To where do the Bank-in-Service caps apply?

The Bank-in-Service caps specifically apply to the control handles of closed bank circuit breakers (CBs). This is because these caps are designed to protect both equipment and personnel during operations involving the switching of electrical circuits. The closed bank circuit breakers are critical components in managing the flow of electricity within a distribution network, and the caps ensure that these breakers remain safely handled and operated.

Applying these caps to the control handles helps prevent unauthorized or accidental operation, thereby enhancing safety and ensuring the reliability of the system. Moreover, it reflects best practices in maintenance and operations, especially in environments where high voltages and significant currents are present. The emphasis is on ensuring equipment is only engaged or manipulated in a controlled manner, which is crucial in power distribution systems.