CN202503234U - Plugging device of cable hole of underground substation - Google Patents
Plugging device of cable hole of underground substation Download PDFInfo
- Publication number
- CN202503234U CN202503234U CN2012201070050U CN201220107005U CN202503234U CN 202503234 U CN202503234 U CN 202503234U CN 2012201070050 U CN2012201070050 U CN 2012201070050U CN 201220107005 U CN201220107005 U CN 201220107005U CN 202503234 U CN202503234 U CN 202503234U
- Authority
- CN
- China
- Prior art keywords
- cable
- plugging
- hole
- cable hole
- plugging device
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a plugging device of a cable hole of an underground substation. The plugging device comprises a water plugging connector inside the cable hole, a cable inside the cable hole and a cement plugging layer at an opening of the cable hole. A sealing expansion component is arranged at the outer side of the water plugging connector. According to the plugging device of the utility model, separate processing on the plugging of the cable hole and the cutting off of an water leakage channel in a cable body changes into co-processing, and single protection becomes multiple protections; the sealed expansion assembly is adopted to seal and fill a gap between the cable and the hole, and a gap between the cable and the cement plugging layer, as a result, the water leakage channel in the cable body of the front and middle portions of the cable hole is completely cut off, and therefore, the plugging of the cable hole and the cutting off of the water leakage channel in the cable body can be realized together through a simple assembly, thereby effectively ensuring safety of a cable terminal and equipment in a switch cabinet, and greatly saving cost of maintenance work.
Description
Technical field
The utility model relates to a kind of plugging device, is specifically related to a kind of waterproof plugging device of underground cavity.
Background technology
Along with city's development, the soil has become scarce resource, and increasing skyscraper is rised sheer from level ground in the city.For making full use of the space, skyscraper generally adopts underground transformer and distribution power station structure.Because the relation of high drop between ground and the underground transformer and distribution power station; The cable passage and the cable body that get into underground transformer and distribution power station leak easily; Outside water gently then causes switch motion, user's dead electricity after getting in cable termination and the switch cubicle, heavy then cause ignition of cable, equipment is damaged.Complicated and the big zone of rainfall at groundwater condition, cable termination defective or the fault that cause because of underground transformer and distribution power station leaks every year are more common.
After adopting the technology of water blockoff joint and professional shutoff, though greatly reduce the probability of underground transformer and distribution power station water inlet, but still drainage can take place.
Through actual investigation, we find: the cable cavern shutoff is not sternly intake, and comes to light easily, and water generally amasss on ground cable termination and the equipment of can not endangering immediately, often as general defect processing; And the cable body water inlet; Come to light not too easily, especially cable is through the top entering cabinet of crane span structure from switch cubicle, and water directly gets into cable termination and switch cubicle; Thereby the safety of direct threats cable termination and switch cubicle will or cause cable termination and switch fault as urgent defective.Through reaching a conclusion after the on-site investigation: the cable body that passing through building gets into underground transformer and distribution power station becomes another the important leak paths behind the relay cable hole, more dangerous passage.As, the twisted polyethylene cable that uses at present adopts multicore turnkey structure more, and loose and lack vertical waterproof measure between the cable core in the oversheath, cable jacket is important leak paths.Crosslinked polyetylene insulated thermal coefficient of expansion leaves the gap that supplies insulation expansion than the big one magnitude of metallic copper between copper shield and cable core, this gap also is a passage that leaks.Because cable jacket is impaired or poorly sealed when joint when laying, and causes the water intrusion cable jacket, water flows to lower along two leak paths in the cable body.
According to above-mentioned on-site investigation and analysis, can find that the subject matter of current underground substation cable cavern method for blocking is, also there are not the whole leak paths of shutoff, particularly ignored processing (Fig. 1) to the cable body leak paths.
The utility model content
The technical problem that the utility model will solve is, current underground substation cable cavern method for blocking is further improved, and a kind of plugging device of underground substation cable cavern of effectively hermetically-sealed cable body intake tunnel is provided.
The technical scheme of the utility model is; The plugging device of a kind of underground substation cable cavern; Comprise cable and the grout off layer at hole, cable aperture through walls two ends in the cable cavern through walls, between the grout off layer at hole, cable aperture through walls two ends, the foaming sealant is set.
Wherein, a wall pipe is set in the said cable cavern through walls, said cable is arranged in the wall pipe, and said foaming sealant is arranged in the slit of cable and wall pipe.
Further, said foaming sealant is the thermal expansion elastic sealing compound.
Beneficial effect:
Two deficiencies to original water blockoff joint shutoff hole method: have only a heavily protection; Before keeping hole, in oversheath and these characteristics of copper shield leak paths; The utility model cuts off leak paths in cable cavern shutoff and the cable body by separate processes and becomes together processing, and change one heavily protection is multiple protective; Adopt the sealed expansion assembly to seal filled cable and empty gap; And with the gap of grout off layer; Leak paths before cutting off cable cavern fully, in the middle cable body; The interior leak paths of holes blocking and cable body is realized through a simple assembly together, effectively protected the safety of equipment in cable termination and the switch cubicle, saved the cost of maintenance work greatly.
Description of drawings
Fig. 1 is a cable cavern shutoff hole method sketch map through walls in the prior art.
Fig. 2 is a plugging device shutoff hole method sketch map in the utility model.
Among the figure, 1-cable, 2-grout off layer, the 3-sealant that foams.
Embodiment
Describe in further detail below in conjunction with the specific embodiment of accompanying drawing the utility model.
As shown in Figure 2; The plugging device of underground substation cable cavern; The grout off layer 2-1 and the grout off layer 2-2 that comprise cable cavern through walls interior cable 1 and hole, cable aperture through walls two ends between the grout off layer 2 at hole, cable aperture through walls two ends, are provided with foaming sealant 3.
Wherein, a wall pipe is set in the cable cavern through walls.After three-phase turnkey cable handled with water-repellent paint, obtain the phase-splitting cable after the water-proofing treatment.Cable 1 is arranged in the wall pipe through after the water-proofing treatment, and said foaming sealant 3 is arranged in the slit of cable 1 and wall pipe, and wall pipe can be the plastic tube of burying underground in advance.Said foaming sealant is the foaming water-stop, can charge in the gap of cable aperture through walls and cable with the pressure apparatus water-stop that will foam, perhaps between the slit of cable and wall pipe.Forbid to move because add the 2-3 hour inner cable of foaming behind the water-stop, thus the foaming water-stop can be after whole cables be all with grout off, add together when cable is no longer moved.The foaming water-stop fully expands in the gap, extends after pressure apparatus adds, and plays sealing and waterproof effect.
In another embodiment, said foaming sealant is the thermal expansion elastic sealing compound, like polyurethane.The thermal expansion elastic sealing compound plays the effect of elastic packing after the thermal expansion that has absorbed cable size changes.
The utility model cuts off leak paths in cable cavern shutoff and the cable body by separate processes and becomes together processing, and change one heavily protection is multiple protective; Adopt the sealed expansion assembly to seal filled cable and empty gap; And with the gap of grout off layer; Leak paths before cutting off cable cavern fully, in the middle cable body; The interior leak paths of holes blocking and cable body is realized through a simple assembly together, effectively protected the safety of equipment in cable termination and the switch cubicle, saved the cost of maintenance work greatly.
Claims (3)
1. the plugging device of a underground substation cable cavern comprises cable and the grout off layer at hole, cable aperture through walls two ends in the cable cavern through walls, it is characterized in that:
Between the grout off layer at hole, cable aperture through walls two ends, the foaming sealant is set.
2. the plugging device of underground substation according to claim 1 cable cavern is characterized in that a wall pipe is set in the said cable cavern through walls, and said cable is arranged in the wall pipe, and said foaming sealant is arranged in the slit of cable and wall pipe.
3. the plugging device of underground substation according to claim 1 and 2 cable cavern is characterized in that said foaming sealant is the thermal expansion elastic sealing compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201070050U CN202503234U (en) | 2012-03-20 | 2012-03-20 | Plugging device of cable hole of underground substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201070050U CN202503234U (en) | 2012-03-20 | 2012-03-20 | Plugging device of cable hole of underground substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202503234U true CN202503234U (en) | 2012-10-24 |
Family
ID=47039834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201070050U Expired - Lifetime CN202503234U (en) | 2012-03-20 | 2012-03-20 | Plugging device of cable hole of underground substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202503234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023717A (en) * | 2017-04-07 | 2017-08-08 | 中电保力（北京）科技有限公司 | A kind of cable or pipeline run through the airtight method for blocking of structure |
| CN117937349A (en) * | 2024-03-18 | 2024-04-26 | 中国电建集团西北勘测设计研究院有限公司 | High-pressure gas storage warehouse cable threading sealing device |
-
2012
- 2012-03-20 CN CN2012201070050U patent/CN202503234U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023717A (en) * | 2017-04-07 | 2017-08-08 | 中电保力（北京）科技有限公司 | A kind of cable or pipeline run through the airtight method for blocking of structure |
| CN117937349A (en) * | 2024-03-18 | 2024-04-26 | 中国电建集团西北勘测设计研究院有限公司 | High-pressure gas storage warehouse cable threading sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202972224U (en) | Water-proof sleeve for cable wall penetration | |
| KR100777263B1 (en) | Underground power cable connect unit | |
| CN202503234U (en) | Plugging device of cable hole of underground substation | |
| CN205882178U (en) | Power cable connector lug | |
| CN203326532U (en) | 12kV buried cable branching box | |
| CN104806830A (en) | Rainproof device for butting surfaces of pipeline flanges of GIS equipment | |
| CN204647623U (en) | GIS device piping flange interface rain insensitive device | |
| CN202949202U (en) | Main body of intermediate connector of cross-linked cable and novel intermediate connector formed by same | |
| CN104078898A (en) | Transmission cable lightning protection device and method | |
| CN102163829B (en) | Fully-sealed buried cable branch box | |
| CN203632153U (en) | Outdoor area cable protection device | |
| CN204304390U (en) | Buried cable straight joint | |
| CN209691432U (en) | A kind of resistance to dilatory cable | |
| CN207753438U (en) | A kind of buried type High-Voltage Cable Branching Case | |
| CN208078198U (en) | A kind of subway corrosion-resistant grounding leading-out device that efficiently blocks water | |
| KR20100036801A (en) | Electricity cable protection equipment | |
| CN207218179U (en) | Wall bushing of substation component | |
| CN205692989U (en) | A kind of insulation puncture line clamping | |
| CN204668893U (en) | Expansion blockage | |
| CN205282262U (en) | Novel piping lane ground following formula transformer | |
| CN204067918U (en) | A kind of waterproof electric power system | |
| CN206364455U (en) | A kind of cable protection pipe mouth of pipe big envelope | |
| CN104767131A (en) | Power distribution cabinet base | |
| CN210468744U (en) | Underground distribution room cable waterproof construction | |
| CN216052322U (en) | Transformer substation framework down-leading optical cable waterproof device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
|
| CX01 | Expiry of patent term |