CN111224368A - Miniature cable trench - Google Patents
Miniature cable trench Download PDFInfo
- Publication number
- CN111224368A CN111224368A CN201911216318.2A CN201911216318A CN111224368A CN 111224368 A CN111224368 A CN 111224368A CN 201911216318 A CN201911216318 A CN 201911216318A CN 111224368 A CN111224368 A CN 111224368A
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- CN
- China
- Prior art keywords
- cable
- base body
- trench
- cover plate
- length direction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to the technical field of cable laying equipment in a power system transformer substation, in particular to a miniature cable trench which comprises a base body and a cover plate, wherein the base body and the cover plate are both made of resin composite materials, the length direction of the base body is arranged along the front-back direction, the cross section of the base body is in a right-angled trapezoid shape with a small upper part and a large lower part, the right-side waist edge of the right-angled trapezoid shape is a right-angled waist edge, a plurality of cable placing trenches are arranged on the top surface of the base body in parallel along the left-right direction at. The invention is used by matching with the existing concave cable trench main body, on the premise of realizing the operation and maintenance requirements of the power cable and the control cable for laying in different trenches, the existing facilities in the transformer substation are utilized as much as possible, the aim of maximizing the change is achieved, the engineering investment cost is reduced as much as possible, time and labor are saved, the popularization is high, in addition, the product can be prefabricated in advance in batches, and the engineering construction time is further shortened.
Description
Technical Field
The invention relates to the technical field of cable laying equipment in a power system transformer substation, in particular to a miniature cable trench.
Background
The cable trench used in the existing transformer substation is basically of a concave-shaped concrete or brick-concrete structure, when the cable trench with the structure is used, a power cable and a control cable are laid in the trench together, once the power cable causes a fire disaster due to a fault, other equipment in the cable trench is damaged, and accordingly, the power grid has large-area power failure and other adverse effects, the loss is serious, especially in recent years, fire accidents caused by the faults of the power cable occur successively in a plurality of provincial power system transformer substations in China, a plurality of requirements on operation and maintenance of the power cable of the transformer substation are issued successively by the national power grid company, the power cable and the control cable laid in the same trench are laid separately, wherein the most critical link is to require the power cable and the control cable to be laid separately, and the equipment accident caused by the fire disaster of the power cable fault is avoided, effectively avoids the large-area power failure risk of the power grid. However, because the cable trench channels of the in-network internal operation transformer substation are limited and no redundant standby cable trench is provided, the method for realizing the trench-divided laying of the power cable and the control cable at present is to newly build a new cable trench with the same structure as the original cable trench to place the power cable, and the newly built cable trench is high in construction cost, large in occupied space and time-consuming and labor-consuming. And a new cable trench is paved, so that the construction cost of separately paving the power cable and the control cable is high, and the laying operation is time-consuming and labor-consuming.
Disclosure of Invention
The invention provides a miniature cable trench, overcomes the defects of the prior art, and can effectively solve the problems that the potential safety hazard of the existing control cable and power cable laid in the same trench is high in construction cost, large in occupied space and time-consuming and labor-consuming in construction, and the problems need to be laid in different trenches.
The technical scheme of the invention is realized by the following measures: a miniature cable trench comprises a base body and a cover plate, wherein the base body and the cover plate are both made of resin composite materials, the length direction of the base body is arranged along the front-back direction, the cross section of the base body is in a right trapezoid shape with a small upper part and a large lower part, the right waist edge of the right trapezoid shape is a right waist edge, a plurality of cable placing trenches are arranged on the top surface of the base body along the left-right direction at intervals in parallel, each cable placing trench extends along the length direction of the base body, a plurality of cable outlet grooves are arranged on the right side surface of the base body along the length direction at intervals, and each cable outlet groove is communicated; the cover plate covers the base body and is positioned right above the plurality of cable placing grooves, and the lower surface of the cover plate is contacted with the top surface of the base body; the base member top surface left and right sides is equipped with spacing sand grip respectively, corresponds all to be equipped with the recess on the apron lower surface of every spacing sand grip position, and spacing sand grip is pegged graft in the recess that corresponds.
The following is further optimization or/and improvement of the technical scheme of the invention:
the aforesaid correspond can be equipped with water drainage tank on the base member of a plurality of cable placing groove below positions, water drainage tank extends along base member length direction, and the right flank of base member is provided with the delivery port of a plurality of and water drainage tank intercommunication along the length direction interval, and every cable placing groove diapire is provided with a plurality of wash port along the cable placing groove length direction equal interval, and the bottom of every wash port all communicates with water drainage tank.
The bottom surface of the drainage groove can be inclined from top to bottom from one side far away from the water outlet to one side close to the water outlet, and the bottom surface of the water outlet and the bottom surface of the right side of the drainage groove are positioned at the same height.
The height of the substrate can be 20cm-25cm, the cross section of the cover plate is rectangular, the thickness of the cover plate is 2cm-2.5cm, and the diameter of the drain hole is 1cm-2 cm.
The lower end of the oblique waist side of the right trapezoid of the cross section of the base body can be in an arc shape, and two vertex angles of the rectangle of the cross section of the cover plate are in arc shapes.
The cross section of each cable placing groove can be U-shaped.
The invention is used by matching with the existing concave cable trench main body, on the premise of realizing the operation and maintenance requirements of the power cable and the control cable for laying in different trenches, the existing facilities in the transformer substation are utilized as much as possible, the aim of maximizing the change is achieved, the engineering investment cost is reduced as much as possible, time and labor are saved, the popularization is high, in addition, the product can be prefabricated in advance in batches, and the engineering construction time is further shortened.
Drawings
Fig. 1 is a schematic front view of the preferred embodiment of the present invention.
Fig. 2 is a schematic top view of the substrate of fig. 1.
Fig. 3 is a right-side structural schematic view of the substrate in fig. 1.
Fig. 4 is a sectional view taken along line a-a in fig. 2.
Fig. 5 is a sectional view taken along line B-B in fig. 2.
The codes in the figures are respectively: 1 is the base member, 2 is the apron, and 3 are the cable and place the ditch, and 4 are cable outlet groove, and 5 are water drainage tank, 6 are the delivery port, and 7 are the wash port, and 8 are spacing sand grip, and 9 are the recess.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described with reference to the following examples and figures:
as shown in the attached figures 1-5, the miniature cable duct comprises a base body 1 and a cover plate 2 which are both made of resin composite materials, wherein the length direction of the base body 1 is arranged along the front-back direction, the cross section of the base body 1 is in a right-angled trapezoid shape with a small upper part and a large lower part, the right waist edge of the right-angled trapezoid shape is a right-angled waist edge, a plurality of cable placing ducts 3 are arranged on the top surface of the base body 1 along the left-right direction at intervals in parallel, each cable placing duct 3 extends along the length direction of the base body 1, a plurality of cable outlet grooves 4 are arranged on the right side surface of the base body 1 along the length direction at intervals, and each cable outlet groove; the cover plate 2 covers the base body 1 and is positioned right above the plurality of cable placing grooves 3, and the lower surface of the cover plate 2 is contacted with the top surface of the base body 1; the 1 top surface left and right sides of base member is equipped with spacing sand grip 8 respectively, corresponds and all is equipped with recess 9 on the 2 lower surfaces of apron of every spacing sand grip 8 positions, and spacing sand grip 8 is pegged graft in corresponding recess 9. The base body 1 and the cover plate 2 are both made of resin composite materials, so that the cable trench has the advantages of light weight, high strength, durability, good insulating property and good fireproof and flame-retardant properties, the cover plate 2 is ensured not to deviate when being covered on the base body 1 through the arrangement of the limiting convex strips 8 and the grooves 9, when the cable trench is used, a trench is dug on the ground beside an original concave cable trench main body of a transformer substation, then the base body 1 is placed in the trench, the right side surface of the base body 1 is tightly attached to the outer surface of the side wall of one side of the concave cable trench main body, an opening communicating the inside of the concave cable trench main body with the cable outlet groove 4 is arranged on the side wall of the concave cable trench main body corresponding to the position of the cable outlet groove 4 closest to a terminal box in the concave cable trench main body, then power cables in the concave cable trench main body are moved out and placed in the cable placing grooves 3, and at most one, two ends of the power cable return to the concave cable trench main body through the cable outlet groove 4 and the opening on the side wall of the concave cable trench main body and are connected with the corresponding terminal box to supply power to each device, and finally the cover plate 2 is covered and the groove is refilled. The power cable and control cable trench laying device is matched with the existing concave cable trench main body for use, power cables and control cables are laid separately, secondary equipment accidents caused by power cable fault fire are avoided, the large-area power failure risk of a power grid is effectively avoided, each power cable is independently placed in one cable placing trench 3, mutual isolation among the power cables is guaranteed, the expansion of the fault fire accident range of the power cables is further avoided, only the power cables need to be placed in the base body 1, the size of the base body 1 is much smaller than that of the original cable trench, the base body 1 is tightly attached to the outer side wall of the original concave cable trench, the occupied space is further reduced, the cross section of the base body 1 is in a right trapezoid shape with the smaller top and the larger bottom, and the base body 1 can be tightly and stably attached to the concave cable trench main body after soil is backfilled. The invention uses the concave cable trench main body in the transformer substation in cooperation with the original concave cable trench main body in the transformer substation, on the premise of realizing the operation and maintenance requirements of the power cable and the control cable for trench-separated laying, the existing facilities in the transformer substation are utilized as much as possible, the minimized change is realized to achieve the aim of maximizing, the engineering investment cost is reduced as much as possible, the time and the labor are saved, the popularization is high, in addition, the product can be prefabricated in batches in advance, and the engineering construction time is further shortened.
The micro cable channel can be further optimized or/and improved according to actual needs:
as shown in the attached drawings 1-5, a drainage channel 5 is arranged on the base body 1 corresponding to the position below the cable placing grooves 3, the drainage channel 5 extends along the length direction of the base body 1, a plurality of water outlets 6 communicated with the drainage channel 5 are arranged on the right side surface of the base body 1 along the length direction at intervals, a plurality of drain holes 7 are arranged on the bottom wall of each cable placing groove 3 along the length direction of the cable placing groove 3 at intervals, and the bottom end of each drain hole 7 is communicated with the drainage channel 5. When the drainage channel is used, the side wall of the concave cable trench main body corresponding to the position of each water outlet 6 is provided with an opening for communicating the interior of the concave cable trench main body with the water outlet 6, so that water in the cable placing trench 3 can be drained into the drainage channel of the concave cable trench main body, and the environment in the cable placing trench 3 is kept dry.
As shown in fig. 1, 4 and 5, the bottom surface of the water discharge groove 5 is inclined from the side far away from the water outlet 6 to the side close to the water outlet 6 from top to bottom, and the bottom surface of the water outlet 6 and the bottom surface of the right side of the water discharge groove 5 are at the same height. Thereby facilitating the outflow of water in the drain tank 5.
As shown in the attached figures 1-5, the height of the basal body 1 is 20cm-25cm, the cross section of the cover plate 2 is rectangular, the thickness of the cover plate 2 is 2cm-2.5cm, and the diameter of the drainage hole 7 is 1cm-2 cm. Therefore, the material consumption is less, and the manufacturing cost is reduced.
As shown in fig. 1, the lower end of the oblique waist side of the right trapezoid of the cross section of the base 1 is arc-shaped, and the two vertex angles of the rectangle of the cross section of the cover plate 2 are arc-shaped. Not only improves the external force collision bearing capacity, is convenient for smooth demoulding in unified manufacturing, but also is delicate and beautiful.
As shown in fig. 1, 4 and 5, each cable-laying channel 3 is U-shaped in cross section. The bottom surface of the cable placing groove 3 is a cambered surface, so that rainwater in the cable placing groove 3 can be discharged conveniently, the abrasion of cable sheath in the cable laying process can be reduced to the maximum extent, and meanwhile, the power cable is static at the bottom of the cable placing groove 3 under the action of gravity.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (7)
1. A miniature cable trench is characterized by comprising a base body and a cover plate, wherein the base body and the cover plate are both made of resin composite materials, the length direction of the base body is arranged along the front-back direction, the cross section of the base body is in a right trapezoid shape with a small upper part and a large lower part, the right waist edge of the right trapezoid shape is a right waist edge, a plurality of cable placing trenches are arranged on the top surface of the base body along the left-right direction at intervals in parallel, each cable placing trench extends along the length direction of the base body, a plurality of cable outlet grooves are arranged on the right side surface of the base body along the length direction at intervals, and each cable outlet groove is communicated; the cover plate covers the base body and is positioned right above the plurality of cable placing grooves, and the lower surface of the cover plate is contacted with the top surface of the base body; the base member top surface left and right sides is equipped with spacing sand grip respectively, corresponds all to be equipped with the recess on the apron lower surface of every spacing sand grip position, and spacing sand grip is pegged graft in the recess that corresponds.
2. The miniature cable trench according to claim 1, wherein a drainage channel is formed on the base body at a position below the plurality of cable placement trenches, the drainage channel extends along the length direction of the base body, a plurality of water outlets communicated with the drainage channel are formed on the right side surface of the base body at intervals along the length direction, a plurality of drainage holes are formed in the bottom wall of each cable placement trench at intervals along the length direction of the cable placement trench, and the bottom end of each drainage hole is communicated with the drainage channel.
3. The miniature cable trench of claim 2, wherein the bottom surface of the drainage trench is inclined from the side away from the water outlet to the side close to the water outlet from top to bottom, and the bottom surface of the water outlet and the bottom surface of the right side of the drainage trench are at the same height.
4. The micro cable trench according to claim 2 or 3, wherein the height of the base body is 20cm to 25cm, the cross section of the cover plate is rectangular, the thickness of the cover plate is 2cm to 2.5cm, and the diameter of the drain hole is 1cm to 2 cm.
5. The micro cable trench according to claim 4, wherein the lower end of the diagonal side of the rectangular trapezoid of the cross section of the base body is arc-shaped, and the two vertex angles of the rectangle of the cross section of the cover plate are arc-shaped.
6. The microcannula of claim 1, 2, 3 or 5, wherein each cable-placement groove is U-shaped in cross-section.
7. The microcannula of claim 4, wherein each cable-placement groove is U-shaped in cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216318.2A CN111224368A (en) | 2019-12-02 | 2019-12-02 | Miniature cable trench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216318.2A CN111224368A (en) | 2019-12-02 | 2019-12-02 | Miniature cable trench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111224368A true CN111224368A (en) | 2020-06-02 |
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ID=70830774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911216318.2A Pending CN111224368A (en) | 2019-12-02 | 2019-12-02 | Miniature cable trench |
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| Country | Link |
|---|---|
| CN (1) | CN111224368A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478772U (en) * | 2009-07-06 | 2010-05-19 | 北京华通博奥科贸有限责任公司 | Cable groove of roadbed of railway |
| CN202145557U (en) * | 2011-06-24 | 2012-02-15 | 上虞帝瑞云涛化工有限公司 | Cable trench having lower drainage channel |
| CN204633248U (en) * | 2015-05-13 | 2015-09-09 | 重庆长安汽车股份有限公司 | A kind of automotive wire bundle line protecting box |
| CN204886050U (en) * | 2015-08-18 | 2015-12-16 | 映智电气启东有限公司 | Cabinet -type distribution groove |
| CN205301641U (en) * | 2015-11-11 | 2016-06-08 | 广东电网有限责任公司韶关供电局 | Transformer substation's cable pit optical cable seal groove |
| EP3073593A1 (en) * | 2015-03-24 | 2016-09-28 | Mazzilli, Barbara | Process for anchoring cables in a conduit and so-produced cable-holding conduit |
| CN106253190A (en) * | 2016-09-12 | 2016-12-21 | 广州电力设计院 | Cable duct structure, cabling arrangements and cable laying method |
| CN106558861A (en) * | 2016-11-04 | 2017-04-05 | 安徽华电工程咨询设计有限公司 | A kind of multi-functional cable ditch |
| CN107171189A (en) * | 2017-05-25 | 2017-09-15 | 国网山东省电力公司青岛供电公司 | A kind of cable tunnel integrated with substation equipment basis |
| CN109599808A (en) * | 2018-12-18 | 2019-04-09 | 天长市福骏金属制品有限公司 | A kind of high strengthening tendons light trough type cable testing bridge of coloured silk steel |
| CN209626918U (en) * | 2019-04-29 | 2019-11-12 | 中国电建集团贵阳勘测设计研究院有限公司 | Novel cable pit and escape canal integrated configuration |
-
2019
- 2019-12-02 CN CN201911216318.2A patent/CN111224368A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478772U (en) * | 2009-07-06 | 2010-05-19 | 北京华通博奥科贸有限责任公司 | Cable groove of roadbed of railway |
| CN202145557U (en) * | 2011-06-24 | 2012-02-15 | 上虞帝瑞云涛化工有限公司 | Cable trench having lower drainage channel |
| EP3073593A1 (en) * | 2015-03-24 | 2016-09-28 | Mazzilli, Barbara | Process for anchoring cables in a conduit and so-produced cable-holding conduit |
| CN204633248U (en) * | 2015-05-13 | 2015-09-09 | 重庆长安汽车股份有限公司 | A kind of automotive wire bundle line protecting box |
| CN204886050U (en) * | 2015-08-18 | 2015-12-16 | 映智电气启东有限公司 | Cabinet -type distribution groove |
| CN205301641U (en) * | 2015-11-11 | 2016-06-08 | 广东电网有限责任公司韶关供电局 | Transformer substation's cable pit optical cable seal groove |
| CN106253190A (en) * | 2016-09-12 | 2016-12-21 | 广州电力设计院 | Cable duct structure, cabling arrangements and cable laying method |
| CN106558861A (en) * | 2016-11-04 | 2017-04-05 | 安徽华电工程咨询设计有限公司 | A kind of multi-functional cable ditch |
| CN107171189A (en) * | 2017-05-25 | 2017-09-15 | 国网山东省电力公司青岛供电公司 | A kind of cable tunnel integrated with substation equipment basis |
| CN109599808A (en) * | 2018-12-18 | 2019-04-09 | 天长市福骏金属制品有限公司 | A kind of high strengthening tendons light trough type cable testing bridge of coloured silk steel |
| CN209626918U (en) * | 2019-04-29 | 2019-11-12 | 中国电建集团贵阳勘测设计研究院有限公司 | Novel cable pit and escape canal integrated configuration |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200602 |