Electromagnetic Field Management & Mitigation

 

When electromagnetic field levels are elevated, VitaTech offers ELF magnetic field management as an option to reduce exposure and potential EMI problems. Elevated electromagnetic fields are produced by various sources: transmission and high current distribution lines, substations, transformers, secondary feeders, switchgears, busways and risers, electrical panels, grounding systems, plumbing currents, wiring loops and subpanel feeders (NEC violations), office equipment, shop tools, and machinery. Magnetic field management begins with a ELF EMF Contour Survey of the site that includes a detailed assessment of the electrical sources and the resultant magnetic field characteristics (magnitude, polarization, harmonic content, temporal and spatial variations). After the assessment, VitaTech considers the various magnetic field management strategies available (see below) and prepares a final recommendation with estimated mitigation costs:

• Magnetic Shielding - reduces emissions from electrical sources and
  equipment with aluminum/copper, low carbon steel, silicon-iron & nickel-iron (mumetal) enclosures and barriers
• Active & Passive Magnetic Field Cancellation Systems - protect rooms, whole buildings (including homes) and exposed property (playgrounds) from outside distribution and transmission lines
• Simulations & Profiles - define safe limits and distances from EMF sources, also known as prudent avoidance
• Detection, Control & Mitigation - EMI/RFI sources, NEC violations & potentially lethal electrical shorts, plumbing & ground currents

Upon client approval of our magnetic field management recommendation & quote, Vitatech Engineering prepares a detailed engineering design and project management schedule, implements corrective measures, manages subcontractors, and provides a final ELF EMF survey to verify the results.