Earthing and equipotential bonding for lightning protection installations
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Grounding and equipotential bonding for lightning protection systems - key safety elements
Grounding and equipotential bonding systems are the foundation of effective lightning protection. Their role is to safely conduct lightning current to the ground. Properly selected components provide protection for people and property from the effects of atmospheric discharges. Our offer includes a wide selection of elements for the construction of complex installations.
Customers often ask us about the differences between the various types of grounding. We distinguish foundation, rod and strip grounding. Each has its advantages and areas of application. Foundation grounding works well in new buildings. Rod grounding is used when space is limited. Strip grounding provides a large contact surface with the ground.
Key components of grounding and bonding
The complete installation consists of many elements. The most important ones include:
- Potential equalization rails
- Grounding strap clamps
- Industrial equalization rails
- Equipotential rails for Ex zones
- Distribution blocks
- Grounding straps
- Stainless steel flat bars
- Mounting brackets
- Expansion connections
Potential equalization rails play a key role in the lightning protection system. They provide a connection of all conductive elements. Thanks to this, they equalize the electrical potentials throughout the facility. Our offer includes rails in various sizes and material versions.
Grounding strap clamps are used to connect large diameter elements. They are useful for grounding tanks, pipelines or steel structures. They are made of corrosion-resistant materials, which ensures the durability of the connections.
Selection of grounding and equipotential bonding to suit the specific nature of the facility
The right choice of system components depends on many factors. The type of protected facility is crucial. Different solutions are used in residential buildings and different in industrial facilities. The ground and climate conditions in a given location are also important.
In the case of objects at risk of explosion, special equalisation rails for Ex zones are used. They provide safety in places where there is an explosive atmosphere. They are made of non-sparking materials and have the appropriate certificates.
We recently completed a project for a large manufacturing plant. It required a comprehensive approach to lightning protection. We used a foundation grounding system connected to a grounding grid. The key was to properly connect all the metal elements of the structure.
In the case of office reorganization, it is most often necessary to modify the existing installation. This involves adding new equalization connections. We then use flexible compensation connections. They ensure electrical continuity while maintaining freedom of movement of the structure.
Professional brands of grounding and equipotential bonding in the Onninen offer
In our assortment you will find products from renowned manufacturers. We offer solutions from brands such as:
- Oh Bettermann
- Km Thunder
- Dehn
- Tritite
- Room
We pay special attention to the quality and reliability of the products we offer. All elements undergo rigorous testing and have the necessary certificates. This guarantees their long-term and failure-free operation in the most demanding conditions.
Our experience shows that a comprehensive approach is key. That is why we offer not only individual components, but also complete sets. This allows for efficient implementation of even complex lightning protection installations.
In everyday practice, we see how important expert advice is when selecting elements. Our specialists are happy to share their knowledge and experience. They help in the optimal selection of solutions for specific needs and conditions.
Many customers ask us about the possibilities of modernizing existing installations. In such cases, we conduct a detailed analysis of the current state. On this basis, we propose optimal solutions, taking into account the latest safety standards.
Onninen recommends the use of comprehensive grounding and equipotential bonding systems. They provide the highest level of lightning protection. At the same time, they guarantee compliance with applicable standards and regulations. We invite you to contact our advisors who will help you choose the optimal solutions.









































