protrusions. A groove is provided in the inner peripheral portion of the window portion 12, and a transparent plate 13 made of acrylic resin or the like is fitted into this groove.
As in the above embodiment, this window portion 12 is provided across the mating portion 11A of the protective cover, so that the transparent plate 13 can be easily attached and removed by removing the locking button 4 and opening the mating portion 11A. can be done. Further, a rectangular connecting part 15 having an opening for protruding the terminal part is bored in the upper part of the insulation protection cover 11, and this insulation protection cover 1 for the compression terminal and the insulation protection cover 1 for the Tr bushing are formed in the upper part of the insulation protection cover 11. When connecting the cover 11 and using it, this connection part 1
The lower part of the insulation protection cover 1 is connected to 5.

That is, as shown in FIGS. 8 and 9, Tr
When attaching the protective cover with the compression terminal 41 connected to the terminal portion of the bushing 40, the insulation protective cover 1 is attached to the upper connection portion 1 of the insulation protective cover 11.
Connect and install it by covering it with 5. For this connection, the lower part of the insulation protection cover 1 is placed over the connection part 15 on the upper part of the insulation protection cover 11, and the connection parts 16 provided on both sides of the connection part 15 are placed on the lower ends of both sides of the mating part 1A of the insulation protection cover 1. This is done by inserting the locking button 4 and passing it through between both members.

FIGS. 10 and 11 show an insulating protective cover 21 for SP insulators. This insulation protection cover 2
1 is molded from silicone rubber or the like into a shape that can cover the SP insulator, and is split vertically in half.

In addition, the insulation protection cover 21 divided into two parts is fitted together at a flange-like mating part 21A, and the insulation protection cover divided into two parts is fitted by inserting a locking button 4 similar to the above into the hole provided in the joining part 21A. The cover 21 is restrained. Further, box-shaped protrusions 22 are provided on both sides of the insulation protection cover 21 so as to straddle the mating portion 21A, and the protrusions 22 are provided with openings 23 for leading out conductors such as cables and copper strips.

The insulating protection cover 21 having such a structure is attached to cover the SP insulator, and allows the conductor to protrude from the opening holes 23 on both sides. 1st
It is also possible to cover the conductor with an insulating protection cover 31 as shown in FIG. This insulating protection cover 31 is also formed to be able to be divided into two parts at the mating part 31A, and the restraining button 4 is inserted into a hole provided in the mating part 31A to restrain the mating part 31A. Then, as shown in Fig. 12, insert the end of the conductor insulation protection cover 31 into the opening hole 23 of the SP insulator insulation protection cover 21, and insert the end of the mating part 31A between the mating parts 21A on the main body side. Then, the locking button 4 is inserted into the hole provided in the mating portion, and the two covers are connected.

Furthermore, as shown in FIG. 13, when the compression terminal 41 is joined to the SP insulator 42, the above SP
The insulation protection cover 21 for insulators and the above-mentioned insulation protection cover 1 for compression terminals can be attached thereto in a connected state.

That is, when connecting such a cover, first cut the tip of the box-shaped protrusion 22 of the insulation protection cover 21 for SP insulators vertically with a cutter, cut out the mating part 21A at the tip, and remove the protrusion. A rectangular opening is formed in the portion 22. In this state,
The insulation protection cover 21 is placed over the SP insulator 42, the insulation protection cover 1 is placed over the compression terminal 41 protruding from the opening, and the end of the insulation protection cover 1 (lower end in FIG. 1) is placed over the protrusion 22 of the cover 21. The connection is completed by inserting the locking button 4 into the hole with the mating parts 1A and 21A of both covers aligned.

In this way, various types of insulation protection covers are connected to each other and used, so it is not just an insulator.
It is also possible to integrally cover the compression terminal that is connected to the insulator and protrudes. Furthermore, since the cover is connected using the mating portion and the locking button, it can be easily connected with almost no gaps between the covers.

It goes without saying that the insulating protection cover of the present invention can be applied to various high voltage components in addition to the above-mentioned Tr bushings, SP insulators, and compression terminals.

[Effects of the invention] As explained above, the insulation protection cover of the invention has a structure in which a plurality of insulation protection covers can be connected to each other using the mating portion and the locking button. If a compression terminal, etc. is connected to a high-voltage component and you want to cover it integrally with an insulator, etc., if you prepare a protective cover for each, you can easily connect it to the high-voltage component in no time. It can be attached to. Furthermore, since the protective cover is connected by also serving as a locking button that locks the two-part cover at the mating portion thereof, the connecting work is easy and sufficient connection strength can be obtained.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view of the insulation protection cover 1, Fig. 2 is a front view of the same, Fig. 3 is a right side view of the same, Fig. 4 is a plan view of the same, and Fig. 5 is a perspective view of the insulation protection cover 11, FIG. 6 is a front view of the same, and FIG.
8 is a sectional view showing its usage state, FIG. 9 is a perspective view thereof, FIG. 10 is a front view of the insulation protection cover 21, FIG. 11 is a right side view of the same, and FIG.
FIG. 2 is a perspective view showing the state of use, and FIG. 13 is a sectional view showing another state of use. 1, 11, 12...Insulation protection cover, 1A, 1
1A, 21A... Matching portion, 4... Restriction button.

Claims (1)

[Scope of utility model registration request] An insulating protection cover made of an electrically insulating material that covers the joints of high-voltage members, and is attached by fitting two parts of the cover together at the joint, and is connected to a plurality of holes drilled in the joint. An insulating protection cover characterized in that a mating part is restrained by inserting a locking button, and a plurality of insulating protection covers are connected via the mating part by the restraining button.