A system or circuit conductor that is intentionally grounded defines which of the following?
a. ?Grounded conductor
b. ?Grounding electrode conductor
c. ?Main bonding jumper
d. ?System bonding jumper
The Correct Answer and Explanation is :
The correct answer is a. Grounded conductor.
Explanation:
In electrical systems, a grounded conductor refers to a system or circuit conductor that is intentionally grounded for the purpose of providing a path for the return of current to the ground. This conductor is typically the neutral wire in a system, which is connected to the ground at the main service panel or distribution board. Grounding a conductor is an essential part of ensuring the safety of electrical installations, as it provides a controlled path for fault currents to flow into the earth, minimizing the risk of electrical shock, fire, or equipment damage.
Key components of grounding:
- Neutral Conductor: The grounded conductor is often the neutral wire, which completes the electrical circuit by providing a return path to the source.
- Purpose of Grounding: The primary reason for grounding a conductor is to create a safe pathway for electricity in case of faults or irregularities, such as a short circuit or a ground fault.
- Safety: Grounding helps prevent electrical shocks, reduces the risk of fires, and protects both people and equipment from electric hazards. Without proper grounding, fault currents would have no safe path to follow, which could lead to dangerous conditions.
The other options mentioned:
- b. Grounding electrode conductor: This refers to the conductor that connects the electrical system to the grounding electrode (e.g., a ground rod or metal water pipe).
- c. Main bonding jumper: This is a conductor that connects the neutral and ground bus bars in the service panel, allowing the system to bond the neutral to the ground.
- d. System bonding jumper: This is similar to the main bonding jumper but is often used to connect the system’s neutral to the grounding electrode at locations other than the main service panel.
The grounded conductor is intentionally grounded to ensure electrical safety in the system.
Let me generate an image to visually explain this.
Here is the illustration of an electrical system with the grounded conductor, showing how the neutral wire is connected to the ground. This visual should help clarify the concept of grounding in electrical systems and its safety function. Let me know if you’d like further explanation or details!
