SWITCHES FOR HOUSEHOLD AND SIMILAR FIXED ELECTRICAL INSTALLATIONS - PART 2-4: PARTICULAR REQUIREMENTS - ISOLATING SWITCHES
International Electrotechnical Committee
FOREWORD<br>1 Scope<br>2 Normative references<br>3 Definitions <br>4 General requirements<br>5 General notes on tests<br>6 Ratings<br>7 Classification<br>8 Marking <br>9 Checking of dimensions<br>10 Protection against electric shock <br>11 Provision for earthing<br>12 Terminals<br>13 Constructional requirements<br>14 Mechanism<br>15 Resistance to ageing, protection provided by enclosures <br> of switches and resistance to humidity<br>16 Insulation resistance and electric strength <br>17 Temperature rise <br>18 Making and breaking capacity <br>19 Normal operation<br>20 Mechanical strength<br>21 Resistance to heat<br>22 Screws, current-carrying parts and connections<br>23 Creepage distances, clearances and distances through <br> sealing compound <br>24 Resistance of insulating material to abnormal heat, <br> to fire and to tracking<br>25 Resistance to rusting<br>26 EMC requirements<br>Annex A (normative) - Survey of specimens needed for tests<br>Annex B (normative) - Additional requirements for switches having <br> facilities for the outlet and retention of <br> flexible cables<br>Annex AA (informative) - Determination of short-circuit power factor <br>Annex BB (informative) - SCPDs for short-circuit tests<br>Bibliography
Applies to manually operated general purpose isolating switches with a rated voltage not exceeding 440 V and a rated current not exceeding 125 A, intended for household and similar fixed electrical installations, either indoors or outdoors.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 23 |
