CN213905911U - Overhead incoming line system for high-voltage cable of centrally installed switchgear - Google Patents
Overhead incoming line system for high-voltage cable of centrally installed switchgear Download PDFInfo
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- CN213905911U CN213905911U CN202022757547.XU CN202022757547U CN213905911U CN 213905911 U CN213905911 U CN 213905911U CN 202022757547 U CN202022757547 U CN 202022757547U CN 213905911 U CN213905911 U CN 213905911U
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Abstract
The utility model relates to the technical field of power equipment, in particular to an overhead incoming line system of a high-voltage cable of an intermediate switch cabinet, which comprises an intermediate switch cabinet body and a high-voltage cable; the top of the middle switch cabinet body is inserted with a high-voltage bushing; the end part of the high-voltage cable is provided with a T-shaped head, a pressure joint is sleeved in the T-shaped head, the pressure joint is connected with the high-voltage cable, and the pressure joint and the high-voltage sleeve are tightly connected through a stud; the top of the T-shaped head is sequentially provided with a blocking head and a protective cover; the high-voltage cable protection device is characterized by further comprising a metal protection cover, wherein the T-shaped head is covered and covered by the metal protection cover, a wire harness hole for the high-voltage cable to pass through is formed in the metal protection cover, and fireproof mud is blocked at a gap between the high-voltage cable and the wire harness hole; the high-voltage cable terminal uses the T-shaped head material, and compared with a common thermal shrinkage cable terminal or cold shrinkage cable terminal material, the high-voltage cable terminal has higher safety and longer service life. The high-voltage cable head is connected above the centrally-mounted switch cabinet, and compared with the connection below the switch cabinet, the safety is higher, and the construction is simpler and more convenient.
Description
Technical Field
The utility model relates to a power equipment technical field, concretely relates to put overhead inlet wire system of cubical switchboard high tension cable in.
Background
In a power system of a 22KV indoor substation commonly used in 10KV, 20KV and southeast Asia, a centrally installed switchgear is a commonly used device, a high-voltage cable is led to an indoor substation from an outdoor pole, is usually led to a cable trench of the indoor substation through an underground buried pipe, is then penetrated through a cable hole from the lower part of the centrally installed switchgear, and is connected to a copper bar below the centrally installed switchgear after being processed by using a thermal shrinkage cable terminal or a cold shrinkage cable terminal material.
The system and the method have great technical defects that firstly, the high-voltage cable is led to the switch cabinet through the underground and the cable trench, the underground and the cable trench usually have large moisture, the moisture is easily brought into the switch cabinet along with the cable, the high-voltage cable with the heavy moisture is easy to have the phenomena of creepage, flashover, breakdown, short circuit and the like, meanwhile, small animals are easy to enter the switch cabinet, so that the high-voltage cable is damaged, the electrical accidents caused by the abnormal cable terminal accounts for 60 percent of all electric power system accidents, great loss is caused to power users, and the electric power safety is influenced. Secondly, the high-voltage cable is buried underground, so that the construction difficulty is increased, the cable quantity is increased, the cable is difficult to replace and maintain, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides an overhead inlet wire system of centrally installed switchgear high tension cable, through the design and the use of a series of structures, the utility model discloses a high tension cable end uses T type head material, than pyrocondensation cable termination or shrinkage cable termination material commonly used, the security is higher, and the life-span is longer. The high-voltage cable head is connected above the centrally-mounted switch cabinet, and compared with the connection below the switch cabinet, the safety is higher, and the construction is simpler and more convenient.
The utility model discloses a following technical scheme realizes:
an upper incoming line system of a high-voltage cable head of a middle-placed switch cabinet comprises a middle-placed switch cabinet body and a high-voltage cable;
the top of the middle switch cabinet body is inserted with a high-voltage bushing;
the end part of the high-voltage cable is provided with a T-shaped head, a pressure joint is sleeved in the T-shaped head, the pressure joint is connected with the high-voltage cable, and the pressure joint and the high-voltage sleeve are tightly connected through a stud;
the top of the T-shaped head is sequentially provided with a blocking head and a protective cover;
the high-voltage cable protection device is characterized by further comprising a metal protection cover, wherein the T-shaped head is covered and covered by the metal protection cover, a wire harness hole for the high-voltage cable to pass through is formed in the metal protection cover, and fireproof mud is plugged in a hole between the high-voltage cable and the wire harness hole;
the top of the centrally installed switchgear body further comprises a bridge, and the high-voltage cable is laid on the bridge.
Preferably, the T-shaped head is made of a fully-shielded insulating material, so that shielding, full insulation, full sealing and electrification touch can be realized, and the safe and reliable operation of a cable network is ensured.
Preferably, a hole is formed in the wall surface of the substation right behind the middle switch cabinet body, the bridge is erected between the top of the middle switch cabinet body and the wall surface of the substation, and the cable is led out to the outside through the hole.
Preferably, the bridge is arranged in an inclined angle, and the bridge positioned at the position of the middle switch cabinet body is 5-10cm higher than the wall surface of the substation.
Preferably, the bridge further comprises an external support bracket for reinforcing the overall structural strength of the bridge.
Preferably, the surface of the bridge frame is plated with a zinc coating, and the thickness of the zinc coating is 10-20 um.
Preferably, the blocking head and the protective cover are sequentially covered above the T-shaped head after being coated with silicone grease.
Preferably, four corners of the bottom of the metal protective cover are fixed to the top of the centrally-mounted switch cabinet through bolts.
Preferably, the end of the high voltage cable is connected to the crimp head by a stress cone.
Compared with the prior art, the utility model, the advantage lies in:
the utility model discloses a high tension cable terminal uses T type head material, than pyrocondensation cable termination commonly used or shrinkage cable termination material, the security is higher, and the life-span is longer. The high-voltage cable head is connected above the middle switch cabinet, and compared with the connection below the switch cabinet, the high-voltage cable head is higher in safety and simpler and more convenient to construct;
and the utility model discloses simple structure, novelty, reasonable in design, convenient to use has stronger practicality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a heating device of the present invention.
In the figure: 1-middle switch cabinet body, 2-high voltage cable, 3-high voltage bushing, 4-T type head, 5-crimping head, 6-stud bolt, 7-plugging head, 8-protective cover, 9-metal protective cover, 10-fireproof mud, 11-bridge frame, 12-substation wall surface and 13-stress cone.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
An upper incoming line system of a high-voltage cable head of a middle-placed switch cabinet comprises a middle-placed switch cabinet body 1 and a high-voltage cable 2;
the top of the middle switch cabinet body 1 is inserted with a high-voltage bushing 3;
the end part of the high-voltage cable 2 is provided with a T-shaped head 4, a pressure joint 5 is sleeved in the T-shaped head 4, the pressure joint 5 is connected with the high-voltage cable 2, and the pressure joint 5 is tightly connected with the high-voltage sleeve 3 through a stud 6;
a blocking head 7 and a protective cover 8 are sequentially arranged at the top of the T-shaped head 4;
the fireproof cable protection device is characterized by further comprising a metal protection cover 9, the T-shaped head 4 is covered and covered by the metal protection cover 9, a wire harness hole for the high-voltage cable 2 to pass through is formed in the metal protection cover 9, and fireproof mud 10 is plugged in a hole between the high-voltage cable 2 and the wire harness hole;
the top of the centrally installed switchgear body 1 further comprises a bridge 11, and the high-voltage cable 2 is laid on the bridge 11.
Specifically, T type head 4 is made for full shield insulation material, can realize shielding, full insulation, totally enclosed, electrified tangible, has guaranteed cable network safe and reliable operation.
Specifically, a hole is formed in a wall surface 12 of the substation right behind the centrally-mounted switchgear body 1, the bridge 11 is erected between the top of the centrally-mounted switchgear body 1 and the wall surface 12 of the substation, and the cable is led out to the outside through the hole.
Specifically, the bridge 11 is arranged in an inclined angle, and the bridge 11 at the position of the middle switch cabinet body 1 is 5-10cm higher than the position of the wall 12 of the substation.
In particular, the support frame also comprises an external support bracket which is used for enhancing the integral structural strength of the bridge frame 11.
Specifically, the surface of the bridge 11 is plated with a zinc coating, and the thickness of the zinc coating is 10-20 um.
Specifically, the blocking head 7 and the protective cover 8 are sequentially covered above the T-shaped head 4 after being coated with silicone grease.
Specifically, four corners of the bottom of the metal protective cover 9 are fixed on the top of the centrally-mounted switch cabinet through bolts.
In particular, the end of the high voltage cable 2 is connected to the crimp connection 5 by means of a stress cone 13.
The working principle is as follows: the utility model discloses when using, 12 trompils of electric substation's wall at the dead astern of putting cubical switchboard body 1 in, erect crane span structure 11 between the top of putting cubical switchboard body 1 in and the wall, suitably install the support supporting additional, ensure simultaneously that galvanized crane span structure 11 cubical switchboard department will be higher than wall department 5-10 cm. Therefore, the water cannot flow back to the upper part of the switch cabinet body. High-voltage bushing 3 is fixed in the top of putting the switch body in to ensure the safe distance of the tip of high tension cable 2 and the shell of putting the switch body in, crimping head 5 of high tension cable 2 passes through stud 6, links together with high-voltage bushing 3, when connecting, ensures that crimping head 5 level aims at stud 6, ensures electrical connection promptly and fixes, will ensure again that crimping head 5 does not receive external force with the cable head. The sealing head 7 and the protective cover 8 are sequentially covered above the T-shaped head 4 after being coated with silicone grease, the metal protective cover 9 is covered above the whole T-shaped head 4, the periphery of the metal protective cover is fixed on the top of the middle switch cabinet body 1 through bolts, and the fireproof mud 10 is sealed at the hole between the high-voltage cable 2 and the wire harness hole, so that the sealing property of the end part of the high-voltage cable 2 is ensured, water vapor and small animals are prevented from entering, and the electric power safety is ensured;
and when using, the high-voltage cable 2 is led out from the outlet end of the outdoor vacuum circuit breaker of the electric pole, passes through the cable pipe, is led to an indoor substation in an overhead mode, a hole is formed in the wall corresponding to the position right above and behind the central switch cabinet body 1, the bridge frame 11 is installed, the high-voltage cable 2 led into the indoor is laid in the bridge frame 11 until the position above the wire inlet cabinet of the central switch cabinet body 1, and the T-shaped cable head process is used above the wire inlet cabinet to connect the high-voltage cable 2 into the central switch cabinet body 1.
And the T-shaped head 4 material is a full-shielding product. The connection of the cable joint can realize shielding, full insulation, full sealing and electrification touch, and the safe and reliable operation of a cable network is ensured. The stress cone 13 is suitable for the wire inlet and outlet terminals of a cross-linked power cable, and the electric field at the outer shielding cut-off part of the cable terminal head is uniform, so that the long-term reliable operation of the cable is ensured, and the cable is particularly suitable for operation in a humid and dirty environment. Compared with the common thermal shrinkage cable terminal or cold shrinkage cable terminal material, the safety is higher, and the service life is longer.
The utility model discloses under the design and the use that adopt above-mentioned structure, the utility model discloses a 2 terminal usage T type head 4 materials of high tension cable, than pyrocondensation cable terminal or shrinkage cable terminal material commonly used, the security is higher, and the life-span is longer. 2 first in put the cubical switchboard top of high tension cable and connect, compare and connect in the cubical switchboard below, the security is higher, and the construction is more simple and convenient.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The utility model provides an in put first inlet wire system of cubical switchboard high tension cable, includes and puts cubical switchboard body (1) and high tension cable (2), its characterized in that:
the top of the middle switch cabinet body (1) is inserted with a high-voltage bushing (3);
the end part of the high-voltage cable (2) is provided with a T-shaped head (4), a pressure joint (5) is sleeved in the T-shaped head (4), the pressure joint (5) is connected with the high-voltage cable (2), and the pressure joint (5) is tightly connected with the high-voltage sleeve (3) through a stud bolt (6);
a blocking head (7) and a protective cover (8) are sequentially arranged at the top of the T-shaped head (4);
the fireproof cable is characterized by further comprising a metal protective cover (9), the T-shaped head (4) is covered and covered by the metal protective cover (9), a wiring harness hole for the high-voltage cable (2) to penetrate through is formed in the metal protective cover (9), and fireproof mud (10) is plugged in a hole between the high-voltage cable (2) and the wiring harness hole;
the top of the centrally installed switchgear body (1) further comprises a bridge (11), and the high-voltage cable (2) is laid on the bridge (11).
2. The overhead incoming line system for the high-voltage cable of the centrally installed switchgear, according to claim 1, is characterized in that: the T-shaped head (4) is made of a fully-shielding insulating material.
3. The overhead incoming line system for the high-voltage cable of the centrally installed switchgear, according to claim 1, is characterized in that: a hole is formed in a wall surface (12) of a substation right behind the middle-placed switch cabinet body (1), the bridge (11) is erected between the top of the middle-placed switch cabinet body (1) and the wall surface (12) of the substation, and the cable is led out to the outside through the hole.
4. The overhead incoming line system for the high-voltage cable of the centrally installed switchgear, according to claim 3, is characterized in that: the bridge (11) is arranged in an inclined angle mode, and the bridge (11) located at the position of the middle-placed switch cabinet body (1) is 5-10cm higher than the position of the wall surface (12) of the substation.
5. The overhead incoming line system for the high-voltage cable of the centrally installed switchgear, according to claim 3, is characterized in that: the bridge frame also comprises an external supporting bracket used for reinforcing the integral structural strength of the bridge frame (11).
6. The overhead incoming line system for the high-voltage cable of the centrally installed switchgear, according to claim 3, is characterized in that: the surface of the bridge (11) is plated with a zinc coating, and the thickness of the zinc coating is 10-20 um.
7. The overhead incoming line system for the high-voltage cable of the centrally installed switchgear, according to claim 1, is characterized in that: the blocking head (7) and the protective cover (8) are sequentially covered above the T-shaped head (4) after being coated with silicone grease.
8. The overhead incoming line system for the high-voltage cable of the centrally installed switchgear, according to claim 1, is characterized in that: four corners of the bottom of the metal protective cover (9) are fixed on the top of the middle switch cabinet through bolts.
9. The overhead incoming line system for the high-voltage cable of the centrally installed switchgear, according to claim 1, is characterized in that: the end of the high-voltage cable (2) is connected with the crimping head (5) through a stress cone (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022757547.XU CN213905911U (en) | 2020-11-25 | 2020-11-25 | Overhead incoming line system for high-voltage cable of centrally installed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022757547.XU CN213905911U (en) | 2020-11-25 | 2020-11-25 | Overhead incoming line system for high-voltage cable of centrally installed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213905911U true CN213905911U (en) | 2021-08-06 |
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ID=77122061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022757547.XU Active CN213905911U (en) | 2020-11-25 | 2020-11-25 | Overhead incoming line system for high-voltage cable of centrally installed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213905911U (en) |
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2020
- 2020-11-25 CN CN202022757547.XU patent/CN213905911U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.13, area a, Furong Industrial Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee after: Weston Power Technology (Wuxi) Co.,Ltd. Address before: No.13, area a, Furong Industrial Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee before: WISTON AUTOMATIC EQUIPMENT WUXI Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |