JP2647017B2 - Branch sleeve cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch sleeve cover suitable for insulating and protecting a charged portion of a connection between a distribution line and a branch line.

[0002]

2. Description of the Related Art Conventionally, when a branch sleeve cover is attached to a charged portion of a connection between a distribution line and a branch line to protect the insulation, a worker wearing insulating gloves or insulating clothes is required to ensure the safety of the worker. Had directly installed the branch sleeve cover.

[0003]

However, when a branch line is connected to a distribution line, the distribution line may be curved in a curved portion at an edge of the distribution line. In this case, after grasping the situation of other congested distribution lines, work with insulated gloves while maintaining the worker's own safety, so fix the branch sleeve cover to the curved distribution line And the installation of the branch sleeve cover is not facilitated.

In view of the above circumstances, the present invention makes it possible to safely and easily attach a distribution line to a connection charging portion using a predetermined indirect live tool from a place about 1 m away even if the distribution line is curved. It is an object of the present invention to provide a branch sleeve cover that can be used.

[0005]

That is, according to the present invention, there is provided a branch sleeve cover (1) which is used for electrical insulation by attaching to a charging portion (25) for connecting a distribution line (21) and a branch line (22). A split-section charged protection body for the distribution line charging part (3) formed in a two-piece integral type, and a cylindrical branch line charging part insulation protection part communicating with a substantially central portion of the distribution line charged part insulation protection body. A flexible casing (2) formed in a T-shape from the body (5), and temporary wire holders (10, 11) near both ends of the distribution line charging section insulating protection body, respectively.
And closing means (6, 7, 9) are provided at the opening of the distribution line charging section insulating protection body. The present invention also relates to a branch sleeve cover (1) which is attached to a charging portion (25) for connection between a distribution line (21) and a branch line (22) to be used for electrical insulation, and which is a two-piece integrated cylinder. A T-shaped tube comprising: a distribution line charging section insulating protection body (3) formed in a shape; and a cylindrical branch line charging section insulation protection body (5) communicating with a substantially central portion of the distribution line charging section insulation protection body. A temporary casing (10, 11) made of a high-rigidity material is provided near each end of the distribution line charging section insulating protection body. A closing means (7, 9) is formed integrally with the temporary wire holder at the opening of the wire charging part insulating protection body. Buttons (6a, 7a, 9a) supported to protrude and retreat from the distribution line charging section insulating protection body (3), and button holes (6b, 7b, 9b) into which the buttons can be fitted. And closing means (6, 7, 9). The present invention also relates to a branch sleeve cover (31) which is attached to a charged portion (25) of a distribution line (21) and a branch line (22) to be used for electrical insulation, and which is a two-piece integral cylinder Distribution line charging section insulation protection body (33)
And a casing (32) formed in a T-shape from a semi-cylindrical two-piece branch line charging section insulating protection body (35) integrally formed with the distribution line charging section insulating protection body. Have
High near each end of the insulation protection body of the distribution line
Provision of electric wire temporary holders (40, 41) made of a rigid material ,
The distribution line charging section insulation protection body is projected and retractably supported.
The buttons (37a, 39a) held and the buttons
The consists a button hole to engage (37b, 39b) 1
The closing means (37, 39) of the distribution line insulated protection of the live part
The electric wire temporary holder is formed integrally with the opening of the body, and the second closing means (3
6) is provided.

[0006] The numbers in parentheses are for convenience showing the corresponding elements in the drawings, and the present invention is not limited to the description on the drawings. The same applies to the fields of “Claims” and “Action”.

[0007]

With the above construction, according to the present invention, when the branch sleeve cover (1, 31) is attached to the connection charging portion (25), one end of the distribution line charging portion insulating protection body (3, 33) is temporarily held. The temporary holding operation of the other end of the distribution line charging section insulating protection body is performed in a state where the both ends of the distribution line charging section insulating protection body are temporarily held by the tools (10, 40). (10, 11, 40, 41) and the first closing means (37, 39) and the second closing means (3) while being temporarily held on the distribution line by the (10, 11, 40, 41).
The operation of closing the casing (2, 32) according to 6) is performed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the branch sleeve cover according to the present invention, and FIG. 2 is an enlarged sectional view showing an example of the vicinity of the closing means of the branch sleeve cover shown in FIG.
Is a diagram showing an open state, (b) is a diagram showing a closed state, FIG.
FIG. 4 is a perspective view showing a charged portion of connection between a distribution line and a branch line, and FIG.
Is a perspective view showing a state in which the branch sleeve cover shown in FIG. 1 is temporarily held on the distribution line, FIG. 5 is a schematic view showing a procedure for attaching the branch sleeve cover shown in FIG. 1, and FIG. 6 is a branch sleeve cover shown in FIG. 7 is an enlarged sectional view showing another example of the vicinity of the closing means, FIG. 7 is a perspective view showing another embodiment of the branch sleeve cover according to the present invention, and FIG. 8 is a schematic view showing the procedure for attaching the branch sleeve cover shown in FIG. It is.

As shown in FIG. 1, a branch sleeve cover 1 according to the present invention is formed in a T-shape from a flexible material such as a soft synthetic resin (for example, thermoplastic elastomer, polyethylene) or synthetic rubber. The casing 2 includes a distribution line charging section insulating protection body 3 formed into a two-piece integral cylindrical shape, and a cylindrical shape communicating with a substantially central portion of the distribution line charging section insulation protection body 3. And an insulated protective body 5 for the branch line.

[0010] By the way, the opening of the distribution line charging section insulating protection body 3 is provided with closing means 6, 7, 9 at three locations near the center and near both ends, respectively.
7, 9 are buttons 6a, 7a, 9a and button holes 6b, 7
b and 9b. Buttons 6a, 7
As shown in FIG. 2, a and 9a are supported on the distribution line charging section insulating protection body 3 so as to protrude and retreat in the directions of arrows A and B. A hard synthetic resin (for example, polyamide) is provided near both ends of the distribution line charging section insulating protection body 3.
C-shaped wire temporary holders 10 and 11 made of a high-rigidity material such as metal and metal springs are provided internally in a form integrally formed with the closing means 7 and 9. Are ring bodies 10a, 11a and two back-up preventing pieces 10b, 11b.
It is composed of Further, the closing means 6 and the closing means 7
Ribs 12 and 13 for improving the insulation of the electric wires are formed in the portion of the distribution line charging section insulating protection body 3 between the closing means 6 and the closing means 6 and the closing means 9, respectively. Wire ends 1 at both ends of the wire charging part insulation protector 3
5, 16 are formed.

On the other hand, a wire port 17 is formed at one end of the branch line charging section insulating protection body 5 (the end not communicating with the distribution line charging section insulating protection body 3).

Since the branch sleeve cover 1 has the above-described configuration, the branch sleeve is attached to the connection charging portion 25 (see FIG. 3) between the distribution line 21 and the branch line 22 which are curved in a predetermined radius of curvature R. When the cover 1 is attached and insulated, a worker uses a predetermined indirect hot-line tool (not shown) to attach the branch sleeve cover 1 in a following procedure from a place about 1 m away.

First, as shown in FIG.
2 Insulation protection body 5 for branch line charging part of branch sleeve cover 1
Is connected, the branch line 22 is connected to the distribution line 21 and fixed with a predetermined metal fitting 23.

Next, as shown in FIG. 5B, the branch sleeve cover 1 is brought close to the distribution line 21, and the closing means 6,
With the buttons 6a, 7a, 9a of 7, 9 retracted in the direction of the arrow B, the distribution line 21 is introduced into the ring body 10a of the temporary electric wire holder 10 of one of the distribution line charging section insulating protection members 3. , One end of the distribution line charging section insulating protection body 3 is connected to the distribution line 2
It is temporarily held at 1. At this time, since the buttons 6a, 7a and 9a are retracted in the direction of arrow B, the distribution line 21 is
There is no possibility that the introduction into the ring body 10a is prevented by being caught on the a, 7a, 9a. In addition, the reverse movement preventing piece 10b of the wire temporary holder 10 prevents the distribution line 21 once introduced into the ring body 10a from coming off the ring body 10a. The state in which it is securely held by the electric wire 21 is achieved.

Thereafter, as shown in FIGS. 5 (c) and 4, the distribution line charging section insulation protection body 3 is appropriately curved along the curved distribution line 21, and in this state, the distribution line charging section insulation protection body 3 is protected. By introducing the distribution line 21 into the ring body 11 a of the other electric wire temporary holding tool 11 of the body 3, the other end of the distribution line charging section insulating protection body 3 is temporarily held on the distribution line 21. At this time, the distribution line charging section insulation protection body 3 is formed of a flexible material, and one end of the distribution line charging section insulation protection body 3 is connected to the distribution line 21 by the wire temporary holder 10 as described above. Therefore, the bending operation of the distribution line charging section insulating protection body 3 is performed smoothly. In other words, the provision of the wire temporary holder 10 on the distribution line charging section insulating protection body 3 causes the operator to accidentally drop the branch sleeve cover 1 during the bending operation of the distribution line charging section insulation protection body 3. Can be prevented beforehand. In addition, the reverse movement prevention piece 11b of the wire temporary holding tool 11 prevents the distribution line 21 once introduced into the ring body 11a from coming off the ring body 11a. The state is securely held by the distribution line 21.

In this way, when both ends of the distribution line charging section insulating protection body 3 are temporarily held by the distribution line 21, the buttons 6a, 7a, 9a of the closing means 6, 7, 9 are respectively inserted into the button holes 6b, 7b, 9b. , The casing 2 is completely fixed to the connection charging portion 25 between the distribution line 21 and the branch line 22. At this time, since both ends of the distribution line charging section insulating protection body 3 are temporarily held on the distribution line 21 by the electric wire temporary holders 10 and 11, the fixing work of the casing 2 is performed smoothly. In addition, since the closing means 7, 9 are formed integrally with the wire temporary holders 10, 11 made of a highly rigid material, when the buttons 7a, 9a are fitted into the predetermined button holes 7b, 9b, Buttons 7a, 9a and button holes 7b, 9b
Can be easily fitted. Here, the mounting operation of the branch sleeve cover 1 is completed.

In the above-described embodiment, the branch sleeve cover 1 in which the opening is formed only in the distribution line charging portion insulating protection body 3 of the casing 2 has been described. It is also possible to form openings in the part insulating protection body 3 and the branch line charging part insulating protection body 5. Hereinafter, the distribution line charging part insulating protection body 3 of the casing 2
The branch sleeve cover 31 in which an opening is formed in the branch line charging section insulating protection body 5 will be described.

That is, as shown in FIG. 7, the branch sleeve cover 31 is a casing formed of a flexible material such as a soft synthetic resin (for example, thermoplastic elastomer or polyethylene) or a synthetic rubber into a T-shape. 32,
The casing 32 includes a distribution line charging section insulation protection body 33 formed in a two-piece integrated cylindrical shape, and a semi-cylindrical two-piece set of branch lines integrally formed with the distribution line charging section insulation protection body 33. And a charging section insulating protection body 35.

By the way, at the opening of the distribution line charging section insulating protection body 33, the first closing means 3 is provided near both ends thereof.
7 and 39 are provided, and each closing means 37, 39 is composed of buttons 37a, 39a and button holes 37b, 39b. The buttons 37a and 39a are supported so as to protrude and retract with respect to the distribution line charging section insulating protection body 33. In addition, a hard synthetic resin (for example, polyamide) is provided near both ends of the distribution line charging section insulating protection body 33.
C-shaped wire temporary holding members 40 and 41 made of a high-rigidity material such as metal and metal springs are provided internally in a form integrally formed with the first closing means 37 and 39. , 41
Are ring bodies 40a, 41a and two reverse movement prevention pieces 40b,
41b. Further, wire ports 45 and 46 are formed at both ends of the distribution line charging section insulating protection body 33, respectively.

On the other hand, a wire port 47 is formed at one end of the branch line charging section insulating protection body 35 (the end not communicating with the distribution line charging section insulating protection body 33). The protrusion 36 a
And a second closing means 36 comprising a receiving port 36b. Further, ribs 42 and 43 for improving the insulation of the electric wire are formed on one side of the branch line charging portion insulating protection body 35.

Since the branch sleeve cover 31 has the above-described configuration, the branch sleeve cover 31 is attached to the connection charging portion 25 between the distribution line 21 and the branch line 22 having a predetermined radius of curvature R. At the time of insulation, the worker attaches the branch sleeve cover 31 in the following procedure using a predetermined indirect live tool (not shown) from a place about 1 m away.

First, as shown in FIG.
2 is connected to the distribution line 21 and fixed with the predetermined metal fittings 23. Then, the branch sleeve cover 31 is approached to the connection charging portion 25, and the buttons 37a, 39 of the first closing means 37, 39 are pressed.
a is retracted, the distribution line 21 is placed in the ring body 40a of one of the electric wire temporary holding members 40 of the distribution line charging section insulating protection body 33.
, The one end of the distribution line charging section insulating protection body 33 is temporarily held on the distribution line 21. At this time, the button 37
a, 39a are retracted, so that the distribution line 21 is
The introduction into the ring body 40a by the hooks 7a and 39a is not prevented. In addition, the wire temporary holder 4
The zero-back prevention piece 40b prevents the distribution line 21 once introduced into the ring body 40a from coming off the ring body 40a, so that one end of the distribution line charging part insulating protection body 33 is securely held on the distribution line 21. It will be in the state that was done.

Thereafter, as shown in FIG. 8 (b), the distribution line charging section insulation protection body 33 is appropriately curved along the curved distribution line 21, and in this state, the distribution line charging section insulation protection body 3 is bent.
By introducing the distribution line 21 into the ring body 41 a of the other electric wire temporary holding tool 41 of 3, the other end of the distribution line charging section insulating protection body 33 is temporarily held on the distribution line 21. At this time, the distribution line charging section insulation protection body 33 is formed of a flexible material, and one end of the distribution line charging section insulation protection body 33 is connected to the distribution line 21 by the wire temporary holder 40 as described above. The distribution line live part insulation protection body 3
The bending operation of 3 is performed smoothly. That is, the provision of the wire temporary holder 40 on the distribution line charging section insulating protection body 33 may cause a situation in which the worker accidentally drops the branch sleeve cover 31 during the bending operation of the distribution line charging section insulation protection body 33. Can be prevented beforehand. Also, the reverse movement preventing piece 41b of the wire temporary holding tool 41 is formed by the distribution wire 21 once introduced into the ring body 41a.
Is prevented from coming off, so that the other end of the distribution line charging section insulating protection body 33 is also securely held by the distribution line 21.

In this manner, when both ends of the distribution line charging section insulating protection body 33 are temporarily held by the distribution line 21, FIG.
As shown in the figure, the button 37 of the first closing means 37, 39
a and 39a are fitted into the button holes 37b and 39b, respectively, and the protrusion 36a of the second closing means 36
6b, the casing 32 is connected to the distribution line 2
1 and the branch line 22 are completely fixed to the charging portion 25. At this time, since the both ends of the distribution line charging portion insulating protection body 33 are temporarily held on the distribution line 21 by the electric wire temporary holders 40 and 41, the fixing work of the casing 32 is performed smoothly. Further, since the first closing means 37, 39 are formed integrally with the wire temporary holders 40, 41 made of a highly rigid material, the respective buttons 37a, 39a are formed in predetermined button holes 37.
When fitting with the buttons b and 39b, the buttons 37a and 39a can be easily fitted with the button holes 37b and 39b. Here, the operation of attaching the branch sleeve cover 31 is completed.

In the above-described embodiment, the branch sleeve cover 1 or 31 in which the wire temporary holders 10, 11, or 40, 41 are provided only near both ends of the distribution line charging section insulating protection body 3 or 33, respectively. Although described, in the present invention, a temporary wire holder may be additionally provided at a location (for example, a central portion) other than the vicinity of both ends of the distribution line charging section insulating protection body 3 or 33.

Also, in the above-described embodiment, the distribution line 21 is provided by providing the buttons 6a, 7a, 9a or 37a, 39a of the closing means 6, 7, 9 or 37, 39 so as to protrude and retreat freely. Has been described so as not to hinder the introduction of the power distribution line 21 into the ring body 10a or 40a. It is not necessary to protrude and retreat freely, and as shown in FIG. 6, the buttons 6a, 7a, 9a or 37a, 39a may be fixed to the distribution line charging section insulating protection body 3 or 33, and accordingly, the buttons are closed. The configuration of the means 6, 7, 9 or 37, 39 can be simplified.

[0027]

As described above, according to the present invention,
Branch sleeve cover 1 used to electrically insulate by attaching to charging part 25 for connection between distribution line 21 and branch line 22
And a distribution line charging section insulation protection body 3 formed in a two-piece integrated cylindrical shape, and a cylindrical branch line charging section insulation protection body communicating with a substantially central portion of the distribution line charging section insulation protection body 3. 5
And a flexible casing 2 formed in a T-shape from the above, and temporary wire holders 10 and 11 are provided near both ends of the distribution line charging section insulating protection body 3, respectively. Since the closing means 6, 7, 9 is provided at the opening of the insulating protection body 3, the connection charging portion 2 of the branch sleeve cover 1 is provided.
5, the temporary holding operation of the other end of the distribution line charging part insulating protection body 3 is performed in a state where one end of the distribution line charging part insulation protection body 3 is temporarily held on the distribution line 21 by the wire temporary holding tool 10. Furthermore, the closing operation of the casing 2 by the closing means 6, 7, 9 can be performed in a state where both ends of the distribution line charging section insulating protection body 3 are temporarily held on the distribution line 21 by the temporary wire holding members 10, 11. Therefore, even if the distribution line 21 is curved, it is possible to safely and easily attach the branch sleeve cover 1 to the connection charging portion 25 using a predetermined indirect live tool from a place about 1 m away. Become.
Further, according to the present invention, there is provided a branch sleeve cover 1 which is attached to a connection charging portion 25 between a distribution line 21 and a branch line 22 to be used for electrical insulation, the distribution sleeve being formed into a two-piece integral cylindrical shape. A flexible T-shaped tubular member is formed from the wire charging part insulating protection body 3 and the cylindrical branch line charging part insulating protection body 5 communicating with the substantially central portion of the distribution line charging part insulating protection body 3. It has a casing 2, and electric wire temporary holders 10, 11 made of a high-rigidity material are provided near both ends of the distribution line charging section insulating protection body 3, and are closed at openings of the distribution line charging section insulation protection body 3. Means 7 and 9 are attached to the wire temporary holder 1
Since the branch sleeve cover 1 is attached to the connection charging portion 25, one end of the distribution line charging section insulating protection body 3 is temporarily attached to the distribution line 21 by the electric wire temporary holder 10 when the branch sleeve cover 1 is attached to the connection charging portion 25. In this state, the other end of the distribution line charging section insulating protection body 3 is temporarily held, and both ends of the distribution line charging section insulating protection body 3 are temporarily held on the distribution line 21 by the temporary wire holding tools 10 and 11. The casing 2 can be closed by the closing means 7 and 9 in the closed state. Therefore, even if the distribution line 21 is curved, a predetermined indirect live tool is used from a place about 1 m away. Thus, it is possible to provide the branch sleeve cover 1 that can be safely and easily attached to the connection charging portion 25 and that can appropriately perform the closing operation of the casing 2 by the closing means 7 and 9. Buttons 6a, 7a, 9a supported to protrude and retreat from the distribution line charging section insulating protection body 3, and button holes 6 into which the buttons 6a, 7a, 9a can be fitted.
When using the closing means 6, 7, 9 composed of b, 7b, 9b, the buttons 6a, 7a, 9a do not interfere with the introduction of the distribution line 21 into the ring body 10a. Since the distribution line 21 can be smoothly introduced, the attachment of the branch sleeve cover 1 can be further simplified. Further, according to the present invention, the distribution line 2
A branch sleeve cover 31 attached to the charging portion 25 for connection between the 1 and the branch line 22 to be used for electrical insulation, comprising a split and integral cylindrical distribution line charging section insulating protection body 33; A casing 3 formed in a T-shape from a set of two semi-cylindrical branch line charging section insulating protection members 35 integrally formed with the distribution line charging section insulating protection body 33.
2 and temporary wire holders 40, 4 made of a high-rigidity material near both ends of the distribution line charging section insulating protection body 33, respectively.
1 and protrude from the distribution line charging section insulating protection body 33.
Buttons 37a, 39a supported to be able to move back and forth,
A button hole 37b into which the tongues 37a, 39a can be fitted and engaged;
39b, the first closing means 37, 39 comprising
The wire temporary holder 4 is inserted into the opening of the wire protection part insulation protection body 33.
0, 41, and the second closing means 36 is provided at the opening of the branch line charging section insulating protection body 35, so that when the branch sleeve cover 31 is attached to the connection charging section 25, In the state where one end of the distribution line charging section insulating protection body 33 is temporarily held by the distribution line 21 by the temporary wire holding tool 40, the other end of the distribution line charging section insulating protection body 33 is temporarily held, and further, the distribution line charging is performed. The first closing means 37 and 39 and the second closing means 36 in a state where both ends of the partial insulation protection body 33 are temporarily held on the distribution line 21 by the temporary wire holders 40 and 41.
Can perform the closing operation of the casing 32 by the
m and can be safely and easily attached to the connection charging part 25 using a predetermined indirect live tool .
The closing operation of the casing 32 by the first closing means 37, 39
Business can be implemented properly . In addition, distribution line 2
First closing means when introducing the first into the ring body 40a
Buttons 37a and 39a of 37 and 39 are in the way
The distribution line 21 should be introduced smoothly
Makes it easier to attach the branch sleeve cover 31
It becomes possible to simplify.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a branch sleeve cover according to the present invention.

FIGS. 2A and 2B are enlarged cross-sectional views showing an example of the vicinity of a closing means of the branch sleeve cover shown in FIG. 1, wherein FIG. 2A is a view showing an open state, and FIG.

FIG. 3 is a perspective view showing a connection charging portion between a distribution line and a branch line.

FIG. 4 is a perspective view showing a state in which the branch sleeve cover shown in FIG. 1 is temporarily held on a distribution line.

FIG. 5 is a schematic view showing a procedure for attaching the branch sleeve cover shown in FIG. 1;

FIG. 6 is an enlarged sectional view showing another example of the vicinity of the closing means of the branch sleeve cover shown in FIG. 1;

FIG. 7 is a perspective view showing another embodiment of the branch sleeve cover according to the present invention.

FIG. 8 is a schematic view showing a procedure for attaching the branch sleeve cover shown in FIG. 7;

[Explanation of symbols]

 1, 31 ... branch sleeve cover 2, 32 ... casing 3, 33 ... distribution line charging section insulation protection body 5, 35 ... branch line charging section insulation protection body 6, 7, 9 ... closing means 6a, 7a , 9a button 6b, 7b, 9b button hole 10, 11, 40, 41 wire temporary holder 21 distribution wire 22 branch wire 25 connection charging part 36 second blockage Means 36a Projection 36b Receiving port 37, 39 First closing means 37a, 39a Button 37b, 39b Button hole

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Morinori Morinaga 2-213 Ueda Nishi, Tenpaku-ku, Nagoya-shi, Aichi Prefecture Maruho Sangyo Co., Ltd. (56) References JP-A-51-15179 (JP, A) JP 35-7449 (JP, Y1)

Claims (4)

(57) [Claims] A branch sleeve cover (1) attached to a charging portion (25) for connecting a distribution line (21) and a branch line (22) to electrically insulate, and is a split-integral cylindrical shape. And a cylindrical branch line charging section insulating protector (5) communicating with a substantially central portion of the distribution line charging section insulating protector (3). A flexible casing (2) formed on the wire, and temporary wire holders (10, 11) are provided near both ends of the distribution line charging section insulation protection body, respectively. Closing means (6,
A branch sleeve cover provided with 7, 9). 2. A branch sleeve cover (1) attached to a charging portion (25) for connecting a distribution line (21) and a branch line (22) and used for electrical insulation, comprising a two-piece integral cylindrical shape. And a cylindrical branch line charging section insulating protector (5) communicating with a substantially central portion of the distribution line charging section insulating protector (3). A temporary casing (10, 11) made of a high-rigidity material is provided near both ends of the distribution line charging section insulating protection body, respectively. Closed means (7,
9) A branch sleeve cover formed integrally with the temporary wire holder. 3. A button (6a, 7a, 9a) supported so as to be able to protrude and retreat from the distribution line charging section insulating protection body (3).
And button holes (6b, 7b,
The branch sleeve cover according to claim 1 or 2, wherein a closing means (6, 7, 9) comprising: (b) is used. 4. A branch sleeve cover (31) attached to a charging portion (25) for connecting a distribution line (21) and a branch line (22) for electrical insulation, comprising a two-piece integral cylindrical shape. And a set of two semi-cylindrical branch line charging section insulators (35) formed integrally with the distribution line charger protection section. It has a casing (32) which is formed in a T-shape tubular from each high near both ends of the distribution line charging portion insulating protector
A wire temporary holder (40, 41) made of a rigid material is provided to protrude and retreat freely with respect to the distribution line charging section insulating protection body.
The buttons (37a, 39a) held and the buttons
A first button hole (37b, 39b) that can be engaged;
The closing means (37, 39) of the distribution line insulated protection of the live part
A branch sleeve cover formed integrally with the wire temporary holder in an opening of the body and provided with a second closing means (36) in the opening of the branch line charging section insulating protection body.