Patent ID: 11871486
Assignee: NVENT SERVICES GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A self-regulating heating cable comprising:
a semi-conductive heating core;
two conductive wires embedded within and separated by the semi-conductive heating core;
a primary jacket surrounding the semi-conductive core and comprising a first low-smoke, zero halogen (LSZH) material;
a braid surrounding the primary jacket and providing a ground path; and
a final jacket surrounding the braid and comprising a second LSZH material,
the first and second LSZH materials being sufficiently flame-retardant that at least 60% of light incident upon smoke emitted by burning the self-regulating heating cable under conditions of a smoke density test, defined in International Electrotechnical Commission (IEC) standard 61034, is transmitted through the smoke.