Newsroom
Outdoor energy storage systems must deliver unwavering safety across diverse climates and real-world conditions. To support high-voltage and large-capacity applications, PYTES equips its outdoor energy storage cabinets with an advanced five-layer fire protection architecture. This multi-stage safety system is designed to provide early detection, hazard mitigation, suppression capability, structural protection, and emergency response access—all working in concert to ensure stable and reliable operation throughout the cabinet’s lifetime.
The first layer establishes a foundation of proactive awareness.
PYTES incorporates sensors capable of detecting:
Temperature changes inside the cabinet
Smoke that may indicate abnormal thermal activity
Gas presence related to internal battery conditions
By combining heat, smoke, and gas sensing, the system enhances the cabinet’s ability to identify irregularities at an early stage, supporting timely intervention before conditions escalate.
When the internal environment requires stabilization, the cabinet’s ventilation structure helps regulate airflow and remove accumulated gases.
This layer is designed to:
Promote the discharge of internal gases
Assist with temperature control
Reduce the likelihood of internal gas concentration
Maintain a safer internal environment during varying operational conditions
The ventilation design contributes to the cabinet’s overall thermal stability, especially in outdoor applications where environmental temperatures can fluctuate widely.
For immediate flame suppression, the energy storage cabinet features a built-in automated aerosol fire suppression module. Its working principle involves releasing ultrafine particles to efficiently inhibit the combustion chain reaction, enabling rapid fire extinguishment. This technology is particularly suitable for enclosed spaces and offers the following advantages:
Rapid dispersion throughout enclosed spaces
Effective suppression without requiring a built-in water network
Compact physical size suitable for cabinet installations
It serves as a vital safeguard, providing precise and autonomous fire suppression directly at potential sources.
In the event of abnormal internal pressure rise, the cabinet incorporates an explosion relief plate as part of its mechanical safety design.
This structural component:
Helps release excess internal pressure in a controlled manner
Reduces the risk of uncontrolled structural deformation
Enhances safety for equipment and surrounding areas
The incorporation of a pressure relief vent effectively reduces the risk of structural damage from sudden cabinet overpressure under extreme fault scenarios, such as battery thermal runaway.
As an additional emergency measure, the cabinet provides an external fire-fighting port.
This feature enables responders to:
Access the cabinet’s interior for fire-fighting purposes
Apply cooling or suppression measures from outside
Improve operational safety during emergency intervention
Its presence offers further support for managing critical thermal events when external action is required.
PYTES’ five-layer fire protection system delivers a comprehensive safety framework for outdoor battery energy storage cabinets.
Through its combination of multi-point detection, ventilation support, aerosol suppression, structural pressure management, and emergency-access capability, the cabinet is engineered to maintain safe and stable operation under demanding outdoor conditions.
This multi-layer design helps strengthen long-term reliability, improve operational continuity, and enhance overall safety for high-voltage outdoor energy storage applications.
