Valid

GB/T 43262-2023Guide to the troubleshooting electromagnetic interference (English PDF)

电磁干扰诊断导则

Preview PDF

This is a limited preview

Buy now to download the full PDF (56 pages)

Need quotation for your management?

Get a formal quotation for GB/T 43262-2023 in 30 minutes.

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 27, 2023

Implementation date

June 1, 2024

Scope

GB/T 43262-2023 is the English-translated version of 电磁干扰诊断导则.

This document gives the diagnostic techniques and the basic methods for troubleshooting electromagnetic interference in electronic and electrical equipment. The document applies to the diagnosis of EMI faults in such equipment and guides the work of clearing them.

Found what you need?

Document preview — GB/T 43262-2023

National Standard of the People's Republic of China

ICS: 33.100
Classification: L 06

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

Preface
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Abbreviations
4 Overview of electromagnetic interference diagnosis
4.1 Basic concepts of electromagnetic interference diagnosis
4.2 Electromagnetic interference diagnostic process
5 RE problem diagnosis
5.1 Overview
5.2 RE Checklist
5.3 Typical reasons for failure
5.4 RE fault diagnosis
5.5 Typical solutions
6 CE problem diagnosis
6.1 Overview
6.2 CE Checklist
6.3 Typical causes of failure
6.4 CE fault diagnosis
6.5 Special situations and issues
6.6 Typical solutions
7 RI Problem Diagnosis
7.1 Overview
7.2 RI Checklist
7.3 Typical failure modes
7.4 RI fault diagnosis
7.5 Special situations and issues
7.6 Typical solutions
8 CI problem diagnosis
8.1 Overview
8.2 CI Checklist
8.3 Typical failure modes
8.4 CI fault diagnosis
8.5 Special situations and issues
8.6 Typical solutions
9 EFT/B problem diagnosis
9.1 Overview
9.2 EFT/B Immunity Checklist
9.3 Typical failure modes
9.4 EFT/B fault diagnosis
9.5 Special situations and issues
9.6 Typical solutions
10 Surge (impact) problem diagnosis
10.1 Overview
10.2 Surge (Impact) Immunity Checklist
10.3 Typical failure modes
10.4 Surge (impact) fault diagnosis
10.5 Special situations and issues
10.6 Typical solutions
11 ESD problem diagnosis
11.1 ESD Overview
11.2 ESD Immunity Checklist
11.3 Typical failure modes
11.4 ESD fault diagnosis
11.5 Special situations and issues
11.6 Typical solutions
Appendix A (informative) PCB level RE diagnosis
Appendix B (informative) Design and selection of power filter
Appendix C (informative) Examples of surge suppression circuits for different ports
Reference

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.

1 Scope

This document provides electromagnetic interference (EMI) diagnostic techniques and basic methods for electronic/electrical equipment.

This document is applicable to EMI fault diagnosis of electronic/electrical equipment and provides guidance for solving EMI faults of electronic/electrical equipment.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 4365-2003 Electrical terminology electromagnetic compatibility

GB/T 17626.5-2019 Electromagnetic compatibility testing and measurement technology surge (impact) immunity test

3 Terms, definitions and abbreviations

3.1 Terms and definitions

The terms and definitions defined in GB/T 4365-2003 and the following apply to this document.

3.1.1 Attenuation

The amount by which a signal's voltage, current, or power decreases as it travels from one point to another.

3.1.2 Bonding

Obtain the lowest possible impedance (resistance and inductance) between two metal parts.

Note: DC resistance generally does not exceed 10mohm. Use a low current (<=100mA) 4-wire milliohmmeter for measurement.

3.1.3 Coupling path

The structure or medium through which energy is transmitted from a noise source to a disturbed circuit or system.

3.1.4 Crosstalk

Electromagnetic coupling from one circuit to another circuit.

Note: This phenomenon usually occurs between cables or circuit traces.

3.1.5 Harassment source disturbance source

Noise sourcenoisesource A source of electromagnetic interference or damage to other circuits or systems.

Examples. switching power supply, clock circuit (crystal oscillator circuit), high-speed data bus, switching of inductive loads, etc.

3.1.6 Insertion lossinsertionloss;IL

Losses caused by the insertion of switching networks in a transmission line or system.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 56 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 18487.2-2026|GB/T 48008-2026|GB/T 17626.9-2025|GB/T 37150-2025|GB/T 38659.5-2025|GB/T 46130-2025

How to Download GB/T 43262-2023

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.