Page 405 - Sustainable On-Site CHP Systems Design, Construction, and Operations

Title Scope or Definition Fine Print Note
700 These systems are intended FPN No. 3: Emergency systems are generally
Emergency to automatically supply installed in places of assembly where
Systems illumination, power, or both, artificial illumination is required for safe
to designated areas and exiting and for panic control in buildings
equipment in the event subject to occupancy by large numbers of
of failure of the normal persons, such as hotels, theaters, sports
supply, or in the event of arenas, health-care facilities, and similar
accident to elements of a institutions. Emergency systems may
system intended to supply, also provide power for such functions as
distribute, and control ventilation where essential to maintain life,
power and illumination fire detection and alarm systems, elevators,
essential for safety to fire pumps, public safety communications
human life. systems, industrial processes where current
interruption would produce serious life safety
or health hazards, and similar functions.
701 These systems are intended FPN: Legally required standby systems
Legally Required to automatically supply are typically installed to serve loads, such
Standby Systems power to selected loads as heating and refrigeration systems,
(other than those classed communication systems, ventilation and
as emergency systems) in smoke removal systems, sewage disposal,
the event of failure of the lighting systems, and industrial processes,
normal source. that, when stopped during any interruption
of the normal electricity supply, could create
hazards or hamper rescue or fire-fighting
operations.
702 These systems are intended FPN: Optional standby systems are typically
Optional Standby to supply power to public installed to provide an alternate source
or private facilities or of electric power for such facilities as
property where life safety industrial and commercial buildings, farms,
does not depend on the and residences and to serve loads such
performance of the system. as heating and refrigeration systems, data
Optional standby systems processing and communications systems,
are intended to supply and industrial processes that, when stopped
on-site generated power during any power outage, could cause
to selected loads either discomfort, serious interruption of the
automatically or manually. process, damage to the product or process,
or the like.
708.2 Power systems for facilities FPN No. 1: Critical operations power systems
Critical Operations or parts of facilities are generally installed in vital infrastructure
Power Systems that require continuous facilities that, if destroyed or incapacitated
(COPS) operation for the reasons would disrupt national security, the economy,
of public safety, emergency public health or safety; and where enhanced
management, national electrical infrastructure for continuity of
security, or business operation has been deemed necessary by
continuity. (Emphasis governmental authority.
added.)

Source: Copyright NFPA, Quincy, Massachusetts.

TABLE 23-1 Overview of NEC Chapter 7 Articles
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