CN215580210U - Cable termination field - Google Patents
Cable termination field Download PDFInfo
- Publication number
- CN215580210U CN215580210U CN202121910847.5U CN202121910847U CN215580210U CN 215580210 U CN215580210 U CN 215580210U CN 202121910847 U CN202121910847 U CN 202121910847U CN 215580210 U CN215580210 U CN 215580210U
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- Prior art keywords
- cable
- phase
- terminal
- line
- steel
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- 229910000831 Steel Inorganic materials 0.000 claims description 53
- 239000010959 steel Substances 0.000 claims description 53
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000001052 transient effect Effects 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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Abstract
The utility model discloses a cable terminal field which comprises a shell formed by pouring reinforcing steel bars and concrete, wherein a cavity chamber is arranged in the shell, a plurality of cable holes communicated with the cavity chamber are formed in the top of the shell, cable terminals are arranged at the upper ends of the cable holes, a lightning arrester corresponding to the cable terminals is arranged at the top of the shell, and a lead-in wire is arranged on the lightning arrester and is fixedly connected with a three-phase overhead line. The cable terminal and the lightning arrester are fixedly arranged at the top of the shell and are integrated with the shell, so that the problem of uneven settlement easily caused by independent installation of the cable terminal and the lightning arrester is solved; meanwhile, the cable terminal and the lightning arrester are mounted on the ground, so that construction and daily operation and maintenance are facilitated; the lightning arrester is used to protect the cable termination against high transient overvoltages generated by lightning.
Description
Technical Field
The utility model relates to the field of cable terminal laying, in particular to a cable terminal field.
Background
With the development of economy and the progress of society, urban construction land is short, and high-voltage transmission lines are basically laid in urban areas or development areas in a cable mode. But overhead transmission lines still occupy a larger proportion. In the urban and rural junction, more overhead lines are combined with cable lines. The unit investment of the cable is higher than that of an overhead line, and fault points of the cable are located at the middle joint and the terminal of the cable. The reasonable reservation of the cable is beneficial to avoiding increasing the joints or replacing the cable caused by insufficient length of the cable section after the cable head fails in the later period; meanwhile, the integral connection of the cable terminal is reliable and stable, and the fundamental guarantee for reducing faults is also facilitated.
In the cable design at the present stage, the cable reservation and the overall stability of the cable termination field (station) are not considered. Often, after the cable head breaks down, a new section of cable needs to be bought again for replacement, so that not only is the cost increased, but also the power failure time is increased by more than 3-5 days.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the prior art, the present invention provides a cable termination field with a cable reserved therein.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:
the utility model provides a cable termination field, it includes the casing that reinforcing bar and concrete placement formed, is provided with the plenum chamber in the casing, and the top of casing is provided with a plurality of cable holes with the plenum chamber intercommunication, and the upper end in a plurality of cable holes all is provided with cable terminal, and the top of casing is provided with the arrester that corresponds with cable terminal, is provided with the service wire on the arrester, service wire and three-phase overhead line fixed connection.
Furthermore, the side of the shell is provided with a cable leading-in port communicated with the cavity, a three-phase line cable is arranged in the shell and penetrates into the cavity from the cable leading-in port, an A-phase line cable, a B-phase line cable and a C-phase line cable penetrate out of the three cable holes respectively and are fixedly connected to three cable terminal heads respectively, and the three-phase line cable is correspondingly connected with a three-phase overhead line through the cable terminal heads.
Further, the three-phase line cable is of an annular structure which is arranged in the cavity chamber in a surrounding mode along the side wall of the cavity chamber for a plurality of circles.
Further, the cable terminal passes through terminal bracket and the top fixed connection of casing, and the arrester passes through the steel pipe stand and the top fixed connection of casing.
Further, the inside of casing is provided with pre-buried mounting, and terminal support and steel pipe stand all with pre-buried mounting fixed connection.
Further, the terminal bracket comprises a plurality of steel pipe stand columns, the steel pipe stand columns are fixedly connected through angle steel connecting plates, connecting steel plates are arranged at the tops of the steel pipe stand columns, cable avoiding holes are formed in the connecting steel plates and the angle steel connecting plates, and openings are formed in the side faces of the cable avoiding holes.
Further, the top of casing is provided with the access hole.
The utility model has the beneficial effects that:
1. the cable terminal and the lightning arrester are fixedly arranged at the top of the shell and are integrated with the shell, so that the problem of uneven settlement easily caused by independent installation of the cable terminal and the lightning arrester is solved; meanwhile, the cable terminal and the lightning arrester are mounted on the ground, so that construction and daily operation and maintenance are facilitated; the lightning arrester is used to protect the cable termination against high transient overvoltages generated by lightning.
2. The connection between the three-phase line cable and the cable terminal and the connection between the cable terminal and the three-phase overhead line are stable and reliable, and the stresses applied to the three-phase line cable and the three-phase overhead line are the same and are kept unchanged, so that the fault rate of the cable terminal is reduced.
3. Three-phase line cable encircles along the lateral wall of cavity and lays one to two circles as the surplus cable of three-phase line cable, and guarantee later stage terminal fault can not increase the power off time because of there being no surplus cable to and reduce economic loss.
4. Through terminal bracket and steel pipe stand, with the equal insulating spaced setting of cable terminal and arrester at the top of casing, strengthen its operational fail safe nature.
5. The setting of pre-buried mounting makes the more firm setting at the top of casing of terminal support and steel pipe stand.
6. Terminal support simple structure, the steel pipe stand supports stably, and the angle connection board is connected firmly, and the cable dodges the hole and makes things convenient for the cable to wear to establish to cable terminal department from cable hole department, and open-sided setting makes things convenient for putting into and taking out of cable simultaneously.
7. The access hole is convenient for the maintainer to enter the cavity chamber for maintenance.
Drawings
Fig. 1 is a perspective view of a cable termination field.
Fig. 2 is a front view of the terminal holder.
Fig. 3 is a top view of the terminal support.
Fig. 4 is a top view of a three-phase line cabling.
Fig. 5 is a side view of a three-phase line cabling.
The cable comprises a shell, a cavity, a cable lead-in port, a cable hole, a three-phase line cable, a three-phase overhead line, a cable terminal, a lightning arrester, a terminal bracket, a steel column, a pre-buried fixing piece, a steel tube, a maintenance hole, a mounting hole, a connecting steel plate, a steel angle connecting plate, a steel tube column, a cable avoiding hole, a cable hole, an opening, a cable conductor, a steel column, a steel angle connecting plate, a steel tube column, a steel tube cable avoiding hole, a steel tube cable, an opening, a steel tube conductor, a C wire conductor cable, a phase overhead cable, a phase conductor and a conductor.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the utility model as defined and defined in the appended claims, and all changes that come within the meaning and range of equivalency of the claims are to be embraced therein.
As shown in fig. 1, the cable termination field of this scheme includes casing 1 that reinforcing bar and concrete placement formed, casing 1 is the cubic structure, be provided with cavity 2 in the casing 1, the side of casing 1 is provided with the cable inlet 3 with cavity 2 intercommunication, the top of casing 1 is provided with three cable hole 4 with cavity 2 intercommunication, the upper end of three cable hole 4 all is provided with cable terminal 7, and three cable terminal 7 all is through the top fixed connection of terminal bracket 9 with casing 1, the top of casing 1 is provided with the arrester 8 that corresponds with cable terminal 7, and arrester 8 passes through the top fixed connection of steel column 10 with casing 1. The cable terminal 7 and the lightning arrester 8 are fixedly arranged at the top of the shell 1 and are combined with the shell 1 into a whole, so that the problem of uneven settlement easily caused by independent installation of the cable terminal and the lightning arrester 8 is solved; meanwhile, the cable terminal 7 and the lightning arrester 8 are mounted on the ground, so that construction and daily operation and maintenance are facilitated.
As shown in fig. 1, the top of the housing 1 is provided with a pre-buried fixing member 11, the pre-buried fixing member 11 is laid on the top of the housing 1 in a net shape, and the lower ends of the terminal bracket 9 and the steel pipe upright post 16 are welded and fixed with the pre-buried fixing member 11, so that the terminal bracket 9 and the steel pipe upright post 16 are more stably arranged on the top of the housing 1.
As shown in fig. 2 and 3, the terminal support 9 includes a connecting steel plate 14, three steel pipe columns 16 and four angle steel connecting plates 15, the connecting steel plate 14 is in an equilateral triangle structure, the three steel pipe columns 16 are respectively vertically arranged at three corners of the connecting steel plate 14, the three steel pipe columns 16 are fixedly connected through the four angle steel connecting plates 15, the angle steel connecting plates 15 are fixedly welded with the steel pipe columns 16, the connecting steel plate 14 is arranged at the tops of the three steel pipe columns 16, the terminal support 9 is simple in structure, the three steel pipe columns 16 are arranged in a triangle shape, the supporting stability of the terminal support is enhanced, and the angle steel connecting plates 15 enable the three steel pipe columns 16 to be stably connected; the connecting steel plate 14 and the angle steel connecting plate 15 are both provided with cable avoiding holes 17, the side surfaces of the cable avoiding holes 17 are provided with openings 18, the cable avoiding holes 17 facilitate the cables to penetrate from the cable holes 4 to the cable terminals 7, and meanwhile, the side openings 18 facilitate the cables to be put in and taken out; four mounting holes 13 are symmetrically arranged on the connecting steel plate 14, and the mounting holes 13 are used for connecting and fixing the cable terminal 7.
As shown in fig. 1, the cable terminal 7 and the lightning arrester 8 are respectively arranged in a straight line, and particularly, the layout of the cable terminal 7 and the lightning arrester 8 can be changed according to the actual situation of the field on the premise of satisfying the electrical clearance, for example, the cable terminal 7 and the lightning arrester 8 can be respectively arranged in multiple ways such as a "straight line", "delta" and "ring".
As shown in fig. 1, the top of the housing 1 is provided with a manhole 12. The access hole 12 is convenient for the maintainer to enter the cavity chamber 2 for maintenance.
In the specific implementation of the cable terminal field, as shown in fig. 1, 4 and 5, the three-phase line cables 5 led in from the main tunnel or cable duct penetrate into the hollow chamber 2 of the housing 1 from the cable lead-in 3, the three-phase line cables 5 surround one to two circles along the side wall of the hollow chamber 2, then the phase a line cables 501, the phase B line cables 502 and the phase C line cables 503 of the three-phase line cables 5 respectively pass through the three cable holes 4 and are fixedly connected to the corresponding cable terminals 7, the phase a line cables 501, the phase B line cables 502 and the phase C line cables 503 of the three-phase line cables 5 are correspondingly connected to the phase a cables 601, the phase B overhead cables 602 and the phase C overhead cables 603 of the three-phase overhead lines 6 through the cable terminals 7, the three lightning arresters 8 are provided with lead-in 801, and the lead-in 801 is fixedly connected to the corresponding three-phase overhead lines 6, the lightning arrester is used to protect the cable termination against high transient overvoltages generated by lightning.
The connection between the three-phase line cable 5 and the cable terminal 7 and the connection between the cable terminal 7 and the three-phase overhead line 6 are stable and reliable, and the stresses applied to the three-phase line cable and the three-phase overhead line are the same and are kept unchanged, so that the fault rate of the cable terminal is reduced; three-phase line cable 5 encircles along the lateral wall of cavity 2 and lays one to two circles as three-phase line cable 5's surplus cable, and guarantee later stage terminal fault can not increase the power off time because of there being no surplus cable to and reduce economic loss.
Claims (7)
1. The utility model provides a cable termination field, its characterized in that, includes casing (1) that reinforcing bar and concrete placement formed, be provided with cavity room (2) in casing (1), the top of casing (1) is provided with a plurality of cable holes (4) with cavity room (2) intercommunication, and is a plurality of the upper end of cable hole (4) all is provided with cable terminal (7), the top of casing (1) is provided with arrester (8) that correspond with cable terminal (7), be provided with inlet wire (801) on arrester (8), inlet wire (801) and three-phase overhead line (6) fixed connection.
2. The cable termination field according to claim 1, wherein the side of the housing (1) is provided with a cable lead-in (3) communicating with the hollow chamber (2), the housing (1) is provided with three-phase line cables (5), and the three-phase line cables (5) all penetrate into the hollow chamber (2) from the cable lead-in (3); the phase A line cable (501), the phase B line cable (502) and the phase C line cable (503) of the three-phase line cable (5) respectively penetrate out of the three cable holes (4) and are respectively and fixedly connected to the three cable terminal heads (7); and the three-phase line cable (5) is correspondingly connected with the three-phase overhead line (6) through a cable terminal (7).
3. Cable termination field according to claim 2, characterized in that the three-phase line cable (5) is a ring-shaped structure running several turns around the side wall inside the empty chamber (2).
4. The cable termination field according to claim 1, wherein the cable termination head (7) is fixedly connected to the top of the housing (1) by means of a termination bracket (9) and the lightning arrester (8) is fixedly connected to the top of the housing (1) by means of a steel column (10).
5. The cable termination field according to claim 4, wherein a pre-buried fixing member (11) is arranged at the top of the housing (1), and the termination support (9) and the steel column (10) are both fixedly connected with the pre-buried fixing member (11).
6. The cable termination field according to claim 5, wherein the termination support (9) comprises a plurality of steel tube columns (16), the steel tube columns (16) are fixedly connected through a plurality of angle steel connection plates (15), a connection steel plate (14) is arranged at the top of each steel tube column (16), cable avoidance holes (17) are formed in the connection steel plates (14) and the angle steel connection plates (15), and openings (18) are formed in the side surfaces of the cable avoidance holes (17).
7. Cable termination field according to claim 1, characterized in that the top of the housing (1) is provided with a manhole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121910847.5U CN215580210U (en) | 2021-08-16 | 2021-08-16 | Cable termination field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121910847.5U CN215580210U (en) | 2021-08-16 | 2021-08-16 | Cable termination field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215580210U true CN215580210U (en) | 2022-01-18 |
Family
ID=79835912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121910847.5U Active CN215580210U (en) | 2021-08-16 | 2021-08-16 | Cable termination field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215580210U (en) |
-
2021
- 2021-08-16 CN CN202121910847.5U patent/CN215580210U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231220 Address after: Room 29, Floor 11, Unit 1, Building 1, No. 88, Shujin Road, Hi tech Zone, Chengdu, Sichuan 610000 Patentee after: Sichuan Jianzhuo Prefabricated Building Technology Co.,Ltd. Address before: 610000 No. 10, floor 3, building 1, No. 19, West Section 3, 2nd Ring Road, Jinniu District, Chengdu, Sichuan Patentee before: Sichuan Hongyuan Electric Power Design Consulting Co.,Ltd. |