SAFETY OF TRANSFORMERS, REACTORS, POWER SUPPLY UNITS AND COMBINATION THEREOF - PART 2-14: PARTICULAR REQUIREMENTS AND TESTS FOR VARIABLE TRANSFORMERS AND POWER SUPPLY UNITS INCORPORATING VARIABLE TRANSFORMERS
International Electrotechnical Committee
FOREWORD<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 <br> dust, solid objects and moisture<br>18 Insulation resistance, dielectric strength <br> and leakage current <br>19 Construction<br>20 Components<br>21 Internal wirings<br>22 Supply connection and other external <br> flexible cables or cords <br>23 Terminals for external conductors<br>24 Provision for protective earthing <br>25 Screws and connections<br>26 Creepage distances, clearances and <br> distances through insulation<br>27 Resistance to heat, fire and tracking<br>28 Resistance to rusting <br>Annexes<br>Bibliography
Pertains to the safety of variable transformers for general applications and power supply units incorporating variable transformers for general applications.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 96 |
| Supersedes |
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