When a separate building is supplied by a separately derived system, how must it be installed if overcurrent protection is not provided for the supply conductors?

When a separate building is supplied by a separately derived system and overcurrent protection is not provided for the supply conductors, it is essential to ensure that the system is grounded and bonded. Grounding provides a path for fault currents to return to ground, reducing the risk of electric shock and fire hazards. Bonding connects different parts of the electrical system to maintain the same electrical potential, which is crucial for safety.

In an installation where overcurrent protection is absent, the risk of potential electrical faults increases, necessitating effective grounding and bonding to protect equipment, personnel, and the entire electrical system. Grounding and bonding work together to mitigate the effects of electrical faults and ensure that safety devices can operate correctly. This approach is vital in maintaining the safety standards set forth by electrical codes and regulations. The grounding provides a means to dissipate excess electrical energy safely, while bonding ensures that all conductive parts are at the same potential, preventing dangerous voltage differences that could lead to electric shock or damage.