Surge protection for applications in buildings
Modern, multifunctional buildings place high demands on energy efficiency, comfort and safety. Reliable operation of the technical building equipment is essential to fulfil these requirements. System failures, the failure of electrical or electronic devices and potential hazards must be recognised and prevented at an early stage. Protective measures against transient overvoltages ensure that supply structures in buildings function stably and safely.
Protective solutions for technical building equipment
We keep an eye on the entire technology: from fire alarm systems and safety functions to the protection of people and systems and offer comprehensive protection solutions against lightning damage and surges. Learn about our range of products for the safe operation of applications in buildings and protect people, systems and investments.


The hospital – the stand-out among multifunctional buildings
The hospital occupies a special position among complex and multifunctional buildings. Failure can have serious consequences, both for the health of individuals and for the stability of the healthcare system as a whole.
In order to conserve resources and optimise consumption, all building technology components are coordinated with each other. Heating, ventilation and air-conditioning (HVAC) and sanitary technology – everything is networked and interdependent via measurement and control technology. Even the failure of a single component therefore often leads to a chain reaction. This is particularly true when it comes to smart buildings. Comprehensive protective measures against lightning currents and surges are an important component in the overall concept of building safety.
The principle of protecting people and keeping facilities available also applies to all types of multifunctional buildings such as railway stations, airports, data centres and more. A hospital is the example we use below to illustrate our protection solutions.
Optimum protection for technical building equipment
In order to conserve resources and optimise energy consumption, all components of the technical building equipment are coordinated with each other. Heating, ventilation, air-conditioning or sanitary technology – everything is networked via measurement and control technology or building automation. The failure of a single component therefore often leads to a chain reaction. Comprehensive protective measures against lightning currents and surges are an important component in the overall concept of building safety.
Protection solutions
Fire detection technology
It is crucial for building constructors and planning engineers to consider the protection of fire alarm systems at an early stage. Lightning and surge protection is an important part of preventive fire protection and is essential to ensure the functionality and availability of fire alarm systems.
Consider surge protection in your planning in good time – we will help you with this.
Measurement and control technology
Building automation and measuring and control equipment controls, regulates, monitors and optimises all technical building processes.
The technology is based on a multitude of interlinked components, such as building management, communication, control and safety systems. The protection of these systems is important, as most of them consist of sensitive electronics.
With surge protection for measurement and control technology, you can safeguard processes as well as the availability of systems.
Technical equipment and server rooms
A needs-based data infrastructure is the basic prerequisite for modern buildings. But, at the same time, a high degree of networking also means that the failure of individual, central components can bring the entire system to a standstill. In addition to effective spatial shielding, a coherent surge protection concept is required for power supply and communication lines in the sub-distribution board.
With our protection solutions, you can protect terminal equipment from surge damage and prevent the loss of data.
Safety equipment and system availability
In a hospital, a power failure is immediately life-threatening for patients in the operating theatre, with artificial respiration or other life-sustaining measures. Therefore, the top priority is system availability. The active arc fault protection system DEHNshort supports your system concept and reduces downtime resulting from arc faults to a minimum.
DEHNshort protects your team working on electrotechnical installations and ensures the availability of your systems. Learn more about DEHNshort!
PV installations
One of the most common forms of photovoltaic systems is the rooftop system. Due to its exposed position, it is particularly prone to damage caused by direct and indirect lightning effects. Surge damage due to thunderstorms is one of the most frequent causes of damage to photovoltaic (PV) systems. That is why lightning and surge protection should be incorporated at the design stage of PV systems – because retrofitting is much more expensive and time consuming.
Our protective measures increase the availability of your systems. We can advise you on our protection solutions for photovoltaic systems.
E-mobility
Lightning effects and surges pose a risk for the sensitive electronics of the charging systems and the vehicles themselves. In the event of a thunderstorm, the sensitive electronic circuitry of the control, meter and communication systems is particularly susceptible. Networked charging points can be completely destroyed by a single lightning strike. Surges during the charging process can damage not only the charging post, but also the electric vehicle connected to it.
With our protection solutions for the charging infrastructure, you can protect the charging equipment and electric vehicles from costly damage.
Safely standard-compliant
- Our solutions and products are standard-compliant. Learn more about the requirements and how you can meet them with our solutions.
- Further specifications on the safety of people, animals and technology are contained in the IEC 62305 series of standards, as well as national standards, regulations and laws.
Downloads
DEHN protects technical building equipment
Safety for modern buildings
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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 standards-compliant.
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.