The preferred method involves tracing the wire back to its origin, which is usually the circuit breaker panel or a distribution box, and removing the entire run. If the cable is accessible throughout its entire length, removing it fully eliminates any confusion for future. The practice of terminating unused electrical wires involves insulating and securing conductors that are no longer connected to a device or load, a procedure mandated by electrical safety codes to prevent fire and shock hazards. Any conductor that remains connected to a power source, even at the. I came across: Terminating unused wire in breaker box But, that is at the main panel. My primary question is: #1 How to terminate unused wire at a junction box? I was able to completely fish out the wiring for the lights and removed it entirely from the junction box, but the outlet wiring is not. This article discusses safe and compliant methods for dealing with unused live electrical wires found during renovation or repair. An exposed, energized wire creates a serious risk of fire and electrical shock and must be addressed immediately. They're not only unsightly, but they can also pose serious safety risks. However, some caution is essential because we're dealing with electricity here! In this article. Got red tagged for taping the ends of some old wires instead of using wire nuts.