GB/T 7256.4-2023 English PDF

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GB/T 7256.4-2023: Lighting fixtures for civil airport - Part 4: Wind direction indicator
Status: Valid

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Basic data

Standard ID: GB/T 7256.4-2023 (GB/T7256.4-2023)
Description (Translated English): Lighting fixtures for civil airport - Part 4: Wind direction indicator
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K71
Classification of International Standard: 29.140.01
Word Count Estimation: 14,174
Date of Issue: 2023-12-28
Date of Implementation: 2024-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 7256.4-2023: Lighting fixtures for civil airport - Part 4: Wind direction indicator

---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 29:140:01 CCSK71 National Standards of People's Republic of China Civil airport navigation aids Part 4: Wind Vane Published on 2023-12-28 2024-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Table of contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Category 1 5 Technical requirements 2 5:1 Environmental requirements 2 5:2 Wind resistance 2 5:3 Creepage distances and clearances 2 5:4 Fabric windsock requirements 2 5:5 Wind bag frame 3 5:6 Support structure 3 5:7 Windsock Movement 3 5:8 Windsock deployment 3 5:9 Photometric 3 5:10 Obstacle lights 3 5:11 Spraying 3 5:12 Labeling and instructions 4 6 Test methods 4 6:1 Environmental requirements 4 6:2 Wind resistance 4 6:3 Creepage distances and clearances 5 6:4 Requirements for fabric windsocks 5 6:5 Wind bag frame 5 6:6 Support structure 5 6:7 Windsock Movement 5 6:8 Windsock deployment 6 6:9 Luminosity 6 6:10 Obstacle lights 6 6:11 Spraying 6 6:12 Labeling and instructions 6 Appendix A (informative) Wind vane example diagram 7

Foreword

This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document is Part 4 of GB/T 7256 "Civil Airport Navigation Aids Lamps": GB/T 7256 has released the following parts: ---Part 1: General requirements; ---Part 2: Sequential flashing lights and runway threshold identification lights; ---Part 3: Precision approach course indicator; ---Part 4: Wind Vane; ---Part 5: Aviation beacons: Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed by China Light Industry Federation: This document is under the jurisdiction of the National Lighting Appliances Standardization Technical Committee (SAC/TC224): This document was drafted by: Op Lighting Co:, Ltd:, Hangzhou Huapu Yongming Optoelectronics Co:, Ltd:, and Huarong Lighting Co:, Ltd: The main drafters of this document: Zhao Jun, Liu Mingzhao, He Jintian, Jiang Lili:

Introduction

GB/T 7256 "Civil Airport Navigation Aids Lamps" is planned to consist of five parts: ---Part 1: General requirements: It mainly stipulates that tungsten lamps and LEDs are used as light sources in civil airports, and the power supply voltage does not exceed General requirements for 1000V navigation aid lamps: Suitable for providing light guidance signals for aircraft taxiing, takeoff or approach and landing: Navigation lights: The main products covered are approach lights, runway threshold identification lights, runway threshold wing bar lights, runway threshold lights, and runway end lights: Lights, touchdown zone lights, runway center line lights, runway edge lights, taxiway center line lights, taxiway edge lights, stop lights, runway warning lights, etc: ---Part 2: Sequential flashing lights and runway threshold identification lights: Mainly stipulates the requirements for use in civil airports to provide aircraft with clear Requirements for runway approach directional guidance sequence flashing lights and runway threshold identification lights: ---Part 3: Precision approach course indicator: It mainly stipulates the purpose of use in civil airports to provide pilots preparing to land with Requirements for precision approach path indicators depending on precision approach path indication: The main products covered are precision approach course indicators (PAPI) and Simplified Precision Approach Path Indicator (APAPI): ---Part 4: Wind vane: Mainly stipulates the requirements for wind vanes used in civil airports: ---Part 5: Aviation beacons: Mainly stipulates the equipment used in civil airports to indicate the location of the airport to aircraft (aircraft): requirements for aviation beacons: The main products covered include medium-intensity airport beacons, medium-intensity seaplane base beacons, high-intensity beacons Airport beacons, high-intensity seaplane base beacons, low-intensity airport beacons, low-intensity seaplane base beacons, etc: Civil airport navigation aids Part 4: Wind Vane

1 Scope

This document specifies the general requirements and technical requirements for wind vanes and describes the test methods for wind vanes: This document applies to wind vanes used in civil airports (including the civilian part of military-civilian airports):

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB/T 2423:1 Environmental testing of electrical and electronic products Part 2: Test methods Test A: Low temperature GB/T 2423:2 Environmental testing of electrical and electronic products Part 2: Test methods Test B: High temperature GB/T 4208 Shell protection level (IP code) GB/T 7000:1 Luminaires Part 1: General requirements and tests GB/T 7256:1 Civil airport navigation aids Part 1: General requirements GB/T 8427 Textile color fastness test Color fastness to artificial light: xenon arc MH/T 6012 Aviation obstruction lights

3 Terms and definitions

The terms and definitions defined in GB/T 7256:1 and the following apply to this document: 3:1 A device used to determine wind direction: Note: Its location can be seen by the pilot of the aircraft in flight or in the active area, and is not affected by airflow caused by nearby objects:

4 categories

4:1 According to the material of the support rod, it is divided into: ---L-806 type: using lightweight materials as the supporting structure (see Appendix A for typical components); ---Type L-808: Use fragile materials as support structure (see Appendix A for typical components): 4:2 According to the clear method, it is divided into: ---Type I-A: external lighting (see Appendix A for typical wind vane); ---Type I-B: Internal lighting (see Appendix A for typical wind vane); ---Type II: no lighting: ......

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