BS EN 61166:1993
Current
The latest, up-to-date edition.
Specification for high-voltage alternating current circuit-breakers. Guide for seismic qualification of high-voltage alternating current circuit-breakers
Hardcopy , PDF
English
10-15-1993
Cooperating organizations
National foreword
Foreword
1 Scope and object
2 Normative references
3 Definitions
4 Seismic qualification requirements
5 Severities
6 Qualification by test
6.1 Introduction
6.2 Mounting
6.3 External load
6.4 Measurement
6.5 Frequency range
6.6 Test severity
6.6.1 Parameters for sine-beat excitation
6.6.2 Parameters for time-history excitation
6.7 Testing
6.7.1 Test directions
6.7.2 Test sequence
7 Qualification by combined test and analysis
7.1 Introduction
7.2 Vibrational and functional data
7.3 Analysis
7.3.1 Acceleration time-history method of calculation
7.3.2 Modal analysis using the required response
spectrum (RRS)
7.3.3 Static coefficient analysis
8 Evaluation of the seismic qualification
8.1 Combination of stresses
8.2 Acceptance criteria of the seismic simulation
8.3 Functional evaluation of the test results
9 Documentation
9.1 Information for seismic qualification
9.2 Test report
9.3 Analysis report
Figures
Annexes
A Characterization of the equipment
ZA (normative) Other international publications
quoted in this standard with the references of
the relevant European publications
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
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