Appendix Q to Subpart B of Part 430 - Uniform Test Method for Measuring the Energy Consumption of Fluorescent Lamp Ballasts
10:3.0.1.4.18.3.13.6.27 : Appendix Q
Appendix Q to Subpart B of Part 430 - Uniform Test Method for
Measuring the Energy Consumption of Fluorescent Lamp Ballasts
Note regarding effective date: After October 14, 2020 and
prior to March 15, 2021 any representations with respect to energy
use or efficiency of fluorescent lamp ballasts must be in
accordance with the results of testing pursuant to this appendix or
the test procedures as they appeared in appendix Q to this subpart
revised as of January 1, 2020. On or after March 15, 2021, any
representations, including certifications of compliance for
ballasts subject to any energy conservation standard, made with
respect to the energy use or efficiency of fluorescent lamp
ballasts must be made in accordance with the results of testing
pursuant to this appendix.
0. Incorporation by Reference
DOE incorporated by reference ANSI C78.81-2016, ANSI C78.375A,
ANSI C78.901-2016, ANSI C82.1, ANSI 82.2, ANSI 82.3, ANSI 82.11,
ANSI C82.13, ANSI 82.77, IEC 60081, and IEC 62301, each in their
entirety in § 430.3; however, only enumerated provisions of ANSI
C78.375A, ANSI C82.2, and IEC 62301 are applicable to this
appendix, as follows:
(a) ANSI C78.375A, as follows:
(i) Section 4, Ambient conditions for temperature measurement,
as specified in section 2.4.2 of this appendix; and
(ii) Section 9, Electrical instruments, as specified in sections
2.2.1, 2.2.2, and 2.2.3 of this appendix.
(b) ANSI C82.2, as follows:
(i) Section 3, Pertinent measurements, as specified in section
2.4.1 of this appendix;
(ii) Section 4, Electrical supply characteristics - test ballast
measurement circuits, as specified in section 2.4.1 of this
appendix; and
(iii) Section 7, Test measurements circuits, as specified in
sections 2.5.6, 2.5.7, and 2.5.8 of this appendix.
(c) IEC 62301 as follows:
(i) Section 5, Measurements, as specified in sections 3.4.3 and
3.4.4 of this appendix.
1. Definitions
1.1. Average total lamp arc power means the sample mean
of the total lamp arc power of the ballast units tested.
1.2. Dimming ballast means a ballast that is designed and
marketed to vary its output and that can achieve an output less
than or equal to 50 percent of its maximum electrical output.
1.3. High frequency ballast is as defined in ANSI C82.13
(incorporated by reference; see § 430.3).
1.4. Instant-start is the starting method used in
instant-start systems as defined in ANSI C82.13, as typically
indicated on publicly available documents of a fluorescent lamp
ballast (e.g., product literature, catalogs, and packaging
labels).
1.5. Low-frequency ballast is a fluorescent lamp ballast
that operates at a supply frequency of 50 to 60 Hz and operates the
lamp at the same frequency as the supply.
1.6. Programmed-start is the starting method used in a
programmed-start system as defined in ANSI C82.13, as typically
indicated on publicly available documents of a fluorescent lamp
ballast (e.g., product literature, catalogs, and packaging
labels).
1.7. Rapid-start is the starting method used in
rapid-start type systems as defined in ANSI C82.13, as typically
indicated on publicly available documents of a fluorescent lamp
ballast (e.g., product literature, catalogs, and packaging
labels).
1.8. Reference lamp is a fluorescent lamp that meets the
operating conditions of a reference lamp as defined by ANSI
C82.13.
1.9. Residential ballast means a fluorescent lamp ballast
that meets Federal Communications Commission (FCC) consumer limits
as set forth in 47 CFR part 18 and is designed and marketed for use
only in residential applications.
1.10. RMS is the root mean square of a varying
quantity.
1.11 Sign Ballast means a ballast that has an
Underwriters Laboratories Inc. Type 2 rating and is designed and
marketed for use only in outdoor signs.
2. Active Mode Procedure for Measuring BLE at Full Light Output
2.1. Where ANSI C82.2 (incorporated by reference; see § 430.3)
references ANSI C82.1, use ANSI C82.1 (incorporated by reference;
see § 430.3) for testing low-frequency ballasts and use ANSI C82.11
(incorporated by reference; see § 430.3) for testing high-frequency
ballasts. In addition when applying ANSI C82.2, use the standards
ANSI C78.375A, ANSI C78.81-2016, ANSI C82.1, ANSI C82.11, ANSI
C82.13, ANSI C82.3, ANSI C82.77, and ANSI C78.901-2016
(incorporated by reference; see § 430.3) instead of the normative
references in ANSI 82.2. Specifications in referenced standards
that are recommended, that “shall” or “should” be met, or that are
not clearly mandatory, are mandatory. In cases where there is a
conflict between any industry standard(s) and this appendix, the
language of the test procedure in this appendix takes precedence
over the industry standard(s).
2.2. Instruments
2.2.1. All instruments must meet the specifications of section 9
of ANSI C78.375A.
2.2.2. Power Analyzer. In addition to the specifications
in section 9 of ANSI C78.375A, the power analyzer must have a
maximum 100 pF capacitance to ground and frequency response between
40 Hz and 1 MHz.
2.2.3. Current Probe. In addition to the specifications
in section 9 of ANSI C78.375A, the current probe must be
galvanically isolated and have frequency response between 40 Hz and
20 MHz.
2.3. Test Setup
2.3.1. Connect the ballast to a main power source and to the
fluorescent lamp(s) as specified in this section. Ensure the
ballast is connected to fluorescent lamp(s) according to any
manufacturer's wiring instructions on or sold with each unit
(including those provided online). To test a low-frequency ballast,
follow ANSI C82.1 but disregard section 5.3 of ANSI C82.1. To test
a high-frequency ballast, follow ANSI C82.11 but disregard sections
5.3.1 and 5.13 and Annex D of ANSI C82.11.
2.3.2. In the test setup, all wires used in the apparatus,
including any wires from the ballast to the lamps and from the
lamps to the measuring devices, must meet the following
specifications:
2.3.2.1. Use the wires provided by the ballast manufacturer and
only the minimum wire length necessary to reach both ends of each
lamp. If the wire lengths supplied with the ballast are too short
to reach both ends of each lamp, add the minimum additional wire
length necessary to reach both ends of each lamp, using wire of the
same wire gauge(s) as the wire supplied with the ballast. If no
wiring is provided with the ballast, use 18 gauge or thicker
wire.
2.3.2.2. Keep wires loose. Do not shorten or allow bundling of
any wires. Separate all wires from each other, and ground them to
prevent parasitic capacitance.
2.3.3. Test each ballast with only one fluorescent lamp type.
Select the one type of fluorescent lamp for testing as follows:
2.3.3.1. Each fluorescent lamp must meet the specifications of a
reference lamp as defined by ANSI C82.13, be seasoned at least 12
hours, and be stabilized as specified in 2.5.2.1 of this appendix.
Test each reference lamp with a reference ballast that meets the
criteria of ANSI C82.3. For low frequency ballasts that
operate:
(a) 32 W 4-foot medium bipin T8 lamps, use the following
reference lamp specifications: 30.8 W, arc wattage; 1.7 W,
approximate cathode wattage (with 3.6 V on each cathode); 32.5 W,
total wattage; 137 V, voltage; 0.265 A, current. Test the selected
reference lamp with the following reference ballast specifications:
300 V, rated input voltage; 0.265 A, reference current; 910 ohms,
impedance. Use the following cathode heat requirements for rapid
start: 3.6 V nominal, voltage; 2.5 V min, 4.4 V max, limits during
operation; 11.0 ohms ± 0.1 ohms, dummy load resistor; 3.4 V min,
4.5 V max, voltage across dummy load.
(b) 59 W 8-foot single pin T8 lamps, use the following reference
lamp specifications: 60.1 W, arc wattage; 270.3 V, voltage; 0.262
A, current. Test the selected reference lamp with the following
reference ballast specifications: 625 V, rated input voltage; 0.260
A, reference current; 1960 ohms, impedance.
(c) 32 W 2-foot U-shaped medium bipin T8 lamps, use the
following reference lamp specifications: 30.5 W, arc wattage; 1.7
W, approximate cathode wattage (with 3.6 V on each cathode); 32.2
W, total wattage; 137 V, voltage; 0.265 A, current. Test the
selected reference lamp with the following reference ballast
specifications: 300 V, rated input voltage; 0.265 A, reference
current; 910 ohms, impedance. Use the following cathode heat
requirements for rapid start: 3.6 V nominal, voltage; 2.5 V min,
4.4 V max, limits during operation; 11.0 ohms ± 0.1 ohms, dummy
load resistor; 3.4 V min, 4.5 V max, voltage across dummy load.
2.3.3.2 For any sign ballast designed and marketed to operate
both T8 and T12 lamps, use a T12 lamp as specified in Table 1 of
this appendix.
2.3.3.3. For any ballast designed and marketed to operate lamps
of multiple base types, select lamp(s) of one base type, in the
following order of decreasing preference: Medium bipin, miniature
bipin, single pin, or recessed double contact.
2.3.3.4. After selecting the base type (per section 2.3.3.3),
select the diameter of the reference lamp. Any ballast designed and
marketed to operate lamps of multiple diameters, except for any
sign ballast capable of operating both T8 and T12 lamps, must be
tested with lamps of one of those diameters, selected in the
following order of decreasing preference: T8, T5, or T12.
2.3.3.5. Connect the ballast to the maximum number of lamps
(lamp type as determined by 2.3.3.2, 2.3.3.3, and 2.3.3.4 of this
section) the ballast is designed and marketed to operate
simultaneously.
For any ballast designed and marketed to operate both 4-foot
medium bipin lamps and 2-foot U-shaped lamps, test with the maximum
number of 4-foot medium bipin lamp(s).
2.3.3.6. Test each ballast with the lamp type specified in Table
A of this section that corresponds to the lamp diameter and base
type the ballast is designed and marketed to operate.
Table 1 to Section 2.3.3.6 -
Lamp-and-Ballast Pairings and Frequency Adjustment Factors
Ballast type |
Lamp type |
Frequency
adjustment factor
(β) |
Lamp diameter and base |
Nominal lamp
wattage |
Low-
frequency |
High-
frequency |
Ballasts that
operate straight-shaped lamps (commonly referred to as 4-foot
medium bipin lamps) with medium bipin bases and a nominal overall
length of 48 inches |
T8 MBP (Data Sheet
7881-ANSI-1005-4) *
T12 MBP (Data Sheet 7881-ANSI-1006-1) * |
32
34 |
0.94
0.93 |
1.0
1.0 |
Ballasts that
operate U-shaped lamps (commonly referred to as 2-foot U-shaped
lamps) with medium bipin bases and a nominal overall length between
22 and 25 inches |
T8 MBP (Data Sheet
78901-ANSI-4027-2) *
T12 MBP ** |
32
34 |
0.94
0.93 |
1.0
1.0 |
Ballasts that
operate lamps (commonly referred to as 8-foot-high output lamps)
with recessed double contact bases and a nominal overall length of
96 inches |
T8 HO RDC (Data Sheet
7881-ANSI-1501-2) *
T12 HO RDC (Data Sheet 7881-ANSI-1017-1) * |
86
95 |
0.92
0.94 |
1.0
1.0 |
Ballasts that
operate lamps (commonly referred to as 8-foot slimline lamps) with
single pin bases and a nominal overall length of 96 inches |
T8 slimline SP (Data Sheet
7881-ANSI-1505-1) *
T12 slimline SP (Data Sheet 7881-ANSI-3006-1) * |
59
60 |
0.95
0.94 |
1.0
1.0 |
Ballasts that
operate straight-shaped lamps (commonly referred to as 4-foot
miniature bipin standard output lamps) with miniature bipin bases
and a nominal length between 45 and 48 inches |
T5 SO Mini-BP (Data Sheet
60081-IEC-6640-7) * |
28 |
0.95 |
1.0 |
Ballasts that
operate straight-shaped lamps (commonly referred to as 4-foot
miniature bipin high output lamps) with miniature bipin bases and a
nominal length between 45 and 48 inches |
T5 HO Mini-BP (Data Sheet
60081-IEC-6840-6) * |
54 |
0.95 |
1.0 |
Sign ballasts that
operate lamps (commonly referred to as 8-foot high output lamps)
with recessed double contact bases and a nominal overall length of
96 inches |
T8 HO RDC (Data Sheet
7881-ANSI-1501-2) *
T12 HO RDC (Data Sheet 7881-ANSI-1019-1) * |
86
† 110 |
0.92
0.94 |
1.0
1.0 |
2.3.4. Test Circuits
2.3.4.1. The power analyzer test setup must have exactly n + 1
channels, where n is the maximum number of lamps (lamp type as
determined by sections 2.3.3.2, 2.3.3.3, and 2.3.3.4 of this
appendix) a ballast is designed and marketed to operate. Use the
minimum number of power analyzers possible during testing.
Synchronize all power analyzers. A system may be used to
synchronize the power analyzers.
2.3.4.2. Lamp Arc Voltage. Attach leads from the power
analyzer to each fluorescent lamp according to Figure 1 of this
section for rapid- and programmed-start ballasts; Figure 2 of this
section for instant-start ballasts operating single pin (SP) lamps;
and Figure 3 of this section for instant-start ballasts operating
medium bipin (MBP), miniature bipin (mini-BP), or recessed double
contact (RDC) lamps. The programmed- and rapid-start ballast test
setup includes two 1000 ohm resistors placed in parallel with the
lamp pins to create a midpoint from which to measure lamp arc
voltage.
2.3.4.3. Lamp Arc Current. Position a current probe on
each fluorescent lamp according to Figure 1 of this section for
rapid- and programmed-start ballasts; Figure 2 of this section for
instant-start ballasts operating SP lamps; and Figure 3 of this
section for instant-start ballasts operating MBP, mini-BP, and RDC
lamps.
For the lamp arc current measurement, set the full transducer
ratio in the power analyzer to match the current probe to the power
analyzer.
Where: Iin is the current through the current transducer,
Vout is the voltage out of the transducer, Rin is the power
analyzer impedance, and Rs is the current probe output impedance.

2.4. Test
Conditions
2.4.1. Establish and maintain test conditions for testing
fluorescent lamp ballasts in accordance with sections 3 and 4 of
ANSI C82.2.
2.4.2. Room Temperature and Air Circulation. Maintain the
test area at 25 ±1 °C, with minimal air movement as defined in
section 4 of ANSI C78.375A.
2.4.3. Input Voltage. For any ballast designed and
marketed for operation at only one input voltage, test at that
specified voltage. For any ballast that is neither a residential
ballast nor a sign ballast but is designed and marketed for
operation at multiple voltages, test the ballast at 277 V ±0.1%.
For any residential ballast or sign ballast designed and marketed
for operation at multiple voltages, test the ballast at 120 V
±0.1%.
2.5. Test Method
2.5.1. Connect the ballast to the selected fluorescent lamps (as
determined in section 2.3.3 of this appendix) and to measurement
instrumentation as specified in the Test Setup in section 2.3 of
this appendix.
2.5.2. Determine stable operating conditions according to Option
1 or Option 2.
2.5.2.1. Option 1. Operate the ballast for at least 15 minutes
before determining stable operating conditions. Determine stable
operating conditions by measuring lamp arc voltage, current, and
power once per minute in accordance with the setup described in
section 2.3 of this appendix. The system is stable once the
difference between the maximum and minimum for each value of lamp
arc voltage, current, and power divided by the average value of the
measurements do not exceed one percent over a four minute moving
window. Once stable operating conditions are reached, measure each
of the parameters described in sections 2.5.3 through 2.5.9 of this
appendix.
2.5.2.2 Option 2. Determine stable operating conditions for lamp
arc voltage, current, and power according to steps 1 through 6 of
section D.2.1 in Annex D of ANSI C82.11.
2.5.3. Lamp Arc Voltage. Measure lamp arc voltage in
volts (RMS) using the setup in section 2.3.4.2.
2.5.4. Lamp Arc Current. Measure lamp arc current in amps
(RMS) using the setup in section 2.3.4.3 of this appendix.
2.5.5. Lamp Arc Power. The power analyzer must calculate
output power by using the measurements from sections 2.5.3 and
2.5.4 of this appendix.
2.5.6. Input Power. Measure the input power in watts to
the ballast in accordance with section 7 of ANSI C82.2 (disregard
references to Figure 1 and Figure 3).
2.5.7. Input Voltage. Measure the input voltage in volts
(RMS) to the ballast in accordance with section 7 of ANSI C82.2
(disregard references to Figure 1 and Figure 3).
2.5.8. Input Current. Measure the input current in amps
(RMS) to the ballast in accordance with section 7 of ANSI C82.2
(disregard references to Figure 1 and Figure 3).
2.5.9. Lamp Operating Frequency. Measure the frequency of
the waveform delivered from the ballast to any lamp used in the
test in accordance with the setup in section 2.3 of this
appendix.
2.6. Calculations
2.6.1. Calculate ballast luminous efficiency (BLE) as follows
(do not round values of total lamp arc power and input power prior
to calculation):
Where: Total Lamp Arc Power is the sum of the lamp arc
powers for all lamps operated by the ballast as measured in section
2.5.5 of this appendix, Input Power is as determined by section
2.5.6 of this appendix, and β is equal to the frequency adjustment
factor in Table 1 of this appendix.
2.6.2. Calculate Power Factor (PF) as follows (do not round
values of input power, input voltage, and input current prior to
calculation):
Where: Input Power is measured in accordance with section
2.5.6 of this appendix, Input Voltage is measured in accordance
with section 2.5.7 of this appendix, and Input Current is measured
in accordance with section 2.5.8 of this appendix. 3. Standby Mode
Procedure
3.1. The measurement of standby mode power is required to be
performed only if a manufacturer makes any representations with
respect to the standby mode power use of the fluorescent lamp
ballast. When there is a conflict, the language of the test
procedure in this appendix takes precedence over IEC 62301
(incorporated by reference; see § 430.3). Specifications in
referenced standards that are not clearly mandatory are mandatory.
Manufacturer's instructions, such as “instructions for use”
referenced in IEC 62301 mean the manufacturer's instructions that
come packaged with or appear on the unit, including on a label. It
may include an online manual if specifically referenced
(e.g., by date or version number) either on a label or in
the packaged instructions. Instructions that appear on the unit
take precedence over instructions available electronically, such as
through the internet.
3.2. Test Setup
3.2.1. Take all measurements with instruments as specified in
section 2.2 of this appendix. Fluorescent lamp ballasts that are
designed and marketed for connection to control devices must be
tested with all commercially available compatible control devices
connected in all possible configurations. For each configuration, a
separate measurement of standby power must be made in accordance
with section 3.4 of this appendix.
3.2.2. Connect each ballast to the maximum number of lamp(s) as
specified in section 2.3 (specifications in 2.3.3.1 are optional)
of this appendix. Note: ballast operation with reference lamp(s) is
not required.
3.3. Test Conditions
3.3.1. Establish and maintain test conditions in accordance with
section 2.4 of this appendix.
3.4. Test Method and Measurements
3.4.1. Turn on all of the lamps at full light output.
3.4.2. Send a signal to the ballast instructing it to have zero
light output using the appropriate ballast communication protocol
or system for the ballast being tested.
3.4.3. Stabilize the ballast prior to measurement using one of
the methods as specified in section 5 of IEC 62301.
3.4.4. Measure the standby mode energy consumption in watts
using one of the methods as specified in section 5 of IEC
62301.
[85 FR 56494, Sept. 14, 2020]