What are the specific electrical requirements for fire pump installations per NFPA 20?

Fire pump electrical requirements include: dedicated service or feeder separate from building service, overcurrent protection that allows motor to run during locked rotor condition (typically 300% FLC for standard breakers), fire pump controller with approved listing, disconnect within sight of controller, minimum 1% voltage drop (very stringent), emergency power connection if facility has generator, specific conductor sizing (125% FLC minimum), and periodic testing requirements. Phase reversal protection and backup power transfer sequencing are critical. No overcurrent device may prevent fire pump from running.