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GB/T 50064-2014Code for design of overvoltage protection and insulation coordination for AC electrical installations (English PDF)

交流电气装置的过电压保护和绝缘配合设计规范

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Issued by

Ministry of Housing and Urban-Rural Development of the People's Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

Level / Type

National · Recommended

Issue date

March 31, 2014

Implementation date

December 1, 2014

Scope

GB/T 50064-2014 is the English-translated version of 交流电气装置的过电压保护和绝缘配合设计规范.

GB/T 50064-2014 — 1.0.1 This specification is formulated to make the overvoltage protection and insulation coordination design of AC electrical installations safe, reliable, advanced in technology, and economical and reasonable.

1.0.2 This specification is applicable to the overvoltage protection and insulation coordination design of electrical installations for power generation, transmission, transformation and distribution, and rotating electrical machines in power systems with AC nominal voltages of 6kV to 750kV.

1.0.3 The overvoltage protection and insulation coordination of AC electrical installations should be designed in a differentiated manner through calculation analysis and technical and economic comparison in combination with the grid structure, regional lightning activity characteristics, ground flash density and operating experience.

1.0.4 The design of overvoltage protection and insulation coordination of AC electrical installations shall not only comply with this specification, but also comply with the relevant current national standards.

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Document preview — GB/T 50064-2014

National Standard of the People's Republic of China

ICS: 29.240.01
Classification: P 62
Replacing: GBJ 64-1983

Issued by: Ministry of Housing and Urban-Rural Development of the People's Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

This standard applies to the nominal AC voltage 6kV ~ 750kV power system generation, transmission, substation, distribution of electrical equipment and rotating motor over-voltage protection and insulation coordination design.

Document data

International classification (ICS): 29.240.01.

Chinese classification (CCS): P62.

Estimated length of the Chinese original: 145,149 words.

Supersedes the earlier edition GBJ 64-1983.

Standards quoted by this document

GB 311.1

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 96 pages — is available in the English PDF.

Referenced standards

Cited by

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