IEC 60921 : 2.1

Table of Contents

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
          ballast
      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 (Figure 9)
      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
Bibliography
Figures

Abstract

Specifies performance requirements for ballasts excluding resistance types for use on a.c. supplies up to 1000 V at 50 ot 60 Hz, associated with tubular fluorescent lamps with preheated cathodes operated with or without a starter switch and having rated wattages, dimensions and characteristics as specified in Publication 81. It complies with complete ballasts and their component parts such as resistors, transformers and capacitors.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 34
Supersedes	IEC 60082 : 2ED 91 IEC 82 : 84 AMD 1 86