HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 203: GAS-INSULATED METAL-ENCLOSED SWITCHGEAR FOR RATED VOLTAGES ABOVE 52 KV
International Electrotechnical Committee
FOREWORD
1 General
2 Normal and special service conditions
3 Terms and definitions
4 Ratings
5 Design and construction
6 Type tests
7 Routine tests
8 Guide to the selection of switchgear and controlgear
9 Information to be given with enquiries, tenders and orders
10 Transport, storage, installation, operation and maintenance
11 Safety
12 Influence of the product on the environment
Annex A (normative) - Test procedure for dielectric test on
three-phase encapsulated GIS, range II
Annex B (normative) - Methods for testing gas-insulated
metal-enclosed switchgear under conditions of
arcing due to an internal fault
Annex C (informative) - Technical and practical considerations
of site testing
Annex D (informative) - Calculation of pressure rise due to an
internal fault
Annex E (informative) - Information to be given with enquiries,
tenders and orders
Annex F (informative) - Service continuity
Annex G (informative) - Insulation levels for GIS with rated
voltages higher than 800 kV
Annex H (informative) - List of notes concerning certain
countries
Bibliography
Defines requirements for gas-insulated, metal-enclosed switchgear in which the insulation is obtained, at least partly, by an insulating gas other than air at atmospheric pressure, for alternating current of rated voltages above 52 kV, for indoor and outdoor installation, and for service frequencies up to and including 60 Hz.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 17 |
