Electric wire/wire bundle for preventing permanent arcing between electrically live parts and car body, has conductive wire core insulated with an expanding material.

摘要

A wire (1) has an electrically conductive wire core (2) surrounded by an electrically insulating casing (3) that contains a uniformly distributed material (4) that expands in its dimensions as it heats up to a preset temperature. This material is a Clariant intumescent flame protection system. On reaching a minimum temperature and still retaining its non-conductive property, this material expands to close off a gas channel created by arcing.