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GB 14287.7-2025: Electrical fire monitoring system - Part 7: Current limiting protector for electric fire prevention
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Electrical fire monitoring system - Part 7: Current limiting protector for electric fire prevention
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Basic data
Standard ID: GB 14287.7-2025 (GB14287.7-2025)
Description (Translated English): Electrical fire monitoring system - Part 7: Current limiting protector for electric fire prevention
Sector / Industry: National Standard
Classification of Chinese Standard: C81
Classification of International Standard: 13.220.20
Word Count Estimation: 26,230
Date of Issue: 2025-10-31
Date of Implementation: 2026-11-01
Issuing agency(ies): State Administration for Market Regulation and Standardization Administration of China
GB 14287.7-2025: Electrical fire monitoring system - Part 7: Current limiting protector for electric fire prevention
---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 the People's Republic of China
Electrical fire monitoring system
Part 7.Electrical Fire-Proof Current-Limiting Protective Devices
Published on 2025-10-31
Implemented on 2026-11-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
Introduction IV
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4 Requirements 2
4.1 General Requirements 2
4.2 Packaging and Appearance 2
4.3 Basic Functions 2
4.4 Alarm Performance 3
4.5 Non-operational performance 3
4.6 Repeatability 3
4.7 Voltage fluctuation 3
4.8 Climate and Environmental Tolerance 3
4.9 Mechanical environmental tolerance 4
4.10 Electromagnetic compatibility performance 5
4.11 Insulation resistance 5
4.12 Electrical strength 6
4.13 Instruction Manual 6
5.Test Methods 6.
5.1 General Requirements 6
5.2 Basic Function Check 7
5.3 Alarm Performance Test 8
5.4 Non-operational performance test 9
5.5 Repeatability Test 9
5.6 Voltage Fluctuation Test 9
5.7 Low Temperature (Operation) Test 10
5.8 Constant humidity and heat (operation) test 10
5.9 Impact (Operation) Test 10
5.10 Collision (Operation) Test 11
5.11 Vibration (Sine) (Running) Test 11
5.12 Vibration (Sine) (Durability) Test 11
5.13 Radio Frequency Electromagnetic Field Radiation Immunity Test 11
5.14 Conducted Interference Immunity Test Based on Radio Frequency Field Induction 12
5.15 Electrostatic Discharge Immunity Test 12
5.16 Electrical Fast Transient/Bulk Immunity Test 12
5.17 Surge (Impulse) Immunity Test 12
5.18 Insulation Resistance Test 13
5.19 Electrical strength test 13
6.Inspection Rule 13
6.1 Factory Inspection 13
6.2 Type Testing 13
7.Mark 14
7.1 Product Marking 14
7.2 Quality Inspection Mark 14
Appendix A (Normative) Casing Flammability 15
A.1 Requirement 15
A.2 Experiment 15
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 7 of GB 14287 "Electrical Fire Monitoring Systems". GB 14287 has the following parts published.
---Part 1.Electrical Fire Monitoring Equipment;
---Part 2.Residual Current Type Electrical Fire Monitoring Detector;
---Part 3.Temperature-measuring electrical fire monitoring detectors;
---Part 4.Fault Arc Detectors;
---Part 5.Measurement of Pyrolytic Particle Electrical Fire Monitoring Detectors;
---Part 7.Electrical Fire Protection Current Limiting Protectors
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the State Fire and Rescue Administration.
Introduction
With the rapid development of modern society and the continuous improvement of people's living standards, electricity consumption has increased significantly, leading to frequent electrical fire accidents.
Electrical fires can cause incalculable losses. To reduce the incidence of electrical fires and prevent or minimize losses, electrical fire monitoring systems are used.
Monitoring and early warning of electrical fires plays a vital role. Unlike fire detection and alarm systems, electrical fire monitoring systems belong to...
The main function of a fire early warning system is to detect potential electrical fire hazards as early as possible, preventing electrical fires caused by electrical faults, hidden dangers, and other risk factors.
Fire.
With the development of electrical fire monitoring and detection technology, relevant domestic institutions have developed electrical fire protection current-limiting protectors and other electrical fire monitoring technologies.
This product, as a crucial component of electrical fire monitoring systems, is used for electrical fire prevention and control. Based on technological innovation and industrial application needs, there is an urgent need to develop...
Establish the national standard "Electrical Fire Monitoring System Part 7.Electrical Fire Protection Current Limiting Devices" to improve the GB 14287 standard system.
By establishing standardized documents, manufacturers and users of electrical fire monitoring system products can better conduct product design and production.
Activities such as usage can improve the application effect of electrical fire monitoring systems and better promote trade, exchange and technological cooperation.
This document standardizes the technical requirements and testing methods for electrical fire-resistant current-limiting protective devices, guiding industry players in product design and production.
Production, inspection, and engineering applications enhance the effectiveness of electrical fire monitoring systems, providing technical support for international trade, technological exchange, and collaborative industrial innovation.
Technical standards.
GB 14287 "Electrical Fire Monitoring Systems" is the basic standard guiding the production, inspection, and use of electrical fire monitoring system products in my country.
The standard is composed of nine parts.
---Part 1.Electrical Fire Monitoring Equipment. The purpose is to standardize the general technical requirements for electrical fire monitoring equipment products and improve production efficiency.
Product quality.
---Part 2.Residual Current Type Electrical Fire Monitoring Detectors. The purpose is to standardize residual current type electrical fire monitoring detectors.
General technical requirements for products, to improve product quality.
---Part 3.Temperature-Sensing Electrical Fire Monitoring Detectors. The purpose is to standardize the use of temperature-sensing electrical fire monitoring detectors.
Use technical requirements to improve product quality.
---Part 4.Arc Fault Detectors. The purpose is to standardize the general technical requirements for arc fault detector products and improve product quality.
quality.
---Part 5.Measurement of Pyrolytic Particle Electrical Fire Monitoring Detectors. The purpose is to standardize the measurement of pyrolytic particle electrical fire monitoring detectors.
General technical requirements for control detector products to improve product quality.
---Part 6.Harmonic Suppression Electrical Fire Monitoring Devices. The purpose is to standardize products related to harmonic suppression electrical fire monitoring devices.
General technical requirements to improve product quality.
---Part 7.Electrical Fire-Resistant Current-Limiting Protective Devices. The purpose is to standardize the general technical requirements for electrical fire-resistant current-limiting protective devices.
The goal is to improve product quality.
---Part 8.Measurement of Spark-Type Electrical Fire Monitoring Detectors. The purpose is to standardize the measurement of spark-type electrical fire monitoring detectors.
General technical requirements for measuring instruments to improve product quality.
---Part 9.Electrical Fire Monitoring Detectors Based on Insulation Performance. The purpose is to standardize electrical fire monitoring detectors based on insulation performance.
General technical requirements for control detector products to improve product quality.
Electrical fire monitoring system
Part 7.Electrical Fire-Proof Current-Limiting Protective Devices
1 Scope
This document defines the terminology for electrical fire-resistant current-limiting protective devices, specifies the requirements, inspection rules, and markings, and describes the corresponding tests.
method.
This document applies to the design, manufacture, and application of electrical fire-prevention current-limiting protective devices (hereinafter referred to as "protective devices") in electrical fire monitoring systems.
test.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 9969 General Rules for Instructions for Use of Industrial Products
GB 12978 Inspection Rules for Fire Protection Electronic Products
GB/T 16838 Environmental testing methods and severity levels for fire protection electronic products
GB/T 17626.2 Electromagnetic compatibility testing and measurement techniques - Electrostatic discharge immunity test
GB/T 17626.3 Electromagnetic compatibility testing and measurement techniques – Part 3.Radio frequency electromagnetic field radiated immunity testing
GB/T 17626.4 Electromagnetic compatibility testing and measurement techniques - Electrical fast transient/burst immunity test
GB/T 17626.5 Electromagnetic compatibility testing and measurement techniques - Surge (impulse) immunity test
GB/T 17626.6 Electromagnetic compatibility testing and measurement techniques - Conducted disturbance immunity induced by radio frequency fields
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
A protective device that limits current in the event of a short circuit or overload in the protected circuit.
3.2
Rated current
The maximum current value that the protector can continuously and safely pass under normal operating conditions.
3.3
The minimum current that can trigger the short-circuit protection of the protector.
3.4
The minimum current that can trigger the overload protection of the protector.
......
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