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Electrical cable resistant to partial discharges
US9362019B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9362019-B2 |
| Application number | US-201414177455-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 11, 2014 |
| Priority date | Feb 12, 2013 |
| Publication date | Jun 7, 2016 |
| Grant date | Jun 7, 2016 |
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- Title
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Abstract
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An electrical cable having an elongate electrically conductive element ( 2 ) and at least one electrically insulating fluoropolymer layer ( 4 ) surrounding the electrically conductive element ( 2 ). The electrical cable is exempt from polyimide-containing layer between the electrically conductive element and the electrically insulating fluoropolymer layer.
First claim
Opening claim text (preview).
The invention claimed is: 1. Electrical cable comprising: an elongate electrically conductive element; and at least one electrically insulating fluoropolymer layer, surrounding said electrically conductive element, wherein the electrical cable is exempt from polyimide-containing layer between said electrically conductive element and said electrically insulating fluoropolymer layer and wherein said electrical cable does not comprise a semiconductor polymer layer, and wherein the total thickness of all the electrically insulating fluoropolymer layers is at least 0.40 mm. 2. Electrical cable according to claim 1 , wherein the electrical cable is exempt from polyimide-containing layers. 3. Electrical cable according to claim 1 , wherein the electrically insulating fluoropolymer layer is an extruded layer. 4. Electrical cable according to claim 1 , wherein the electrically insulating fluoropolymer layer comprises polytetrafluoroethylene (PTFE); fluorinated ethylene-propylene copolymers (FEP); perfluoroalkoxy copolymers (PFA); perfluoromethoxy copolymers (MFA); and ethylene-tetrafluoroethylene (ETFE). 5. Electrical cable according to claim 1 , wherein the electrically insulating fluoropolymer layer is a non-crosslinked. 6. Electrical cable according to claim 1 , wherein the electrically insulating fluoropolymer layer makes direct physical contact with the electrically conductive element. 7. Electrical cable comprising: an elongate electrically conductive element; and at least one electrically insulating fluoropolymer layer, surrounding said electrically conductive element, and one or more semiconductor polymer layers wherein the electrical cable is exempt from polyimide-containing layer between said electrically conductive element and said electrically insulating fluoropolymer layer, and wherein the total thickness of all the electrically insulating fluoropolymer layers is at least 0.10 mm. 8. Electrical cable according to claim 7 , wherein the total thickness of all the electrically insulating layers is at most 0.70 mm. 9. Electrical cable according to claim 7 , wherein the one or more semiconductor polymer layers comprise at least one fluoropolymer. 10. Electrical cable according to claim 9 , wherein the fluoropolymer is selected from polytetrafluoroethylene (PTFE); fluorinated ethylene-propylene copolymers (FEP); perfluoroalkoxy copolymers (PFA); perfluoromethoxy copolymers (MFA); and ethylene-tetrafluoroethylene (ETFE). 11. Electrical cable according to claim 7 , wherein said electrical cable comprises a semiconductor polymer layer surrounding the electrically insulating fluoropolymer layer. 12. Electrical cable according to claim 7 , wherein said electrical cable comprises: a first semiconductor polymer layer surrounding the elongate electrically conductive element, the electrically insulating fluoropolymer layer surrounding said first semiconductor polymer layer; and a second semiconductor polymer layer surrounding the electrically insulating fluoropolymer layer. 13. Electrical cable according to claim 7 , wherein the electrical cable is exempt from polyimide-containing layers. 14. Electrical cable according to claim 7 , wherein the electrically insulating fluoropolymer layer is an extruded layer. 15. Electrical cable according to claim 7 , wherein the electrically insulating fluoropolymer layer comprises polytetrafluoroethylene (PTFE); fluorinated ethylene-propylene copolymers (FEP); perfluoroalkoxy copolymers (PFA); perfluoromethoxy copolymers (MFA); and ethylene-tetrafluoroethylene (ETFE). 16. Electrical cable according to claim 7 , wherein the electrically insulating fluoropolymer layer is a non-crosslinked layer.
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Frequently asked questions
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- What does patent US9362019B2 cover?
- An electrical cable having an elongate electrically conductive element ( 2 ) and at least one electrically insulating fluoropolymer layer ( 4 ) surrounding the electrically conductive element ( 2 ). The electrical cable is exempt from polyimide-containing layer between the electrically conductive element and the electrically insulating fluoropolymer layer.
- Who is the assignee on this patent?
- Nexans
- What technology area does this patent fall under?
- Primary CPC classification H01B3/445. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 07 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).