GB/T 311.1-2012
Insulation co-ordination.Part 1:Definitions,principles and rules

Standard No.

GB/T 311.1-2012

Language

Chinese

Release Date

2012

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Lastest

GB/T 311.1-2012

Replace

GB 311.1-1997

Scope

This part specifies the selection principles of the rated withstand voltage of the phase-to-ground insulation, phase-to-phase insulation and longitudinal insulation of the high-voltage power transmission and transformation equipment and facilities in the three-phase AC system, specifies the standard rated withstand voltage of these equipment, and gives The series with standard rated withstand voltage should be selected from this series in principle. This section applies to three-phase AC systems with a nominal voltage above 1kV. The selected rated withstand voltage should be related to the highest voltage of the equipment. This association is for insulation coordination purposes only. This section does not include requirements for the safety of personnel. The principles of this section also apply to the insulation coordination of transmission lines, but the withstand voltage value may be different from the standard rated withstand voltage specified in this section. When formulating each equipment standard, the rated withstand voltage and test procedures suitable for this type of equipment should be stipulated according to the requirements of this part.

GB/T 311.1-2012 Referenced Document

• GB 11032 Metal-oxide surge arresters without gaps for a.c. systems
• GB/T 11022 Common specifications for high-voltage alternating-current switchgear and controlgear standards*， 2020-12-14 Update
• GB/T 16927.1 High-voltage test techniques.Part 1:General definitions and test requirements
• GB/T 26218.1 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions.Part 1:Definitions,information and general principles
• GB/T 2900.19-1994 Electrotechnical terminology.High-voltage test technique and insulation co-ordination
• GB/T 311.2 Insulation co-ordination.Part 2:Application guide*， 2013-02-07 Update
• IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
• IEC 60721-2-3 Classification of environmental conditions - Part 2-3: Environmental conditions appearing in nature - Air pressure*， 2013-06-01 Update

GB/T 311.1-2012 history

• 2012 GB 311.1-2012 Insulation co-ordination.Part 1:Definitions,principles and rules
• 1997 GB 311.1-1997 Insulation co-ordination for high voltage transmission and distribution equipment
• 0000年 GB 311.1-1983

GB/T 311.1-2012 Insulation co-ordination.Part 1:Definitions,principles and rules has been changed from GB 311.1-1997 Insulation co-ordination for high voltage transmission and distribution equipment.

GB/T 311.1-2012 -All Parts