Abstract: This invention prevents a circuit breaker from being re-set for a time sufficient to insure safe dissipation of ionized gases. Current monitors and rectifiers generate a reduced voltage direct current output which is fed into an auxiliary rectifier circuit. That direct current output is proportional to current in power conductors controlled by a circuit breaker. A holding circuit has an electrical power source derived from the power conductors and connected to a release coil for the main power contacts in the circuit breaker. A holding relay has a holding coil in the rectifier circuit, and normally closed holding contacts in the holding circuit. A time switch is connected in shunt with the holding coil. When the direct current output reaches a value corresponding to an overcurrent condition in the power conductors, it energizes the holding coil to open the holding contacts and cause the release coil to trip open the main contacts. Concurrently, the time switch activates; after a predetermined time (e.g.

Abstract: Safety apparatus for indicating a live voltage condition in an insulated electrical conductor having insulation surrounding a central conductor wire, comprises: a layer of semi-conducting tape on the outer surface of the insulation; an electrically conductive sheath consisting of a plurality of turns of wire on the outer surface of the semi-conducting tape; a layer of stress-relieving tape wrapped about each end of the semi-conducting tape and an adjacent portion of the insulation; and an outer layer of electrical insulating tape covering all the previously-described tape layers and the turns of wire which are connected to ground through a fluorescent tube. When the insulated electrical conductor is subjected to live alternating current energization at 7000 volts or more, a capacitive alternating current path is established across the insulation, between the central conductor wire and the turns of wire acting as capacitor plates, to light the fluorescent tube.