JT/T 1461-2023 Configuration requirements for fire protection and control device of bus lithium Ion power battery pack
1 Scope
This standard specifies the basic requirements, technical requirements, configuration and installation requirements for fire prevention and control devices of bus lithium Ion power battery pack.
This standard is applicable to M2 and M3 buses that use lithium iron phosphate lithium-ion batteries as rechargeable energy storage devices. It may also be used as reference for other new energy buses applying lithium-ion batteries such as lithium manganate, lithium titanate and lithium manganese iron phosphate as rechargeable energy storage devices.
This standard is not applicable to bus applying ternary lithium-ion battery as rechargeable energy storage device.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2408-2008 Plastics - Determination of burning characteristics - Horizontal and vertical test
GB/T 4208-2017 Degrees of protection provided by enclosure (IP code)
GB 7258 Technical specifications for safety of power-driven vehicles operating on roads
GB/T 15089 Classification of power-driven vehicles and trailers
GB 15322.1-2019 Combustible gas detectors - Part 1: Point-type combustible gas detectors for industrial and commercial use
GB/T 18655-2018 Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers
GB/T 19596-2017 Terminology of electric vehicles
GB/T 19951-2019 Road vehicles - Disturbances test methods for electrical/electronic component from electrostatic discharge
GB 20517-2006 Independent smoke detection alarms
GB/T 21437.2-2021 Road vehicles - Test method of electrical disturbances from conduction and coupling - Part 2: Electrical transient conduction along supply lines only
GB/T 21437.3-2021 Road vehicles - Test method of electrical disturbances from conduction and coupling - Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
GB/T 28046.1-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 1: General
GB/T 28046.2-2019 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 2: Electrical loads
GB/T 28046.4-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 4: Climatic loads
GB 30122-2013 Self-contained heat detectors
GB 34655-2017 Specifications for extinguishing equipment arrangement in bus
GB 34660-2017 Road vehicles - Requirements and test methods of electromagnetic compatibility
GB 3803 1-2020 Electric vehicles traction battery safety requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15089, GB/T 19596, GB 34655, and the following apply.
3.1
fire protection and control device for lithium ion power battery pack
device that is fixedly installed on bus to detect, alarm and suppress battery electrolyte leakage, thermal runaway and fire in lithium ion power battery pack, and can maintain a certain suppression time
3.2
fire monitoring and warning device
device that is fixedly installed on bus to early monitor and alarm the thermal runaway and fire in lithium ion power battery pack
3.3
cooling type fire suppression device
device that is fixedly installed on bus to spray the suppression medium into the lithium ion power battery pack, thus to put out the fire, significantly reduce the battery temperature inside the lithium ion power battery pack, and maintain a certain suppression time
3.4
centralized configuration
configuration method that applies a set of fire prevention and control devices to prevent and control fires in multiple lithium ion power battery packs
3.5
distributed configuration
configuration method that applies a set of fire prevention and control devices to prevent and control fires in a single lithium ion power battery pack
4 General requirements
4.1 M2 and M3 buses (hereinafter referred to as "vehicles") that use lithium ion power batteries as rechargeable energy storage devices shall be equipped with fire protection and control device for lithium ion power battery pack (hereinafter referred to as "fire protection and control device").
4.2 The fire protection and control device equipped on vehicles shall consist of fire monitoring and warning device and cooling type fire suppression devices applying total flooding fire extinguishing method (hereinafter referred to as "fire suppression device").
4.3 Fire protection and control device shall comply with the requirements of the national market access system for fire protection products.
4.4 When the fire protection and control device is activated under normal usage conditions, it shall not pose a potential safety hazard to drivers and passengers.
4.5 The fire monitoring and warning device and the fire suppression device of the fire protection and control device should be supplied by the same manufacturer.
4.6 The maintenance cycle of the fire protection and control device shall not be shorter than that of the battery pack.
4.7 The product manual of the vehicle shall specify the usage and inspection methods of the fire protection and control device. The product manual provided by the manufacturer of fire protection and control devices shall specify the inspection methods and replacement cycles of the fire protection and control devices.
5 Technical requirements
5.1 Temperature
Contents
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Technical requirements
6 Configuration and installation
Annex A (Normative) Alarm performance test
Annex B (Informative) Typical applications of fire monitoring and warning device
Annex C (Informative) Typical applications of fire suppression device
