HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 307: GUIDANCE FOR THE EXTENSION OF VALIDITY OF TYPE TESTS OF AC METAL AND SOLID-INSULATION ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 52 KV
International Electrotechnical Committee
FOREWORD<br>1 General<br>2 Terms and definitions<br>3 Use of extension criteria<br>4 Application of extension criteria<br>5 Extending the validity of type tests<br>Annex A (informative) - Rationale for the<br> extension criteria<br>Annex B (informative) - Examples for the<br> extension of validity of type tests<br>Bibliography
Pertains to prefabricated metal-enclosed and solid-insulation enclosed (both hereinafter called enclosed) switchgear and controlgear assemblies for alternating current of rated voltages above 1 kV and up to and including 52 kV as specified in IEC 62271-200 and IEC 62271-201, and to other equipment included in the same enclosure with any possible mutual influence.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 17 |
