Secondary containment trays: protecting industrial and electrical sites
Secondary containment trays are essential safety devices designed to prevent environmental contamination caused by oil or chemical leaks. In electrical substations, industrial facilities, and renewable energy plants, transformers and equipment often contain large quantities of dielectric oil. Without proper containment, leaks or spills can lead to soil and water pollution, costly clean-up operations, and serious regulatory penalties.
A well-designed secondary containment tray acts as a protective barrier, capturing accidental discharges before they spread to the environment. They are widely used across industries to comply with environmental standards, ensure operational safety, and safeguard valuable infrastructure.
Summary
How important are secondary containment trays?
Secondary containment trays are essential safety assets in facilities housing electrical transformers and other oil-filled equipment. Their importance goes beyond basic containment, providing a robust technical safeguard that addresses environmental, regulatory, and operational challenges.
- Environmental protection: designed with high dielectric oil retention capacity, containment trays prevent hazardous oils and hydrocarbons from seeping into the soil or groundwater, ensuring long-term environmental safety.
- Regulatory compliance: strict international regulations prohibit the discharge of contaminated rainwater or transformer oil into natural ecosystems. Secondary containment trays support compliance by offering full-volume retention and controlled drainage, often integrated with filtration or monitoring systems.
- Operational reliability: by managing leaks and preventing water ingress, containment trays protect sensitive transformer components. When paired with fire suppression mechanisms, they also reduce the risk of fire propagation caused by oil ignition.
- Cost efficiency: beyond avoiding environmental fines, secondary containment trays limit downtime by isolating oil leaks, minimizing equipment damage, and simplifying maintenance operations.
These trays are engineered not only to contain spills but also to integrate seamlessly with advanced fire suppression systems and filtration devices, making them a cornerstone of transformer safety management.
Akhelec’s secondary containment tray solutions
Akhelec specializes in environmental protection for electrical and industrial sites, offering a wide range of secondary containment trays and bund systems. Each solution is engineered for specific applications.
→ The BAF® fire suppression containment bunds combine a retention tray with a natural fire suppression device. They capture dielectric oil leaks while automatically extinguishing flames without the use of chemical additives, ensuring both environmental protection and fire safety in transformer areas.
→ For larger or more complex installations, the BAFX® modular containment bunds with fire suppression provide a scalable solution. Their modular design allows flexible installation, while the integrated fire suppression mechanism ensures reliable oil spill retention and effective fire control in power plants and high-voltage substations.
→ The BWR® multi-shape welded containment bunds are built for durability and adaptability. Fully welded and customizable, they guarantee high oil retention capacity and can be shaped to fit a wide range of transformer configurations, making them particularly effective for outdoor applications.
→ For heavy-duty industrial settings, the BRX® modular steel containment bunds are engineered from high-strength steel to provide long-lasting containment performance. They are ideal for large-scale operations where robust and reliable oil retention is critical.
→ When temporary solutions are required, the BSTUB® tubular containment trays offer quick deployment and flexibility. Made from oil- and chemical-resistant materials, they are perfect for short-term storage or transformer maintenance activities.
→ Finally, BCAM® containment bunds for heavy goods vehicles help to mitigate the risk of accidental oil spills when vehicles are parked or undergoing maintenance. It works with a special lining that is resistant to oil products and most chemical substances.
Questions related to secondary containment bins
A secondary containment tray prevents oil, chemical, or hazardous liquid leaks from spreading into the environment by capturing and retaining them safely.
They are used in transformer stations, industrial plants, renewable energy facilities, and during transfer of hazardous liquids.
Yes, properly designed trays help meet international regulations that prohibit contaminated water and oil from entering soil and waterways.
Yes. Solutions such as Akhelec’s BAF® and BAFX® integrate natural fire suppression systems, offering both oil retention and fire safety in one device.
Conclusion
Secondary containment trays are a vital safeguard for industries handling oil-filled transformers and hazardous liquids. By investing in Akhelec’s advanced solutions—from welded trays to modular and transport-ready systems—operators can ensure environmental protection, regulatory compliance, and operational reliability.