IEEE DRAFT 693 : D9 2004
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SEISMIC DESIGN OF SUBSTATIONS
17-10-2023
12-01-2013
1 Overview
1.1 Scope
1.2 Purpose
1.3 How to use this recommended practice
1.4 Acceptance of previously qualified electrical equipment
1.5 Earthquakes and substations
1.6 Design and construction
1.7 The equipment at risk
1.8 Mechanical loads
2 References
3 Definitions
4 Abbreviations and acronyms
5 Instructions
5.1 General
5.2 Specifying this recommended practice in user's specifications
5.3 Standardization of criteria
5.4 Selection of qualification level
5.5 Witnessing of shake-table testing
5.6 Optional qualification methods
5.7 Qualifying equipment by group
5.8 Inherently acceptable equipment
5.9 Shake-table facilities
5.10 Equipment too large to be tested in their in-service
configuration
5.11 Report templates
5.12 Web site
6 Installation considerations
6.1 General
6.2 Equipment assembly
6.3 Site response characteristic
6.4 Soil-structure interaction
6.5 Support structures
6.6 Base isolation
6.7 Suspended equipment
6.8 Anchorage
6.9 Conductor induced loading
6.10 Short Circuit Loads
6.11 Wind and Ice Loads
7 Qualification methods: An overview
7.1 General
7.2 Analysis methods
7.3 Testing methods
7.4 Special Test cases
7.5 Qualification methods for specific equipment
7.6 Functionality of equipment
7.7 Qualification by seismic experience data
7.8 Response Spectra
7.9 Damping
8 Design considerations
8.1 Structural Supports, excluding foundations
8.2 Foundation analysis
8.3 Station service
8.4 Emergency power systems
8.5 Telecommunication equipment
9 Seismic performance criteria for electrical substation equipment
9.1 Introduction
9.2 Objective
9.3 Seismic qualification levels
9.4 Projected performance
9.5 Seismic qualification
9.6 Selecting the seismic level for seismic qualification
Annex A (normative) Standard clauses
Annex B (normative) Equipment, general
Annex C (normative) Circuit breakers
Annex D (normative) Transformers and liquid filled reactors
Annex E (normative) Disconnect and grounding switches
Annex F (normative) Instrument transformers
Annex G (normative) Air core reactors
Annex H (normative) Circuit switchers
Annex I (normative) Suspended equipment
Annex J (normative) Station batteries and battery racks
Annex K (normative) Surge arresters
Annex L (normative) Substation electronic devices, distribution
panels and switchboards, and solid-state rectifiers
Annex M (normative) Metalclad switchgear
Annex N (normative) Cable terminators (potheads)
Annex O (normative) Capacitors, series and shunt compensation
Annex P (normative) Gas-insulated switchgear
Annex Q (normative) Experienced based qualification procedures
for low-voltage substation equipment
Annex R (informative) Composite and porcelain insulators
Annex S (normative) Analysis report template
Annex T (normative) Test report template
Annex U (informative) Specifications
Annex V (informative) Bibliography
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