EPS Fire Emergency Power Supply: The “Power Lifeline” in Fires Safeguarding Building Safety

Technical Principle: Dual-Safety Mechanism Enables Seamless Switching
The EPS fire emergency power supply comprises core components including a charging module, battery bank, inverter, and control unit, employing a dual-mode design of “mains priority + inverter backup.” Under normal conditions, the system maintains full battery charge via an intelligent charger while continuously monitoring mains power quality. Upon detecting voltage fluctuations exceeding ±15% or complete power loss, the control unit instantly activates the inverter to convert DC to AC, completing the power supply switch within 0.1-0.25 seconds. This speed far exceeds the 5-15 second startup delay of traditional diesel generators, fully meeting the mandatory standard of “power transfer time ≤ 5 seconds after interruption” for fire emergency lighting and evacuation signage systems.

Furthermore, the EPS employs IGBT inverter technology to deliver pure sine wave current, ensuring stable operation of precision equipment such as fire alarm controllers and emergency broadcast systems. Utilizing lithium iron phosphate batteries as the energy storage medium, the EPS system can sustain power supply for over 90 minutes at full load. This coverage meets the 30-90 minute emergency duration required by the Building Design Fire Protection Code, providing reliable protection for scenarios including high-rise buildings and underground spaces.

Application Scenarios: Multi-dimensional Security Barriers
Evacuation Lighting System: In smoke-filled environments, EPS-powered intelligent evacuation signs dynamically adjust escape routes. For instance, during a fire at a Beijing commercial complex, centrally controlled signage powered by EPS guided over 800 people to safely bypass the fire zone, boosting evacuation efficiency by 40%.
Smoke Control System: A case study by the Shanghai Fire Research Institute demonstrated that EPS-maintained smoke exhaust fans maintained stairwell visibility above 3 meters during a high-rise apartment fire, reduced critical pathway temperatures by 12°C, and effectively suppressed the “chimney effect.”
Firefighting Equipment Power Supply: During a fire at a Guangzhou data center, the heptane gas fire suppression system backed by an EPS completed three agent discharges after power loss, preventing damage to equipment worth over 100 million yuan.
Critical Facility Protection: “N+1” redundant EPS configurations are deployed in scenarios like hospital operating rooms and nuclear power plant control rooms. A case study from a Shenzhen tertiary hospital demonstrated that its operating room EPS sustained power to extracorporeal circulation machines for 127 minutes during a circuit failure, saving the lives of two cardiac surgery patients.