CN209071026U - A kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable - Google Patents
A kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable Download PDFInfo
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- CN209071026U CN209071026U CN201822087964.0U CN201822087964U CN209071026U CN 209071026 U CN209071026 U CN 209071026U CN 201822087964 U CN201822087964 U CN 201822087964U CN 209071026 U CN209071026 U CN 209071026U
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- layer
- flame
- retardant
- resistance
- compression block
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Abstract
The utility model discloses a kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cables, including cable body, cable body includes core, resistance to compression block, putting hole, first insulating layer, fixing layer, adhesive layer and the first flame-retardant layer, the outer surface of core is equipped with the first insulating layer, first insulating layer and core are located at the inside of putting hole, putting hole is located at the inside of resistance to compression block, the outside for being tightly attached to resistance to compression block is equipped with fixing layer, the outside of fixing layer is equipped with second insulating layer, the external margin of second insulating layer is equipped with antistatic layer, the outer wall of antistatic layer is equipped with the first flame-retardant layer, the outside of first flame-retardant layer is equipped with the second flame-retardant layer.Resistance to compression block in the utility model can play the role of measuring body; it is fixedly connected between resistance to compression block by adhesive layer simultaneously; so that four groups of resistance to compression blocks form " pressure resistance column " of an entirety; " pressure resistance column " is when by ambient pressure; it not will cause stress concentration, core on its interior can be effectively protected.
Description
Technical field
The utility model relates to field of cable technology, specially a kind of Anti-pressure cross-linking polyethylene insulated fire resistant electric power electricity
Cable.
Background technique
Power cable is the cable for being used for transmission and distributing electric energy, and power cable is usually used in Urban Underground power grid, power station
Lead line, industrial and mining enterprises' in-line power and cross river sea submarine transmission, but it there are still following drawbacks in actual use:
1. cable in actual installation process, has partial cables when not installing completely and is laid on the way, at this moment such as
Fruit has gravity-type transport vehicle to roll, since the hardness of core is smaller, it will so that core can flatten, to not only make core
Intensity is lower, and more influences the transmission of electric power；
2. the insulating layer of cable is high molecular material, thermo-labile, then when a fire, the insulating layer of cable can be broken
It is bad, if surrounding someone passes through or has water that will will cause electric shock at this time, threaten to the life of people.
For this purpose, we have proposed a kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cables to solve above-mentioned drawback.
Utility model content
The purpose of this utility model is to provide a kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cables, on solving
State the problem of proposing in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of crosslinked polyetylene insulated resistance of Anti-pressure
Fire power cable, including cable body, the cable body include core, resistance to compression block, putting hole, the first insulating layer, fixing layer,
Adhesive layer and the first flame-retardant layer, the outer surface of the core are equipped with the first insulating layer, and first insulating layer and core, which are located at, to be put
The inside in hole is set, the putting hole is located at the inside of resistance to compression block, and the outside for being tightly attached to the resistance to compression block is equipped with fixing layer, described solid
The outside of given layer is equipped with second insulating layer, and the external margin of the second insulating layer is equipped with antistatic layer, the antistatic layer
Outer wall is equipped with the first flame-retardant layer, and the outside of first flame-retardant layer is equipped with the second flame-retardant layer.
Preferably, the end face of the resistance to compression block is the sector that central angle is 90 degree, and between resistance to compression block described in two adjacent groups
It is fixed with adhesive layer.
Preferably, three groups of cores are equipped in putting hole described in one group, and the edge of two adjacent groups core is tangent.
Preferably, flexible support item, the flexible support are fixed between second flame-retardant layer and the first flame-retardant layer
The both ends of item are respectively fixedly connected with the outer wall of inner wall and the first flame-retardant layer in the second flame-retardant layer, second flame-retardant layer and first
Air separate layer is formed between flame-retardant layer.
Preferably, the flexible support item is equipped with multiple groups, and flexible support item described in multiple groups is on the outer wall side of the first flame-retardant layer
Edge is arranged in equidistant ring.
Compared with prior art, the utility model has the beneficial effects that the utility model structure setting is reasonable, it is functional
By force, it has the advantage that
1. the resistance to compression block in the utility model can play the role of measuring body, while passing through that adhesive layer is fixed to be connected between resistance to compression block
It connects, so that four groups of resistance to compression blocks form " pressure resistance column " of an entirety, " pressure resistance column " not will cause when by ambient pressure
Stress is concentrated, and core on its interior can be effectively protected；
2. being equipped with the flexibility in equidistant ring arrangement between the first flame-retardant layer and the second flame-retardant layer in the utility model
Support bar, flexible support item to form air separate layer between the first flame-retardant layer and the second flame-retardant layer, and air separate layer can be prevented
Prevent external heat transfer from making second insulating layer and antistatic to the inside of cable body when only catching fire around cable body
Layer damage.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
In figure: cable body 1, the second flame-retardant layer 2, second insulating layer 3, antistatic layer 4, flexible support item 5, air separate
Layer 6, core 7, resistance to compression block 8, putting hole 9, the first insulating layer 10, fixing layer 11, adhesive layer 12, the first flame-retardant layer 13.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution: a kind of Anti-pressure cross-linking polyethylene insulated fire resistant electric power
Cable, including cable body 1, cable body 1 include core 7, resistance to compression block 8, putting hole 9, the first insulating layer 10, fixing layer 11,
The outer surface of adhesive layer 12 and the first flame-retardant layer 13, core 7 is equipped with the first insulating layer 10, and the first insulating layer 10 and core 7 are located at
The inside of putting hole 9, putting hole 9 are located at the inside of resistance to compression block 8, and the outside for being tightly attached to resistance to compression block 8 is equipped with fixing layer 11, fixing layer
11 outside is equipped with second insulating layer 3, and the external margin of second insulating layer 3 is equipped with antistatic layer 4, and the outer wall of antistatic layer 4 is set
There is the first flame-retardant layer 13, the outside of the first flame-retardant layer 13 is equipped with the second flame-retardant layer 2.
Further, the end face of resistance to compression block 8 is the sector that central angle is 90 degree, and fixed between two adjacent groups resistance to compression block 8
Equipped with adhesive layer 12.
Further, three groups of cores 7 are equipped in one group of putting hole 9, and the edge of two adjacent groups core 7 is tangent.
Further, flexible support item 5, flexible support item 5 are fixed between the second flame-retardant layer 2 and the first flame-retardant layer 13
Both ends be respectively fixedly connected with the outer wall of inner wall and the first flame-retardant layer 13 in the second flame-retardant layer 2, the second flame-retardant layer 2 and the first resistance
It fires and forms air separate layer 6 between layer 13.
Further, flexible support item 5 is equipped with multiple groups, fascia edge of the multiple groups flexible support item 5 in the first flame-retardant layer 13
It is arranged in equidistant ring.
Working principle: the resistance to compression block 8 in the utility model can play the role of it is measuring body, while by viscous between resistance to compression block 8
Knot layer 12 is fixedly connected, so that four groups of resistance to compression blocks 8 form " pressure resistance column " of an entirety, " pressure resistance column " is pressed by the external world
When power, it not will cause stress concentration, core 7 on its interior can be effectively protected and do not deform；
The flexibility in equidistant ring arrangement is equipped between the first flame-retardant layer 13 and the second flame-retardant layer 2 in the utility model
Support bar 5, flexible support item 5 to form air separate layer 6 between the first flame-retardant layer 13 and the second flame-retardant layer 2, and air separates
Layer 6 prevents external heat transfer from making second insulating layer 3 to the inside of cable body 1 when can catch fire around cable body 1
It is damaged with antistatic layer 4.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable, including cable body (1), it is characterised in that: the electricity
Cable ontology (1) includes core (7), resistance to compression block (8), putting hole (9), the first insulating layer (10), fixing layer (11), adhesive layer (12)
The first insulating layer (10), first insulating layer (10) and line are equipped with the outer surface of the first flame-retardant layer (13), the core (7)
Core (7) is located at the inside of putting hole (9), and the putting hole (9) is located at the inside of resistance to compression block (8), is tightly attached to the resistance to compression block (8)
Outside be equipped with fixing layer (11), the outside of the fixing layer (11) is equipped with second insulating layer (3), the second insulating layer (3)
External margin be equipped with antistatic layer (4), the outer wall of the antistatic layer (4) is equipped with the first flame-retardant layer (13), first resistance
The outside for firing layer (13) is equipped with the second flame-retardant layer (2).
2. a kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable according to claim 1, it is characterised in that: described
The end face of resistance to compression block (8) is the sector that central angle is 90 degree, and is fixed with adhesive layer between resistance to compression block (8) described in two adjacent groups
(12)。
3. a kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable according to claim 1, it is characterised in that: one group
Three groups of cores (7) are equipped in the putting hole (9), and the edge of two adjacent groups core (7) is tangent.
4. a kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable according to claim 1, it is characterised in that: described
It is fixed between second flame-retardant layer (2) and the first flame-retardant layer (13) flexible support item (5), the two of the flexible support item (5)
End is respectively fixedly connected with the outer wall of inner wall and the first flame-retardant layer (13) in the second flame-retardant layer (2), second flame-retardant layer (2) and
Air separate layer (6) are formed between first flame-retardant layer (13).
5. a kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable according to claim 4, it is characterised in that: described
Flexible support item (5) is equipped with multiple groups, and flexible support item (5) described in multiple groups is in equidistant ring in the fascia edge of the first flame-retardant layer (13)
Shape arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822087964.0U CN209071026U (en) | 2018-12-12 | 2018-12-12 | A kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822087964.0U CN209071026U (en) | 2018-12-12 | 2018-12-12 | A kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209071026U true CN209071026U (en) | 2019-07-05 |
Family
ID=67101640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822087964.0U Expired - Fee Related CN209071026U (en) | 2018-12-12 | 2018-12-12 | A kind of Anti-pressure cross-linked polyethylene insulation flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209071026U (en) |
-
2018
- 2018-12-12 CN CN201822087964.0U patent/CN209071026U/en not_active Expired - Fee Related
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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: 20190705 Termination date: 20191212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |