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GB/T 40134-2021Electromagnetic compatibility requirements for space systems (English PDF)

航天系统电磁兼容性要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 21, 2021

Implementation date

December 1, 2021

Scope

GB/T 40134-2021 is the English-translated version of 航天系统电磁兼容性要求.

GB/T 40134-2021 sets the electromagnetic compatibility (EMC) requirements for space systems, from the complete system down to subsystems and equipment, together with the requirements for verifying and evaluating them.

It applies to spacecraft such as satellites, space stations and deep space probes, to launch vehicles and to their ground and on-orbit support systems.

At system level it deals with EMI safety margins, the external electromagnetic environment, passive intermodulation, micro discharge, power quality and bus transients, lightning, static control, electromagnetic pulse, magnetic field and magnetic moment, radiation hazards to personnel, fuel and electro-explosive devices, grounding and bonding, and spectrum compatibility.

For subsystems and equipment it lists conducted and radiated emission and susceptibility requirements over defined frequency ranges, and a final chapter covers EMC test verification and assessment. It was issued on 21 May 2021 and has applied since 1 December 2021.

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Document preview — GB/T 40134-2021

National Standard of the People's Republic of China

ICS: 49.020
Classification: V 70

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

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 General requirements
5.1 General requirements for system-level EMC
5.2 General EMC requirements between systems
5.3 General EMC requirements for sub-systems and equipment
6 Detailed system-level EMC requirements
6.1 EMI safety margin
6.2 External electromagnetic environment
6.3 EMC in the system
6.3.1 General requirements
6.3.2 Passive Intermodulation (PIM)
6.3.3 Micro discharge
6.3.4 Power quality requirements
6.3.5 Power bus transient
6.3.6 "Disengagement" test
6.3.7 Receiver EMI safety margin
6.4 Thunder
6.5 Static control and protection
6.5.1 General requirements
6.5.2 Electrostatic control and protection of the launch vehicle system
6.5.3 Static control and protection of spacecraft system
6.6 Electromagnetic Pulse (EMP)
6.7 Electromagnetic interference of subsystems and equipment
6.8 Magnetic field and magnetic moment
6.9 Protection against electromagnetic radiation hazards
6.9.1 Protection against the hazards of electromagnetic radiation to personnel
6.9.2 Protection against the hazards of electromagnetic radiation to fuel
6.9.3 Protection against the harm of electromagnetic radiation to EED
6.10 Life cycle E3 control
6.11 System grounding and bonding
6.11.1 General requirements
6.11.2 Spacecraft electrical bonding and grounding requirements
6.11.3 Electrical bonding and grounding requirements for launch vehicles
6.12 Electromagnetic spectrum compatibility
6.13 Material characteristics
7 Detailed EMC requirements for sub-systems and equipment
7.1 Conducted emissions
7.1.1 25Hz~150kHz power cord audio conduction emission
7.1.2 150kHz~20MHz power line radio frequency conduction emission
7.1.3 150kHz~20MHz cable bundle radio frequency common mode conducted emission
7.1.4 Conducted emission from 10kHz~40GHz antenna terminal
7.1.5 Power line spike signal (time domain) conducted emission
7.2 Conducted sensitivity
7.2.1 Audio conduction sensitivity of 25Hz~150kHz power cord
7.2.2 25Hz~50kHz ground wire audio conduction sensitivity
7.2.3 15kHz~10GHz antenna terminal intermodulation conduction sensitivity
7.2.4 25Hz~20GHz antenna terminal useless signal suppression conduction sensitivity
7.2.5 25Hz~20GHz antenna terminal intermodulation conduction sensitivity
7.2.6 Spike signal conduction sensitivity of power cord
7.2.7 Ground level (crust ground) injection spike signal conduction sensitivity
7.2.8 50Hz~100kHz shell current conduction sensitivity
7.2.9 25Hz~150kHz ground plane (shell ground) injection audio frequency conduction sensitivity
7.2.10 150kHz~100MHz ground plane (shell ground) injection radio frequency conduction sensitivity
7.2.11 ESD sensitivity
7.2.12 10kHz~400MHz cable harness injection radio frequency conduction susceptibility
7.2.13 Cable bundle injection pulse excitation conduction sensitivity
7.2.14 10kHz~100MHz cable and power line damped sinusoidal transient conduction sensitivity
7.2.15 Lightning induced transient conduction susceptibility of cables and power lines
7.2.16 Voltage sag, short-term interruption and voltage change immunity
7.2.17 Electrical fast transient pulse group immunity test
7.3 Radiated emissions
7.3.1 25Hz~100kHz magnetic field radiation emission
7.3.2 10kHz~40GHz electric field radiation emission
7.3.3 10kHz~40GHz antenna harmonic and spurious output radiation emission
7.4 Radiation sensitivity
7.4.1 25Hz~100kHz magnetic field radiation sensitivity
7.4.2 10kHz~40GHz electric field radiation sensitivity
7.4.3 Sensitivity to transient electromagnetic radiation
7.5 Electromagnetic leakage of microwave passive components
8 Test verification and evaluation requirements
8.1 General requirements
8.2 EMC test verification requirements
8.2.1 System-level EMC test requirements
8.2.2 EMC test requirements for sub-systems and equipment
8.3 EMC assessment requirements
Appendix A (informative appendix) EMC test program
Reference

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the relevant index requirements and the basic requirements for analysis and verification that must be met to ensure the electromagnetic compatibility of aerospace systems.

Including the electromagnetic compatibility requirements of systems, sub-systems and equipment at all levels and their test verification and evaluation requirements.

This standard applies to spacecraft (including spacecraft such as satellites, spacecraft, space stations and deep space probes) and launch vehicles and corresponding Electromagnetic compatibility analysis and test verification of ground and on-orbit support systems, sub-systems and equipment.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For all undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 4365-2003 Electrotechnical terminology electromagnetic compatibility

GB 8702-2014 Electromagnetic environment control limits

GB/T 17626.2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test

GB/T 17626.4 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test

GB/T 17626.11 Electromagnetic compatibility test and measurement technology Voltage sag, short-term interruption and voltage change immunity test

GB/T 17626.29 Electromagnetic compatibility test and measurement technology DC power input port voltage sag, short-term interruption and voltage change Modified immunity test

GB/T 29084-2012 Spacecraft grounding requirements

GB/T 32307-2015 Spacecraft Magnetic Evaluation and Control Method

3 Terms and definitions

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

3.1 Electromagnetic environment

The sum of all electromagnetic phenomena existing in a certain place.

Note: Personnel, systems and their carrying platforms may encounter radiation, conduction or induction in the expected use environment when performing specified missions and tasks. The distribution of intensity (voltage, current, field strength, power density, etc.) and time of electromagnetic energy in different frequency ranges.

3.2 Electromagnetic environment level

In the specified test location and test time, the existing radiated and conducted signal and noise levels.

Note: The environmental level is formed by man-made and natural electromagnetic energy.

3.3 Electromagnetic interference

Any conduction or radiation that may interrupt, hinder, or even reduce or limit the performance of radio communications or other electrical and electronic systems and equipment Electromagnetic energy.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 36 pages — is available in the English PDF.

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Normative references

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