CN207732407U - A kind of 0.4kV power cables underground termination - Google Patents
A kind of 0.4kV power cables underground termination Download PDFInfo
- Publication number
- CN207732407U CN207732407U CN201721676502.1U CN201721676502U CN207732407U CN 207732407 U CN207732407 U CN 207732407U CN 201721676502 U CN201721676502 U CN 201721676502U CN 207732407 U CN207732407 U CN 207732407U
- Authority
- CN
- China
- Prior art keywords
- cable
- shell
- termination
- insulation board
- power cables
- 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 - Fee Related
Links
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
- Cable Accessories (AREA)
Abstract
The utility model is related to a kind of 0.4kV power cables underground terminations, the termination includes the shell that both ends are threaded sealing hole, shell is by bolted two-piece unit formula structure, enclosure interior is provided with one group of insulation board of longitudinally parallel setting, between insulation board and shell, cable connection channel is formed between insulation board, the gap both ends of same core are attached after being each passed through the thread seal hole at both ends along same cable channel in cable, shell both ends are rubber tube, rubber pipe orifice is thread seal hole, thread seal hole is the bell shape gradually expanded outward, the plate thickness that insulate is not less than 2mm；The utility model is sealed by being threaded the cable that the shell of sealing hole connects needs, and the core of cable is isolated by the way that insulation board is arranged, avoid short trouble, termination connection is easy, sealing effect is good, it effectively prevent cable there is a phenomenon where corroding, damaging, to effectively reduce cable connection failure rate in the soil.
Description
Technical field
The utility model belongs to technical field of electric power, and in particular to a kind of 0.4kV power cables underground termination.
Background technology
0.4kV underground cables are in laid processes because the deficiency of cable length often will appear the feelings for doing intermediate connector
Condition.General low-voltage cable connection is all then to be wound with insulating tape using terminal connection or cable crimping and done insulation position
Reason.It is each with operation etc. through moisture in this way in soil environment since live most of low pressure underground cable is all native ditch direct-burried
Kind factor, cable connector are easy exothermic oxidation, cause connector to disconnect failure frequent occurrence, influence user or equipment normal power supply.
And when restoring or same processing method causes without more preferable equipment or technological means suitable for site examining and repairing, maintenance
" bomb " for having set up a not timing after the completion of repair again, to equipment, even personnel cause unnecessary injury.
Utility model content
The utility model overcomes the defect of the prior art, provides a kind of 0.4kV power cables underground termination, should
Termination is easy to operate, preferable to the cable seal effect of connection in the wet environment of soil, greatly reduces cable and connects
The failure rate of head, significantly improves equipment operational reliability and safety.
The specific technical solution of the utility model is：
A kind of 0.4kV power cables underground termination, key point are that the termination includes that both ends are threaded
The shell of sealing hole, shell are by bolted two-piece unit formula structure, and enclosure interior is provided with longitudinally parallel setting
One group of insulation board, between insulation board and shell, form cable connection channel between insulation board, the disconnection of same core in cable
Place both ends are attached after being each passed through the thread seal hole at both ends along same cable channel.
The shell both ends are rubber tube, and rubber pipe orifice is thread seal hole.
The thread seal hole is the bell shape gradually expanded outward.
The bell-mouthed angle is 5-20 degree.
The insulation plate thickness is not less than 2mm.
The utility model has the beneficial effects that：The cable connector position that the utility model will be connected by Split type casing
It is sealed, sealing position is the thread seal hole at both ends, is set as the bell shape gradually expanded outward, utilizes rubber
Elastic clamping is tightly connected position, and not only sealing effect is good, but also can be adapted for the cable of multiple diameter, and versatility is preferable,
The insulation board in shell is set for the number of core in different cables, avoids the electric short circuit that is mutually connected between core, also can
The case where avoiding puncturing when electric current is excessive is suitable for the connection of underground power cable.
The anti-corrosion present in construction and Insulation Problems, greatly reduce joint fault before this practicality utility model is solved
Rate reduces maintenance load, and more safe and reliable guarantee low pressure underground cable safe operation, substantially increasing equipment operation can
By property and security reliability.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the internal structure schematic diagram of Fig. 1.
Fig. 3 is the left view of Fig. 1.
In attached drawing, 1, thread seal hole, 2, shell, 201, rubber tube, 3, bolt, 4, insulation board, 5, cable, 501, line
Core, 6, backing plate.
Specific implementation mode
The utility model is related to a kind of 0.4kV power cables underground termination, the termination includes both ends band
It is the two-piece unit formula structure connected by bolt 3 to have the shell 2 in thread seal hole 1, shell, and shell 2 is internally provided with along vertical
To one group of insulation board 4 disposed in parallel, between insulation board 4 and shell 2, cable connection channel, cable 5 are formed between insulation board 4
In same core 501 gap both ends be each passed through the thread seal hole 1 at both ends after be attached along same cable channel.
Specific embodiment, as shown in Figure 1 to Figure 3,2 both ends of shell are rubber tube 201, and 201 endoporus of rubber tube is that screw thread is close
Sealing of hole 1, shell 2 include the upper casing and lower casing of setting symmetrical above and below, and upper casing and lower casing are provided with corresponding bolt hole up and down, and two
It is additionally provided with backing plate 6 between person, the junction sealing effect after being connected as one can be improved, the setting of split structure is just
It connects and is placed in corresponding cable connection channel in 5 each core 501 of cable, include as shown in fig. 1, in cable 5 four
Root core 501, every core 501 correspond to a cable connection channel, and upper casing and lower casing are connected and fixed by bolt 3 and are integrated
The thread seal hole 1 of structure, 2 both ends of shell can form 5 clamping of cable, clamping position for 2 inner sealing of shell
The case where structure, connecting portion of the cable 5 in shell 2 will not be influenced by slowly drained soil environment, and cable 5 suffers erosion is aobvious
It writes and alleviates, link position failure rate significantly reduces.
After shell 2 is connected as one, both ends form thread seal hole 1, and thread seal hole 1 is the loudspeaker gradually expanded outward
Mouth-shaped, bell-mouthed angle are 10 degree, are less than the angle, then 5 size of open ended cable is limited, and versatility is limited
System, is more than the angle, and cable 5 reduces with the thread contact face at horn mouth, is unfavorable for sealing.Than ruler at horn mouth minimum diameter
Very little big cable 5 is clamped on horn mouth position, is sealing state between thread seal mouth 1 and cable 5, and since rubber has
Certain deformation quantity can seal with the cable 5 of plurality of specifications and coordinate, and versatility is preferable, and 4 thickness of insulation board is not less than 2mm, excellent
It is selected as 3mm, avoids heavy current breakdown by insulation board when core 501 4.
The sealing that the utility model is used as core 501 in cable 5 by the shell 2 that can be fastened, dismantle keeps space, and
And lineation path is arranged by insulation board 4 within this space, the case where each core 501 is less prone to connection error, and
It is not easy line between each core 501, even if there is wiring position to occur loosening or damaged, the feelings of line short circuit will not occur
Condition, wiring effect are good.
Claims (5)
1. a kind of 0.4kV power cables underground termination, it is characterised in that：The termination includes that both ends are threaded
The shell (2) of sealing hole (1), shell are the two-piece unit formula structure connected by bolt (3), and shell (2) is internally provided with edge
One group of insulation board (4) of parallel longitudinal setting, between insulation board (4) and shell (2), insulation board form cable connection between (4)
Channel, the gap both ends of same core (501) are each passed through behind the thread seal hole (1) at both ends along same electricity in cable (5)
Cable channel is attached.
2. a kind of 0.4kV power cables underground according to claim 1 termination, it is characterised in that：The shell
(2) both ends are rubber tube (201), and rubber tube (201) endoporus is thread seal hole (1).
3. a kind of 0.4kV power cables underground according to claim 1 termination, it is characterised in that：The screw thread
Sealing hole (1) is the bell shape gradually expanded outward.
4. a kind of 0.4kV power cables underground according to claim 3 termination, it is characterised in that：The loudspeaker
The angle of mouth is 5-20 degree.
5. a kind of 0.4kV power cables underground according to claim 1 termination, it is characterised in that：The insulation
Plate (4) thickness is not less than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721676502.1U CN207732407U (en) | 2017-12-06 | 2017-12-06 | A kind of 0.4kV power cables underground termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721676502.1U CN207732407U (en) | 2017-12-06 | 2017-12-06 | A kind of 0.4kV power cables underground termination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207732407U true CN207732407U (en) | 2018-08-14 |
Family
ID=63097801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721676502.1U Expired - Fee Related CN207732407U (en) | 2017-12-06 | 2017-12-06 | A kind of 0.4kV power cables underground termination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207732407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863746A (en) * | 2017-12-06 | 2018-03-30 | 国家电网公司 | A kind of 0.4KV power cables underground termination |
-
2017
- 2017-12-06 CN CN201721676502.1U patent/CN207732407U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863746A (en) * | 2017-12-06 | 2018-03-30 | 国家电网公司 | A kind of 0.4KV power cables underground termination |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |