What method reduces risk to workers by maintaining equal potential at different points?

The method that reduces risk to workers by maintaining equal potential at different points is bonding. Bonding connects various metallic parts and structures of electrical systems, ensuring that they have the same electrical potential. This is crucial in preventing hazardous voltage differences that could lead to electrical shock. By keeping these points at the same potential, workers are protected from accidental electric shocks when touching different parts of the system.

In contrast, grounding refers specifically to connecting equipment to the earth, which can help to dissipate electrical surges but does not directly address potential differences between parts within a system. Insulation serves to prevent unwanted electrical currents from reaching undesirable areas but does not equalize potential. Fusing is a protective method that interrupts the circuit to prevent overcurrent but does not relate to maintaining equal potential among electrical components.