Final answer:
A grounded conductor is connected to the earth to fix it at zero volts. In service equipment, parallel conductors in two or more raceways or cables must be grounded for safety and proper functioning. In power transmission lines, grounding parallel conductors helps maintain a reference point and prevent issues.
Step-by-step explanation:
In electrical engineering, a grounded conductor refers to a conductor that is connected to the earth using a good conductor, thereby fixing it at zero volts. In the context of service equipment, if parallel conductors are used in two or more raceways or cables, they must all be grounded. This is important for safety reasons and to ensure proper functioning of the electrical system.
For example, in a power transmission line, if multiple parallel conductors are used for carrying current, they need to be grounded to maintain a reference point and prevent potential issues like voltage imbalances or electrical shock hazards.
Keywords: grounded conductor, parallel conductors, raceways, cables, electrical engineering, power transmission line