What is the best reason to power up a large rig in sections?

Powering up a large rig in sections is primarily advantageous because the initial power surge can overload power sources. When all equipment is powered on simultaneously, it can create a significant inrush current, which may exceed the capacity of the electrical source or circuit. This can lead to blown fuses, tripped breakers, or even damage to the equipment if the power is not managed properly.

By powering up the rig in sections, you can control the surge more effectively. Gradually increasing the load allows the electrical system to cope with the incremental power demands, thereby reducing the risk of overloading any component of the electrical system. This practice ensures a smoother startup process and helps maintain the stability of the electrical supply, protecting both the rig and the infrastructure being used.

The other choices do play roles in rigging and electrical management but do not directly address the critical issue of power surges in the same way that sectioning the power-up does. For example, while balanced load distribution is important for circuit safety and efficiency, it does not inherently prevent overloads during initial power-on conditions.