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Submersible Composite Cable And Methods

A composite cable and composite wire technology, which is applied in the direction of cable, power cable, submarine cable, etc., can solve the problems of water depth limitation and poor load-bearing capacity of submersible transmission cables, and achieve easy laying, increased working depth, and light weight Effect

Inactive Publication Date: 2012-05-30
3M INNOVATIVE PROPERTIES CO
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In addition, the depth of water in which submersible transmission cables incorporating copper conductors can be used is somewhat limited due to the generally poor load-bearing capacity of copper wire

Method used

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  • Submersible Composite Cable And Methods
  • Submersible Composite Cable And Methods
  • Submersible Composite Cable And Methods

Examples

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example

[0165] The following materials were used in the comparative examples and examples below:

[0166] NEXTEL 610, alpha alumina ceramic fiber (3M Company, St. Paul, MN);

[0167] AMC30, an aluminum matrix composite wire comprising 30% by weight NEXTEL 610 fibers, and 70% by weight aluminum (3M Company, St. Paul, MN);

[0168] AMC50, an aluminum matrix composite wire comprising 50% by weight NEXTEL 610 fibers, and 70% by weight aluminum (3M Company, St. Paul, MN);

[0169] KEVLAR 49, poly(aramid) fiber (E.I. DuPont de Nemours, Inc., Wilmington, DE).

[0170] Figure 7 The superior properties of the exemplary composite conductor wires in terms of specific strength, specific modulus, and specific (electrical) conductivity compared to copper or steel conductor wires are shown. Various properties are expressed on a per unit weight basis. Figure 7 The values ​​reported represent the specific property value of the composite conductor wire divided by the specific property value of co...

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Abstract

Embodiments of submersible composite cables include a non-composite electrically conductive core cable, a multiplicity of composite cables, including a multiplicity of composite wires, around the core cable, and an insulative sheath surrounding the composite cables. Other embodiments include an electrically conductive core cable; a multiplicity of elements selected from fluid transport, electrical power transmission, electrical signal transmission, light transmission, weight elements, buoyancy elements, filler elements, or armor elements, arranged around the core cable in at least one cylindrical layer defined about a center longitudinal axis of the core cable when viewed in a radial cross section; a multiplicity of composite wires surrounding the elements in at least one cylindrical layer about the center longitudinal axis; and an insulative sheath surrounding the composite wires. The composite wires may be metal matrix or polymer composite wires. Methods of making and using submersible composite cables are also disclosed.

Description

[0001] Cross references to related patent applications [0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 61 / 226,056 and U.S. Provisional Patent Application No. 61 / 226,151, filed July 16, 2009, the entire disclosures of which are incorporated herein by reference . technical field [0003] The present invention relates generally to diving composite cables and methods of making and using them. The invention also relates to a diving composite cable usable as an umbilical or tether. Background technique [0004] Submarine cables are used to transmit power and signals to great depths for many subsea applications including offshore oil wellheads, robotic vehicle operations, submarine power transmission and fiber optic cables. Submersible cables for underwater power transmission are known, for example, US Patent No. 4,345,112 (Sugata et al.) and US Patent Application Publication No. 2007 / 0044992 (Bremnes). Such submersible transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/14H01B1/02
CPCH01B5/102H01B7/14H01B7/045H01B7/182Y10T29/49201Y10T29/49117H01B1/02H01B3/427H01B9/006Y10T29/49195H01B3/48H01B9/003H01B9/02H01B13/00H01B13/22
Inventor 科林·麦卡洛道格拉斯·E·约翰逊迈克尔·F·格雷瑟
Owner 3M INNOVATIVE PROPERTIES CO
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