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GB 4715: Evolution and historical versions
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Point-type smoke detectors using scattered light, transmitted light or ionization
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| GB 4715-2005 | English | 879 |
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Smoke detectors -- Point detectors using scattered light, transmitted light or ionization
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Technical requirements and test methods for point type smoke fire detectors
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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| Older Standard (superseded by this standard) | GB 4715-2005 |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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