Practice

A hospital's Type 1 essential electrical system is divided per the governing code (rules given): the life safety branch carries only the functions essential for life safety (egress lighting, exit signs, alarm and emergency communication systems); the critical branch carries task illumination, fixed equipment, and selected receptacles serving patient care — both branches must be restored automatically within 10 seconds. The equipment branch carries major mechanical loads (medical air/vacuum, HVAC, pumps) on delayed-automatic or manual connection. To which portion of the system should the corridor egress illumination and exit signs along the means of egress be connected?

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