CN108988215A - High pressure electric cable with large cross-section route can right position height adjustment laying engineering method - Google Patents
High pressure electric cable with large cross-section route can right position height adjustment laying engineering method Download PDFInfo
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- CN108988215A CN108988215A CN201810888941.1A CN201810888941A CN108988215A CN 108988215 A CN108988215 A CN 108988215A CN 201810888941 A CN201810888941 A CN 201810888941A CN 108988215 A CN108988215 A CN 108988215A
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- cable
- telpher
- engineering method
- high pressure
- right position
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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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
Abstract
The present invention relates to a kind of high pressure electric cable with large cross-section route can right position height adjustment lay engineering method, comprising the following steps: (1) arrange cable bearer；(2) scaffold is set up, low friction pulley is arranged on scaffold, and the position of low friction pulley is slightly above cable bearer；(3) it arranges telpher hydraulic elevating platform, and telpher is set up thereon；(4) height for adjusting telpher hydraulic elevating platform, makes it be slightly above the position of cable bearer；(5) cable is laid in advance on low friction pulley；(6) cable is pushed on cable bearer after the completion of cable is laid in advance.The implementation of engineering method through the invention, solve traditional cable installation there is technical issues that a large amount of rehandlings in the process, it avoids when human factor in repetitive process causes cable upper bracket by the hidden danger of quality of gouge, raising efficiency while improves power supply reliability.
Description
Technical field
The invention belongs to cable laying technical field, be related to a kind of high pressure electric cable with large cross-section route can right position height adjustment apply
If engineering method.
Background technique
In recent years, electric line cable application in China city has become significant development trend, and Jiangsu Province has put into operation total
Length is up to more than 100,000 kilometers, the whole nation first, wherein 110,220kV cable run path length becomes city up to 3809 kilometers
One of the main transporting pattern of power supply.Wherein, high pressure electric cable with large cross-section occupies the majority.The requirement of the type cable run power supply reliability
It is high, once failure, repairing time-consuming, at high cost, caused by social influence and economic loss it is huge.
The weight of high pressure electric cable with large cross-section is big, such as 220kV cross-sectional area of conductor 2500mm2Every meter of cable about 38kg, this makes people
Power is unable to complete laying work.After traditional laying method of high pressure electric cable with large cross-section is the laying of lower sheave ground, then pass through lifting
Device is removed to cable bearer paragraph by paragraph, needs a large amount of rehandlings, low efficiency；And since cable weight is big, in repetitive process
Human factor easily causes cable and removes into stent procedures, and cable is by the hidden danger of quality of gouge.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies in the prior art, providing a kind of high pressure electric cable with large cross-section route can be fitted
Position height adjustment lay engineering method, solve the problems, such as a large amount of rehandling low efficiencys, also avoid in repetitive process it is artificial because
Element causes cable upper bracket process by the hidden danger of quality of gouge, while improving power supply reliability.
The present invention specifically uses following technical scheme.
A kind of high pressure electric cable with large cross-section route can right position height adjustment lay engineering method, which is characterized in that it is described can right position it is high
Degree adjust laying engineering method the following steps are included:
(1) it arranges cable bearer: the position of cable bearer when determining different channel cable layings, and arranges cable bearer；
(2) it sets up scaffold: setting up scaffold in laying channel, low friction pulley is arranged on scaffold, this is low to rub
The position for slipping wheel is slightly above corresponding cable bearer；
(3) it arranges telpher hydraulic elevating platform: arranging telpher hydraulic elevating platform in laying channel,
And telpher is arranged on telpher hydraulic elevating platform；
(4) it adjusts the height of telpher hydraulic elevating platform: one end of cable is placed on telpher, adjust
Save the height of telpher hydraulic elevating platform；
(5) prewiring cable: cable is laid in height in advance and is slightly above on the low friction pulley of cable bearer height, is passed through
Telpher 4 is along low friction pulley prewiring cable；
(6) laying is completed: will be on the cable push-in cable bearer after the completion of pre- laying.
The present invention further uses following preferred embodiment:
In step (1), when specifically laying in cable duct, cable bearer top layer to ditch apex distance is from should be not less than
400mm, cable bearer spacing should be determined according to the mode of snake laying, and when vertical snakelike, cable bearer spacing is snakelike arc one
Pitch length；When horizontal snakelike, cable bearer spacing is snakelike half pitch length of arc；Cable bearer lowest level is away from bottom of trench apart from not
Less than 50-100mm；Lay layer 2-3 bracket altogether as needed.
Specifically in vertical shaft when vertical run, cable bearer length is determined according to cable size, radical and turning radius, is applied
If mode can use straight-run and bottom again by cable laying at a free elbow by absorbing cable expansion in a manner of,
Vertical snake laying mode can also be used.Number of holders is arranged 1 every 1.5-3m according to different laying methods.
In step (2), the scaffold is correspondingly arranged with cable bearer, and each scaffold includes column and cross bar, cross
Bar is fixed on column, and one end is connected with corresponding cable bearer.
In step (2), low friction pulley is installed on the scaffold cross bar close to cable bearer one end.
The low friction pulley is at least a cable relative to the difference in height of corresponding cable bearer in vertical direction
The coefficient of rolling friction of the height of diameter, the low friction pulley is not more than 0.2.
The scaffold is installed on the side in channel, and the other side of scaffold is reserved for the space that operator passes through.
In step (3), the telpher hydraulic elevating platform is positioned close to ricker side.
In step (4), adjust telpher hydraulic elevating platform height so that on telpher cable hang down
Straight height is higher than the height of at least one cable size of low friction pulley
In step (5), cable is laid in advance on the low friction pulley of each scaffold installation by telpher, it is complete
At the pre- laying of cable.
The invention has the following advantages: solving the problems, such as a large amount of rehandling low efficiencys by the engineering method, avoiding
Human factor in repetitive process easily causes cable upper bracket by the hidden danger of quality of gouge, improves while raising efficiency
Power supply reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of laying apparatu；
Fig. 2 is the laying flow chart of this engineering method.
Description of symbols: 1- scaffold, 2- low friction pulley, 3- telpher hydraulic elevating platform, 4- conveyer,
5- cable bearer.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Fig. 1, high pressure electric cable with large cross-section route of the present invention can apply involved in right position height adjustment laying engineering method
If equipment includes, the cable bearer 5 that is fixed on cable passage side wall；The scaffold 1 being erected in cable passage, the scaffold
It is installed on the side in channel, the other side is reserved for the space that operator passes through, and low friction pulley 2 is arranged on scaffold 1,
The height of the low friction pulley 2 is slightly above cable bearer 5, and the height apart from ground is 0.3-1.8m；It is arranged in cable laying
The telpher hydraulic elevating platform 3 of channel starting point, telpher 4 are set up on the hydraulic platform 3, and cable one end is put
It is placed on telpher 4.
Specifically, as shown in Fig. 2, high pressure electric cable with large cross-section route of the present invention can right position height adjustment laying engineering method
Specific construction the following steps are included:
Step (1), the position of cable bearer when specifying different channel cablings.In cabling process, contains ditch and erect
Well is the most common laying channel, general as needed that layer 2-3 cable bearer is arranged when cable is contained and laid in ditch.Wherein, electric
Cable bracket top layer should determine to ditch apex distance from that should be not less than 400mm, cable bearer spacing according to the mode of snake laying: vertical
When snakelike, cable bearer spacing is snakelike one pitch length of arc；When horizontal snakelike, cable bearer spacing is snakelike arc half-section distance
Degree；Cable bearer lowest level is not less than 50-100mm away from bottom of trench distance；Lay layer 2-3 bracket altogether as needed.
In vertical shaft when vertical run, specifically in vertical shaft when vertical run, cable bearer length is according to cable size, root
Several and turning radius determines, system of laying can use straight-run and bottom again by cable laying at a free elbow with
The mode of absorbing cable expansion, can also be used vertical snake laying mode.Vertical run number of holders is according to different laying sides
Formula is arranged 1 every 1.5-3m.
Step (2), sets up scaffold 1 in cable passage.Wherein, scaffold 1 is whole installs by channel side, and channel is another
Side passes through for operator's walking.Scaffold 1 includes column and cross bar, and cross bar is fixed with column right-angled intersection, cross bar and electricity
Cable bracket 5 is corresponding, and one end of cross bar is arranged on corresponding cable bearer 5.Low friction pulley 2 is arranged on cross bar, this is low
The position of friction pulley is slightly above cable bearer, and at least relative to the difference in height of corresponding cable bearer 5 in vertical direction
For the height of a cable size.Low friction pulley used by the present embodiment is disclosed in application number 200910034593.2
Low-friction cable laying pulley, coefficient of rolling friction are not more than 0.2, can significantly reduce frictional force, effective protection cable,
Laying external force power can be reduced, the laying external force for bearing cable reduces and reduces impaired probability.
Step (3) arranges telpher hydraulic elevating platform 3 in laying channel, and telpher 4 is placed on
On telpher hydraulic elevating platform 3.Hydraulic elevating platform generally selects fork hydraulic lifting platform, especially double hinged
Fork hydraulic lifting platform can guarantee that the lifting travel of platform reaches twice of hydraulic cylinder travel or more, meet cable and apply
If in the process to the demand of lift.
One end of step (4) cable is placed on telpher 4, adjusts the height of telpher hydraulic elevating platform 3
It spends to the position of slightly above cable bearer 5；And the height of at least above 5 one cable sizes of cable bearer, preferably with low friction
Height of pulley is consistent.
Cable is laid on low friction pulley 2 by step (5) in advance by telpher 4, completes the pre- laying of cable.
Cable is pushed into paragraph by paragraph on cable bearer 5 after the completion of step (6) cable laying.
It is knocked when the present invention is for traditional high pressure electric cable with large cross-section laying method low efficiency and easy initiation cable upper bracket
The technical issues of hurting, be put forward for the first time can right position height adjustment laying engineering method, pass through scaffold combination low friction pulley and electricity
Cable conveyer hydraulic elevating platform takes the laying engineering method of a little higher than cable bearer of height to be laid in advance, thus only need to be pre-
It is high-efficient and eliminate the human factor in repetitive process and easily cause and propped up on cable after the completion of laying on push-in cable bearer
Frame is by the hidden danger of quality of gouge.
The above is the preferred embodiment of the present invention, it should be pointed out that be ordinary skill people for the art
For member, under the premise of not departing from principle of the present invention, several improvement and equivalence replacement can also be made, these improve and replace
It changes and is regarded as protection scope of the present invention.
Claims (12)
1. a kind of high pressure electric cable with large cross-section route can right position height adjustment lay engineering method, which is characterized in that it is described can right position height
Adjust laying engineering method the following steps are included:
(1) it arranges cable bearer: the position of cable bearer (5) when determining different channel cable layings, and arranges cable bearer
(5)；
(2) it sets up scaffold: setting up scaffold (1) in laying channel, arrange low friction pulley (2) on scaffold (1), it should
The position of low friction pulley (2) is slightly above corresponding cable bearer (5)；
(3) it arranges telpher hydraulic elevating platform: arranging cable transfer hydraulic elevating platform (3) in laying channel, and
Telpher (4) is arranged on telpher hydraulic elevating platform (3)；
(4) it adjusts the height of telpher hydraulic elevating platform: one end of cable is placed on telpher (4), adjust
Save the height of telpher hydraulic elevating platform (3)；
(5) prewiring cable: cable is laid in height in advance and is slightly above on the low friction pulley of cable bearer (5) height, is passed through
Telpher (4) is along low friction pulley (2) prewiring cable；
(6) laying is completed: will be in cable push-in cable bearer (5) after the completion of pre- laying.
2. high pressure electric cable with large cross-section route as described in claim 1 can right position height adjustment lay engineering method, it is characterised in that:
In step (1), when specifically laying in cable duct, cable bearer top layer to ditch apex distance is from should be not less than 400mm, electricity
Cable bracket spacing should determine that cable bearer lowest level is not less than 50-100mm away from bottom of trench distance according to the mode of snake laying.
3. high pressure electric cable with large cross-section route as claimed in claim 2 can right position height adjustment lay engineering method, it is described it is snakelike apply
If mode includes: vertical snakelike, cable bearer spacing is snakelike one pitch length of arc；When horizontal snakelike, cable bearer spacing
For snakelike half pitch length of arc.
4. high pressure electric cable with large cross-section route as described in claim 1 can right position height adjustment lay engineering method, it is characterised in that:
In step (1), specifically in vertical shaft when vertical run, cable bearer length is according to cable size, radical and turning half
Diameter determines that number of holders is arranged 1 every 1.5-3m.
5. high pressure electric cable with large cross-section route as described in claim 1 can right position height adjustment lay engineering method, it is characterised in that:
In step (2), the scaffold (1) is correspondingly arranged with cable bearer (5), and each scaffold (1) includes column and cross
Bar, cross bar are fixed on column, and one end is connected with corresponding cable bearer (5).
6. high pressure electric cable with large cross-section route as claimed in claim 5 can right position height adjustment lay engineering method, it is characterised in that:
In step (2), low friction pulley (2) are installed on scaffold (1) cross bar close to cable bearer (5) one end.
7. high pressure electric cable with large cross-section route as described in claim 1 or 6 can right position height adjustment lay engineering method, feature exists
In:
The low friction pulley (2) is at least an electricity relative to the difference in height of corresponding cable bearer (5) in vertical direction
The height of cable diameter.
8. high pressure electric cable with large cross-section route as described in claim 1 or 6 can right position height adjustment lay engineering method, feature exists
In:
The coefficient of rolling friction of the low friction pulley (2) is not more than 0.2.
9. high pressure electric cable with large cross-section route as described in claim 1 can right position height adjustment lay engineering method, it is characterised in that:
The scaffold (1) is installed on the side in channel, and the other side of scaffold (1) is reserved for the space that operator passes through.
10. high pressure electric cable with large cross-section route as described in claim 1 can right position height adjustment lay engineering method, it is characterised in that:
In step (3), the telpher hydraulic elevating platform (3) is positioned close to scaffold (1) column side.
11. high pressure electric cable with large cross-section route as described in claim 1 can right position height adjustment lay engineering method, it is characterised in that:
In step (4), the height of telpher hydraulic elevating platform (3) is adjusted, so that cable on telpher (4)
Vertical height is higher than the height of low friction pulley (2) at least one cable size.
12. high pressure electric cable with large cross-section route as claimed in claim 11 can right position height adjustment lay engineering method, it is characterised in that:
In step (5), cable is laid in advance the low friction pulley installed on each scaffold (1) by telpher (4)
(2) on, the pre- laying of cable is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888941.1A CN108988215B (en) | 2018-08-07 | 2018-08-07 | Laying method capable of adjusting height of high-voltage large-section cable line in proper position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888941.1A CN108988215B (en) | 2018-08-07 | 2018-08-07 | Laying method capable of adjusting height of high-voltage large-section cable line in proper position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108988215A true CN108988215A (en) | 2018-12-11 |
| CN108988215B CN108988215B (en) | 2020-12-15 |
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ID=64556130
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810888941.1A Active CN108988215B (en) | 2018-08-07 | 2018-08-07 | Laying method capable of adjusting height of high-voltage large-section cable line in proper position |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110994465A (en) * | 2019-11-29 | 2020-04-10 | 中国二十二冶集团有限公司 | High-span multi-turn high-voltage cable laying method |
| CN112310890A (en) * | 2020-10-21 | 2021-02-02 | 中色十二冶金建设有限公司 | Comprehensive pipe rack cable traction and displacement laying system and application method |
| CN113659505A (en) * | 2021-09-18 | 2021-11-16 | 上海电力设计院有限公司 | Cable erecting device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994465A (en) * | 2019-11-29 | 2020-04-10 | 中国二十二冶集团有限公司 | High-span multi-turn high-voltage cable laying method |
| CN112310890A (en) * | 2020-10-21 | 2021-02-02 | 中色十二冶金建设有限公司 | Comprehensive pipe rack cable traction and displacement laying system and application method |
| CN113659505A (en) * | 2021-09-18 | 2021-11-16 | 上海电力设计院有限公司 | Cable erecting device and method |
| CN113659505B (en) * | 2021-09-18 | 2022-10-21 | 上海电力设计院有限公司 | Cable erecting device and method |
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| CN108988215B (en) | 2020-12-15 |
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