- (a) General. A branch circuit that supplies equipment vital to the propulsion, control, or safety of the vessel must not supply any other equipment.
(b) Passenger vessels.
- (1) Each passenger vessel with firescreen bulkheads that form main fire zones must have distribution systems arranged so that fire in a main fire zone does not interfere with essential services in another main fire zone.
- (2) Main and emergency feeders passing through a main fire zone must be separated vertically and horizontally as much as practicable.