Wiring device for ice-melting optical cable

Abstract

The utility model discloses a junction device for an optical cable capable of melting ice, which comprises a shell, a support frame, a fiber coiling plate, an insulating plate and a porcelain joint, the support frame is fixed in the shell, the fiber coiling plate is fixed on one side of the support frame, one end of the insulating plate is fixed at the upper end of the other side of the support frame, and the porcelain joint is fixed on the insulating plate. According to the utility model, the porcelain joint and the insulating plate are additionally arranged on the rear side of the fiber coiling plate, the creepage distance between the porcelain joint and the bolt is increased through the structural design of the insulating plate, the conventional stainless steel bolt is replaced by the nylon bolt, and the silicone adhesive is coated on the bolt, so that the service life of the bolt is prolonged. The problem that a wiring device in the prior art is prone to power generation breakdown is solved.

Description

Technical Field

[0001] The utility model relates to a wiring device, in particular to a wiring device for ice-melting optical cables, belonging to the technical field of optical cable joint boxes. Background Art

[0002] Rain, snow and ice disasters will have a great impact on OPGW lines and pose a great threat to the safety of the power grid. Once the thickness of ice covering the overhead ground wire exceeds the limit, it will cause accidents such as tower collapse, line tripping and OPGW ground wire breakage, thus causing communication interruption and power grid collapse, resulting in catastrophic consequences.

[0003] Because the suspension point of the overhead ground wire is higher than the phase conductor, the ambient temperature is low, and there is no operating current, the ground wire icing is more serious than the conductor icing under the same icing section. When severe icing occurs, the overhead ground wire is prone to breakage and other damages under the gravity of ice, causing the mechanical system of the transmission line, tower, etc. to become unstable, which may lead to line tripping, tower tilting, or even tower collapse accidents. At the same time, in the case of icing, the sag height between the ground wire and the OPGW may decrease, increasing the probability of discharge danger between the conductor and the ground wire.

[0004] The new type of ice-melting OPGW optical cable that has appeared in recent years has a better ice-melting effect on the ground wire. However, the porcelain joints and support frames of the optical cable junction box are fixed in the conventional way, and the fixing bolts are made of stainless steel. The distance between the fixing bolts and the conductor is too close, which leads to discharge and easy breakdown. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a wiring device for ice-melting optical cables, so as to solve the problem that the wiring devices in the prior art are prone to breakdown.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A wiring device for ice-melting optical cables comprises an outer shell, a support frame, a fiber coil board, an insulating board and a porcelain joint. The support frame is fixed in the outer shell, the fiber coil board is fixed on one side of the support frame, one end of the insulating board is fixed on the upper end of the other side of the support frame, and the porcelain joint is fixed on the insulating board.

[0008] Furthermore, the shell is made of steatite porcelain or alumina, so that the shell has good high temperature resistance.

[0009] Furthermore, the support frame is arranged in the shell along the vertical direction, and the lower end of the support frame is fixed to the bottom of the shell.

[0010] Furthermore, the insulating plate is arranged in the horizontal direction, and one end of the insulating plate is fixed to the upper end of the other side of the support frame. Compared with the traditional optoelectronic separation junction box, the structure is more compact and reasonable, and the volume is reduced by more than 50%. Moreover, the distribution on both sides makes the connection of optical fibers and the installation of fiber trays more convenient.

[0011] Furthermore, the insulating board is a polyimide insulating board. The withstand voltage level of the polyimide insulating board can reach 12kV, which can increase the creepage distance of the wiring device by 5% and is less likely to be broken down by discharge. In addition, the polyimide insulating board has good salt corrosion resistance and can be applied to harsh environments such as high-salt areas.

[0012] Furthermore, the porcelain joint is fixed to the upper side of the insulating plate by insulating bolts.

[0013] Furthermore, the insulating bolt is made of nylon.

[0014] Furthermore, silicone glue is applied to the connection between the insulating bolt, the insulating plate and the porcelain joint. The traditional stainless steel bolts are replaced with insulated nylon bolts, and silicone glue is applied to the outside of the insulating bolts, so that the DC voltage resistance level at the insulating bolts is increased from 5kV to 7kV, and the withstand voltage performance is improved by 40%.

[0015] Compared with the prior art, the utility model has the following advantages and effects: the utility model adds a porcelain joint and an insulating plate on the rear side of the fiberboard, and the structural design of the insulating plate increases the creepage distance between the porcelain joint and the bolt. At the same time, the existing stainless steel bolts are replaced with nylon bolts, and silicone glue is applied to the bolts, which solves the problem that the wiring device in the prior art is prone to power generation breakdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of a wiring device for ice-melting optical cables.

[0017] Figure 2 The utility model is an external schematic diagram of a wiring device for ice-melting optical cables. DETAILED DESCRIPTION

[0018] In order to elaborate on the technical scheme adopted by the utility model to achieve the predetermined technical purpose, the technical scheme in the embodiment of the utility model will be clearly and completely described in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a partial embodiment of the utility model, not all of the embodiments, and the technical means or technical features in the embodiment of the utility model can be replaced without paying creative labor. The utility model will be described in detail with reference to the drawings and in combination with the embodiments. Example 1

[0019] like Figure 1 and Figure 2 As shown, the utility model is a wiring device for ice-melting optical cables, comprising an outer shell 1, a support frame 2, a fiber coil board 3, an insulating plate 4 and a porcelain joint 5. The support frame 2 is fixed in the outer shell 1, the fiber coil board 3 is fixed on one side of the support frame 2, one end of the insulating plate 4 is fixed on the upper end of the other side of the support frame 2, and the porcelain joint 5 is fixed on the insulating plate 4.

[0020] The shell 1 is made of steatite porcelain and has good high temperature resistance. The shell 1 as a whole adopts a truncated cone structure with a diameter of the upper end smaller than that of the lower end, and the upper end of the shell 1 is a hemispherical structure.

[0021] The support frame 2 is vertically arranged in the housing 1, and the lower end of the support frame 2 is detachably fixed to the bottom of the housing 1 by bolts. The fiber tray 3 is vertically arranged and fixed to one side of the support frame 2 by long bolts for connecting the OPGW ground wire optical fiber.

[0022] The insulating plate 4 is arranged in the horizontal direction, and one end of the insulating plate 4 is fixed to the upper end of the other side of the support frame 3. The fiber plate 3 and the porcelain joint 5 are respectively distributed on both sides of the support frame 2. The fiber plate 3 is used for the connection of the optical cable part, and the porcelain joint 5 is used for the connection and conduction of the cable. The utility model adopts such a structural design. Compared with the traditional optoelectronic separation junction box, the structure is more compact and reasonable, and the volume is reduced by more than 50%. Moreover, the distribution on both sides makes the connection of the optical fiber and the installation of the fiber plate more convenient.

[0023] The insulating board 4 is made of polyimide insulating board, and the withstand voltage level of the polyimide insulating board can reach 12kV, which can increase the creepage distance of the wiring device by 5% and is less likely to be broken down by discharge. In addition, the polyimide insulating board has good salt corrosion resistance and can be applied to harsh environments such as high-salt areas.

[0024] The porcelain joint 5 is fixed to the upper side of the insulating plate 4 by insulating bolts. Corresponding screw holes are provided on the bottom of the porcelain joint 5 and the insulating plate 4, and the insulating bolts are passed through the screw holes of the insulating plate 4 and the bottom of the porcelain joint 5 from the lower side of the insulating plate 4 upward and locked.

[0025] The insulating bolts are made of nylon. Silicone glue is applied to the joints between the insulating bolts, the insulating plate 4 and the porcelain joint 5. The traditional stainless steel bolts are replaced with insulated nylon bolts, and silicone glue is applied to the outside of the insulating bolts, so that the DC voltage rating at the insulating bolts is increased from 5kV to 7kV, and the withstand voltage performance is improved by 40%. Example 2

[0026] like Figure 1 and Figure 2As shown, the utility model is a wiring device for ice-melting optical cables, comprising an outer shell 1, a support frame 2, a fiber coil board 3, an insulating plate 4 and a porcelain joint 5. The support frame 2 is fixed in the outer shell 1, the fiber coil board 3 is fixed on one side of the support frame 2, one end of the insulating plate 4 is fixed on the upper end of the other side of the support frame 2, and the porcelain joint 5 is fixed on the insulating plate 4.

[0027] The housing 1 is made of alumina and has good high temperature resistance. The housing 1 as a whole adopts a truncated cone structure with a diameter of the upper end smaller than that of the lower end, and the upper end of the housing 1 is a hemispherical structure.

[0028] The support frame 2 is vertically arranged in the housing 1, and the lower end of the support frame 2 is detachably fixed to the bottom of the housing 1 by bolts. The fiber tray 3 is vertically arranged and fixed to one side of the support frame 2 by long bolts for connecting the OPGW ground wire optical fiber.

[0029] The insulating plate 4 is arranged in the horizontal direction, and one end of the insulating plate 4 is fixed to the upper end of the other side of the support frame 3. The fiber plate 3 and the porcelain joint 5 are respectively distributed on both sides of the support frame 2. The fiber plate 3 is used for the connection of the optical cable part, and the porcelain joint 5 is used for the connection and conduction of the cable. The utility model adopts such a structural design. Compared with the traditional optoelectronic separation junction box, the structure is more compact and reasonable, and the volume is reduced by more than 50%. Moreover, the distribution on both sides makes the connection of the optical fiber and the installation of the fiber plate more convenient.

[0030] The insulating board 4 is made of polyimide insulating board, and the withstand voltage level of the polyimide insulating board can reach 12kV, which can increase the creepage distance of the wiring device by 5% and is less likely to be broken down by discharge. In addition, the polyimide insulating board has good salt corrosion resistance and can be applied to harsh environments such as high-salt areas.

[0031] The porcelain joint 5 is fixed to the upper side of the insulating plate 4 by insulating bolts. Corresponding screw holes are provided on the bottom of the porcelain joint 5 and the insulating plate 4, and the insulating bolts are passed through the screw holes of the insulating plate 4 and the bottom of the porcelain joint 5 from the lower side of the insulating plate 4 upward and locked.

[0032] The insulating bolts are made of nylon. Silicone glue is applied to the joints between the insulating bolts, the insulating plate 4 and the porcelain joint 5. The traditional stainless steel bolts are replaced with insulated nylon bolts, and silicone glue is applied to the outside of the insulating bolts, so that the DC voltage rating at the insulating bolts is increased from 5kV to 7kV, and the withstand voltage performance is improved by 40%.

[0033] The utility model adds a porcelain joint and an insulating plate on the rear side of the fiberboard. The structural design of the insulating plate increases the creepage distance between the porcelain joint and the bolts. At the same time, the existing stainless steel bolts are replaced with nylon bolts, and silicone glue is applied to the bolts, thereby solving the problem that the wiring device in the prior art is prone to power generation breakdown.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles of the present invention, without departing from the content of the technical solution of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. A wiring device for ice-melting optical cables, characterized in that: It includes an outer shell, a support frame, a fiber plate, an insulating plate and a porcelain joint. The support frame is fixed in the outer shell, the fiber plate is fixed on one side of the support frame, one end of the insulating plate is fixed on the upper end of the other side of the support frame, and the porcelain joint is fixed on the insulating plate.

2. The ice-melting optical cable wiring device according to claim 1, characterized in that: The shell is made of steatite porcelain or alumina.

3. The ice-melting optical cable wiring device according to claim 1, characterized in that: The support frame is arranged in the shell along the vertical direction, and the lower end of the support frame is fixed to the bottom of the shell.

4. The ice-melting optical cable wiring device according to claim 3, characterized in that: The insulating plate is arranged in a horizontal direction, and one end of the insulating plate is fixed to the upper end of the other side of the supporting frame.

5. The ice-melting optical cable wiring device according to claim 4, characterized in that: The insulating plate is a polyimide insulating plate.

6. The ice-melting optical cable wiring device according to claim 1, characterized in that: The porcelain joint is fixed to the upper side of the insulating plate by means of insulating bolts.

7. The ice-melting optical cable wiring device according to claim 6, characterized in that: The insulating bolt is made of nylon.

8. The ice-melting optical cable wiring device according to claim 6, characterized in that: Silicone glue is applied to the connection between the insulating bolt, the insulating plate and the porcelain joint.

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