CN202042267U - Marine power cable with flame-retardant polyolefin inner sheath and cross-linked polyolefin outer sheath - Google Patents

Marine power cable with flame-retardant polyolefin inner sheath and cross-linked polyolefin outer sheath Download PDF

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Publication number
CN202042267U
CN202042267U CN2011200927175U CN201120092717U CN202042267U CN 202042267 U CN202042267 U CN 202042267U CN 2011200927175 U CN2011200927175 U CN 2011200927175U CN 201120092717 U CN201120092717 U CN 201120092717U CN 202042267 U CN202042267 U CN 202042267U
Authority
CN
China
Prior art keywords
cross
power cable
conductor
inner sheath
polyolefin
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
CN2011200927175U
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Chinese (zh)
Inventor
谢华
张华仓
束维武
谢罡
张静
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.)
Lvbao Cable Group Co Ltd
Original Assignee
Lvbao Cable 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 Lvbao Cable Group Co Ltd filed Critical Lvbao Cable Group Co Ltd
Priority to CN2011200927175U priority Critical patent/CN202042267U/en
Application granted granted Critical
Publication of CN202042267U publication Critical patent/CN202042267U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a marine power cable with a flame-retardant polyolefin inner sheath and a cross-linked polyolefin outer sheath. The marine power cable comprises two conductor cable cores, each conductor cable core comprises a copper conductor, a flame-retardant layer, a shielding layer and a cross-linked polyethylene insulating bush, and a wrapping tape, a polyolefin inner sheath, a copper wire braiding armored layer and a cross-linked polyolefin outer sheath are arranged outside the conductor cable core. The marine power cable has a simple structure and is easy to realize, the polyolefin inner sheath and the cross-linked polyolefin outer sheath outside the conductor cable core can effectively improve the flame retarding capacity of the power cable as well as safety of the power cable, a flame-retardant mica layer outside the copper conductor can effectively improve the flame retarding property of the conductor cable core, and the shielding layer can effectively shield electromagnetic wave.

Description

Fire retardant polyolefin inner sheath, cross-linked polyolefin oversheath ship power cable
Technical field
The utility model relates to the power cable field, is specially a kind of fire retardant polyolefin inner sheath, cross-linked polyolefin oversheath ship power cable.
Background technology
Power cable is the electric equipment that is used to transmit and distribute electric energy.In power circuit, the shared proportion of cable increases just gradually.It is transmission and distribute high-power electric energy in the basic routing line of electric power system that power cable mainly acts on.Modern steamer electrifing degree is higher, need use a large amount of power cables and carry out electric energy transmitting, and modern steamer has requirement for the flame-retarding characteristic of power cable, and traditional power cable can't satisfy the demand of modern steamer.
The utility model content
The purpose of this utility model provides a kind of fire retardant polyolefin inner sheath, cross-linked polyolefin oversheath ship power cable, can't satisfy the problem of modern steamer demand with the power cable flame-retarding characteristic that solves prior art.
In order to achieve the above object, the technical scheme that the utility model adopted is:
Fire retardant polyolefin inner sheath, cross-linked polyolefin oversheath ship power cable, it is characterized in that: the conductor thread core that includes two compound bundle strands, flame retardant coating, screen, crosslinked polyetylene insulated cover that described conductor thread core is enclosed within outside the copper conductor by copper conductor, successively constitute, the twisting pitch ratio of two conductor thread cores is less than 10 times, and copper conductor resistivity is less than 0.017241 Ω .mm 2/ m, two conductor thread core outsides are coated with twining package tape, polyolefin inner sheath, braided steel wire armour, cross-linked polyolefin oversheath successively.Described fire retardant polyolefin inner sheath, cross-linked polyolefin oversheath ship power cable is characterized in that: described copper conductor surface is coated with the tin layer.
Described fire retardant polyolefin inner sheath, cross-linked polyolefin oversheath ship power cable is characterized in that: described braided steel wire armour is formed by the braided steel wire that the surface is coated with the zinc-tin layer.
The utility model is simple in structure, is easy to realize.Conductor thread core plays the effect of electric energy transmitting, by compound bundle strand two conductor thread cores are twisted together, and twisting pitch can guarantee the power cable compact conformation than less than 10 times, and reduce the loss of electric energy, copper conductor resistivity is less than 0.017241 Ω .mm 2/ m can improve the efficiency of transmission of electric energy, the outer fire-resistant mica layer of copper conductor can improve the fire resistance of conductor thread core effectively, screen outside the copper conductor is shielding electromagnetic wave effectively, be woven into the steel wire external galvanized layer tin layer of braided steel wire armour, prevent the oxidative phenomena in the course of processing and use, polyolefin inner sheath outside the conductor thread core, the fire retardancy that the cross-linked polyolefin oversheath can improve power cable effectively, the fail safe that has also improved power cable.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1.Fire retardant polyolefin inner sheath, cross-linked polyolefin oversheath ship power cable, include the conductor thread core 1 of two compound bundle strands, flame retardant coating 3, screen 4, crosslinked polyetylene insulated covers 5 that conductor thread core 1 is enclosed within outside the copper conductor 2 by copper conductor 2, successively constitute, copper conductor 2 surfaces are coated with the tin layer, the twisting pitch ratio of two conductor thread cores 1 is less than 10 times, and copper conductor 2 resistivity are less than 0.017241 Ω .mm 2/ m, two conductor thread core 1 outsides are coated with twining package tape 6, polyolefin inner sheath 7, braided steel wire armour 8, cross-linked polyolefin oversheath 9 successively.Braided steel wire armour 8 is formed by the braided steel wire that the surface is coated with the zinc-tin layer.
In the utility model, the copper conductor oxygen-free copper bar, the resistivity of copper is less than 0.017241 Ω .mm 2/ m (20 ℃).Annealed copper wire after the wire drawing carries out zinc-plated processing, prevents the oxidative phenomena in the course of processing and use.Conductor thread core adopts compound bundle strand, and the twisting pitch ratio is less than 10 times.Crosslinked polyetylene insulated composite material is adopted in insulation.Semi-finished product soak voltage or dry type spark test.Inner sheath adopts polyolefin jacket material.Adopt zinc-plated tin braided steel wire.Oversheath adopts the cross-linked polyolefin protective cover material.The exfactory inspection project has conductor DC resistance, insulation resistance, AC voltage withstand test, construction of cable dimensional gaughing, the inspection of cable outward appearance sign etc.

Claims (3)

1. fire retardant polyolefin inner sheath, cross-linked polyolefin oversheath ship power cable, it is characterized in that: the conductor thread core that includes two compound bundle strands, flame retardant coating, screen, crosslinked polyetylene insulated cover that described conductor thread core is enclosed within outside the copper conductor by copper conductor, successively constitute, the twisting pitch ratio of two conductor thread cores is less than 10 times, and copper conductor resistivity is less than 0.017241 Ω .mm 2/ m, two conductor thread core outsides are coated with twining package tape, polyolefin inner sheath, braided steel wire armour, cross-linked polyolefin oversheath successively.
2. fire retardant polyolefin inner sheath according to claim 1, cross-linked polyolefin oversheath ship power cable is characterized in that: described copper conductor surface is coated with the tin layer.
3. fire retardant polyolefin inner sheath according to claim 1, cross-linked polyolefin oversheath ship power cable is characterized in that: described braided steel wire armour is formed by the braided steel wire that the surface is coated with the zinc-tin layer.
CN2011200927175U 2011-03-31 2011-03-31 Marine power cable with flame-retardant polyolefin inner sheath and cross-linked polyolefin outer sheath Expired - Fee Related CN202042267U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200927175U CN202042267U (en) 2011-03-31 2011-03-31 Marine power cable with flame-retardant polyolefin inner sheath and cross-linked polyolefin outer sheath

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200927175U CN202042267U (en) 2011-03-31 2011-03-31 Marine power cable with flame-retardant polyolefin inner sheath and cross-linked polyolefin outer sheath

Publications (1)

Publication Number Publication Date
CN202042267U true CN202042267U (en) 2011-11-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200927175U Expired - Fee Related CN202042267U (en) 2011-03-31 2011-03-31 Marine power cable with flame-retardant polyolefin inner sheath and cross-linked polyolefin outer sheath

Country Status (1)

Country Link
CN (1) CN202042267U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104392798A (en) * 2014-12-18 2015-03-04 凌卫康 Cable for power system and manufacturing method of cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104392798A (en) * 2014-12-18 2015-03-04 凌卫康 Cable for power system and manufacturing method of cable

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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: 20111116

Termination date: 20120331