GB/T 45678-2025 English PDF

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GB/T 45678-2025: General requirements for civil tethered unmanned aircraft system
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Basic data

Standard ID: GB/T 45678-2025 (GB/T45678-2025)
Description (Translated English): General requirements for civil tethered unmanned aircraft system
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V36
Classification of International Standard: 49.020
Word Count Estimation: 18,179
Date of Issue: 2025-04-25
Date of Implementation: 2025-11-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45678-2025: General requirements for civil tethered unmanned aircraft system

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 49.020 CCSV36 National Standard of the People's Republic of China General requirements for civil tethered unmanned aerial vehicle systems Released on 2025-04-25 2025-11-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General Requirements 2 4.1 System composition 2 4.2 Performance requirements 2 4.3 Environmental adaptability requirements 3 4.4 Reliability Requirements 4 4.5 Security Requirements 4 4.6 Testability requirements 4 4.7 Maintainability requirements 4 4.8 Security requirements 5 4.9 Electromagnetic compatibility requirements 5 4.10 Requirements for tower connection 5 4.11 Human-computer interaction requirements 5 4.12 Interchangeability requirements 5 4.13 Material requirements 5 4.14 Standard Parts Requirements 5 5 Tethered Drone 6 5.1 Body 6 5.2 Powertrain 6 5.3 Aircraft electrical system 7 5.4 Flight Control and Navigation System 7 6 Data Link 8 6.1 Function 8 6.2 Performance 8 7 Ground Equipment 8 7.1 Tethered Cable 8 7.2 Pay-off and retracting device 9 7.3 Ground Control System 9 7.4 Ground Power Supply System 9 8 Mission Payload 10 9 Experimental Verification 10 9.1 Test Purpose 10 9.2 Test content 10

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. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Aircraft Standardization Technical Committee (SAC/TC435). This document was drafted by. Shenzhen Saiwei Intelligent Technology Co., Ltd., China Aviation Technology Research Institute, Shenzhen DJI Innovations Technology Ltd. The main drafters of this document are. Huang Taoli, Tang Jian, Zhou Qiru, Shu Zhenjie, Wang Qiuyang, Hu Yingdong, Zhao Yu, Li Linlin, Chen Pingping, Wang Jiuyuan, Zhang Zejing. General requirements for civil tethered unmanned aerial vehicle systems

1 Scope

This document specifies the general requirements for civil tethered UAV systems, tethered UAVs, data links, ground equipment, mission payloads and test validation. Certificate requirements. This document applies to the design, manufacture and test verification of civil tethered UAV systems.

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. GB/T 3956 Cable conductors GB/T 7424.1 General specification for optical cables Part 1.General GB/T 15972.10 Specification for optical fiber test methods Part 10.General principles for measurement methods and test procedures GB/T 34989 Connector safety requirements and tests GB/T 38909 Electromagnetic compatibility requirements and test methods for civil light and small unmanned aerial vehicle systems GB/T 38924.2 Environmental test methods for civil light and small unmanned aerial vehicle systems Part 2.Low temperature test GB/T 38924.3 Environmental test methods for civil light and small unmanned aerial vehicle systems Part 3.High temperature test GB/T 38924.5 Environmental test methods for civil light and small unmanned aerial vehicle systems Part 5.Impact test GB/T 38924.6 Environmental test methods for civil light and small unmanned aerial vehicle systems Part 6.Vibration test GB/T 38924.8 Environmental test methods for civil light and small unmanned aerial vehicle systems Part 8.Salt spray test GB/T 38924.9 Environmental test methods for civil light and small unmanned aerial vehicle systems Part 9.Waterproof test GB/T 38924.10 Environmental test methods for civil light and small unmanned aerial vehicle systems Part 10.Sand and dust test GB/T 38924.11 Environmental test methods for civil light and small unmanned aerial vehicle systems Part 11.Fungus test GB/T 38930 Wind resistance requirements and test methods for civil light and small unmanned aerial vehicle systems GB/T 38997 General requirements for flight control and navigation systems for light and small multi-rotor unmanned aerial vehicles HB8412 General requirements for civil aircraft system tower connections

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 A device that automatically/manually controls the reeling, arranging and releasing of moored cables. 3.2 The high-voltage direct current output from the ground power supply is converted to provide long-term and stable power supply for airborne electrical equipment. ......

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