06-03-2014 дата публикации
Номер: US20140060884A1
Принадлежит:
Herein described is a cable from transmitting electricity, which is particularly useful for subsea applications. A method of manufacturing the cable and a method of transmitting electricity with the cable is also described. 1. A cable comprising one or more cores , the or each core comprising:a conductor;an insulating layer; anda water-blocking layer,wherein the conductor, the insulating layer and the water-blocking layer each extend along the longitudinal axis of the core,wherein the insulating layer is axially external to the conductor, and the water-blocking layer is axially external to the insulating layer, andwherein the water-blocking layer comprises a copper alloy,wherein the alloy comprises copper and nickel; copper and beryllium; copper and zinc; or copper, zinc and aluminium.2. The cable according to claim 1 , wherein the alloy comprises 6% to 20% (w/w) nickel claim 1 , and 80% to 94% (w/w) copper; preferably 7% to 15% (w/w) nickel claim 1 , and 85% to 93% (w/w) copper; more preferably 8% to 12% (w/w) nickel claim 1 , and 88% to 92% (w/w) copper; or most preferably 9 to 11% (w/w) nickel claim 1 , and 89% to 91% (w/w) copper.3. The cable according to claim 1 , wherein the alloy comprises 8% to 12% (w/w) nickel claim 1 , 0.5% to 2.5% (w/w) iron claim 1 , 0.5% to 1.5% (w/w) manganese claim 1 , and 84% to 91% (w/w) copper; preferably 9% to 11% (w/w) nickel claim 1 , 1% to 1.8% (w/w) iron claim 1 , 0.8% to 1.2% (w/w) manganese claim 1 , and 86% to 89.2% (w/w) copper; or most preferably wherein the alloy is copper alloy C70600.4. The cable according to claim 1 , wherein the alloy comprises 20% to 40% (w/w) nickel claim 1 , and 60% to 80% (w/w) copper; preferably 25% to 35% (w/w) nickel claim 1 , and 65% to 75% (w/w) copper.5. The cable according to claim 1 , wherein the alloy comprises 25% to 35% (w/w) nickel claim 1 , 0.1% to 2% (w/w) iron claim 1 , 0.5% to 1.5% (w/w) manganese claim 1 , and 61.5% to 74.4% (w/w) copper; preferably 29% to 33% (w/w) nickel claim ...
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