CN204130248U - Earth cable - Google Patents

Earth cable Download PDF

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Publication number
CN204130248U
CN204130248U CN201420451024.4U CN201420451024U CN204130248U CN 204130248 U CN204130248 U CN 204130248U CN 201420451024 U CN201420451024 U CN 201420451024U CN 204130248 U CN204130248 U CN 204130248U
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CN
China
Prior art keywords
cable
layer
core
conductor
wrapped
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
CN201420451024.4U
Other languages
Chinese (zh)
Inventor
张敬海
屠定显
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.)
SHANGHAI YIKAI ELECTRIC GROUP CO Ltd
Original Assignee
SHANGHAI YIKAI ELECTRIC GROUP CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI YIKAI ELECTRIC GROUP CO Ltd filed Critical SHANGHAI YIKAI ELECTRIC GROUP CO Ltd
Priority to CN201420451024.4U priority Critical patent/CN204130248U/en
Application granted granted Critical
Publication of CN204130248U publication Critical patent/CN204130248U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model earth cable, comprising: cable core and the refractory insulating layer, layer of polyester fiber, aluminum alloy strip armour, oxygen barrier layer and the galvanized steel strip armouring restrictive coating that are wrapped in successively outside described cable core.Described cable core comprises many cores, and the quantity of described core is 3, and 3 described cores are triangle disposition arrangement; Filler is provided with between described core.Described core comprises and is wrapped in the conductor shield outside conductor, crosslinked polyetylene insulated layer, insulation screen and metal screen layer successively.Described conductor is cellular.Described filler is electro-insulating rubber.The material of described oxygen barrier layer is halogen-free low-smoke high-flame cable material of polyolefin.The cellular conductor of the utility model earth cable farthest utilizes the surface area of honeycomb to increase earial drainage face, makes lightning current bleed off rapidly.And long service life, electric conductivity is excellent, cold-resistant fire-retardant, also has acid-alkali-corrosive-resisting, the advantage of oil resistant simultaneously.

Description

Earth cable
Technical field
The utility model relates to single core earth cable, belongs to electric wire field.
Background technology
In recent years, along with the quick growth, particularly rural area of Chinese national economy, urban distribution network, city capital construction facility and real estate flourish, directly promoted the development of power industry, therefore, the ground connection performance of electric wire had higher requirement.But in the past the research of earth cable is only rested on submarine cable, extra-high-tension cable and telecommunication cable, do not relate to power cable.
The requirement of present equipment to lightning protection is more and more higher, because thunder and lightning belongs to high-frequency current, to equipment produce direct infringement and consequential damages all very serious.The resistance-reducing performance of traditional earth cable is lower, and earthing effect is not fine.
Utility model content
The purpose of this utility model is to provide a kind of earth cable with good earth effect.
For solving the problems of the technologies described above, the utility model earth cable, comprising: cable core and the refractory insulating layer, layer of polyester fiber, aluminum alloy strip armour, oxygen barrier layer and the galvanized steel strip armouring restrictive coating that are wrapped in successively outside described cable core.
Described cable core comprises many cores, and the quantity of described core is 3, and 3 described cores are triangle disposition arrangement; Filler is provided with between described core.
Described core comprises and is wrapped in the conductor shield outside conductor, crosslinked polyetylene insulated layer, insulation screen and metal screen layer successively.
Described conductor is cellular.
Described filler is electro-insulating rubber.
The material of described oxygen barrier layer is halogen-free low-smoke high-flame cable material of polyolefin.
The cellular conductor of the utility model earth cable farthest utilizes the surface area of honeycomb to increase earial drainage face, makes lightning current bleed off rapidly.And long service life, electric conductivity is excellent, cold-resistant fire-retardant, also has acid-alkali-corrosive-resisting, the advantage of oil resistant simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model earth cable cross sectional representation;
Fig. 2 is the utility model earth cable core cross sectional representation.
Description of reference numerals in the utility model earth cable accompanying drawing:
1-cable core 2-refractory insulating layer 3-layer of polyester fiber
4-aluminum alloy strip armour 5-oxygen barrier layer 6-galvanized steel strip armouring restrictive coating
The crosslinked polyetylene insulated layer of 7-conductor 8-conductor shield 9-
10-insulation screen 11-metal screen layer 12-electro-insulating rubber
Embodiment
Below in conjunction with accompanying drawing, the utility model earth cable is described in further detail.
As shown in Figure 1 and Figure 2, the utility model earth cable, comprising: cable core 1 and the refractory insulating layer 2, layer of polyester fiber 3, aluminum alloy strip armour 4, halogen-free low-smoke high-flame cable material of polyolefin oxygen barrier layer 5 and the galvanized steel strip armouring restrictive coating 6 that are wrapped in successively outside cable core 1.And core comprises the conductor shield 8, crosslinked polyetylene insulated layer 9, insulation screen 10 and the metal screen layer 11 that are wrapped in successively outside cellular conductor 7.Wherein three cores are triangle disposition arrangement and between core, are provided with electro-insulating rubber 12 as filler.
The cellular conductor of the utility model earth cable farthest utilizes the surface area of honeycomb to increase earial drainage face, makes lightning current bleed off rapidly.And long service life, electric conductivity is excellent, cold-resistant fire-retardant, also has acid-alkali-corrosive-resisting, the advantage of oil resistant simultaneously.
Below the preferred embodiment that the utility model is created is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modification or replacement under the prerequisite without prejudice to the invention spirit, and these equivalent modification or replacement are all included in the application's claim limited range.

Claims (3)

1. earth cable, is characterized in that, comprising: cable core and the refractory insulating layer, layer of polyester fiber, aluminum alloy strip armour, oxygen barrier layer and the galvanized steel strip armouring restrictive coating that are wrapped in successively outside described cable core; Described cable core comprises many cores, and the quantity of described core is 3, and 3 described cores are triangle disposition arrangement; Filler is provided with between described core; Described core comprises and is wrapped in the conductor shield outside conductor, crosslinked polyetylene insulated layer, insulation screen and metal screen layer successively; Described conductor is cellular.
2. earth cable according to claim 1, is characterized in that, described filler is electro-insulating rubber.
3. earth cable according to claim 1, is characterized in that, the material of described oxygen barrier layer is halogen-free low-smoke high-flame cable material of polyolefin.
CN201420451024.4U 2014-08-11 2014-08-11 Earth cable Expired - Fee Related CN204130248U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420451024.4U CN204130248U (en) 2014-08-11 2014-08-11 Earth cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420451024.4U CN204130248U (en) 2014-08-11 2014-08-11 Earth cable

Publications (1)

Publication Number Publication Date
CN204130248U true CN204130248U (en) 2015-01-28

Family

ID=52386579

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420451024.4U Expired - Fee Related CN204130248U (en) 2014-08-11 2014-08-11 Earth cable

Country Status (1)

Country Link
CN (1) CN204130248U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109066113A (en) * 2018-07-19 2018-12-21 华翔翔能电气股份有限公司 A kind of substation's enclosed busbar bridge ground loop

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109066113A (en) * 2018-07-19 2018-12-21 华翔翔能电气股份有限公司 A kind of substation's enclosed busbar bridge ground loop

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Legal Events

Date Code Title Description
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: 20150128

Termination date: 20190811

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