GB 4715-2024 English PDF

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GB 4715-2024: Point-type smoke detectors using scattered light, transmitted light or ionization
Status: Valid

GB 4715: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 4715-2024	839	Add to Cart	6 days	Point-type smoke detectors using scattered light, transmitted light or ionization	Valid
GB 4715-2005	879	Add to Cart	6 days	Smoke detectors -- Point detectors using scattered light, transmitted light or ionization	Valid
GB 4715-1993	RFQ	ASK	6 days	Technical requirements and test methods for point type smoke fire detectors	Obsolete

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Basic data

Standard ID: GB 4715-2024 (GB4715-2024)
Description (Translated English): Point-type smoke detectors using scattered light, transmitted light or ionization
Sector / Industry: National Standard
Classification of Chinese Standard: C81
Classification of International Standard: 13.220.20
Word Count Estimation: 42,433
Date of Issue: 2024-04-29
Date of Implementation: 2025-05-01
Older Standard (superseded by this standard): GB 4715-2005
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB 4715-2024: Point-type smoke detectors using scattered light, transmitted light or ionization

---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 13:220:20 CCSC81 National Standards of People's Republic of China Replaces GB 4715-2005 Point type smoke detector Released on 2024-04-29 2025-05-01 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 Categories 1 5 Requirements 1 5:1 General Requirements 1 5:2 Packaging and Appearance 2 5:3 Performance of main components (devices) 2 5:4 Control software requirements 3 5:5 Smoke response repeatability 3 5:6 Smoke response direction 4 5:7 Conformance 4 5:8 Power supply parameter fluctuation performance 4 5:9 Anti-airflow interference performance 4 5:10 Anti-interference performance of ambient light (applicable to photoelectric detectors) 4 5:11 Electromagnetic compatibility performance 5 5:12 Climate and environment tolerance 5 5:13 Mechanical environmental resistance 6 5:14 Fire sensitivity 7 5:15 Sensing component contamination alarm function (applicable to photoelectric detectors) 7 5:16 Composite Detection 7 6 Test methods 7 6:1 General Principles 7 6:2 Smoke response repeatability test 9 6:3 Smoke response orientation test 9 6:4 Conformance test 10 6:5 Power supply parameter fluctuation performance test 10 6:6 Test for resistance to ambient light interference (applicable to optoelectronic samples) 10 6:7 Anti-airflow interference performance test 11 6:8 High temperature (operation) test 11 6:9 Low temperature (operation) test 12 6:10 Cyclic damp heat (operation) test 12 6:11 Steady-state heat and humidity (durability) test 12 6:12 Sulfur dioxide (SO2) corrosion (durability) test 13 6:13 Impact (operation) test 13 6:14 Collision test 13 6:15 Vibration (sinusoidal) (operating) test 14 6:16 Vibration (sinusoidal) (endurance) test 14 6:17 Radio frequency electromagnetic field radiation immunity test 14 6:18 Radio frequency field induced conducted disturbance immunity test 15 6:19 Electrostatic discharge immunity test 15 6:20 Electrical fast transient pulse group immunity test 15 6:21 Surge (impact) immunity test 16 6:22 Fire sensitivity test 16 6:23 Sensing component pollution alarm function test (applicable to photoelectric samples) 16 7 Inspection Rules 17 7:1 Factory Inspection 17 7:2 Type inspection 17 8 Sign 17 8:1 General Principles17 8:2 Product Labelling 18 8:3 Quality inspection mark 18 Appendix A (Normative) Threshold Test Smoke Box 19 Appendix B (Normative) Test smoke 24 Appendix C (Normative) Flashing Device 25 Appendix D (Normative) Collision Test Equipment 26 Appendix E (Normative) Combustion Laboratory 28 Appendix F (Normative) Test fire SH1---wood pyrolysis smoldering fire 29 Appendix G (Normative) Test fire SH2---Cotton rope smoldering fire 30 Appendix H (Normative) Test fire SH3---Polyurethane plastic fire 31 Appendix I (Normative) Test fire SH4---n-heptane fire 32 Appendix J (Normative) Dust environment simulation test device 33

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: This document replaces GB 4715-2005 "Point-type smoke detectors": Compared with GB 4715-2005, except for structural adjustments and editorial In addition to the modifications, the main technical changes are as follows: a) Added the classification of point-type photoelectric smoke detectors (see 4:2); b) Added terminal requirements (see 5:3:3); c) Changed the range requirements for the response threshold of point-type photoelectric smoke detectors (see 5:7, 4:2 of the:2005 edition); d) Deleted the slow developing fire response performance (see 3:8 of the:2005 edition); e) Change the constant humidity and heat (operation) test to the alternating humidity and heat (operation) test (see 5:12, 4:10 of the:2005 edition); f) Added requirements for the contamination alarm function of the sensing components of point-type photoelectric smoke detectors (see 5:15); g) The light source type of the flash device has been changed (see Appendix C, Appendix C of the:2005 edition): 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 Ministry of Emergency Management of the People's Republic of China: The previous versions of this document and the documents it replaces are as follows: ---First issued as GB 4715-1984 in 1984, first revised in:1993, second revised in:2005; ---This is the third revision: Point type smoke detector

1 Scope

This document specifies the classification, requirements, inspection rules and markings of point type smoke detectors and describes the corresponding test methods: This document applies to the design, manufacture and inspection of point-type smoke detectors used in industrial and civil buildings:

2 Normative references

The contents of the following documents constitute the 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 4716 Point-type heat-sensing fire detector GB/T 9969 General principles for instructions for use of industrial products GB 15631 Special fire detectors GB/T 16838 Environmental test methods and severity levels for fire protection electronic products GB/T 17626:2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test GB/T 17626:3 Electromagnetic compatibility test and measurement technology Radio frequency electromagnetic field radiation immunity test GB/T 17626:4 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test GB/T 17626:5 Electromagnetic compatibility test and measurement technology Surge (impact) immunity test GB/T 17626:6 Electromagnetic compatibility test and measurement technology - Immunity to conducted disturbances induced by radio frequency fields ISO 12103-1:2016 Pollutants for filter evaluation in road vehicles Part 1: Arizona test dust

3 Terms and definitions

There are no terms or definitions that require definition in this document:

4 Categories

4:1 According to the working principle, it can be divided into: a) Point-type photoelectric smoke detectors; b) Point type ionization smoke detector: 4:2 Point-type photoelectric smoke detectors can be divided into the following types according to their response threshold: a) Type A: Response threshold is adjustable; b) Type B: The response threshold is not adjustable:

5 Requirements

5:1 General requirements Point type smoke detectors (hereinafter referred to as detectors) shall meet the relevant requirements of this chapter and be tested in accordance with the provisions of Chapter 6 to confirm ......

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