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GB/T 33342-2026Technical requirements for the grid connection of residential distributed photovoltaic systems (English PDF)

户用分布式光伏发电并网技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 31, 2026

Implementation date

July 1, 2026

Scope

GB/T 33342-2026 is the English-translated version of 户用分布式光伏发电并网技术要求.

GB/T 33342-2026 is the Chinese standard "Technical requirements for the grid connection of residential distributed photovoltaic systems".

Its scope clause reads: This document specifies the active power, reactive voltage, fault ride-through, grid adaptability, and power quality for grid-connected residential distributed photovoltaic (PV) power generation.

Technical requirements for start-up and shutdown, relay protection, power metering, communication and information, and grid connection testing.

This document applies to the grid connection, commissioning, and maintenance of newly built or renovated (expanded) residential distributed photovoltaic power generation systems connected to the grid at a 220V voltage level. run. Its clauses include terms and definitions.

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Document preview — GB/T 33342-2026

National Standard of the People's Republic of China

ICS: 27.160
Classification: F 12
Replacing: GB/T 33342-2016

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Active power
5.Reactive voltage
6.Fault Trip
7.Power grid adaptability
8 Power Quality
9 Start/Stop
10 Relay protection
11.Electricity metering
12 Communication and Information
13 Grid connection testing
Appendix A (Normative) Reactive Voltage Control Mode
Appendix B (Informative) Relationship between sliding window time and rate of change of frequency
References

1 Scope

This document specifies the active power, reactive voltage, fault ride-through, grid adaptability, and power quality for grid-connected residential distributed photovoltaic (PV) power generation.

Technical requirements for start-up and shutdown, relay protection, power metering, communication and information, and grid connection testing.

run.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 12325 Power Quality - Supply Voltage Deviation

GB/T 12326 Power Quality - Voltage Fluctuations and Flicker

GB/T 13955 Installation and Operation of Residual Current Operated Protective Devices

GB/T 14549 Power Quality - Harmonics in Public Power Grids

GB/T 15945 Power Quality - Frequency Deviation of Power Systems

GB/T 17215.321 Electrical measuring equipment (AC) Part 21.Static active energy meters (Class A, Class B, Class C,...

(Class D and Class E)

GB/T 24337 Power Quality - Inter-grid Harmonics

GB/T 50065 Grounding Design Code for AC Electrical Installations

DL/T 448 Technical Management Regulations for Electricity Metering Devices

DL/T 614 Multifunctional Energy Meter

DL/T 645 Communication Protocol for Multifunctional Energy Meters

DL/T 698.45 Power Information Acquisition and Management System - Part 4-5.Communication Protocol - Object-Oriented Data Exchange Protocol

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1

Output aggregation point for residential distributed photovoltaic power generation.

3.2

Connection point for household distributed photovoltaic power generation to the public power grid.

3.3 response time

During the control process, from the moment a control command is received or a change in the state variable that triggers a control operation is detected, until the observed variable is actually output...

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 13 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 33342

Edition	Title	Revision	Status
GB/T 33342-2026	Technical requirements for the grid connection of residential distributed photovoltaic systems	current edition	Current
GB/T 33342-2016	Technical requirements for the grid connection of residential distributed photovoltaic systems	previous edition	Superseded

This page sells the current edition, GB/T 33342-2026. Earlier editions are listed for reference only.

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