CN214674250U - Cable grounding device for high-voltage current collection line terminal rod - Google Patents

Abstract

High voltage current collection circuit terminal pole cable earthing device, including the terminal pole, the fixed cross arm that is equipped with on the terminal pole, be equipped with fixed connection's high-pressure main cable on the cross arm, the branch is the phase line cable that makes progress of high-pressure main cable, is equipped with fixed connection's fixing device on the phase line cable, the last ground wire buckle that is equipped with of fixing device, ground wire cable passes ground wire buckle and fixed connection, ground wire cable winding phase line cable and at cable trident tandem connection to cross arm, cross arm and terminal pole are connected with the ground connection major network. The grounding cable is fixedly connected with the phase line cable through the fixing device, and the grounding cable is wound on the phase line cable, so that the weight of the phase line is borne by the fixing device, and the line can not be tripped due to the fact that the grounding cable falls off because the wiring position bears the weight under severe conditions of ice coating, thunderstorm, strong wind and the like.

Description

Cable grounding device for high-voltage current collection line terminal rod

Technical Field

The utility model relates to an electric power transmission field, especially a high voltage current collection circuit terminal pole cable earthing device.

Background

When high-voltage transmission voltage surpasses 35KV, the cable is mostly single core cable, single core cable is when the circular telegram operation, can form induced voltage at the shielding layer, the sinle silk of single core cable and metallic shield's relation, can regard as the primary winding of a transformer, will have magnetic force line of force chain aluminium package or metallic shield layer when single core cable sinle silk passes through the electric current, make its both ends induced voltage appear, short-circuit fault takes place in the circuit, when suffering operation overvoltage or lightning impulse, can form very high induced voltage on the shielding, perhaps puncture the sheath insulation even, consequently need shield the cable ground connection.

The existing high-voltage cable is grounded by connecting a grounding wire on a cross arm, the cross arm is grounded, but the swinging space is too large due to the overlong grounding wire, and the swinging weight is increased under the ice coating condition, so that the interface is easy to break or fall off.

Disclosure of Invention

The utility model aims to solve the technical problem that a high voltage current collection circuit terminal pole cable earthing device is provided, can be the reliable ground connection of high voltage phase line cable.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

high voltage current collection circuit terminal pole cable earthing device, including the terminal pole, the fixed cross arm that is equipped with on the terminal pole, be equipped with fixed connection's high-pressure main cable on the cross arm, the branch is the phase line cable that makes progress of high-pressure main cable, is equipped with fixed connection's fixing device on the phase line cable, the last ground wire buckle that is equipped with of fixing device, ground wire cable passes ground wire buckle and fixed connection, ground wire cable winding phase line cable and at cable trident tandem connection to cross arm, cross arm and terminal pole are connected with the ground connection major network.

Foretell fixing device includes the cable inclusion and screws and detains, and the cable inclusion screws through the screw with screwing and detains, and the cable inclusion is ring shape structure, and the phase line cable passes the ring and screws through the screw thread knot, is equipped with fixed connection's ground wire buckle on the inclusion, ground wire buckle and ground wire cable fixed connection.

Foretell cable package body includes that first parcel semicircle ring and second parcel semicircle ring, the connecting block that first parcel semicircle ring and second parcel semicircle ring accessible match connect into holistic tourus, and first parcel semicircle ring and second parcel semicircle ring both ends are equipped with connecting thread, are equipped with a plurality of open slots on the connecting thread, and the ground wire buckle wraps up one of them fixed connection of semicircle ring with first parcel semicircle ring and second.

The screwing buckle comprises a first screwing semicircular ring and a second screwing semicircular ring, the first screwing semicircular ring and the second screwing semicircular ring are provided with connecting holes corresponding to each other in a matched mode, and the screwing buckle inner ring is provided with threads.

The thread of the inner ring of the screwing buckle is tapered, and the semi-radial appearance direction of the thread is reduced.

The utility model provides a high voltage current collection circuit terminal pole cable earthing device is in the same place ground connection cable and phase line cable fixed connection through fixing device to twine the phase line cable with ground connection cable, make the weight of phase line bear by fixing device more, can not drop because of the wiring department bears weight and lead to the circuit tripping operation when covering bad conditions such as ice, thunderstorm, strong wind.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a schematic view of a fixture;

FIG. 4 is a side view of the fixture;

FIG. 5 is an exploded view of the fixture;

FIG. 6 is a schematic structural view of a cable enclosure;

fig. 7 is a schematic structural view of the screw fastener.

In the figure: the high-voltage main cable comprises a high-voltage main cable 1, a phase line cable 2, a grounding cable 3, a cable trigeminal 4, a cross arm 5, a fixing device 6, a cable wrapping body 61, a first wrapping semicircular ring 611, a second wrapping semicircular ring 612, a connecting block 613, connecting threads 614, an open slot 615, a screwing buckle 62, a first screwing semicircular ring 621, a second screwing semicircular ring 622, a connecting hole 623, a ground wire buckle 63, a threading hole 631 and a terminal rod 7.

Detailed Description

As shown in fig. 1 and 2, the high-voltage collecting line terminal rod cable grounding device includes a terminal rod 7, a cross arm 5 is fixedly arranged on the terminal rod 7, a high-voltage main cable 1 fixedly connected is arranged on the cross arm 5, the high-voltage main cable 1 is upwards branched into a phase cable 2, a fixing device 6 fixedly connected is arranged on the phase cable 2, a ground wire buckle 63 is arranged on the fixing device 6, the ground cable 3 penetrates through the ground wire buckle 63 and is fixedly connected, the ground cable 3 winds the phase cable 2 and is connected to the cross arm 5 in a junction mode at a cable fork 4, the cross arm 5 and the terminal rod 7 are connected with a grounding main network, the fixing device 6 fixes the ground cable 3 and the phase cable 2 into a whole, the fixing device bears the weight of the lower portion of the phase cable 2, and the weight of the ground cable 3 cannot fall off due to bearing.

As shown in fig. 3 and 4, the fixing device 6 includes a cable enclosure 61 and a screwing buckle 62, the cable enclosure 61 and the screwing buckle 62 are screwed by threads, the cable enclosure 61 is a circular ring structure, the phase cable 2 passes through a circular ring and is screwed by the threads, a ground wire buckle 63 of fixed connection is arranged on the enclosure 61, the ground wire buckle 63 is fixedly connected with the grounding cable 3, the device is fixedly connected with the phase cable 2 by the cable enclosure 61, so that the weight of the lower end of the grounding cable 3 is borne by the fixing device 6.

As shown in fig. 6, the cable enclosure 61 includes a first wrapping semicircular ring 611 and a second wrapping semicircular ring 612, the first wrapping semicircular ring 611 and the second wrapping semicircular ring 612 can be connected to form an integral annular body through a matching connection block 613, two ends of the first wrapping semicircular ring 611 and the second wrapping semicircular ring 612 are provided with connection threads 614, the connection threads 614 are provided with a plurality of open slots 615, and the ground wire buckle 63 is fixedly connected with one of the first wrapping semicircular ring 611 and the second wrapping semicircular ring 612.

As shown in fig. 6, the screwing buckle 62 includes a first screwing semicircular ring 621 and a second screwing semicircular ring 622, the first screwing semicircular ring 621 and the second screwing semicircular ring 622 are provided with corresponding connection holes 623, the inner ring of the screwing buckle 62 is provided with threads, and the grounding operation can be independently performed on the grounding cable 3 through the separated screwing buckle 62 and the cable inclusion body 61 under the condition that the wiring of the phase cable 2 is completed, so that the operation is simple and convenient.

The inner ring thread of the screwing buckle 62 is tapered, the semi-radial direction of the thread is reduced, when the screwing buckle 62 is screwed, the radius of the contact part of the screwing buckle and the thread is gradually reduced, the connecting thread 614 is driven to be tightened towards the open slot 615, the inner ring of the thread is enabled to gradually press the phase cable 2, and the grounding cable 3 and the phase cable 2 can be firmly fixed together under the condition that the phase cable 2 is not damaged.

Claims (5)

1. High voltage current collection circuit terminal pole cable earthing device, characterized by: including terminal pole (7), fixed cross arm (5) that is equipped with on terminal pole (7), be equipped with fixed connection's high-pressure main cable (1) on cross arm (5), high-pressure main cable (1) branch upwards is phase line cable (2), be equipped with fixed connection's fixing device (6) on phase line cable (2), be equipped with ground wire buckle (63) on fixing device (6), ground wire buckle (63) and fixed connection are passed in ground wire cable (3), ground wire cable (3) winding phase line cable (2) and at cable trident (4) tandem connection to cross arm (5), cross arm (5) and terminal pole (7) are connected with the ground connection major network.

2. The high-voltage collecting line terminal rod cable grounding device according to claim 1, wherein the fixing device (6) comprises a cable wrapping body (61) and a screwing buckle (62), the cable wrapping body (61) and the screwing buckle (62) are screwed by threads, the cable wrapping body (61) is of a circular ring structure, the phase cable (2) penetrates through the circular ring and is screwed by the screwing buckle, a fixedly connected ground wire buckle (63) is arranged on the wrapping body (61), and the ground wire buckle (63) is fixedly connected with the ground cable (3).

3. The high-voltage collecting line terminal rod cable grounding device according to claim 2, wherein the cable wrap body (61) comprises a first wrapping semicircular ring (611) and a second wrapping semicircular ring (612), the first wrapping semicircular ring (611) and the second wrapping semicircular ring (612) can be connected into an integral annular body through matched connecting blocks (613), connecting threads (614) are arranged at two ends of the first wrapping semicircular ring (611) and the second wrapping semicircular ring (612), a plurality of open grooves (615) are formed in the connecting threads (614), and the ground wire buckle (63) is fixedly connected with one of the first wrapping semicircular ring (611) and the second wrapping semicircular ring (612).

4. The high-voltage collecting line terminal rod cable grounding device according to claim 2, wherein the tightening buckle (62) comprises a first tightening semicircular ring (621) and a second tightening semicircular ring (622), the first tightening semicircular ring (621) and the second tightening semicircular ring (622) are provided with corresponding connecting holes (623), and an inner ring of the tightening buckle (62) is provided with threads.

5. The high voltage collector line terminal rod cable grounding device according to claim 4, wherein: the inner ring thread of the screwing buckle (62) is tapered, and the semi-radial appearance direction of the thread is reduced.

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