CN201063433Y - Integral compound full sealing power cable shielding layer earth casing - Google Patents
Integral compound full sealing power cable shielding layer earth casing Download PDFInfo
- Publication number
- CN201063433Y CN201063433Y CNU2007200852543U CN200720085254U CN201063433Y CN 201063433 Y CN201063433 Y CN 201063433Y CN U2007200852543 U CNU2007200852543 U CN U2007200852543U CN 200720085254 U CN200720085254 U CN 200720085254U CN 201063433 Y CN201063433 Y CN 201063433Y
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- China
- Prior art keywords
- gold utensil
- utility
- cable sheath
- power cable
- model
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Abstract
The utility model discloses an integral composite fully sealing power cable sheath earthed case, relating to a high voltage power cable earthed case. The utility model comprises a connecting hardware (1) and a cable sheath protector (2), wherein a case body is arranged and consists of insulating resin (3), insulating rubber (4) and a stainless steel casing (5) which are connected in turn from inside to outside; the connecting hardware (1) and the cable sheath protector (2) which are connected with each other are packaged inside of the insulating resin (3); moreover, the wiring pile head of the connecting hardware (1) is exposed outside the case body. The utility model includes three earthing forms, i.e. sheath direct earthing, sheath protective earthing and crossing connection protective earthing; moreover, with small volume, convenient installation and good quality, the utility model can effectively solve the long-standing problems of the prior cable sheath earthed case such as wetting, water seepage and short circuit; therefore, the utility model is suitable to replace the prior ordinary cable sheath earthed case, and has a broad application prospect.
Description
Technical field
The utility model relates to a kind of high-tension cable ground connection case, relates in particular to the compound hermetically sealed electric power cable sheath ground connection case of a kind of integral body.
Background technology
High voltage power cable sheath ground connection case fault causes because of poor sealing often.Existing ground connection case is by seal washer, marine glue casing to be carried out simple waterproof sealing to handle, and into water easily makes moist; And existing ground connection case, because the requirement of air insulation distance, it is bigger that volume is also all done, and can be subjected to spatial limitation when mounted.
Often pour water easily in domestic cable trough and cable tunnel, local even long-term immersions at some are so high voltage power cable sheath ground connection case may be for a long time moved in water or under the very big environment of moisture.Sealing property to the ground connection case is a test greatly like this, and common ground connection case moves under this environment will exist very big potential safety hazard, so the power industry safe operation task of top priority is a kind of hermetically sealed electric power cable sheath ground connection case of exploitation.
Summary of the invention
The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect that prior art exists, and provides a kind of integral body compound hermetically sealed electric power cable sheath ground connection case.
The purpose of this utility model is achieved in that
Specifically, as Fig. 1,2,3, the utility model from inside to outside is made up of the insulating resin (3), electro-insulating rubber (4), the stainless steel casing (5) that connect successively;
In insulating resin (3) or be packaged with and connect gold utensil (1), or be packaged with interconnective connection gold utensil (1) and cable protective layer protector (2);
The wiring pile crown that connects gold utensil (1) exposes the casing outside.
Compare with existing plain edition cable sheath ground connection case, the utlity model has following advantage and good effect:
1, volume is little, easy for installation;
2, quality is good, fundamentally solved effectively cable sheath ground connection casing long-standing such as make moist, problem such as water inlet and short circuit.
3, be applicable to the improvement of existing plain edition cable sheath ground connection case, have broad application prospects.
Description of drawings
Fig. 1 is the utility model structure chart (the direct ground connection of sheath);
Fig. 2 is the utility model structure chart (sheath protective earthing);
Fig. 3 is the utility model structure chart (cross interconnected protective earthing).
Wherein:
1-connects gold utensil;
The 2-cable protective layer protector;
The 3-insulating resin;
The 4-electro-insulating rubber;
The 5-stainless steel casing.
Embodiment
Describe in detail below in conjunction with drawings and Examples:
One, the utility model comprises three kinds of forms:
1, the direct ground connection of sheath, as Fig. 1, being encapsulated in insulating resin (3) the inside is to connect gold utensil (1), the wiring pile crown that connects gold utensil (1) exposes the casing outside.
2, sheath protective earthing, as Fig. 2, being encapsulated in insulating resin (3) the inside is interconnective connection gold utensil (1) and cable protective layer protector (2), the wiring pile crown that connects gold utensil (1) exposes the casing outside.
3, cross interconnected protective earthing, as Fig. 3, being encapsulated in insulating resin (3) the inside is connection gold utensil (1) and the cable protective layer protector (2) that coordinated transposition connects, the wiring pile crown that connects gold utensil (1) exposes the casing outside.
Two, production technology
The utility model is taked the injection-molding moulding process, comprises the following steps:
1. at first will connect gold utensil (1) and cable protective layer protector (2) connects by certain electric connecting mode, then integral sealing in insulating material (3), and reserve power cable line Wiring port;
2. utilize the whole combination process of rubber to form the secondary seal fish tail and waterproof layer at insulating material (3) the whole compound one deck electro-insulating rubber in surface (4);
3. a stainless steel casing of covering (5) outside at last makes it to become whole compound full seal type power cable sheath ground connection case.
When 4. install and use at the scene, only need cable line Wiring port connecting portion be carried out simply encapsulation process with waterproof gasket cement and thermal contraction protecting pipe after, can put into operation.
Three, detect test
The utility model detects test through " power industry electric equipment quality inspection test center ", mainly comprises:
1, direct current 1mA reference voltage test
2, Leakage Current test under 0.75 times of direct current 1mA reference voltage
3, great current impact test
4, leakage test
5, power-frequency voltage test
6, impulse voltage test
All meet request of national standard.
Claims (4)
1. the compound hermetically sealed electric power cable sheath ground connection case of integral body comprises connecting gold utensil (1) and cable protective layer protector (2); It is characterized in that:
From inside to outside, form by the insulating resin (3), electro-insulating rubber (4), the stainless steel casing (5) that connect successively;
In insulating resin (3) or be packaged with and connect gold utensil (1), or be packaged with interconnective connection gold utensil (1) and cable protective layer protector (2);
The wiring pile crown that connects gold utensil (1) exposes the casing outside.
2. by the compound hermetically sealed electric power cable sheath ground connection case of the described a kind of integral body of claim 1, it is characterized in that:
What be encapsulated in insulating resin (3) the inside is to connect gold utensil (1), and the wiring pile crown that connects gold utensil (1) exposes the casing outside.
3. by the compound hermetically sealed electric power cable sheath ground connection case of the described a kind of integral body of claim 1, it is characterized in that:
What be encapsulated in insulating resin (3) the inside is interconnective connection gold utensil (1) and cable protective layer protector (2), and the wiring pile crown that connects gold utensil (1) exposes the casing outside.
4. by the compound hermetically sealed electric power cable sheath ground connection case of the described a kind of integral body of claim 1, it is characterized in that:
What be encapsulated in insulating resin (3) the inside is connection gold utensil (1) and the cable protective layer protector (2) that coordinated transposition connects, and the wiring pile crown that connects gold utensil (1) exposes the casing outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200852543U CN201063433Y (en) | 2007-06-15 | 2007-06-15 | Integral compound full sealing power cable shielding layer earth casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200852543U CN201063433Y (en) | 2007-06-15 | 2007-06-15 | Integral compound full sealing power cable shielding layer earth casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201063433Y true CN201063433Y (en) | 2008-05-21 |
Family
ID=39451820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200852543U Expired - Fee Related CN201063433Y (en) | 2007-06-15 | 2007-06-15 | Integral compound full sealing power cable shielding layer earth casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201063433Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761075A (en) * | 2011-04-27 | 2012-10-31 | 上海市电力公司 | Transposition device with voltage alarm function |
| CN103698653A (en) * | 2013-12-30 | 2014-04-02 | 国家电网公司 | System and method for detecting earth fault of sheath of single-core power cable on basis of circulation measurement |
| CN104113005A (en) * | 2014-06-18 | 2014-10-22 | 国家电网公司 | High-voltage cable multifunctional grounding device |
-
2007
- 2007-06-15 CN CNU2007200852543U patent/CN201063433Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761075A (en) * | 2011-04-27 | 2012-10-31 | 上海市电力公司 | Transposition device with voltage alarm function |
| CN103698653A (en) * | 2013-12-30 | 2014-04-02 | 国家电网公司 | System and method for detecting earth fault of sheath of single-core power cable on basis of circulation measurement |
| CN103698653B (en) * | 2013-12-30 | 2016-05-04 | 国家电网公司 | Single-core power cables sheath ground-fault detection system and the method measured based on circulation |
| CN104113005A (en) * | 2014-06-18 | 2014-10-22 | 国家电网公司 | High-voltage cable multifunctional grounding device |
| CN104113005B (en) * | 2014-06-18 | 2017-01-18 | 国家电网公司 | High-voltage cable multifunctional grounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20120615 |