431.322—Definitions concerning metal halide lamp ballasts and fixtures.
AC control signal means an alternating current (AC) signal that is supplied to the ballast using additional wiring for the purpose of controlling the ballast and putting the ballast in standby mode.
Active mode means the condition in which an energy-using product:
Ballast means a device used with an electric discharge lamp to obtain necessary circuit conditions (voltage, current, and waveform) for starting and operating.
Ballast efficiency means, in the case of a high intensity discharge fixture, the efficiency of a lamp and ballast combination, expressed as a percentage, and calculated in accordance with the following formula: Efficiency = Pout /Pin where:
(3)
The lamp, and the capacitor when the capacitor is provided, shall constitute a nominal system in accordance with the ANSI C78.43, (incorporated by reference; see § 431.323 );
(4)
For ballasts with a frequency of 60 Hz, Pin and Pout shall be measured after lamps have been stabilized according to section 4.4 of ANSI C82.6 (incorporated by reference; see § 431.323) using a wattmeter with accuracy specified in section 4.5 of ANSI C82.6; and
(5)
For ballasts with a frequency greater than 60 Hz, Pin and Pout shall have a basic accuracy of ±0.5 percent at the higher of either 3 times the output operating frequency of the ballast or 2.4 kHz.
Basic model means, with respect to metal halide lamp ballasts, all units of a given type of metal halide lamp ballast (or class thereof) that:
(3)
Have no differing electrical, physical, or functional characteristics that affect energy consumption.
DC control signal means a direct current (DC) signal that is supplied to the ballast using additional wiring for the purpose of controlling the ballast and putting the ballast in standby mode.
Electronic ballast means a device that uses semiconductors as the primary means to control lamp starting and operation.
Metal halide ballast means a ballast used to start and operate metal halide lamps.
Metal halide lamp means a high intensity discharge lamp in which the major portion of the light is produced by radiation of metal halides and their products of dissociation, possibly in combination with metallic vapors.
Metal halide lamp fixture means a light fixture for general lighting application designed to be operated with a metal halide lamp and a ballast for a metal halide lamp.
Off mode means the condition in which an energy-using product:
PLC control signal means a power line carrier (PLC) signal that is supplied to the ballast using the input ballast wiring for the purpose of controlling the ballast and putting the ballast in standby mode.
Probe-start metal halide ballast means a ballast that starts a probe-start metal halide lamp that contains a third starting electrode (probe) in the arc tube, and does not generally contain an igniter but instead starts lamps with high ballast open circuit voltage.
Pulse-start metal halide ballast means an electronic or electromagnetic ballast that starts a pulse-start metal halide lamp with high voltage pulses, where lamps shall be started by the ballast first providing a high voltage pulse for ionization of the gas to produce a glow discharge and then power to sustain the discharge through the glow-to-arc transition.
Standby mode means the condition in which an energy-using product:
(i)
To facilitate the activation or deactivation of other functions (including active mode) by remote switch (including remote control), internal sensor, or timer;
(ii)
Continuous functions, including information or status displays (including clocks) or sensor-based functions.
Wireless control signal means a wireless signal that is radiated to and received by the ballast for the purpose of controlling the ballast and putting the ballast in standby mode.