M00009626
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SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 1: GENERAL REQUIREMENTS AND TESTS
Canadian Standards Association
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Availability date: 10/28/2021
FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 General requirements<br>5 General notes on tests<br>6 Ratings<br>7 Classification<br>8 Marking and other information<br>9 Protection against electric shock<br>10 Change of input voltage setting<br>11 Output voltage and output current under load<br>12 No-load output voltage<br>13 Short-circuit voltage<br>14 Heating<br>15 Short circuit and overload protection<br>16 Mechanical strength<br>17 Protection against harmful ingress of dust, solid <br> objects and moisture<br>18 Insulation resistance, dielectric strength and <br> leakage current<br>19 Construction<br>20 Components<br>21 Internal wiring<br>22 Supply connection and other external flexible <br> cables or cords<br>23 Terminals for external conductors<br>24 Provisions for protective earthing<br>25 Screws and connections<br>26 Creepage distances, clearances and distances <br> through insulation<br>27 Resistance to heat, fire and tracking<br>28 Resistance to rusting <br>Annex A (normative) - Measurement of creepage <br> distances and clearances<br>Annex B (normative) - Testing a series of transformers<br>Annex C (normative) - Creepage distances (cr), <br> clearances (cl) and distances through <br> insulation (dti) Material group II <br> (400 <= CTI < 600)<br>Annex D (normative) - Creepage distances (cr), <br> clearances (cl) and distances through insulation <br> (dti) Material group I (CTI >= 600)<br>Annex E (normative) - Glow-wire test<br>Annex F (normative) - Requirements for manually <br> operated switches which are parts of <br> transformers assembly <br>Annex G (normative) - Tracking test<br>Annex H (normative) - Electronic circuits <br>Annex I (void)<br>Annex J (normative) - Measuring network for <br> touch-currents<br>Annex K (normative) - Insulated winding wires <br> for use as multiple layer insulation<br>Annex L (informative) - Routine tests (production tests) <br>Annex M (informative) - Examples to be used <br> as a guide for 19.1<br>Annex N (informative) - Examples of points of <br> application of test voltages<br>Annex O (void) <br>Annex P (informative) - Examples of points of <br> measurement of creepage distances and <br> clearances<br>Annex Q (informative) - Explanation of IP <br> numbers for degrees of protection <br>Annex R (normative) - Explanations of the <br> application of 4.1.1.2.1 of IEC 60664<br>Annex S (void) <br>Annex T (void) <br>Annex U (informative) - Optional t[w]-marking of <br> transformers<br>Annex V (informative) - Symbols to be used for <br> thermal cut-outs<br>Annex W (normative) - Coated printed circuit boards <br>Bibliography<br>Index of defined terms
Pertains to safety aspects of power transformers, power supplies, reactors and similar products such as electrical, thermal and mechanical safety.
Published | |
Document Type | Standard |
Status | Current |
Publisher | Canadian Standards Association |
ProductNote | Reconfirmed EN |
Pages | |
ISBN |