JPH036123Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a conductor support device that supports a conductor such as a bus bar of a control center with an insulating support, and particularly relates to a case where the outside of the conductor is covered with an insulating coating material. It is something.

[Prior art]

Generally, conductors such as busbars in a control center are supported by penetrating vertically through multiple stages of insulating supports provided at predetermined intervals. An insulating coating is installed to cover the outside of the conductor,
Efforts are made to prevent conductor ground faults, short circuits, and electric shocks. Ideally, this sheathing material should cover the outside of the conductor over the entire length of the conductor, but if this is done, external pressure from the support will be applied to the sheathing material at the supporting portion of the conductor, causing the sheathing material to There is a disadvantage that deterioration occurs, and for this reason, the covering material is cut off at least on the upper and lower surfaces of the support so that the outside of the conductor above and below the support is covered with the covering material.

That is, in the conventional conductor support device of this type, the first
It is constructed as shown in Figures 3 to 3, and three-phase vertical conductors 1R, 1S, and 1T each having a T-shaped cross section are arranged side by side in the left-right direction, and each conductor 1R is mounted on an insulating support 2 that is long in the left-right direction. , 1S, 1T are
Each conductor 1R, 1S, 1 is supported through the vertical direction with a part of each leading out forward.
Insulating sheathing materials 3R, 3S, and 3T each having a T-shaped cross section are inserted into T from above and below, and each of the sheathing materials 3R, 3S, and 3T are cut off at the boundary with the support 2, and each conductor 1R, 1S, The outside of 1T is
A cut edge 3R' along the top and front surface of the support 2,
Covering materials 3R, 3S, 3T with 3S', 3T' and cut edges 3R' along the lower surface and front surface of the support 2,
It is covered with covering materials 3R, 3S, and 3T having 3S' and 3T'. In addition, each conductor 1R, 1S, 1T
The portions of the support body 2 extending from the front surface thereof are respectively covered by the respective ends of the upper and lower covering materials 3R, 3S, and 3T.

By the way, in the above-mentioned conductor support device, it is very difficult to precisely align the cut edges 3R', 3S', 3T' with the surface of the support 2 due to the processing accuracy of the insulating sheathing materials 3R, 3S, 3T. Due to this difficulty, gaps are created between the cut ends 3R', 3S', 3T' and the surface of the support 2, and the conductors 3R, 3S,
There is a drawback that 3T is exposed to the outside and insulation protection cannot be performed.

Therefore, if a conductive object such as a tool is accidentally brought into contact with the support 2 during maintenance or inspection inside the control center, the conductor 1R,
There is a risk of accidents such as 1S and 1T ground faults and electric shocks.

[Purpose of invention]

This invention was made with the above-mentioned points in mind, and aims to reliably cover the gap between the cut end of the insulating sheathing material and the support, and to strengthen the insulation of the conductor.

[Structure of the idea]

In this invention, a vertical conductor is supported by penetrating the insulating support, and the outside of the conductor is
In a conductor support device covered with an insulating covering material cut off at least on the upper and lower surfaces of the support, a groove is formed on the outer periphery of the conductor on the upper and lower surfaces of the supporting material, and a groove is formed at the cut end of the insulating covering material. is inserted into the groove, and the conductor between the cut end and the bottom surface of the groove is covered by the inner peripheral surface of the groove.

[Effect of idea]

Therefore, according to the conductor support device of this invention, the cut end of the insulating coating covering the outside of the conductor is inserted into the groove of the support, and the conductor in the gap between the cut end and the bottom of the groove is inserted into the inner periphery of the groove. Since it can be covered with a surface, it prevents the conductor from being exposed to the outside and strengthens the insulation of the conductor.This prevents accidents such as conductor ground faults and electric shocks, and also prevents the cut edges of the sheathing material from being exposed. It is possible to insulate and protect the conductor even if it is not formed with high precision, and has the effect of reducing the number of processing steps for the covering material.

〔Example〕

Next, this invention will be described in the fourth section showing its practical example.
This will be explained in detail with reference to the drawings below. Note that the same symbols as above indicate the same or corresponding items.

First, FIGS. 4 to 6 showing one embodiment will be explained.

In these drawings, the difference from the above is that on the surface of the insulating support 2, that is, on the upper and lower front surfaces, along the conductors 1R, 1S, 1T.
Protrusions 4R, 4S, 4 separated by a certain distance from S, 1T
While forming T continuously on each side,
Conductors 1R, 1S and
Each conductor 1R communicates with the 1T through hole 2',
Grooves 5R and 5 facing the outer periphery of 1S and 1T, respectively
S, 5T, and each conductor 1R, 1S, 1
The cut ends 3R', 3S', 3T' of the insulating sheathing materials 3R, 3S, 3T covering the outside of the T are connected to the respective grooves 5R, 3S', 3T'.
This is the point inserted in 5S and 5T.

Here, the cut ends 3 of the covering materials 3R, 3S, 3T
R′3S′, 3T′ are grooves 5R, 5 due to their machining accuracy.
It does not fit accurately with the bottom surface of S and 5T, and a gap is created between the bottom surface and the protrusion 4.
Inner surfaces of R, 4S, 4T, i.e. grooves 5R, 5
The conductors 1R, 1S, and 1T in the gaps are covered without being exposed to the outside.

Therefore, according to the embodiment, the covering material 3
The cut ends 3R', 3S', 3T' of R, 3S, 3T are covered by the inner peripheral surfaces of the grooves 5R, 5S, 5T, respectively.
Cut ends 3R', 3S', 3T' and grooves 5R, 5S, 5T
The conductors 1R, 1S, 1T in this part can be covered, so the conductors 1R, 1S, 1T in this part
It protects the conductor 1R and strengthens the insulation even if a conductive object accidentally comes into contact with the support 2.
1S, 1T can prevent accidents such as ground faults and electric shocks, is safe, and does not wrinkle, covering materials 3R, 3
Since the conductors 1R, 1S, and 1T can be insulated and protected without making the machining accuracy of the cut ends 3R', 3S', and 3T' of S and 3T extremely strict, the number of machining steps for the sheathing materials 3R, 3S, and 3T can be reduced. It is something that can be achieved.

Next, FIG. 7 showing another embodiment will be explained.

What is shown in the figure is grooves 5 on the outer periphery of conductors 1R, 1S, and 1T formed across the upper and lower front surfaces of support body 2.
R, 5S, and 5T are obtained by directly recessing the support 2 without forming a protrusion, and the groove 5 is
The cut ends 3R', 3S', 3T' of the covering materials 3R, 3S, 3T are inserted into R, 5S, 5T, and the same effect as described above can be obtained.

Note that this invention is not limited to the above, and the conductor is held between a pair of cleats in which a groove for inserting the conductor is formed, and the conductor is supported by passing through an insulating support made of the pair of cleats. The same can be applied to the conductor support device of the above-mentioned method. In this case, grooves are formed in the upper and lower surfaces of the support body, that is, a pair of cleats, into which the cut ends of the insulation coating are inserted, thereby forming a groove between the cut ends and the cleats. conductor can be covered by the inner peripheral surface of the groove.

[Brief explanation of the drawing]

Figures 1 to 3 show a conventional conductor support device, with Figure 1 being a cutaway plan view, Figures 2 and 3 being a partial perspective view and a cutaway front view, and Figure 4 and the following drawings showing this device. An embodiment of the invented conductor support device is shown, and FIGS. 4 to 6 show one embodiment, FIG. 4 is a cutaway plan view, and FIGS. 5 and 6 are a partial perspective view and a cutaway front view. , FIG. 7 is a partially cutaway front view of another embodiment. 1R, 1S, 1T...Conductor, 2...Support, 3
R, 3S, 3T...Insulating coating material, 3R', 3S', 3
T'...cut end, 5R, 5S, 5T...groove.

Claims (1)

[Scope of utility model registration request] In the conductor support device, the conductor is supported by penetrating the conductor in the vertical direction through an insulating support, and the outside of the conductor is covered with an insulating covering material cut off at least on the upper and lower surfaces of the support. Grooves are formed on the outer periphery of the conductor on the upper and lower surfaces of the body, the cut ends of the insulating coating are inserted into the grooves, and the inner peripheral surface of the groove allows the A conductor support device that covers the conductor.