ELECTRICAL FIRE AND SHOCK PROTECTIVE APPARATUS

摘要

Electrical protective apparatus for the prevention of electrical fires as well as protection against injury to people by electric shock, including a two-conductor flexible "extension cord" having at least one conductor thereof completely surrounded by a flexible conductive sheath insulated from the main conductors and preferably covered with an outer layer of insulating material. An automatic circuit interrupting device is connected between one of the two main conductors and the "high" or ungrounded side of a source of electric power. The other conductor is connected to the grounded side of the source. The conductive sheath is also connected to the grounded side of the power source by a third conductor.