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GB/Z 30556.3-2017Electromagnetic compatibility -- Installation and mitigation guidelines -- HEMP protection concepts (English PDF)

电磁兼容安装和减缓导则高空核电磁脉冲（HEMP）的防护概念

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

Level / Type

National · Recommended

Issue date

September 29, 2017

Implementation date

April 1, 2018

Scope

GB/Z 30556.3-2017 is the English-translated version of 电磁兼容安装和减缓导则高空核电磁脉冲（HEMP）的防护概念.

GB/Z 30556.3-2017 is the Chinese standard "Electromagnetic compatibility -- Installation and mitigation guidelines -- HEMP protection concepts".

Its scope clause reads: This part of GB /Z 30556 defines the concept of protection of electromagnetic pulses generated by high-altitude nuclear explosion (hereinafter referred to as HEMP) and gives Related information.

The purpose of this section is to provide some groundwork for the following areas. --- Civil Facilities HEMP adequate protection design; --- The existing protection against the HEMP strength assessment; --- Comparison of HEMP protection and lightning protection requirements, the purpose is to show whether they can low-cost combination; --- Emphasized the difference between HEMP protection and lightning protection requirements, the purpose is to assess when there is no additional lightning protection Protective measures HEMP results.

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Document preview — GB/Z 30556.3-2017

National Standard of the People's Republic of China

ICS: 33.100.01
Classification: L 06

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Overview
5 protection principle
5.1 Overview
5.2 Division
5.3 radiation harassment protection
5.4 Conducted harassment protection
5.5 Cabling and Installation Guidelines
5.6 HEMP and the relationship between lightning protection principle
6 component selection
6.1 Selection of circuit components
6.2 suppression of radiation harassment protection device selection
6.3 Suppression of Conducted Interference Guard Selection
7 protection concept
7.1 Overall Considerations
7.2 Topology Considerations
7.3 Definition of protection concept
8 HEMP and lightning electromagnetic pulse (LEMP) Comparison of Conducted Harassment Measures
8.1 Overview
8.2 Peak current i
8.3 The maximum value of di/dt
8.4 maximum du/dt
8.5 i × dt integral
8.6 Integral of i2 × dt
8.7 Half-peak time
8.8 HEMP and LEMP Protection Comparison Conclusion
Appendix A (informative) Early HEMP and lightning radiation environment
Appendix B (informative) The use of primary coil for the distribution transformer layout triangle
Appendix C (Informative) Transmission characteristics of protective measures

1 Scope

This part of GB /Z 30556 defines the concept of protection of electromagnetic pulses generated by high-altitude nuclear explosion (hereinafter referred to as HEMP) and gives

Related information.

The purpose of this section is to provide some groundwork for the following areas.

--- Civil Facilities HEMP adequate protection design;

--- The existing protection against the HEMP strength assessment;

--- Comparison of HEMP protection and lightning protection requirements, the purpose is to show whether they can low-cost combination;

--- Emphasized the difference between HEMP protection and lightning protection requirements, the purpose is to assess when there is no additional lightning protection

Protective measures HEMP results.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 4365-2003 Electrotechnical terminology Electromagnetic compatibility [IEC 60050 (161) .1990, IDT]

Electromagnetic compatibility (EMC) test and measurement techniques Surge (immunity) immunity test (IEC 61000-4-5).

2005, IDT)

GB/T 19271.1-2003 lightning electromagnetic pulse protection Part 1. General (IEC 61312-1.1995, IDT)

High voltage test techniques - Part 2. Measurement systems (High - voltagetesttechniques - Part 2.

Measuringsystems

Surge arresters - Part 1. Surge arresters for AC systems -

Part 1.Non-linearresistortypegappedsurgearrestersfora.c.systems)

IEC 61000-2-9.1996 Electromagnetic compatibility (EMC) part 2-9. Environment HEMP environment Description Radiation Harassment (Elec- tromagneticcompatibility (EMC) -Part 2.Environment-Section9.DescriptionofHEMPenviron- ment-Radiated disturbance

IEC 61000-2-10.1998 Electromagnetic compatibility (EMC) part 2-10. Environment HEMP environment Description Conducted disturbance (Electromagneticcompatibility (EMC) -Part 2-10.Environment-DescriptionofHEMPenviron- ment-Conducteddisturbance

IEC 61000-2-11, Electromagnetic compatibility (EMC), part 2-11 Environmental HEMP Environmental Description HEMP Environmental Classification (Electromagneticcompatibility (EMC) -Part 2-11.Environment-DescriptionofHEMPenviron- ment-Classification of HEMPenvironments)

IEC 61000-4-23, Electromagnetic compatibility testing and measurement techniques - Test methods for devices protecting HEMP and other radiated disturbances (Electromagneticcompatibility (EMC) -Part 4-23.Testing and measuringtechniques-Testmeth- odsforprotectivedevicesforHEMPandotherradiateddisturbances)

IEC 61000-4-24.1997 Electromagnetic compatibility test and measurement techniques - Protection against HEMP and other devices that conduct disturbances

GB/T 37284 | GB/T 37283 | GB/Z 37150 | GB/Z 30556.9 | GB/Z 30556.8 | GB/T 30556.5 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 57 pages — is available in the English PDF.

Referenced standards

Normative references

IEC 60050 · IEC 61000 · IEC 61312

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