CN202978198U - High-voltage cable intermediate joint - Google Patents
High-voltage cable intermediate joint Download PDFInfo
- Publication number
- CN202978198U CN202978198U CN 201220649086 CN201220649086U CN202978198U CN 202978198 U CN202978198 U CN 202978198U CN 201220649086 CN201220649086 CN 201220649086 CN 201220649086 U CN201220649086 U CN 201220649086U CN 202978198 U CN202978198 U CN 202978198U
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- cable
- joint
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Abstract
The utility model discloses a high-voltage cable intermediate joint. The high-voltage cable intermediate joint comprises a cable sheath (1), a cable core (2), and a joint body (3) which is located in the cable sheath (1) corresponding to the cable core (2). A protective case (4) is arranged outside the cable sheath (1), a potting adhesive layer (5) for sealing is arranged between the cable sheath (1) and the joint body (3), and a sealing rubber strip (6) for sealing the gap between the end portion of the cable sheath (1) and the cable core (2) is arranged outside the joint body (3). According to the utility model, by arranging the protective case and the ethylene-propylene-diene-terpolymer rubber foaming sealing strip, the sealing effect of the cable joint can be ensured, the high-voltage cable intermediate joint is applicable in underwater or harsh operating environments to prevent the water ingress of the cable joint and ensure the reliable operation of the cable; and at the same time, by arranging energy discharging holes, the joint can be used to perform pressure discharging in a specified direction when an explosion occurs, so the damage on other facilities can be avoided; and characteristics of high operating safety and convenient utilization can be realized.
Description
Technical field
The utility model relates to the electric cable accessories technical field, specifically a kind ofly adopts totally-enclosed waterproofing design and has high-voltage cable middle joint explosion-proof, fire-proof function.
Background technology
Universal along with power cable chemical industry journey, the cable fault rate also increases thereupon, and a host of facts prove, and most cable fault is relevant with electric cable accessories, particularly cable intermediate joint.Existing cable intermediate joint, for preventing that moisture from entering in transition joint, generally to adopt water blocking tape to be wound around the method for joint body end, but after adopting this mode, water blocking tape between layers and still have the gap between water blocking tape and cable core, sealing is relatively poor, and moisture also might enter thus, and in use still there is more serious potential safety hazard in power cable.
Summary of the invention
The purpose of this utility model is the defective for prior art, provides a kind of and adopts totally-enclosed waterproofing design and have high-voltage cable middle joint explosion-proof, fire-proof function.
The purpose of this utility model solves by the following technical programs:
A kind of high-voltage cable middle joint, comprise cable cover(ing), cable core and the joint body that be positioned at cable cover(ing) corresponding with cable core, the outside that it is characterized in that described cable cover(ing) is provided with protection box, be provided with the embedding glue-line in order to sealing between cable cover(ing) and joint body, the outside of described joint body is provided with the sealing joint strip of sealing cable sheath end and cable core gap
Described sealing joint strip adopts the ethylene propylene diene rubber foaming adhesive tape to make.
The inboard of described joint body is provided with has flexible rubber layer, and described rubber layer is positioned at the embedding glue-line inboard of ring-type.
Described protection box is provided with that let out can the hole.
The utility model has the following advantages compared to existing technology:
The utility model adds protection box and adopts the ethylene propylene diene rubber foaming adhesive tape sealing in cable cover(ing) end and cable core gap by the outside at cable cover(ing), guarantee the sealing effectiveness of cable joint, be applicable under water or abominable running environment, prevent the cable joint water inlet, guarantee the reliability service of cable; Let out simultaneously can the hole setting guarantee that this joint when blasting, carries out pressure release by assigned direction, avoid destroying other facilities, have safety in operation characteristics high, easy to use, the occasion such as be applicable to lay in direct-burried, work well or tunnel.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Wherein: 1-cable cover(ing); 2-cable core; 3-joint body; 4-protection box; 5-embedding glue-line; 6-fluid sealant; 7-rubber layer; 8-letting out can the hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
As shown in Figure 1: a kind of high-voltage cable middle joint, comprise cable cover(ing) 1, cable core 2 and the joint body that be positioned at cable cover(ing) 13 corresponding with cable core 2, be provided with protection box 4 in the outside of cable cover(ing) 1, protection box 4 is provided with that let out can hole 8, this let out can the hole during 8 operation through special-purpose lid sealing, the waterproof of cable joint, protection against the tide in the time of both can guaranteeing to move also can be when cable joint be blasted, pressure release is carried out by assigned direction in cable joint inside, avoids destroying other facilities; Be provided with the embedding glue-line 5 in order to sealing between cable cover(ing) 1 and joint body 3, the outside of joint body 3 is provided with the sealing joint strip 6 of sealing cable sheath 1 end and cable core 2 gaps, sealing adhesive tape 6 adopts the ethylene propylene diene rubber foaming adhesive tape to make, guarantee the sealing effectiveness of cable joint, be applicable under water or abominable running environment, prevent the cable joint water inlet, guarantee the reliability service of cable; Be in addition the elasticity of guaranteeing this joint and inner sealing, be provided with in the inboard of joint body 3 and have flexible rubber layer 7, rubber layer 7 is positioned at embedding glue-line 5 inboards of ring-type.Protection box 4 and cable cover(ing) 1 adopt the material with good flame-retardance energy to make, and can avoid cable joint to hinder for some reason burning or explode and relate to other parallel cables, equipment.
The utlity model has safety in operation characteristics high, easy to use, the occasion such as be applicable to lay in direct-burried, work well or tunnel.
Above embodiment only is explanation technological thought of the present utility model, can not limit protection range of the present utility model with this, every technological thought according to the utility model proposes, any change of doing on the technical scheme basis is within all falling into the utility model protection range; The technology that the utility model does not relate to all can be realized by prior art.
Claims (4)
1. high-voltage cable middle joint, comprise cable cover(ing) (1), cable core (2) and the joint body that be positioned at cable cover(ing) (1) (3) corresponding with cable core (2), the outside that it is characterized in that described cable cover(ing) (1) is provided with protection box (4), be provided with the embedding glue-line (5) in order to sealing between cable cover(ing) (1) and joint body (3), the outside of described joint body (3) is provided with the sealing joint strip (6) of sealing cable sheath (1) end and cable core (2) gap.
2. high-voltage cable middle joint according to claim 1, is characterized in that described sealing joint strip (6) adopts the ethylene propylene diene rubber foaming adhesive tape to make.
3. high-voltage cable middle joint according to claim 1 and 2, the inboard that it is characterized in that described joint body (3) is provided with has flexible rubber layer (7), and described rubber layer (7) is positioned at embedding glue-line (5) inboard of ring-type.
4. high-voltage cable middle joint according to claim 1 and 2 is characterized in that described protection box (4) is provided with that let out can hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649086 CN202978198U (en) | 2012-11-30 | 2012-11-30 | High-voltage cable intermediate joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649086 CN202978198U (en) | 2012-11-30 | 2012-11-30 | High-voltage cable intermediate joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978198U true CN202978198U (en) | 2013-06-05 |
Family
ID=48519225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220649086 Expired - Lifetime CN202978198U (en) | 2012-11-30 | 2012-11-30 | High-voltage cable intermediate joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022955A (en) * | 2012-11-30 | 2013-04-03 | 江苏澳能电力电缆附件有限公司 | Intermediate joint of high-voltage cables |
-
2012
- 2012-11-30 CN CN 201220649086 patent/CN202978198U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022955A (en) * | 2012-11-30 | 2013-04-03 | 江苏澳能电力电缆附件有限公司 | Intermediate joint of high-voltage cables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |