Patent · US Expired

Electrical line

US6720498B2 · kind B2 · utility

2Cited by

10References

16Claims

0Family size

Assignee

NEXANS · FR

Inventors

Ferdinand Grogl · Koblenzer Straße, DE
Uwe Marx · Postbauer-Heng, DE
Joachim Uttinger · Kalchreuth, DE
Thomas Mann · Walden, US

Key dates

Filing date	Jan 31, 2003
Grant date	Apr 13, 2004
Priority date	—
Expiry date	Jan 31, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH01B7/295
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to an electrical line (L) having at least one electrical conductor (1) enclosed by temperature-resistant insulation (2) which ensures the functionality of the line (1) in case of fire. To minimize the fire load of the line (1), the insulation (2) comprises at least one multifilament thread (3) made of glass which is wound around the conductor (1) and whose windings are contiguous so as to create a completely closed sleeve (4) for the conductor (1). A thin protective layer (5) of a halogen-free, temperature-resistant insulation material is applied all over the sleeve (4).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.