GB/T 30556.5-2025Electromagnetic compatibility - Installation and mitigation guidelines - Part 5: Specification of protective devices for HEMP conducted disturbance (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is part 5 of GB/T (Z) 30556 "Electromagnetic Compatibility Installation and Mitigation Guidelines". GB/T (Z) 30556 has been published the following parts.

--- General requirements (GB/Z 30556.1);

--- Grounding and wiring (GB/Z 30556.2);

--- Protection concept against high altitude nuclear electromagnetic pulse (HEMP) (GB/Z 30556.3);

--- Part 5: Specification for HEMP conducted disturbance protection devices (GB/T 30556.5);

---Electromagnetic disturbance protection level of enclosure (EM code) (GB/T 30556.7);

--- Part 8: HEMP protection methods for distributed infrastructure (GB/Z 30556.8);

--- Part 9: Coefficient level sensitivity evaluation of HEMP and HPEM (GB/Z 30556.9).

This document is equivalent to IEC 61000-5-5:1996 "Electromagnetic compatibility Part 5: Installation and mitigation guidelines Part 5.

HEMP conducted disturbance protection device specification basis EMC publication.

The following minimal editorial changes were made to this document.

--- In order to adapt to my country's standard system, the name of the standard was changed to "Electromagnetic Compatibility Installation and Mitigation Guidelines Part 5: HEMP "Specifications for Conducted Disturbance Protection Devices".

Introduction

Electromagnetic compatibility refers to the ability of electrical and electronic equipment or systems to work properly in their electromagnetic environment and not cause any adverse effects on anything in the environment.

The electromagnetic compatibility problem is one of the important factors affecting the environment and product quality. Its standardization work has attracted in this regard, the IEC 61000 series of standards developed by the International Electrotechnical Commission (IEC) is a key standard for the manufacturing and information industries.

General standards in the fields of industry, electrical engineering and energy, transportation, social services and health, consumer product quality and safety, etc.

There are six categories. description, environment, limit, test and measurement technology, installation and mitigation guidelines, and general standards. my country has carried out research on this series of standards.

Domestic transformation work has been carried out and a corresponding national standard system has been established.

In this standard system, GB/T (Z) 30556 "Electromagnetic Compatibility Installation and Mitigation Guidelines" is about the installation and mitigation of electromagnetic compatibility.

The basic standard on measures aims to describe the electromagnetic environment protection methods, devices, mitigation methods, etc., and is planned to consist of 10 parts.

--- General requirements (GB/Z 30556.1). The purpose is to provide general requirements and guidelines for mitigation methods to ensure that and electromagnetic compatibility of electrical and electronic equipment or systems used in industrial environments.

--- Grounding and wiring (GB/Z 30556.2). The purpose is to provide grounding and wiring guidelines for electrical and electronic equipment and facilities.

Ensure the electromagnetic compatibility of electrical and electronic equipment or systems.

--- Protection concept of high altitude nuclear electromagnetic pulse (HEMP) (GB/Z 30556.3). The purpose is to provide relevant information on the protection of civil facilities against Adequate protection design for HEMP, assessment of the strength of the HEMP to be sustained by existing protection, requirements for HEMP protection and lightning protection Basic information on the differences in requirements.

--- Part 4: HEMP immunity HEMP disturbance protection device technical specification (expected to be Part 4). The purpose is to to specify the protective devices used to protect civilian systems from HEMP effects, in order to unify the technologies that have been or will be released by all parties specification.

--- Part 5: Specification for HEMP conducted disturbance protection devices (GB/T 30556.5). The purpose is to describe the the corresponding parameter index specifications of the disturbance protection device are guaranteed by the manufacturer of the protection device, the manufacturer of the electronic equipment, the official agency conformity with existing or future specifications published by the organization and other end users.

--- Part 6: Mitigation of external electromagnetic influences (expected to be Part 6). The purpose is to describe the mitigation of external electromagnetic influences such as Guidelines for the protection of electrical and electronic equipment or systems from electromagnetic influences such as lightning, radio frequency transmitters, power lines and telecommunications transients.

Electromagnetic compatibility between.

---Electromagnetic disturbance protection level of enclosure (EM code) (GB/T 30556.7). The purpose is to provide a repeatable test method to Evaluate the shielding performance of empty structural enclosures such as chassis and racks, and specify codes to allow manufacturers to use known electromagnetic field attenuation to Reduce capacity to select the shell.

--- Part 8: HEMP protection methods for distributed infrastructure (GB/Z 30556.8). The purpose is to provide Provide guidance on protecting infrastructure (power, communications, transportation, pipeline networks, etc.) from the threat of HEMP.

--- Part 9: System-level sensitivity assessment of HEMP and HPEM (GB/Z 30556.9). The purpose is to provide Effective methods for evaluating the system-level sensitivity of electronic systems to HEMP and HPEM environments, and discuss the advantages and disadvantages of these methods Points and application examples.

--- Part 10: Guidelines for the protection of HEMP and IEMI facilities (expected to be Part 10). The purpose is to protect commercial facilities Free from HEMP and IEMI providing guidance.

EMC Installation and Mitigation Guidelines Part 5: Specification for HEMP conducted disturbance protection devices

1 Scope

This document specifies how to specify conducted disturbance protection devices for HEMP protection.

A list of existing or future specifications published by device manufacturers, electronic equipment manufacturers, official agencies and other end users the performance requirements of protective devices are given in subsequent national standards.

This document covers the current protection against HEMP transients on signal lines and low voltage power lines (nominal voltage AC 1kV or less).

Appropriate protective devices.

The general information on protective devices also applies to high-voltage lines. However, in these cases, the information on existing arresters (especially ungapped metal ones) is Additional requirements for the degree of protection of metal oxide arresters are under consideration.

In general, the HEMP related parameters of interest are those related to the electromagnetic field, voltage (u) and current as a function of time.

(i) is related to the rapid change of the HEMP phenomenon. For the basic specification, reference may be made to other relevant standards that are not limited to the HEMP phenomenon (see Appendix E).

Where these standards do not adequately take into account the requirements of modern electronic equipment, they may be modified or expanded on the basis of non-HEMP related standards.

Added specifications.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

Note. GB/T 16927.1-1997 High Voltage Test Technology Part 1: General Definitions and Test Requirements (IEC 60060-1:1989, IDT) IEC 60099-1 Surge arresters - Part 1: Non-linear gapped valve arresters for AC systems Note. GB/T 15287-1994 Radio Frequency Interference Suppression Filters Part 1: General Specification (IEC 60939-1:1988, IDT) IEC 60939-2 Radio frequency interference suppression integrated filters Part 2: Selection of test methods and general requirements for sectional specifications (Com-Note. GB/T 15288-1994 Radio Frequency Interference Suppression Filters Part 2: Selection of test methods and general requirements for sub-specifications (IEC 939-2.

1988,IDT)

IEC 61000-4-24 Electromagnetic compatibility (EMC) Part 4-24.Testing and measurement techniques Protection against HEMP conducted disturbances Note. GB/T 17626.24-2012 Electromagnetic compatibility test and measurement technology Test method for HEMP conducted disturbance protection device (IEC 61000-4-24.

1997,IDT)