I.S. EN 60921:2005
Current
The latest, up-to-date edition.
BALLASTS FOR TUBULAR FLUORESCENT LAMPS - PERFORMANCE REQUIREMENTS
Hardcopy , PDF
English
01-01-2005
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
FOREWORD
INTRODUCTION
1 Scope
2 Normative References
3 Terms and definitions
4 General notes on tests
5 Marking
6 Voltage at terminations of lamp or starter (if any)
6.1 For lamps operated with a starter
6.2 For lamps operated without a starter
6.3 For lamps operated without a starter (North
American practice)
6.4 Maximum (r.m.s.) voltage across starter terminals
with lamp operating
6.5 For lamps with integral means of starting
7 Pre-heating conditions
7.1 For lamps operated with (integral) starter
7.2 For lamps operated without starter
7.3 For lamps operated without starter (North American
practice)
8 Lamp power and current
8.1 For lamps operated with (integral) starter
8.2 For lamps operated without starter
9 Circuit power-factor
10 Supply current
11 Maximum current in any lead to a cathode
12 Current waveform
13 Magnetic screening
14 Impedance at audio-frequencies
Annex A (normative) Tests
A.1 General conditions for tests
A.2 Additional requirements for testing reference
ballasts
A.3 Selection of reference lamps
A.4 Measurement of open-circuit voltage
A.5 Measurements of pre-heating conditions
A.6 Measurement of lamp power and current
A.7 Measurement of maximum current in any lead to
a cathode
A.8 Measurement of current waveform
A.9 Measurement of impedance at audio-frequencies
Annex B (informative) Series operation of two fluorescent
lamps
Annex C (normative) Reference ballasts
C.1 Marking
C.2 Design characteristics
C.3 Operating characteristics
Annex D (normative) Reference lamps
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Bibliography
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