IEEE 1427-2006
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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IEEE Guide for Recommended Electrical Clearances and Insulation Levels in Air Insulated Electrical Power Substations
26-04-2021
English
04-05-2007
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1 Overview
1.1 Scope
1.2 Purpose
2 Normative references
3 Definitions
4 Criteria
4.1 Safety codes and regulations
4.2 Basic lightning impulse insulation level criteria
4.3 Radio interference voltage and corona criteria
4.4 Operating history
4.5 Economic aspects
4.6 Community acceptance
5 Substation insulation coordination
5.1 Protective margins and arrester maximum continuous
operating voltage
5.2 Selection of basic lightning impulse insulation level
and basic switch impulse insulation level
5.3 Selection of electrical clearances
6 Electrical operating/design clearances
6.1 General discussions
6.2 Historical background
6.3 Clearances based on lightning impulse conditions
6.4 Clearances based on switching surge conditions
7 Electric maintenance/safety clearances
8 Substation voltage uprating and compact design
8.1 BIL/System voltage ratio concept
8.2 Other considerations
Annex A (informative) Bibliography
Annex B (informative) Example calculations
This guide, covering three-phase ac systems from 1 kV to 800 kV, provides recommended electrical operating and safety clearances and insulation levels in air-insulated electric supply substations; addresses insulation coordination procedures; provides design procedures for the selection and coordination of the insulation levels within the station as they relate to substation clearances; and addresses how reduced clearances in high-voltage ac substations will allow for compact bus arrangements and substation voltage uprating applications.
| Committee |
Substations
|
| DevelopmentNote |
Supersedes IEEE DRAFT 1427. (10/2007)
|
| DocumentType |
Standard
|
| ISBN |
978-0-7381-5311-7
|
| Pages |
50
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| IEEE 1268-2005 | IEEE Guide for Safety in the Installation of Mobile Substation Equipment |
| IEEE C2-2023 | 2023 National Electrical Safety Code(R) (NESC(R)) |
| IEEE 1268-2016 | IEEE Guide for Safety in the Installation of Mobile Substation Equipment |
| IEEE 1264-2015 | IEEE Guide for Animal Deterrents for Electric Power Supply Substations |
| IEEE 1127-2013 REDLINE | IEEE Guide for the Design, Construction, and Operation of Electric Power Substations for Community Acceptance and Environmental Compatibility |
| IEEE 1313.1-1996 | IEEE Standard for Insulation Coordination - Definitions, Principles and Rules |
| IEEE C2-2002 | National Electrical Safety Code 2002 Edition |
| IEEE 998-2012 | IEEE Guide for Direct Lightning Stroke Shielding of Substations |
| IEEE 4-2013 | IEEE Standard for High-Voltage Testing Techniques |
| ANSI C84.1 : 2016 | ELECTRIC POWER SYSTEMS AND EQUIPMENT - VOLTAGE RATINGS (60 HERTZ) |
| IEEE 1313.2-1999 | IEEE Guide for the Application of Insulation Coordination |
| IEEE 1264-2015 | IEEE Guide for Animal Deterrents for Electric Power Supply Substations |
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