I. Overall Fire Protection System Design
1. System Composition
The system consists of pre-engineered, non-pressurized FK-5-1-12 (perfluorohexanone) fire suppression units, thermal aerosol fire suppression devices, audible and visual alarms, dual-function composite detectors, and a centralized data controller.
2. Equipment Deployment
(1) Battery Compartment
One BSP1000 composite detector installed at the top
One QRR0.15G/S-CFLC thermal aerosol fire suppression device installed at the top
(2) Electrical Compartment
One BSP1000 composite detector installed at the top
One YF0.5Q-CFLC FK-5-1-12 fire suppression device installed at the top
(3) PACK Compartment
One QRR0.144G/S-CFLC pulsed thermal aerosol fire suppression device installed in each PACK compartment
3. Energy Storage Cabinet
One CNS89 audible and visual alarm installed
(1) Interlocking Logic and Detector Responsibilities
BSP1000-2 Detector No. 1 is dedicated to monitoring the electrical compartment.
BSP1000-2 Detector No. 2 is dedicated to monitoring the battery compartment.
Both detectors communicate continuously with the centralized data controller.
The data controller uploads real-time operational data to the BMS, including detector alarm status.
When the BSP1000 in the electrical compartment reaches a Level 2 alarm, the audible and visual alarm is activated; when it reaches a Level 3 alarm, the YF0.5Q-CFLC FK-5-1-12 fire suppression device is activated.
When the BSP1000 in the battery compartment reaches a Level 2 alarm, the audible and visual alarm is activated; when it reaches a Level 3 alarm, the QRR0.15G/S-CFLC thermal aerosol fire suppression device is activated.
Each PACK module may be equipped with a QRR0.144G/S-CFLC device, which uses temperature-sensing automatic activation. When the temperature reaches 170 °C ±10 °C, the device activates automatically. After activation, the feedback component reports the activation status.
(2) Fire Suppression System Performance Requirements
Protection Configuration:
PACK compartment: Pulsed thermal aerosol fire suppression device (QRR0.144G/S-CFLC)
Battery compartment: Thermal aerosol fire suppression device (QRR0.15G/S-CFLC)
Electrical compartment: FK-5-1-12 fire suppression device (YF0.5Q-CFLC)
Alarm and Control Logic
Level 1 Early Warning:
Smoke ≥ 0.55 dB/m
Internal sampling frequency reduced from 12 s to 6 sLevel 2 Early Warning:
Temperature ≥ 75 °C
Audible and visual alarm activated; fire protection power-off signal sent to the BMS via the data controllerLevel 3 Alarm:
Smoke ≥ 1.0 dB/m and Temperature ≥ 75 °C
24 V electrical signal output to activate the fire suppression device
Cable Requirements:
Power supply cables: RVVSP 2 × 1.5 mm² flame-retardant cables
Communication cables: RVVSP 2 × 2 × 1.5 mm² twisted, shielded, flame-retardant / fire-resistant cables
4. Key Product Parameters
(1) FK-5-1-12 Fire Suppression Device for Electrical Compartment (YF0.5Q-CFLC)
Dimensions: 340 × 60 × 60 mm
Agent charge: 0.5 kg
Discharge time: ≤ 10 s
Activation conditions: Current ≥ 700 mA or temperature 180 °C ±10 °C
Operating temperature: 40–70 °C
(2) Pulsed Thermal Aerosol Fire Suppression Device for PACK Compartment (QRR0.144G/S-CFLC)
Dimensions: 155 × 104 × 16 mm
Net weight: 380 ±30 g
Protected volume: 1.5 m³
Service life: 10 years
Activation modes: Thermal activation (170 °C ±10 °C) or electrical activation
Discharge time: ≤ 10 s
(3) Thermal Aerosol Fire Suppression Device for Battery Compartment (QRR0.15G/S-CFLC)
Dimensions: 255 × 66 × 46 mm
Fire suppression density: 100 g/m³
Protected volume: 1.5 m³
Service life: 10 years
Activation modes: Thermal or electrical activation (current ≥ 700 mA or temperature ≥ 170 °C)
Discharge time: ≤ 20 s
(4) Composite Detector (BSP1000)
Functions: Real-time monitoring of fire hazards in lithium battery enclosures
Power supply: DC 9–30 V
Features: Flexible installation
(5) Audible and Visual Alarm (CNS89)
Power supply: DC 24 V
Sound pressure level: 75–115 dB
Dimensions: 134 × 114 × 50 mm
(6) Centralized Data Controller
Functions: Receives data from detectors and the BMS; controls and interlocks audible and visual alarms and other devices
Communication interfaces: RS485 / CAN
Operating voltage: DC 24 V (wide range 9–30 V)
Operating temperature: –20 to +85 °C
