GB 7260.2-2009Uninterruptible power systems (UPS) - Part 2: Electromagnetic compatibility (EMC) requirements (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting.

This document is Part 2 of GB/T 7260 "Uninterruptible Power Supply Systems (UPS)". GB/T 7260 has already published the following parts.

---Part 1: Safety Requirements;

---Part 2: Electromagnetic Compatibility (EMC) Requirements;

---Part 3: Methods for determining performance and test requirements;

---Part 4: Environmental Requirements and Reporting;

---Part 5-3.DC Output UPS Performance and Testing Requirements this document supersedes GB/T 7260.2-2009 "Uninterruptible Power Supply Equipment (UPS) - Part 2: Electromagnetic Compatibility (EMC) Requirements", and is consistent with...

Compared with GB/T 7260.2-2009, apart from structural adjustments and editorial changes, the main technical changes are as follows.

---The scope has been changed (see Chapter 1, Chapter 1 of the 2009 edition);

---Added the terms "DC interface", "DC port", "network port", "Category 1 environment", "Category 2 environment", and "Category C1 uninterruptible power supply".

The terms "Category C2 Uninterruptible Power Supply System", "Category C3 Uninterruptible Power Supply System", and "Category C4 Uninterruptible Power Supply System" have been shortened to include abbreviations.

(See Chapter 3)

---The chapter on "Environment" has been deleted (see Chapter 4 in the 2009 edition);

---Some requirements for Class C2 UPS and provisions for Class C3 UPS have been changed (see 4.2 and 4.3, and 5.2 and 5.3 in the 2009 edition);

---A "documentation" requirement has been added (see 4.6);

---The general measurement conditions, as well as the specifications for conducted emission ports and limits, have been changed (see 5.3.1 and 5.3.2, 6.3 and 2009 editions).

---The output characteristic criterion in Table 4, "Performance Criteria for Immunity Tests," has been removed, clarifying the performance criteria for immunity tests (see...).

6.2 (7.2 in the 2009 edition);

---The minimum immunity requirements for Class C1, C2, and C3 UPS have been changed (see Tables 5 and 6, Table 5 in the 2009 edition).

(and Table 6);

---The specifications for low-frequency signal immunity and power frequency magnetic field immunity have been revised (see 6.3.2 and 6.3.3, and 7.4 and 7.5 in the 2009 edition);

---Some provisions in the electromagnetic launch test methods have been changed (see Appendix A, Appendix A of the 2009 edition);

---The electromagnetic emission limit for signal ports has been removed, and an electromagnetic emission limit for network ports has been added (see Appendix C, 2009 edition).

Appendix C);

---The requirements for wiring tests have been changed (see D.3.2, D.3.2 of 2009).

This document is modified to adopt IEC 62040-2:2016 "Uninterruptible power supply systems (UPS) - Part 2: Electromagnetic compatibility (EMC)".

Require".

The technical differences between this document and IEC 62040-2:2016, and the reasons therefor, are as follows.

---CISPR11.2015 has been replaced with the normatively referenced GB 4824-2025.There are technical differences between the two versions.

This is because it is adapted to my country's technological conditions;

---The technical content between the two versions has been replaced by the normatively referenced GB/T 17626.3-2023.

The difference lies in adapting to my country's technological conditions;

--- Replace CISPR16-1-4.2010 and AMD1.2012 with the normatively referenced GB/T 6113.104-2025.

The technical content differs between them because they are adapted to my country's technological conditions;

--- Replace CISPR16-2-3.2010 AMD1.2010 with the normatively referenced GB/T 6113.203-2023.

In.2014, there were differences in the technical content between the two versions because they were adapted to my country's technological conditions.

--- Replaced CISPR22.2008 with the normatively referenced CISPR32.2015 AMD1.2019, ensuring consistency between the two files.

The level of modification is due to the fact that CISPR 22.2008 has been replaced by CISPR 32.2015;

---Changes have been made to the specifications for antennas and common-mode absorption devices in electromagnetic emission test and measurement equipment, as well as for radiated emission test antennas and devices in strong radiation conditions.

Specifications for measurements under environmental signals, to adapt to my country's technical conditions (see A.2.4, A.2.5, A.8.3 and A.10.2);

---The requirements for wiring tests have been changed to suit my country's technical conditions (see D.3.2).

The following editorial changes have been made to this document.

---Incorporates the interpretation of network port limits in IEC 62040-2:2016/ISH1.2018 (see 5.3.2.4).

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Technical Committee on Standardization of Power Electronic Systems and Equipment (SAC/TC60).

Introduction

GB/T 7260 provides a series of general standards for uninterruptible power supply systems (UPS). It is proposed to consist of the following parts.

---Part 1: Safety Requirements. The purpose is to ensure the safety of general personnel and skilled technicians who come into contact with uninterruptible power supply systems.

To fully reduce the hazards of fire, electric shock, heat, energy, and machinery during use and operation, as well as during repairs and maintenance as specified in the instructions.

risk.

---Part 2: Electromagnetic Compatibility (EMC) Requirements. The purpose is to ensure that uninterruptible power supply systems meet the necessary basic EMC requirements.

The goal is to prevent the uninterruptible power supply (UPS) system from interfering with other equipment and to prevent the UPS system from being affected by external equipment.

---Part 3: Methods for determining performance and testing requirements. The aim is to standardize complete uninterruptible power supply systems and individual uninterruptible power supplies.

Performance and testing requirements for power system functional units.

---Part 4: Environmental Requirements and Reporting. This section aims to provide information for regulatory authorities, manufacturers, purchasers, certification bodies, and users.

References are provided to reduce the environmental impact of uninterruptible power supply systems throughout their lifespan.

---Part 5-1.Safety Requirements for DC Output UPS. The purpose is to ensure the safety of general personnel who come into contact with DC uninterruptible power supply systems.

The safety of skilled technicians is ensured, reducing the risk of fire, electric shock, and other hazards during use and operation, as well as during repairs and maintenance with special instructions.

Risks of heat, energy and mechanical hazards.

---Part 5-3.DC Output UPS Performance and Testing Requirements. The purpose is to standardize complete DC uninterruptible power supply systems (and...) Performance and testing requirements for non-individual DC uninterruptible power supply functional units.

Uninterruptible power supply system (UPS) Part 2: Electromagnetic Compatibility (EMC) Requirements

1 Scope

This document pertains to product type testing standards for electromagnetic compatibility (EMC) and is applicable to applications in residential, commercial, light industrial, or industrial environments.

In low-voltage power distribution systems, the port output voltage does not exceed DC 1500V or AC 1000V and includes portable, non-volatile energy storage devices.

Mobile, fixed, or built-in, plug-in, and permanently connected uninterruptible power supply systems (UPS).

This document specifies the emission limits for the entire UPS unit, provided that it is installed, operated, and maintained in accordance with the manufacturer's specifications.

Immunity levels, test methods, and performance criteria are designed to prevent the UPS from interfering with other equipment (such as radio receivers) and to protect the UPS from damage.

Basic EMC requirements for external equipment impact.

This document does not cover the EMC effects caused by the load or external devices connected to the UPS (as described in the immunity requirements).

except).

This document is harmonized with applicable IEC standards for electromagnetic emission limits and immunity levels, and includes additional requirements applicable to UPS systems.

This document does not cover.

a) Low-voltage DC power supply devices covered by IEC 61204;

b) Systems whose output voltage comes from a rotating electric motor.

Note 1.UPS systems are typically connected to their energy storage devices via a DC link. An example of a chemical battery-based energy storage device. Alternative devices may be applicable. Therefore, this...

The word "battery" in the document can be understood as "energy storage device".

Note 2.This document is based on product type testing and allows for EMC conformity assessment (compliance assessment) of Class C1, C2, and C3 UPS systems before they are placed on the market.

(Evaluation), and provides guidance for the conformity assessment of C4 UPS (see Chapter 4).

Note 3.This document considers the different test conditions required to cover the physical dimensions and power ratings of the entire UPS unit. A UPS unit typically consists of one or more interconnected units.

The UPS consists of interconnected UPS units. For detailed information on UPS configuration, please refer to Appendix A of GB/T 7260.3-2024.

Note 4.The above requirements are selected to ensure that UPS installed in residential, commercial, light industrial, and industrial locations have sufficient EMC levels. These requirements are not always applicable.

This is sufficient to cover low-probability events, including UPS failures.

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 4824-2025 Limits and methods of measurement for radio frequency interference characteristics of industrial, scientific and medical devices (CISPR11.2024) IDT) GB/T 6113.102-2025 Specification for Radio Interference and Immunity Measurement Equipment and Methods - Part 1-2.Radio Interference Coupling device for conducted disturbance measurement with immunity measurement equipment (CISPR16-1-2.2017, IDT) GB/T 6113.104-2025 Specification for Radio Interference and Immunity Measurement Equipment and Methods - Part 1-4.Radio Interference Immunity measurement equipment, antennas for radiated disturbance measurement, and test sites (CISPR 16-1-4.2023, IDT)