Research & Development AT Active Shielding Solution
At NS Advanced Solutions, we specialize in addressing one of the most complex challenges in the field of environmental engineering: reducing human exposure to magnetic fields generated by high-voltage and extra-high-voltage power lines located near sensitive developments. Our engineering-driven solutions target two key scenarios:
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Mitigation of existing magnetic field exceedances in built environments
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Prevention of potential future exceedances during the planning and design phases
Proven Expertise in EMF Risk
Our engineering team brings decades of combined experience in non-ionizing radiation consulting, having conducted thousands of field measurements and risk assessments across a wide range of electrical infrastructures, including:
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Solar power and battery storage facilities
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Wind, gas, and steam turbine sites
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Thermo-solar generation plants
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Transformer rooms and electrical switchboards
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Medium, high, and extra-high voltage transmission lines
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Radiation impact studies for real estate and infrastructure projects
A Complex Problem Requires an Active Shielding Solution
Magnetic fields from power lines fluctuate constantly due to load variations, current direction, and network configuration. Unlike electric fields, low-frequency magnetic fields cannot be blocked passively – meaning a continuous, active solution is required.
Our response: a customized active magnetic shielding system designed to stabilize field levels and reduce exposure in sensitive zones.
From Theory to Field-Proven Technology
In collaboration with Dagesh Measurements Engineering & Consulting Ltd., and drawing on years of field data, we launched a dedicated R&D program that included over three years of theoretical study and laboratory testing.
We constructed a custom-built experimental site with simulated power infrastructure, allowing us to model real-world EMF behavior and validate the performance of our active shielding system under a wide range of operating conditions.
Project-Specific Engineering
Our active shielding systems are not off-the-shelf products. Each deployment begins with a feasibility study, followed by tailored engineering and field-calibrated design based on project-specific data. This approach ensures the best possible outcome — both technically and environmentally.
Driving Innovation Forward
We remain committed to advancing our R&D efforts to support the next generation of magnetic shielding technologies. Our goal is to provide accurate, reliable, and field-validated solutions that meet the highest regulatory and technical standards, with full adaptability to each client’s needs.
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What is an active magnetic shielding system?An active magnetic shielding system is an electronic system that includes sensors and current loops that can monitor the magnetic field levels in a specific area and produce an opposing magnetic field.
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What is the purpose of an active magnetic shielding system?The purpose of an active magnetic shielding system is to reduce magnetic field levels resulting from external electrical infrastructure (such as power lines) located in proximity to the area in interest, so that ultimately the equivalent magnetic field levels will meet the regulatory and/or the client's requirements.
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In what situations does an active shielding system solve a radiation problem?An active shielding system provides a solution to two main situations: Situations in which the desired areas have magnetic field levels that exceed the required exposure values, and situations in which due to the proximity of a project to external electrical infrastructures there is difficulty in obtaining construction permits and approval from the authorities because of a potential for exposure deviations. Given that there is feasibility for installing such a system, then it will provide a solution in terms of magnetic field levels from the electrical infrastructures.
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What are the benefits of an active protection system?The first benefit of an active system is the solution itself - there are many cases for which no alternative solution can be found. For example, in the case of an existing structure near an overhead power line that cannot be modified in any way. Another advantage is in terms of costs, the cost of an active system is significantly cheaper than the costs of burying an overhead high voltage power line. There is also the advantage of schedules, planning and building an active protection system will usually take a few months compared to the schedules for burying a high voltage power line, which can be in the order of years. An active system will also maximize the project area, with an emphasis on the areas intended for continuous occupancy and without expropriation due to radiation levels.
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In what situations is an active protection system less appropriate?The design of an active system will be adapted and designed in accordance with the characteristics of the overhead power lines and in accordance with the project outline. The more complex the interface between the power lines and the structure (different distances and angles), the more complex the system will be and may not provide a complete solution. An active shielding system may be less suitable in the case of a changing energy flow direction regime between the circuits, or it may be complex to implement, which can affect the cost of installation. However, it may still be a possible solution.
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How is it determined if an active shielding system is required?As stated, an active shielding system is a solution to a radiation problem. Usually because of at least one of two scenarios: First scenario - the problem already exists according to measured values in the project area. Second scenario - the problem can arise according to a magnetic field exposure survey, i.e. a survey of high voltage lines carried out towards the project. The survey examines the feasibility of the voltage lines to affect the project area at various electricity consumption scenarios and not only according to the current consumption status.
