Flame-proofed generator

摘要

At least one cover (31) is arranged near to at least one electrical device (23) that supplies a motor vehicle onboard power network. The cover is provided with a coating (32) which expands when at least one electrically-overloaded region is subjected to an unacceptably high heating, surrounding this region with foam so that it is occluded from the surrounding air. An Independent claim is included for a protective cap for a three-phase generator.