Heat detection line and multi-core cable
US11955259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2021 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Jul 21, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B17/58
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heat detection line includes a twisted pair wire composed of a pair of heat detecting wires being twisted together. Each heat detecting wire includes a conductor and an insulator covering a periphery of the conductor. The conductor is non-magnetic and composed of a copper alloy with a tensile strength of 900 MPa or more. A multi-core cable includes the heat detection line, a plurality of electric wires, and a sheath covering the heat detection line and the plurality of electric wires together. A melting point of the insulator of the heat detection line is lower than a melting point of an insulator of each of the plurality of electric wires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.