# US 5,612,510 A · High-voltage automobile and appliance cable > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,612,510 A - Document ID: US5612510A - Status: Granted - Kind: A - Application number: 08/320,721 - Filed: 1994-10-11 - Granted: 1997-03-18 - Earliest claimed: 1994-10-11 - Assignees: Champlain Cable Corporation - Inventors: Nelson Hildreth - Web page: https://patentgrep.com/patent/US5612510A ## CPC - H01B 9/027: {composed of semi-conducting layers} - Y10S 174/27: including a semiconductive layer - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract The present invention features a high-voltage, high-temperature cable article for use with electric motors, coils, transformers, generators and power supplies. The cable article has a conductive core member overlaid with an intermediate, semiconductive layer and an outer, insulative jacket layer. The intermediate, semiconductive layer can be a carbon-impregnated polymer such as a carbon-impregnated polyethylene; a carbon-impregnated, ethylene-propylene-diene terpolymer (EPDM); semiconductive nylon tape; semiconductive PTFE (polytetrafluoroethylene) tape; semiconductive fabric tape; or a semiconductive extruded fluorocarbon. The temperature rating of the cable article is at least approximately 150.degree. C.; the voltage rating can be in a range of approximately between 1,000 to 15,000 volts. The wall thickness of the semiconductive layer can range from approximately 2 to 20 mils. The outer, insulative jacket layer can be a cross-linked polyolefin, an elastomeric or a thermoplastic elastomer material. The conductive core can be solid or stranded wire. ## Claims ### Claim 1 A cable article having a high voltage rating of approximately 7,500 volts and at an operative temperature of at least approximately 150.degree. C., comprising: a conductive core member; an intermediate, semiconductive layer overlaying said conductive core member, said semiconductive layer comprising a carbon-impregnated nylon tape having a wall thickness in the approximate range of between 2 and 20 mils; and an outer, insulative jacket layer overlaying said intermediate, semiconductive layer comprising a cross-linked polyolefin. ### Claim 2 (depends on 1) The cable article in accordance with claim 1, comprising a voltage rating in a range of approximately between 1,000 to 15,000 volts. ### Claim 3 (depends on 1) The cable article in accordance with claim 1, wherein said outer, insulative jacket layer comprises a polyolefin rubber, such as EPDM. ### Claim 4 (depends on 1) The cable article in accordance with claim 1, wherein said outer, insulative jacket layer comprises silicon rubber. ### Claim 5 (depends on 1) The cable article in accordance with claim 1, wherein said outer, insulative jacket layer comprises a thermoplastic elastomer material. ### Claim 6 (depends on 1) The cable article in accordance with claim 1, wherein said conductive core member comprises stranded wire. ### Claim 7 (depends on 1) The cable article in accordance with claim 1, wherein said conductive core member comprises a solid conductor. ### Claim 8 A cable article having a high voltage rating in an approximate range of 1,000 to 15,000 volts and at an operative temperature of at least approximately 150.degree. C., comprising: a conductive core member; an intermediate, semiconductive layer overlaying said conductive core member and having a wall thickness in an approximate range of 2 to 20 mils, said semiconductive layer comprising a carbon-impregnated nylon tape; and an outer, insulative jacket layer overlaying said intermediate, semiconductive layer comprising a cross-linked polyolefin. ### Claim 9 (depends on 8) The cable article in accordance with claim 8, wherein said outer, insulative jacket layer comprises a polyolefin elastomer, such as EPDM. ### Claim 10 (depends on 8) The cable article in accordance with claim 8, wherein said outer, insulative jacket layer comprises silicon rubber. ### Claim 11 (depends on 8) The cable article in accordance with claim 8, wherein said outer, insulative jacket layer comprises a thermoplastic elastomer material. ### Claim 12 (depends on 8) The cable article in accordance with claim 8, wherein said outer, insulative jacket layer comprises a rubber material. ### Claim 13 (depends on 8) The cable article in accordance with claim 8, wherein said conductive core member comprises stranded wire. ### Claim 14 (depends on 8) The cable article in accordance with claim 8, wherein said conductive core member comprises a solid conductor. ### Claim 15 A cable article having a high voltage rating in an approximate range of 1,000 to 15,000 volts and at an operative temperature of at least approximately 150.degree. C., comprising: a conductive core member; an intermediate, semiconductive layer overlaying said conductive core member and having a wall thickness in an approximate range of 2 to 20 mils, said semiconductive layer comprising a carbon-impregnated nylon polymer; and an outer, insulative jacket layer overlaying said intermediate, semiconductive layer comprising a cross-linked polyolefin, and whereby said cable article meets UL standards 1581 and 814. ### Claim 16 A cable article having a high voltage rating in an approximate range of 1,000 to 15,000 volts and at an operative temperature of at least approximately 150.degree. C., comprising: a conductive core member; an intermediate, semiconductive layer overlaying said conductive core member and having a wall thickness in an approximate range of 2 to 20 mils, said semiconductive layer comprising semiconductive nylon tape; and an outer, insulative jacket layer overlaying said intermediate, semiconductive layer. ### Claim 17 A cable article having a high voltage rating in an approximate range of 1,000 to 15,000 volts and at an operative temperature of at least approximately 150.degree. C., comprising: a conductive core member; an intermediate, semiconductive layer overlaying said conductive core member comprising a carbon-impregnated nylon tape; and an outer, insulative jacket layer comprising a cross-linked polyolefin with a wall thickness of less than 0.1 inch overlaying said intermediate, semiconductive layer. ### Claim 18 (depends on 17) The cable article in accordance with claim 17, wherein said outer, insulative jacket layer comprises a polyolefin rubber, such as EPDM. ### Claim 19 (depends on 17) The cable article in accordance with claim 17, wherein said outer, insulative jacket layer comprises silicon rubber. ### Claim 20 (depends on 17) The cable article in accordance with claim 17, wherein said outer, insulative jacket layer comprises a thermoplastic elastomer material.