Table of Contents

1 Overview
  1.1 General
  1.2 Scope
  1.3 Purpose
  1.4 How to use this recommended practice
  1.5 Acceptance of previously qualified electrical equipment
  1.6 Earthquakes and substations
  1.7 Design and construction
  1.8 The equipment at risk
  1.9 Mechanical loads
2 Normative references
3 Definitions, acronyms, and abbreviations
  3.1 Definitions
  3.2 Abbreviations and acronyms
4 Instructions
  4.1 General
  4.2 Specifying this recommended practice in user's
       specifications
  4.3 Standardization of criteria
  4.4 Selection of qualification level
  4.5 Witnessing of shake-table testing
  4.6 Optional qualification methods
  4.7 Qualifying equipment by group
  4.8 Inherently acceptable equipment
  4.9 Shake-table facilities
  4.10 Equipment too large to be tested in its in-service
       configuration
  4.11 Report templates
5 Installation considerations
  5.1 General
  5.2 Equipment assembly
  5.3 Site response characteristics
  5.4 Soil-structure interaction
  5.5 Support structures
  5.6 Base isolation
  5.7 Suspended equipment
  5.8 Anchorage
  5.9 Conductor induced loading
  5.10 Short-circuit loads
  5.11 Wind and ice loads
6 Qualification methods: an overview
  6.1 General
  6.2 Analysis methods
  6.3 Testing methods
  6.4 Special test cases
  6.5 Qualification method for specific equipment
  6.6 Functionality of equipment
  6.7 Qualification by seismic experience data
  6.8 Response spectra
  6.9 Damping
7 Design consideration
  7.1 Structural supports, excluding foundations
  7.2 Foundation analysis
  7.3 Station service
  7.4 Emergency power systems
  7.5 Telecommunication equipment
8 Seismic performance criteria for electrical substation equipment
  8.1 Introduction
  8.2 Objective
  8.3 Seismic qualification levels
  8.4 Projected performance
  8.5 Seismic qualification
  8.6 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 switches
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) Experience-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

Abstract

Presents recommendations for the seismic design of substation buildings, structures, and equipment.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT 693 : D9 2004