GB/Z 41270.4-2026Process management for avionics - Atmospheric radiation effects - Part 4: Design of high voltage aircraft electronics managing potential single event effects (English PDF)
航空电子过程管理 大气辐射影响 第4部分：控制潜在单粒子效应的飞机高压设备设计
Also coversGB/Z41270.4-2026 + GBZ41270.4-2026
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 24, 2026
Implementation date
September 24, 2026
Scope
GB/Z 41270.4-2026 is the English-translated version of 航空电子过程管理 大气辐射影响 第4部分：控制潜在单粒子效应的飞机高压设备设计.
The subject of this guiding technical document is the design of high voltage aircraft electronics so that potential single event effects are managed. It forms Part 4 of the series on atmospheric radiation effects under process management for avionics. It is relevant to designers of aircraft power and high voltage electronic equipment, avionics manufacturers, reliability engineers and certification staff.
It adopts an international standard and was issued on 24 September 2026. As a GB/Z it offers guidance and is not a set of binding requirements. High voltage devices are particularly sensitive to energetic particles at flight altitude, since a single strike can trigger a destructive failure, which is why a dedicated part of the series addresses them. Engineers who need to consider how atmospheric radiation can influence high voltage electronics in aircraft can use it as a reference alongside the other parts of the series, each of which addresses a different aspect of the radiation environment.
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Document preview — GB/Z 41270.4-2026
National Standard of the People's Republic of China
- ICS
- 49.025
- Classification
- V 25
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
Foreword
GB/Z 41270.4-2026 is a national guiding technical document (GB/Z) of the People's Republic of China, issued on 24 September 2026 by the State Administration for Market Regulation and the Standardization Administration of China.
The document adopts an international standard (ISO or IEC).
It is under the responsibility of the Standardization Administration of China.
Classification: ICS 49.025; CCS V 25.
1 Scope
The subject of this guiding technical document is the design of high voltage aircraft electronics so that potential single event effects are managed. It forms Part 4 of the series on atmospheric radiation effects under process management for avionics. It is relevant to designers of aircraft power and high voltage electronic equipment, avionics manufacturers, reliability engineers and certification staff.
It adopts an international standard and was issued on 24 September 2026. As a GB/Z it offers guidance and is not a set of binding requirements. High voltage devices are particularly sensitive to energetic particles at flight altitude, since a single strike can trigger a destructive failure, which is why a dedicated part of the series addresses them. Engineers who need to consider how atmospheric radiation can influence high voltage electronics in aircraft can use it as a reference alongside the other parts of the series, each of which addresses a different aspect of the radiation environment.
Remaining clauses in the full document
- 2 Normative references
- 3 Terms and definitions
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
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Related Standards
GB/Z 41270.5-2026 — Process management for avionics - Atmospheric radiation effects - Part 5: Assessment of thermal neutron fluxes and single event effects in avionics systems
GB/Z 41270.6-2026 — Process management for avionics - Atmospheric radiation effects - Part 6: Potential impacts of extreme space weather on the avionics environment and electronic equipment
GB/Z 41270.8-2026 — Process management for avionics - Atmospheric radiation effects - Part 8: Proton, electron, pion, muon, alpha-ray fluxes and single event effects in avionics electronic equipment awareness guidelines
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