BS EN 61347-2-2:2012

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 General notes on tests
6 Classification
7 Marking
8 Protection against accidental contact with live parts
9 Terminals
10 Provisions for protective earthing
11 Moisture resistance and insulation
12 Electric strength
13 Thermal endurance test for windings of ballasts
14 Fault conditions
15 Transformer heating
16 Construction
17 Creepage distances and clearances
18 Screws, current-carrying parts and connections
19 Resistance to heat, fire and tracking
20 Resistance to corrosion
Annex A (normative) - Test to establish whether a
        conductive part is a live part which may
        cause an electric shock
Annex B (normative) - Particular requirements for
        thermally protected lamp controlgear
Annex C (normative) - Particular requirements for
        electronic lamp controlgear with means of
        protection against overheating
Annex D (normative) - Requirements for carrying out
        the heating tests of thermally protected
        lamp controlgear
Annex E (normative) - Use of constant S other than
        4500 in t[w] tests
Annex F (normative) - Draught-proof enclosure
Annex G (normative) - Explanation of the derivation
        of the values of pulse voltages
Annex H (normative) - Tests
Annex I (normative) - Particular additional requirements
        for SELV d.c. or a.c. supplied electronic
        step-down convertors for filament lamps
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

Defines particular safety requirements for electronic step-down convertors for use on d.c. supplies of up to 250 V or a.c. supplies of up to 1000 V at 50 Hz or 60 Hz and rated output voltage <= 50 V r.m.s. at a frequency deviating from the supply frequency, or 120 V ripple free d.c. between conductors and between any conductor and earth, associated with tungsten-halogen lamps as specified in IEC 60357 and other filament lamps.

IEC 61347-2-2:2011 specifies particular safety requirements for electronic step-down convertors for use on d.c. supplies of up to 250 V or a.c. supplies of up to 1 000 V, at 50 Hz or 60 Hz and with rated output voltage 50 V r.m.s. at a frequency deviating from the supply frequency, or 120 V ripple free d.c. between conductors and between any conductor and earth, associated with tungsten-halogen lamps as specified in IEC 60357 and other filament lamps. This second edition of IEC 61347-2-2 replaces the first edition (2000), Amendment 1 (2005) and Amendment 2 (2006). The major modification for this second edition is the changeover from SELV equivalent to SELV.

This publication is to be read in conjunction with IEC 61347-1:2007.