GB/Z 6113.404-2023Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-4: Uncertainties, statistics and limit modelling - Statistics of complaints and a model for the calculation of limits for the protection of radio services (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.

GB/T (Z) 6113 "Specification for Radio Disturbance and Immunity Measurement Equipment and Measurement Methods" is the basic standard for electromagnetic compatibility.

This document is Part 4-4 of GB/T (Z) 6113. GB/T (Z)6113 has released the following parts.

Part 1. Radio disturbance and immunity measurement equipment ---Part 1-1. Radio disturbance and immunity measurement equipment Measuring equipment;

---Part 1-2. Coupling device for conductive disturbance measurement of radio disturbance and immunity measuring equipment;

---Part 1-3. Radio disturbance and immunity measurement equipment auxiliary equipment disturbance power;

---Part 1-4. Antennas and test sites for radiated disturbance measurements of radio disturbance and immunity measurement equipment;

---Part 1-5. Radio disturbance and immunity measurement equipment 5MHz~18GHz antenna calibration site and reference test site;

---Part 1-6. Radio disturbance and immunity measurement equipment EMC antenna calibration.

Part 2. Radio disturbance and immunity measurement methods ---Part 2-1. Radio disturbance and immunity measurement methods Conducted disturbance measurement;

---Part 2-2. Radio disturbance and immunity measurement methods Disturbance power measurement;

---Part 2-3. Radio disturbance and immunity measurement methods Radiated disturbance measurement;

---Part 2-4. Radio disturbance and immunity measurement methods Immunity measurement;

---Part 2-5. On-site measurement of harassment emissions from large equipment.

Part 3. Radio disturbance and immunity measurement technical report ---Part 3. Radio disturbance and immunity measurement technical report.

Part 4. Uncertainty, Statistics and Limit Modeling ---Part 4-1. Uncertainty, statistics and limit value modeling Uncertainty of standardized EMC tests;

---Part 4-2. Uncertainty, statistics and limit value modeling Uncertainty of measuring equipment and facilities;

---Part 4-3. Uncertainty, Statistics and Limit Value Modeling Statistical considerations for EMC compliance determination of batch products;

---Part 4-4. Uncertainty, statistics and limit modeling Statistics of complaints and limit calculation model for protecting radio services;

---Part 4-5. Conditions for use of uncertainty, statistics and limit modeling replacement test methods.

This document replaces GB /Z 6113.404-2007 "Specification for Radio Disturbance and Immunity Measurement Equipment and Measurement Methods Part 4-4.

Uncertainty, statistics and limit value modeling Complaint statistics and limit value calculation model", compared with GB /Z 6113.404-2007, except for structure In addition to adjustments and editorial changes, the main technical changes are as follows:

---Added terms, definitions, symbols and abbreviations (see Chapter 3);

---Changed the "Statistics of Complaints and Sources of Interference" (see Chapter 4, Chapter 4 of the 2007 edition);

---Changed "Application of Mathematical Basics" (see 5.5, 2007 version of 5.5);

---Added "Principles for determining CISPR limits in the frequency range below 30MHz" (see 5.6.5);

---Added "limit model for the magnetic field component of disturbance field strength used to protect radio reception in the frequency range below 30MHz" (see 5.6.6);

---Added "Principles for determining CISPR limits in the frequency range above 1GHz" (see 5.7).

This document is equivalent to CISPRTR16-4-4.2020 "Specification for Radio Disturbance and Immunity Measurement Equipment and Measurement Methods - Part 4-4" Points. Uncertainty, Statistics and Limit Value Modeling Statistics of Complaints and Limit Value Calculation Model for the Protection of Radio Services". This document has made the following minimal editorial changes.

---The formulas in 5.7 have corrected formula numbers according to the order of the formulas in the text;

---In 5.3.4, a description is added that my country's sound AM broadcast operates below 29.7MHz;

---The symbols such as eir in Figure 2 and its description have been corrected from lowercase to uppercase, and the international standard is wrong;

---The protection distance stipulated by CISPR is 30m, so the "approximate equivalent interference field strength 20m away from the equipment" in Table 3 is corrected to "distance from the equipment" Provide an approximate equivalent interference field strength of 30m";

---"sigmaPV" in C 2.3.3 is corrected to "sigmaCPV".

Introduction

In order to standardize electromagnetic compatibility measurements, consider measurement uncertainties and provide background information related to measurements, as well as label electromagnetic compatibility products.

The standard formulation and revision lays a technical foundation. GB/T (Z) 6113 specifies radio disturbance and immunity measurement equipment, measurement methods, and measurement uncertainty.

Qualification technical requirements and a model for calculating limits, which consists of four parts. Part 1 is the specifications for radio disturbance and immunity measurement equipment;

Part 2 is the specification for radio disturbance and immunity measurement methods; Part 3 is the technical report on radio disturbance and immunity measurement; Part 4 Divided into uncertainty, statistics and limit modeling. Part 4 is divided into 5 parts.

---Part 4-1. Uncertainty of standardized EMC tests. The purpose is to provide electromagnetic compatibility standard setters and revisers with Guidance on dealing with uncertainty.

---Part 4-2. Uncertainty of measuring equipment and facilities. The purpose is to provide for testing of equipment under test based on CISPR harassment limits.

How to apply the uncertainty of measuring equipment and facilities (MIU) method when making conformity determinations.

---Part 4-3. Statistical considerations for determination of EMC compliance of batch products. The purpose is to describe and determine the electromagnetic compatibility of batch products (EMC) Statistical considerations for compliance.

---Part 4-4. Complaint statistics and limit calculation model for protecting radio services. The purpose is to show how to deal with radio Suggestions on interference complaint statistics and calculation of limit values for disturbance field strength and disturbance voltage measurements at the test site.

---Part 4-5. Conditions for use of replacement test methods. The purpose is to provide product committees with information when using alternative test methods. Conversion method between established test method limits.

Radio disturbance and immunity measurement equipment and Measurement method specifications Part 4-4. Uncertainty, Statistics and Limits Modeling Complaint Statistics and Protecting Radio Business limit calculation model

1 Scope

This document gives suggestions on how to handle radio interference complaint statistics, describing disturbances based on radiated coupling and conducted coupling respectively. model to calculate the limits of disturbance field strength and disturbance voltage measurements at the test site.

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.

Note: GB/T 4365-2003 Electrical terminology electromagnetic compatibility [IEC 60050(161) 1990,IDT]

CISPR11 Radio frequency disturbance characteristics limits and measurement methods for industrial, scientific and medical radio frequency equipment (Industrial, scientific and medical urement)

Note: GB 4824-2019 Radio frequency disturbance characteristics limits and measurement methods for industrial, scientific and medical equipment (CISPR11.2016, IDT)

3 Terms, definitions, symbols and abbreviations