Electromagnetic Fields 1996

Statistical Base

The electromagnetic field strengths shown here are derived from measurements and calculations relating to selected field sources with frequencies from 0 to 500 Hz, collected during the project to create an “Emission Register for Low-Frequency Electric and Magnetic Field Exposure in Berlin” (Koffke et al. 1995, Stenzel et al. 1996, Frohn et al. 1995, Skurk et al. 1996, Frohn et al. 1996).

The project was supported by: Berliner Kraft- und Licht-Aktiengesellschaft (BEWAG), Senatsverwaltung für Gesundheit, Senatsverwaltung für Stadtentwicklung, Umweltschutz und Technologie, VEAG – Vereinigte Energiewerke Aktiengesellschaft.

The following districts of Berlin were observed:

    • Berlin-Buch/Karow

    new residential blocks near high-voltage overhead lines and railroad

    • Berlin-Charlottenburg

    S-Bahn (rapid transit railtrack) and railroad in the city area

    • Berlin-Hellersdorf /
      -Marzahn /

    residential and mixed areas with a high proportion of high-voltage overhead lines

The following field sources were taken into account:

  • 110 kV, 220 kV, 380 kV high-voltage overhead lines
  • 110 kV underground transmission cables
  • transformer station at Karow
  • 10 kV medium voltage stage
  • 1 kV system
  • substations
  • railroad
  • S-Bahn

A complete description of all tests can be found in the References (FGEU 1994, FGEU 1995, FGEU 1996, Frohn et al. 1996, Koffke et al. 1995, Stenzel et al. 1996).

The maps were based on plane table drawings (scale 1 : 10 000) from the Berlin Department of Construction and Housing. For the high-voltage overhead lines, underground cables and substations, grid maps were additionally provided by the power utilities (Bewag and VEAG), and these were used to correct deviations.

All maps were completely digitized and converted to vector format. The operating data for installations run at 50 Hz were also provided by the power utilities, and their projection files supplied the information on pylon design, pylon heights and minimum ground clearance at the centre of pylon fields.

The data for railtrack calculations (railroad and S-Bahn) were drawn from literature and plane table drawings, as there was no information from the operators. Feeder points and other special features have, therefore, not been considered. The precise course of the railtrack is traced with a horizontal deviation of ± 10 m.