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Rare earth power cable

A power cable and rare earth technology, applied in the direction of power cables, power cables with shielding layer/conductive layer, insulated cables, etc., can solve problems such as shortening the service life of cables, breakdown of cable insulation layers, power operation accidents, etc., and achieve enhanced Mechanical strength, good shielding effect, high radial force effect

Pending Publication Date: 2018-11-16
JIANGSU DONGQIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the cable is soaked in water or in a humid environment for a long time during operation, if there is no good water-blocking structure or measures, the cable will easily cause the insulation to age due to water trees, and eventually the cable insulation layer will be broken down. , greatly shorten the service life of the cable, and even cause power operation accidents

Method used

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  • Rare earth power cable
  • Rare earth power cable
  • Rare earth power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Fe: 0.30 wt%, Cu: 0.20 wt%, B: 0.01 wt%, Mg: 0.03 wt%, Si: 0.05 wt%, Zr: 0.10 wt%, Ni: 0.03 wt%, Ag: 0.01 wt%, Cr: 0.01 wt%, Mn: 0.01 wt%, Ti: 0.02 wt%, V: 0.02 wt%, Zn: 0.01 wt%, RE: 0.30 wt%, the remainder is Al and unavoidable impurities.

Embodiment 2

[0032] Fe: 0.60 wt%, Cu: 0.30 wt%, B: 0.02 wt%, Mg0.05 wt%, Si: 0.10 wt%, Zr: 0.15 wt%, Ni: 0.06 wt%, Ag: 0.02 wt%, Cr: 0.03 wt%, Mn: 0.03 wt%, Ti: 0.04 wt%, V: 0.05 wt%, Zn: 0.04 wt%, RE: 0.60 wt%, the remainder is Al and unavoidable impurities.

Embodiment 3

[0034] Fe: 0.450 wt%, Cu: 0.25 wt%, B: 0.015 wt%, Mg: 0.04 wt%, Si: 0.08 wt%, Zr: 0.12 wt%, Ni: 0.05 wt%, Ag: 0.015 wt%5, Cr : 0.02 wt%2, Mn: 0.02 wt%2, Ti: 0.03wt%, V: 0.04wt%, Zn: 0.025 wt%, RE: 0.50 wt%, and the rest are Al and unavoidable impurities.

[0035] The rare earth material components of the rare earth refractory layer 10 and the rare earth water blocking layer 11 formed by coating on the outer sheath 9 include the following examples:

[0036] Embodiment one:

[0037] Rare earth refractory material components include: fluorine rubber 8 wt%, aluminum hydroxide 5 wt%, rare earth oxide 2 wt%, glycerol 1 wt%, silicon carbide 2 wt%, lanthanum phosphate 3 wt%, gadolinium zirconate 6 wt%, the remainder is epoxy resin; the material components of the rare earth water blocking layer include: 35 wt% epoxy resin, 8 wt% tung oil, 4 wt% rare earth oxide, 5 wt% magnesium oxide, 6 wt% zinc oxide, and the remaining For nitrile rubber.

[0038] Embodiment two:

[0039] Rare ear...

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Abstract

The invention discloses a rare earth power cable, which comprises a cable core and a filling layer, wherein the cable core and the filling layer are wrapped with a wrapping tape layer, a shielding layer, an inner sheath, a metal armor layer, an outer sheath, a rare earth refractory layer and a rare earth water-blocking layer; shielding tapes are coated and lap-jointed with one another by means ofwave-shaped overlapping sections on two sides; armoring steel tapes are in lap joint with one another by means of steel tapes on two sides; rare earth aluminum alloy material of rare earth aluminum alloy conductors comprises the components of Fe, Cu, B, Mg, Si, Zr, Ni, Ag, Cr, Mn, Ti, V, Zn, RE, and the balance is AL; a rare earth refractory layer material comprises the components of fluororubber,aluminium hydroxide, rare earth oxide, glycerin, silicon carbide, lanthanum phosphate, gadolinium zirconate, and the balance is epoxy resin; and a rare earth water-blocking layer material comprises the components of epoxy resin, tung oil, rare earth oxide, magnesium oxide, zinc oxide, and the balance is nitrile butadiene rubber. The rare earth power cable has good electrical conductivity and mechanical strength, and has high temperature resistance and water blocking performance.

Description

technical field [0001] The invention relates to a power cable for transmitting electric energy, in particular to an aluminum alloy power cable with high water resistance, moisture resistance and high temperature resistance. Background technique [0002] Power cable is a cable product used to transmit and distribute high-power electric energy in the main line of the power system. It is often used in urban power grids, power station lead lines, internal power supply of industrial and mining enterprises, and underwater transmission lines. The proportion of cables in power lines is increasing. Gradually increases and determines the transmission performance of the transmission line. The basic structure of a power cable mainly includes a conductor core, an insulating layer, a shielding layer and a protective layer. The conductor core is the conductive part of the power cable, which is used to transmit electric energy and is the main part of the power cable. [0003] At present, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/04H01B7/22H01B7/28H01B7/282H01B7/29H01B7/295H01B9/00H01B9/02H01B1/02C08L63/00C08L27/12C08K13/02C08K3/22C08K3/32C08K3/24C08K5/053C08L9/02C22C21/00
CPCH01B1/023H01B7/0216H01B7/0291H01B7/04H01B7/225H01B7/2806H01B7/2813H01B7/2825H01B7/292H01B7/295H01B9/006H01B9/021C22C21/00C08L9/02C08L63/00C08L2201/02C08L2205/03C08K2003/2227C08K2003/222C08K2003/221C08K2003/2296C08K2003/321C08L27/12C08K13/02C08K3/22C08K3/32C08K3/24C08K5/053C08L91/00Y02A30/14
Inventor 王子纯崔淦泉吴荣美徐亚东唐秀芹陈彩云
Owner JIANGSU DONGQIANG
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