JPH038028Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a cable termination box useful in facilitating field assembly of a capacitor cone support.

(Technical background of the invention and its problems) In general, a capacitor cone is usually used to control the electric field in the termination box of an ultra-high voltage single-core OF cable.

By the way, such a capacitor cone may slide downward due to its gravity, and for this reason, the capacitor cone 1 is usually supported as shown in FIG.

That is, a screw 4 is formed on the outer periphery of an annular support 3 that surrounds the cable terminal and is placed on the cut end of the cable sheath 2, and a cylindrical metal fitting having a screw 5 formed on the inner periphery of this screw. 6 are screwed together.

An intermediate metal fitting 7 having an L-shaped cross section is attached to the upper end of the cylindrical metal fitting 6, and a horizontal flange of a support 8 for supporting the capacitor cone 1 is inserted into the screw hole formed in the horizontal part of the intermediate metal fitting 7. Bolt 1 passing through 9
The tip of 0 is screwed on.

However, in a cable termination box having such a configuration, when forming the capacitor cone 1, the intermediate fitting 7 becomes an obstacle to the forming operation, so the intermediate fitting 7 itself must be divided into two parts.
Further, since the cylindrical metal fitting 6 and the intermediate metal fitting 7 are used as assembly members between the support base 3 and the support 8 of the condenser cone, there is a problem in that alignment work on site becomes difficult.

(Purpose of the invention) The present invention has been made with the above-mentioned points in mind, and is intended to provide a cable termination box that allows for easy on-site assembly of a support structure for a capacitor cone.

(Summary of the invention) In this invention, the cable is inserted onto the cut end of the cable sheath, and the inner diameter is larger than the outer diameter of the cable insulator and smaller than the outer diameter of the cable sheath. The above object is achieved by placing the lower surface of an annular support on which the support for the capacitor cone is supported via an adjusting screw.

(Embodiment of the invention) Hereinafter, the invention will be explained based on the drawings of one embodiment. 1 with the same numbers attached to the same parts as in Figure 2.
In the figure, cable sheath 2 with corrugated aluminum sheath, etc.
The lower surface of the annular support base 3 near the inner peripheral edge is placed on the cut end of the annular support base 3 .

On the other hand, a support 8 that supports the conical part of the condenser cone 1 is in contact with the conical part, and an adjustment screw rod 11 is attached to a horizontal flange 9 formed at the lower end of the support 8.
is penetrated, and the lower end of this adjusting screw lever is in contact with the upper surface of the support base 3 near the outer peripheral edge thereof.

In the capacitor cone support structure constructed as described above, the weight of the capacitor cone is transmitted onto the cut end of the cable sheath 2 via the support 8, the adjusting screw rod 11, and the support base 3, so that the capacitor cone 1 is It will be supported by the cable sheath 2.

In addition, 12 and 13 in the figure are cable insulators 14.
Alternatively, it shows a semi-stop device consisting of a pipe 15 such as an aluminum pipe surrounding the cable sheath 2 and a packing 16 press-fitted between the pipe and the cable insulator 13 or the cable sheath.

(Effects of the invention) As described above, in the present invention, the tip of the adjustment screw penetrating the horizontal flange of the capacitor cone support is directly attached to the support stand placed on the cut end of the cable sheath. Because it is in contact with
There is no need for a cylindrical metal fitting or an intermediate metal fitting as in the past, that is, there is no need to pay attention to center alignment during on-site assembly.

Therefore, in the present invention, it is possible to provide a cable termination box that allows easy assembly of a support structure for a capacitor cone.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a main part of a cable termination box of the present invention, and FIG. 2 is a longitudinal cross-sectional view of a main part of a conventional cable termination box. DESCRIPTION OF SYMBOLS 1... Capacitor cone, 2... Cable sheath, 3... Support stand, 8... Capacitor cone support, 9... Horizontal flange, 11... Adjusting screw rod.

Claims (1)

[Scope of utility model registration request] On the cut end of the cable sheath, a lower surface of an annular support is placed which is fitted around the outer circumference of the cable insulator and whose inner diameter is larger than the outer diameter of the cable insulator and smaller than the outer diameter of the cable sheath. , a cable termination box characterized in that a support for a capacitor cone is supported on the support base via an adjusting screw thread.