GB/T 47653-2026Technical specification for the electrical configuration on the user side of critical power supply assurance (English PDF)

3 Terms and definitions

4 Abbreviations

5 Basic requirements

6 Grading of the premises and of the guaranteed loads

7 Requirements on the power supply configuration and wiring

8 Requirements on the electrical equipment and devices

9 Requirements on the protection configuration and on information and communication

10 Requirements on the emergency power supply

11 Requirements for the special tests

12 Other requirements

Foreword

This document was issued on 2 July 2026 by the State Administration for Market Regulation and the Standardization Administration of the People's Republic of China, and takes effect on 1 February 2027.

It is the first edition of this standard.

The document is under the responsibility of the China Electricity Council.

Classification: ICS 29.020, CCS F 21.

3 Classification and status

GB/T 47653-2026 is classified under ICS 29.020, in the field of electrical engineering. ICS is the International Classification for Standards, the same scheme used by ISO and by the national bodies of most countries, which is what allows a Chinese standard to be placed beside its foreign counterparts on subject rather than on number.

Its Chinese Standard Classification code is CCS F 21. CCS is the domestic scheme, a letter for the sector and two digits for the subject within it, and it is the code by which the standard is filed and searched in China.

The GB/T prefix marks a recommended national standard. It is not, in itself, law: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it. In practice that covers most of the cases in which it will be read — a purchase specification, an inspection agreement or a certification scheme.