Kaolin additive in mineral insulated metal sheathed cables
US6759592B1 · kind B1 · utility
7Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2001 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Feb 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B3/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Kaolin is added to the insulation (30) in a metal sheathed, mineral-insulated cables of the type used as a power cable, heating cable, or thermocouples where high temperature and an aggressive medium may exist, and which are typically produced by drawing down the cable. The preferred insulation for the invention is MgO. The addition of kaolin decreases moisture seepage into the insulation and consequent drop in insulation resistivity. It also reduces the loss of electrical resistance as temperature increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.