NEMA 270 : 1988
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
06-11-1997
01-12-2013
Foreword
Scope
1 Referenced standards and definitions
Referenced standards
Definitions
2 Selection of components
Test specimen - lighting fixture
Test specimen(s) fluorescent ballast - base test
Test specimen(s) fluorescent ballast(s)
Test specimen(s) fluorescent lamp(s)
Test specimen(s) fluorescent lamp(s) - base test
3 Testing facilities & equipment
Facilities
Photometric laboratory
Test chamber
General criteria
Calibration rack
Photodetector
Line voltage
Line voltage wave shape
Line voltage source impedance
Line voltage stability
Electrical instrumentation
Measurement of input power
Safety precautions
4 Testing procedures
General
Base test
Testing conditions
Calibration of lamp(s)
Measurement of calibration flux
5 Calculations
Calculation of ballast factor
Ballast factor/energy saving lamps
Lamp normalizing factor
Ballast normalizing factor
Normalized head-on flux
Comparative light output
Normalized Watts input
Comparative Watts input
6 Reporting of test results
Reporting format
Fixture description
General lamp/ballast description
Ballast description
Lamp description
Normalized Watt input
Comparative Watt input
Comparative light output "flux"
Appendix
A Sample worksheets and reporting format
A-1 Sample NEMA worksheet
A-2 Sample test 5000-1 worksheet
A-3 Sample test 5000-2 worksheet
A-4 Sample test 5000-3 worksheet
A-5 Sample test 5000-4 worksheet
A-6 Sample reporting format
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