Lightning and surge protection for wastewater treatment plants
Sewage plants are classified as critical infrastructure. They operate around the clock and work within complex, distributed systems that rely heavily on energy supply, automation and communication. Their failure has a direct impact on supply, the environment and public safety.
Lightning and surge protection are therefore essential for ensuring reliable supply, managing risks and maintaining long-term operational stability.
With DEHN, you can rely on a partner who provides comprehensive protection for your system – from planning to implementation, in full compliance with standards and with complete reliability.
Risks associated with water and wastewater treatment plants
With their large footprint and often exposed open-air location, water and wastewater facilities are particularly vulnerable to the effects of direct or nearby lightning strikes, as well as switching operations.
Surges can enter the system via power and data cables. They spread via supply lines, extensive cabling and communication interfaces, causing malfunctions and damage to key components of the system.
Typical effects on operations:
- Failure of pumps and drive units
- Implausible measured values (e.g. for flow rate, fill levels or water quality)
- Process control faults
- Interruptions in remote monitoring
- Occurrence of ignition sources in hazardous areas
Malfunctions can also result in wastewater not being treated properly or in limit values being exceeded.
This requires a comprehensive protection strategy
Safely standard-compliant
In addition to local technical rules for hazardous substances, the following standards are relevant for lightning and surge protection in water and wastewater treatment plants:
- IEC 62305 (lightning protection standard)
- IEC 60079 (standard for explosion protection)
- DIN EN 1127 (risk assessment)
Downloads
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Our services
We can provide support for your project from the planning to the implementation and beyond. Take advantage of our wide range of practical tools and services.
We create the entire lightning protection concept – from the risk analysis and earthing simulation to budget planning – all precisely tailored to your project and standard-compliant.
With DEHNrisk, you can determine the lightning risk for structures comprehensively, quickly and precisely. The web-based application helps to determine the class of LPS and other necessary measures.
Design the external lightning protection and earthing systems for your project in accordance with DIN 18014 and IEC 62305-3. The program automatically creates a bill of materials for further use.
