What charge does a URD cable hold after being cut?

A URD (Underground Residential Distribution) cable, when cut, can retain a capacitance charge. This occurs because the cable acts somewhat like a capacitor, able to store electrical energy until it is safely discharged. Capacitance means that the cable can maintain an electrical potential across its length, and this stored charge can be hazardous if not properly managed.

When a URD cable is cut, it does not immediately discharge to ground nor does it hold a sustained current charge as with live wiring. Instead, the capacitance creates a temporary state where voltage can still be present, which can be dangerous for workers who may not expect any electrical potential. This phenomenon is particularly relevant in training and safety protocols for linemen who must approach or handle these cables.

Understanding the nature of capacitive charge retention in URD cables is vital for ensuring safety during repairs or inspections, reinforcing the importance of testing and proper safety gear when dealing with potentially charged components.