BS EN 62271-207:2012
$142.49
High-voltage switchgear and controlgear – Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV
| Published By | Publication Date | Number of Pages |
| BSI | 2012 | 26 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Seismic qualification requirements 4.1 General 4.2 Qualification levels 5 Test procedures for qualification 5.1 General Table 1 – Seismic qualification levels for switchgear assemblies –Horizontal severities |
| 9 | 5.2 Mounting 5.3 Measurements 5.4 Frequency range 5.5 Test severity 5.5.1 General |
| 10 | Figure 1 – Required response spectrum (RRS) for qualification level moderate |
| 11 | 5.5.2 Parameters for time-history excitation 5.5.3 Test directions 5.5.4 Test sequence Figure 2 – Required response spectrum (RRS) for qualification level high |
| 12 | 6 Qualification by combined test and numerical analysis 6.1 General |
| 13 | 6.2 Dynamic and functional data 6.3 Numerical analysis 6.3.1 General 6.3.2 Numerical analysis by the acceleration time-history method 6.3.3 Modal and spectrum analysis using the required response spectrum (RRS) |
| 14 | 6.3.4 Static coefficient analysis 7 Evaluation of the seismic qualification 7.1 Combination of stresses |
| 15 | 7.2 Acceptance criteria for the seismic waveform 7.3 Functional evaluation of the test results 7.4 Allowable stresses 8 Documentation 8.1 Information for seismic qualification |
| 16 | 8.2 Test report 8.3 Analysis report |
| 17 | Annex A (normative) Characterisation of the test-set |
| 18 | Figure A.1 – Monogram for the determination of equivalent damping ratio |
| 19 | Annex B (informative) Criteria for seismic adequacy of gas-insulated metal-enclosed switchgear |
| 21 | Bibliography |
