CN218005859U - Cable device suitable for transition power supply of 10kV insulated cable line - Google Patents

Abstract

The utility model discloses a cable device suitable for 10kV insulated cable line transition power supply, including a plurality of butt joint casees, intermediate cable and end cable, each is symmetrical to set up two left and right plug heads in the case, and the outer end of plug head can dismantle the lateral wall trompil department of connecting conducting rod to the butt joint case, and the lateral wall trompil department connects the cable shutoff pipe; the adjacent butt joint boxes are connected and fixed with a middle cable through cable plugging pipes, the cable plugging pipes outside the first butt joint box and the last butt joint box are respectively connected with end cables, and the tail ends of the two end cables are connected to the tower. The transition cable is processed in a segmented mode, all segments are connected through the butt joint boxes, the butt joint boxes are connected with the cable in a splicing fixing mode, and the whole device can flexibly adapt to transition power supplies with different lengths. The butt joint box and the parts connected with the butt joint box can be manufactured in advance and assembled to be transported to a construction site integrally, the cable and the cable plugging pipe are fixedly connected in an inserting mode, the end cable is connected to the tower, and the plug-and-play quick power supply effect is achieved.

Description

Cable device suitable for transition power supply of 10kV insulated cable line

Technical Field

The utility model belongs to power transmission and distribution integrated equipment field specifically is a cable device suitable for 10kV insulated cable line transition power supply.

Background

When the existing overhead line is in uninterrupted spanning construction, the transition cable basically adopts the mode of directly connecting the whole section. Because the power failure distance of each project is inconsistent, the cable length is very poor to select, and some power failure projects are mountainous areas or fields, the field construction difficulty is large, and the cable is not easy to carry and expand. In addition, the transition cable needs to be powered off for a short time when being connected and detached; the net stage of sealing and tearing open can not have a power failure, if the construction unit is violating the regulations and is carrying out nearly electric operation, have the risk of electrocution by mistake.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an operation safe swift cable device gives nominal cross-section and is 25 ~ 400mm ² The cross-linked polyethylene insulated power cable line is used for transition power supply, the problem that power failure of a distribution network line is difficult in infrastructure crossing is effectively solved, various power failure environments are met, and the production operation efficiency is improved.

The utility model provides a cable device suitable for transition power supply of 10kV insulated cable line, including a plurality of butt joint casees, intermediate cable and end cable, each pair connects incasement symmetry and sets up two left and right plug heads, and the outer end of plug head can dismantle the lateral wall trompil department of connecting conducting rod to butt joint case, and the lateral wall trompil department connects cable shutoff pipe; the adjacent butt joint boxes are connected and fixed with a middle cable through cable plugging pipes, the cable plugging pipes outside the first butt joint box and the last butt joint box are respectively connected with end cables, and the tail ends of the two end cables are connected to the tower.

In an embodiment of the above apparatus, the butt-joint box is a rectangular horizontal box, and includes an upper box and a lower box which are butt-jointed, and the lower edge of the upper box and the upper edge of the lower box are respectively provided with the installation grooves of the cable plugging pipe.

In an embodiment of the above device, the inner walls of the upper box and the lower box are symmetrically fixed with baffles extending out of the side plates for limiting the end faces of the intermediate cable/end cable.

In an embodiment of the above device, a conductive copper bar is fixed at the middle position of the bottom surface of the lower box body, an insulating sleeve is fixed on the upper surface of the conductive copper bar, and the conductive copper bar is connected with a grounding copper bar through a copper woven belt.

In one embodiment of the above device, the inner wall of the top plate of the upper box body is provided with an insertion component, and the insertion component is assembled with the top of the side plate frame.

In an embodiment of the above apparatus, the insertion and extraction heads are horizontally inverted T-shaped, the two insertion and extraction heads are arranged with the horizontal arms facing each other, the lower ends of the electrical conductors are inserted into the conductive copper bars, and the outer walls of the two insertion and extraction heads are positioned by the insulating sleeves.

In one embodiment of the above device, the conductive rod has a connecting plate at its end and is fixed to the baffle plates of the upper and lower cases.

In an embodiment of the above apparatus, a support assembly for supporting the conductive rod is disposed in the docking box.

In one embodiment of the above device, the intermediate cable and the end cable are both monocables.

The utility model discloses a carry out segmentation to the transition cable and handle, connect through the butt joint case between each segmentation, the butt joint case adopts the fixed mode of pegging graft with cable junction, makes the transition power supply that the use of whole device can adapt to different length in a flexible way. The butt joint box and the parts connected with the butt joint box can be manufactured in advance and assembled to be transported to a construction site integrally, the construction site only needs to plug and fix the cable and the cable plugging pipe of the butt joint box, the end cable is connected to the pole tower, the plug-and-play quick power supply effect can be realized, quick and effective switching in a capital construction crossing distribution network line can be realized through the device, construction under various different environments can be met, and meanwhile, the device can be used repeatedly.

Drawings

Fig. 1 is a schematic view of a usage status of an embodiment of the present invention.

Fig. 2 is an enlarged schematic structural view of the junction box of fig. 1.

Fig. 3 is a schematic top view of the docking box.

FIG. 4 is a schematic top view of the docking pod with the top plate of the upper pod open.

Fig. 5 is an enlarged schematic view of a portion a in fig. 2.

Fig. 6 is an enlarged schematic view of a portion B in fig. 2.

Sequence numbers in the figure:

1-butt joint box; 2-an intermediate cable; 3-a termination cable;

11-an upper tank; 111-connecting member with plug-in slot; 12-a lower box; 13-a baffle;

14-plug head, 15-conducting rod; 151-a connecting plate; 16-cable closure pipe;

17-a conductive copper bar; 18-an insulating sleeve; 19-a ground copper bar;

XSQ-charged display; the BHQ-other plug-in head is connected with a sheath protector.

Detailed Description

As shown in fig. 1, the 10kV fabricated transition cable apparatus disclosed in this embodiment includes a junction box 1, an intermediate cable 2, and a terminal cable 3. The number of the butt joint boxes 1 is determined according to actual needs, the adjacent butt joint boxes 1 are connected through an intermediate cable, the first butt joint box and the last butt joint box are connected to a tower through end cables, transition power supply of a power transmission line is achieved, and the intermediate cable 2 and the end cables 3 are single-core cables.

As can be seen from fig. 1 and 2:

the butt joint box 1 is a rectangular horizontal box body, is made of an insulating plate, has a protection grade reaching IP65, two plug heads 14 are symmetrically arranged in an inner cavity of the box body, the two plug heads 14 are respectively connected to the side wall of the box body of the butt joint box 1 through conducting rods 15, cable plugging pipes 16 are arranged at the positions, corresponding to the conducting rods, of the side wall of the box body, and the middle cable 2 and/or the end cable 3 are connected through the cable plugging pipes.

In order to facilitate the assembly of the internal structure of the butt-joint box 1, the butt-joint box 1 is provided with an upper box body 11 and a lower box body 12 which are butt-jointed, the lower edge of the upper box body 11 and the upper edge of the lower box body 12 are respectively provided with a mounting groove of a cable plugging pipe 16, namely, the butt-jointed surfaces of the upper box body 11 and the lower box body 12 are positioned on the axial central plane of the cable plugging pipe 16.

Baffles 13 extending out of the side plates are symmetrically fixed on the inner walls of the upper box body 11 and the lower box body 12 and used for limiting the end surfaces of the middle cable 2 and the end cable 3.

The center of the bottom of the lower box body 12 is provided with a conductive copper bar 17, the upper surface of the conductive copper bar is fixed with an insulating sleeve 18, and the conductive copper bar is connected with a grounding copper bar 19 through a copper woven belt.

The plug head 14 is horizontally inverted T-shaped, the two plug heads are arranged with the horizontal arms back to back, the lower end of the electric conductor is inserted on the conductive copper bar 17, and the outer walls of the two plug heads are positioned by the insulating sleeve 18. Has the characteristics of full insulation, full sealing, full protection, corrosion resistance, pollution resistance, condensation resistance, frost resistance and the like.

The conductive rod 15 has a connecting plate 151 at its end, which is fixed to both of the baffles 13. A conductive rod supporting member is arranged in the butt joint box 1.

The inner wall of the top plate of the upper box body 11 is provided with a connecting component 111 with a plug-in slot, and the top plate is assembled at the upper end of the side plate frame of the upper box body 11 through the plug-in slot.

One plug head is connected with an electrified display XSQ, the other plug head is connected with a protective layer protector BHQ, and the protective layer protector is connected with a grounding copper bar. Electrified display and sheath protector are outsourcing spare, and electrified display can demonstrate directly perceivedly whether electrical equipment has operating voltage's warning nature safety device. When the equipment has operating voltage, the display window of the display emits flash to warn people that the high-voltage equipment is electrified, and no indication is provided when no electricity exists; the sheath protector functions to limit induced voltages and fault overvoltages on the power cable's metal sheath.

When the device is used, the number of the butt-joint boxes is determined according to actual needs, the number and the length of each intermediate cable are determined, and the length of the end cable is determined. And arranging the lower box body of the butt joint box on the leveled ground, then respectively inserting the end heads of the intermediate cables into the corresponding cable plugging pipes, installing a clamp outside the cable plugging pipes for clamping, inserting one end of each end cable into the corresponding cable plugging pipe, and connecting the other end of each end cable to the tower.

The butt joint box and the parts connected with the butt joint box can be prefabricated, assembled and transported to a construction site, transition power supply of a line can be realized only by connecting and fixing the middle cable and the end cable with the butt joint box on the construction site, and the operation is simple and rapid.

In the 10kV distribution network crossing construction, cables of different specifications can be selected according to different line loads, corresponding butt joint boxes can be used in a plug-and-play mode, power supply can be recovered quickly, and the cables and the box bodies can be disassembled and assembled without disassembling cable heads. The device has light weight, is convenient to construct on site, transport and store, can be circularly used in various severe environments, and safely and reliably realizes the uninterrupted power supply of the infrastructure construction to cross the distribution network line.

Claims (9)

1. The utility model provides a cable assembly suitable for 10kV insulated cable line transition power supply which characterized in that: the device comprises a plurality of butt-joint boxes, intermediate cables and end cables, wherein the butt-joint boxes are made of insulating materials, a left plug head and a right plug head are symmetrically arranged in each butt-joint box, the outer ends of the plug heads are detachably connected with conducting rods to side wall holes of the butt-joint boxes, and the side wall holes are connected with cable plugging pipes; the adjacent butt joint boxes are connected and fixed with a middle cable through cable plugging pipes, the cable plugging pipes outside the first butt joint box and the last butt joint box are respectively connected with end cables, and the tail ends of the two end cables are connected to the tower.

2. The cable assembly adapted for transition powering of 10kV insulated cable lines as claimed in claim 1, wherein: the butt joint box is a rectangular horizontal box body and comprises an upper box body and a lower box body which are spliced, and the lower edge of the upper box body and the upper edge of the lower box body are respectively provided with installation grooves of the cable plugging pipes.

3. The cable assembly adapted for transition powering of 10kV insulated cable lines as claimed in claim 2, wherein: and baffles extending out of the side plates are symmetrically fixed on the inner walls of the upper box body and the lower box body and used for limiting the end surfaces of the intermediate cables/end cables.

4. The cable assembly adapted for transition powering of 10kV insulated cable lines of claim 2, wherein: the bottom surface intermediate position department of lower part box is fixed with conductive copper bar, and conductive copper bar's last fixed surface has insulation support, and conductive copper bar is connected with the ground copper bar through the copper braid over braid.

5. The cable assembly adapted for transition powering of 10kV insulated cable lines as claimed in claim 2, wherein: and the inner wall of the top plate of the upper box body is provided with an inserting component which is assembled with the top of the side plate frame.

6. The cable assembly adapted for transition powering of 10kV insulated cable lines as claimed in claim 4, wherein: the plug heads are horizontally inverted T-shaped, the two plug heads are arranged in a manner of being opposite to each other by virtue of horizontal arms, the lower ends of electric conductors of the two plug heads are inserted into the conductive copper bars, and the outer walls of the two plug heads are positioned by virtue of the insulating sleeves.

7. A cable assembly suitable for over-powering a 10kV insulated cable run as claimed in claim 3, characterized in that: the tail end of the conducting rod is provided with a connecting plate which is fixed with the baffle plates of the upper box body and the lower box body.

8. The cable assembly adapted for transition powering of 10kV insulated cable lines as claimed in claim 1, wherein: and a supporting component for supporting the conducting rod is arranged in the butt joint box.

9. The cable assembly adapted for transition powering of 10kV insulated cable lines of claim 1, wherein: the middle cable and the end cable are both single-core cables.

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