Foundation grounding is a very good method for creating a complete grounding system. At the same time, it is very cheap. It must be remembered that the foundation itself plays an important role not only for the foundation of the building, but also for the entire electrical installation. For this reason, it is worth choosing a foundation grounding device that ensures maximum safety. It is worth learning how to make foundation grounding.
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How to properly perform foundation grounding?
Foundation earthing is most often a system of interconnected conductors that are placed in the concrete that is the foundation of a given building. It is important to remember that the concrete used for foundations must have a good resistivity of 200. Of course, you should also choose the right materials that are resistant to corrosion and have maximum strength. The elements are poured in concrete, just like the reinforcing bars. For the entire lightning protection system to function properly, the foundation grounding must be properly constructed. This provides protection against electric shock. Its implementation does not require additional earthworks, which also saves a lot of time.
The earthing elements are placed during construction works, after which the foundations are poured. Of course, the connections should be checked by an electrician. Photographic and descriptive documentation must also be used. Remember that the foundation must have reliable electrical contact with the ground. What does the word "reliable" mean here? This can be explained by saying that it must be sufficient and durable for the entire period in which the building is intended to be used. You can also use natural foundation grounding, where the elements are connected with each other with bonding wire. It is closed in a steel ring using a round bar or flat bar. Such a durable terminal connection ensures effective electrical conduction for many years.
What are the types of grounding in a lightning protection system?
We distinguish protective grounding, grounding in lightning protection and electrical installations, and grounding in telecommunications installations. The former uses integrated earthing systems, while the grounding of the electrical installation uses a third wire that runs next to the phase and neutral wires. At the same time, electrical sockets are combined into one system.
It is the end of the earth electrode. It should also be remembered that it must be buried to an appropriate depth so that the electric charge discharged into the ground does not pose a threat. It is also important to ground the telecommunications installation, which is performed to ensure proper operation of teleenergy devices connected to the distribution network. Protects the low voltage network against potential high voltage effects.
Ring and vertical grounding in an existing building
If no earthing was installed during construction, it can be done in the existing building. In this case, only ring and vertical grounding can be used. The former is made using a hot-dip galvanized steel strip. It must be buried to a depth of at least 0.5 m. At the same time, the excavation itself must be approximately 1 meter away from the foundation. If the distance were smaller, the stability of the building could be impaired.
Such an earth electrode should be a closed system. In addition, the trench should be deeper if it is also to provide surge protection. The vertical earth electrode should be driven vertically into the ground, with a depth of at least 3 meters. You need to choose a place where the humidity remains constant. At the same time, the distance between the electrodes should be the length of a rod stuck in the ground. They are made of pipes or specially prepared rods.
Materials for making an earth electrode are available at the Onninen installation wholesaler
In the Onninen installation wholesaler you can choose materials for making an earth electrode from the manufacturer Elko-Bis . Noteworthy is the Elko-Bis complete 3-meter OC earthing electrode . It is made of strong and reliable materials. It is worth knowing that you can increase its length, but also improve the grounding efficiency. It consists of a sharpened pin, an extension and a ground connector.
You can also choose the Elko-Bis 3-meter ELKONOMIC fi16 complete earthing electrode with hot-dip galvanization . In this case, you need to know that it ensures stable and effective fixing in the ground. It is suitable for both grounding and lightning protection installations. Because it is made of galvanized steel, it is extremely durable and resistant to corrosion and mechanical damage.
A good choice may also be the Elko-Bis ELKONOMIC 1.5-meter fi20 ground rod , which has similar properties. It is extremely solid and durable. It allows for effective embedding in the ground and at the same time ensures the stability of the installation.
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