What are the two main principles when grounding a line?

The focus on bonding and grounding highlights the fundamental principles necessary for electrical safety and system reliability. Bonding refers to the practice of connecting various conductive parts together to ensure that they are at the same electrical potential, which helps to eliminate voltage differences that could lead to dangerous electrical shocks. Grounding, on the other hand, involves connecting electrical systems to the earth, which provides a safe path for fault currents and reduces the risk of electric shock or fire in the event of a fault.

By applying these two principles, electrical systems can effectively manage electrical faults, ensuring safety for both equipment and personnel. Proper bonding and grounding practices are essential in any electrical installation, as they help prevent electrical shocks, protect equipment from surges, and maintain operational integrity. Other options such as isolation and safety emphasize different aspects of electrical work but do not encapsulate the core principles that directly relate to grounding a line.