1.1 These requirements cover controllers intended for starting and stopping
centrifugal fire pumps, including automatic and non-automatic types for electric
motor or engine driven pumps in accordance with the Standard for the
Installation of Stationary Pumps for Fire Protection, NFPA 20. Types of
controllers covered include full service, limited service, high voltage and
residential. Controllers may be provided with transfer switches. Controllers may
be suitable for use as service equipment. This equipment is for use in ordinary
locations in accordance with the National Electrical Code, ANSI/NFPA 70.
1.2 Controllers for electric motor driven, centrifugal fire pumps are intended for use with squirrel cage or wound rotor motors rated 600 V or less. Controllers for squirrel cage motors may be for across-the-line or reduced voltage starting. Limited service controllers are intended for across-the-line starting of squirrel cage motors rated 30 Hp or less, 600 V or less. High voltage controllers are intended for use with squirrel cage motors rated 2.2 - 7.2 kV AC. Residential fire pump controllers are intended for use with squirrel cage motors rated 250 V or less.
1.3 An automatic transfer switch intended to be used in fire pump circuits, that is provided separate from a controller is to be investigated in accordance with the appropriate Standard for Automatic Transfer Switches, UL 1008, and NFPA 20.
1.4 A product that contains features, characteristics, components, materials,
or systems new or different from those covered by the requirements in this
standard, and that involves a risk of fire or of electric shock or injury to
persons shall be evaluated using appropriate additional component and
end-product requirements to maintain the level of safety as originally
anticipated by the intent of this standard. A product whose features,
characteristics, components, materials, or systems conflict with specific
requirements or provisions of this standard does not comply with this standard.
Revision of requirements shall be proposed and adopted in conformance with the
methods employed for development, revision, and implementation of this standard.