CN204423993U - Anticorrosion moistureproof power cable with cross-linked polyethylene insulation - Google Patents

Anticorrosion moistureproof power cable with cross-linked polyethylene insulation Download PDF

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Publication number
CN204423993U
CN204423993U CN201520136562.9U CN201520136562U CN204423993U CN 204423993 U CN204423993 U CN 204423993U CN 201520136562 U CN201520136562 U CN 201520136562U CN 204423993 U CN204423993 U CN 204423993U
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CN
China
Prior art keywords
layer
cross
power cable
linked polyethylene
polyethylene insulation
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
Application number
CN201520136562.9U
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Chinese (zh)
Inventor
李述合
张勇
徐建军
张沛瑶
张冬冬
李春燕
李家起
孙永和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
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Publication date
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Priority to CN201520136562.9U priority Critical patent/CN204423993U/en
Application granted granted Critical
Publication of CN204423993U publication Critical patent/CN204423993U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of anticorrosion moistureproof power cable with cross-linked polyethylene insulation, comprise surrounding layer and be placed at least one insulated wire cores in described surrounding layer, described surrounding layer is coated with fire-retardant belting layer, longitudinal water-blocking layer, separator, armour, fire-retardant band and restrictive coating from inside to outside successively, internal shield, insulating barrier, outer shielding layer and metal screen layer that described insulated wire cores comprises conductor and is coated on successively from inside to outside on described conductor, and described internal shield, described insulating barrier and described outer shielding layer adopt three-layer co-extruded mode to combine.Anticorrosion moistureproof power cable with cross-linked polyethylene insulation in the utility model is fire-retardant but also anticorrosion protection against the tide not only.

Description

Anticorrosion moistureproof power cable with cross-linked polyethylene insulation
Technical field
The utility model relates to power cable technical field, in particular to the anticorrosion moistureproof power cable with cross-linked polyethylene insulation of one.
Background technology
At present, along with the fast development of national economy and power industry, the demand of each field to power cable with cross-linked polyethylene insulation increases day by day, some area instructions for uses to power cable with cross-linked polyethylene insulation as special in coastal cities environment are also more and more higher, not only need cable to have good insulating properties and anti-flammability, require strict to the water resistance of cable simultaneously.The water resistance of the common fire-retardant electric power in existing known technology is poor, cable is immersed in water or for a long time and works in wet condition, and hydrone is easy in the insulating barrier of cable, form water tree, thus causes the insulating barrier of cable breakdown, cause electric leakage, and the useful life of cable is short.In addition, the separator of common flame-proof power cable and restrictive coating adopt pvc material to make, and can release a large amount of toxic gases, as bioxin, cause serious harm to human body when cable fire.
Utility model content
Technical problem to be solved in the utility model is, provides a kind of power cable of not only fire-retardant but also anticorrosion protection against the tide.
Therefore, the technical solution of the utility model is as follows:
A kind of anticorrosion moistureproof power cable with cross-linked polyethylene insulation, comprise surrounding layer and be placed at least one insulated wire cores in described surrounding layer, described surrounding layer is coated with fire-retardant belting layer, longitudinal water-blocking layer, separator, armour, fire-retardant band and restrictive coating from inside to outside successively, internal shield, insulating barrier, outer shielding layer and metal screen layer that described insulated wire cores comprises conductor and is coated on successively from inside to outside on described conductor, and described internal shield, described insulating barrier and described outer shielding layer adopt three-layer co-extruded mode to combine.
When described insulated wire cores is many, between described insulated wire cores and described surrounding layer, be filled with flame retardant filler.
The semiconductive material that described internal shield and outer shielding layer are set by water resistant is made.
Described insulating barrier is made up of ultra-clean cross-linking polyethylene materials.
The copper strips layer of described metal screen layer to be thickness be 0.11 ~ 0.13mm.
Described fire-retardant belting layer is LSOH anti-flaming band, and the double-deck wrapped outside in described insulated wire cores.
The aluminium-plastic tape of described longitudinal water-blocking layer to be thickness be 0.45 ~ 0.55mm.
Described separator and described restrictive coating are made by halogen-free and low-smoke flame-retardant polyolefin material.
Described armour forms by aluminium alloy chain armouring Double-layer gap is wrapped.
Power cable in the utility model, internal shield, insulating barrier and outer shielding layer adopt three-layer co-extruded mode to combine, and the semiconductive material that internal shield and outer shielding layer are water resistant tree is made, and can improve the electrified performance of cable, thus extend the useful life of cable; Fire-retardant belting layer is LSOH anti-flaming band, and the double-deck wrapped outside in insulated wire cores, the fire retardancy of cable can be increased; The copper of longitudinal water-blocking layer to be thickness be 0.5mm moulds compound composite band, makes cable have good block-water performance; Separator and restrictive coating are made by halogen-free and low-smoke flame-retardant polyolefin material, can play fire-retardant effect, and can not produce toxic gas during cable fire, good environmental protection; Armour forms by chain armouring Double-layer gap is wrapped, and be also provided with fire-retardant band between armour and restrictive coating, can effectively prevent mouse or other animals to bite cable and cause cable bad, fire-retardant band not only has fire-retardant effect, can also with the gap also reducing to be formed between steel band and sheath, thus reduce the interior shear stress of sheath, prevent sheath from ftractureing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to the utility model embodiment;
Fig. 2 is the structural representation of the anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to another embodiment of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As depicted in figs. 1 and 2, according to the anticorrosion moistureproof power cable with cross-linked polyethylene insulation of embodiment of the present utility model, at least one insulated wire cores 1 comprising surrounding layer 9 and be placed in described surrounding layer 9, described surrounding layer 9 is coated with fire-retardant belting layer 2 from inside to outside successively, longitudinal water-blocking layer 3, separator 4, armour 5, fire-retardant band 6 and restrictive coating 7, the internal shield 1-2 that described insulated wire cores 1 comprises conductor 1-1 and is coated on successively from inside to outside on described conductor 1-1, insulating barrier 1-3, outer shielding layer 1-4 and metal screen layer 1-5, and described internal shield 1-2, described insulating barrier 1-3 and described outer shielding layer 1-4 adopts three-layer co-extruded mode to combine.
When described insulated wire cores 1 is many, as shown in Figure 2, between described insulated wire cores 1 and described surrounding layer 9, flame retardant filler 8 is filled with.
The semiconductive material that described internal shield 1-2 and outer shielding layer 1-4 is set by water resistant is made.
Described insulating barrier 1-3 is made up of ultra-clean cross-linking polyethylene materials.
The copper strips layer of described metal screen layer 1-5 to be thickness be 0.11 ~ 0.13mm.
Described fire-retardant belting layer 2 is LSOH anti-flaming band, and the double-deck wrapped outside in described insulated wire cores 1.
The aluminium-plastic tape of described longitudinal water-blocking layer to be thickness be 0.45 ~ 0.55mm.
Described separator 4 and described restrictive coating 7 are made by halogen-free and low-smoke flame-retardant polyolefin material.
Described armour 5 forms by aluminium alloy chain armouring Double-layer gap is wrapped.
Power cable in the utility model, internal shield 1-2, insulating barrier 1-3 and outer shielding layer 1-4 adopt three-layer co-extruded mode to combine, and the semiconductive material that internal shield 1-2 and outer shielding layer 1-3 is water resistant tree is made, and can improve the electrified performance of cable, thus extend the useful life of cable; Fire-retardant belting layer 2 is LSOH anti-flaming band, and the double-deck wrapped outside in insulated wire cores 1, the fire retardancy of cable can be increased; The copper of longitudinal water-blocking layer 3 to be thickness be 0.5mm moulds compound composite band, makes cable have good block-water performance; Separator 4 and restrictive coating 7 are made by halogen-free and low-smoke flame-retardant polyolefin material, can play fire-retardant effect, and can not produce toxic gas during cable fire, good environmental protection; Armour 5 forms by chain armouring Double-layer gap is wrapped, and between armour 5 and restrictive coating 7, be also provided with fire-retardant band 6, can effectively prevent mouse or other animals to bite cable and cause cable bad, fire-retardant band 6 not only has fire-retardant effect, can also with the gap also reducing to be formed between steel band and sheath, thus reduce the interior shear stress of sheath, prevent sheath from ftractureing.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but this embodiment is all included within scope of the present utility model.

Claims (9)

1. an anticorrosion moistureproof power cable with cross-linked polyethylene insulation, it is characterized in that, comprise surrounding layer (9) and be placed at least one insulated wire cores (1) in described surrounding layer (9), described surrounding layer (9) is coated with fire-retardant belting layer (2) from inside to outside successively, longitudinal water-blocking layer (3), separator (4), armour (5), fire-retardant band (6) and restrictive coating (7), described insulated wire cores (1) comprises conductor (1-1) and is coated on the internal shield (1-2) on described conductor (1-1) from inside to outside successively, insulating barrier (1-3), outer shielding layer (1-4) and metal screen layer (1-5), and described internal shield (1-2), described insulating barrier (1-3) and described outer shielding layer (1-4) adopt three-layer co-extruded mode to combine.
2. anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to claim 1, it is characterized in that, described insulated wire cores (1) is many, is filled with flame retardant filler (8) between described insulated wire cores (1) and described surrounding layer (9).
3. anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to claim 1 and 2, is characterized in that, the semiconductive material that described internal shield (1-2) and outer shielding layer (1-4) are set by water resistant is made.
4. anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to claim 1 and 2, is characterized in that, described insulating barrier (1-3) is made up of ultra-clean cross-linking polyethylene materials.
5. anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to claim 1, is characterized in that, the copper strips layer of described metal screen layer (1-5) to be thickness be 0.11 ~ 0.13mm.
6. anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to claim 1, is characterized in that, described fire-retardant belting layer (2) is LSOH anti-flaming band, and the double-deck wrapped outside in described insulated wire cores (1).
7. anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to claim 1, is characterized in that, the aluminium-plastic tape of described longitudinal water-blocking layer to be thickness be 0.45 ~ 0.55mm.
8. anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to claim 1, is characterized in that, described separator (4) and described restrictive coating (7) are made by halogen-free and low-smoke flame-retardant polyolefin material.
9. anticorrosion moistureproof power cable with cross-linked polyethylene insulation according to claim 1, is characterized in that, described armour (5) forms by aluminium alloy chain armouring Double-layer gap is wrapped.
CN201520136562.9U 2015-03-10 2015-03-10 Anticorrosion moistureproof power cable with cross-linked polyethylene insulation Expired - Fee Related CN204423993U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520136562.9U CN204423993U (en) 2015-03-10 2015-03-10 Anticorrosion moistureproof power cable with cross-linked polyethylene insulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520136562.9U CN204423993U (en) 2015-03-10 2015-03-10 Anticorrosion moistureproof power cable with cross-linked polyethylene insulation

Publications (1)

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CN204423993U true CN204423993U (en) 2015-06-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110322995A (en) * 2019-06-27 2019-10-11 上海永进电缆(集团)有限公司 Crosslinked polyethylene nano-composite insulating cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110322995A (en) * 2019-06-27 2019-10-11 上海永进电缆(集团)有限公司 Crosslinked polyethylene nano-composite insulating cable

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150624

Termination date: 20200310

CF01 Termination of patent right due to non-payment of annual fee