GB/Z 37150-2018 (English Version)

Standard No.: GB/Z 37150-2018
Language: Chinese, Available in English version
Release Date: 2018
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2025-11
Replace By: GB/T 37150-2025
Latest: GB/T 37150-2025

Scope: This guidance technical document provides guidance on the purpose and role of electromagnetic compatibility (hereinafter referred to as "EMC") risk assessment, risk assessment objects, risk criteria, risk assessment process, risk assessment tools, and risk assessment report requirements. This guidance technical document is used to guide the selection of appropriate EMC risk assessment technology and to assess EMC risks at the equipment level, system level, and engineering site level. This guidance technical document does not cover all EMC and risk assessment technologies, and the fact that a technology is not introduced does not mean that it is invalid.

Introduction

GB/Z37150—2018 Standard Overview

GB/Z37150—2018 "Guidelines for Electromagnetic Compatibility Reliability Risk Assessment" was proposed by the National Technical Committee for Radio Interference Standardization, aiming to guide the scientific assessment of electromagnetic compatibility (EMC) risks of equipment, systems and engineering sites. This standard is applicable to manufacturers, users and engineers in various industries and is used to control and reduce EMC risks throughout the product life cycle.

Background of Standard Formulation

With the widespread application of electronic equipment, electromagnetic interference problems have become increasingly prominent, seriously affecting product quality and reliability. This standard is based on the GB/T1.1—2009 standardization rules, integrating the experience of many domestic authoritative institutions, and combining the international EMC technology development trend to provide manufacturers with a systematic risk assessment method.

Technology Evolution Analysis

Electromagnetic compatibility technology has gone through the following key stages from the initial experimental test stage to the current risk assessment system:

Basic testing:Identify basic EMC problems through laboratory testing.

Systematic analysis:In-depth analysis based on equipment structure and circuit board characteristics.

Risk assessment:Establish a quantitative assessment system based on model construction and empirical data.

Continuous improvement:Optimize risk management strategies through dynamic supervision and inspection.

EMC Risk Assessment Process

Steps Description Key Outputs

Clear Environmental Information Define the use environment and test requirements of the assessment object, and determine the risk management objectives. Environmental information documents, risk criteria.

Risk Identification Discover potential risk factors based on the ideal model and record their impact. Risk list, risk source analysis report.

Risk Analysis Assess the probability of risk occurrence and the severity of consequences, and establish risk level classification. Risk matrix diagram, risk impact analysis report.

Risk assessment Combined with specific assessment techniques, comprehensively evaluate the risk level and formulate response strategies. Risk scoring table, risk control suggestions.

Implementation suggestions

Application case: a certain automotive electronic system

In the process of developing a new model of a certain automobile manufacturer, this standard is used to conduct EMC risk assessment. By clarifying the vehicle use environment (such as urban roads, highways, etc.), identifying key risk factors (such as high-frequency signal interference), and using the risk matrix method and hierarchical analysis method for comprehensive evaluation, effective protection measures are finally formulated.

This case demonstrates the effectiveness and operability of the standard in practical applications, especially how to ensure product reliability through hierarchical evaluation in complex systems.

Summary

GB/Z37150—2018 standard provides a systematic solution for the scientific management of electromagnetic compatibility risks. Manufacturers and engineers should select appropriate assessment tools (such as risk index method, risk matrix method or hierarchical analysis method) based on specific application scenarios to dynamically optimize risk management strategies.

Steps	Description	Key Outputs
Clear Environmental Information	Define the use environment and test requirements of the assessment object, and determine the risk management objectives.	Environmental information documents, risk criteria.
Risk Identification	Discover potential risk factors based on the ideal model and record their impact.	Risk list, risk source analysis report.
Risk Analysis	Assess the probability of risk occurrence and the severity of consequences, and establish risk level classification.	Risk matrix diagram, risk impact analysis report.
Risk assessment	Combined with specific assessment techniques, comprehensively evaluate the risk level and formulate response strategies.	Risk scoring table, risk control suggestions.

GB/Z 37150-2018 Referenced Document

GB/T 23694-2013 Risk management.Vocabulary
GB/T 4365-2003 Electrotechnical terminology Electromagnetic compatibility

GB/Z 37150-2018 history
2025 GB/T 37150-2025 Basic requirements for electromagnetic compatibility risk assessment
2018 GB/Z 37150-2018 Guide of risk assessment of EMC reliability
GB/Z 37150-2018 Guide of risk assessment of EMC reliability was changed to GB/T 37150-2025 Basic requirements for electromagnetic compatibility risk assessment.