Miscellaneous - Geri, Nicosia

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This report was prepared by the Electromagnetics and Novel Applications Laboratory of the University of Cyprus within the framework of measuring and assessing the electric and magnetic field levels by AC power systems at the area of interest:

·         Substation S/S 9542 “MICHAEL KETONIS PLOTS” in close proximity with plot at Geri area Nicosia, on the 09/02/2021 from 14:30 until 15:15.

The measurements were performed according to the measurements of low-frequency magnetic and electric fields with regard to exposure of human beings (IEC 61786:1998) and measurement procedures with regard to public exposure (IEC 62110:2009). More specifically, three-point measurements were performed to assess the fields (assuming non-uniform fields) in the range of 5 Hz – 32 kHz using the EFA-300 Isotropic Field Analyser. The measurements were performed at the position of interest at three heights 0.5 m, 1.0 m and 1.5 m. above the ground or floor level of the building. Beside power equipment or in a building, measurement was performed at a horizontal distance of 0.2 m from its surface or boundary wall. It is important to note that in this investigation additional point measurements were taken at locations indicated by the customer (non-standardized measurements outside the measurement procedures with regard to public exposure (IEC 62110:2009).

The recorded measurements were compared to the reference levels described in the Council Recommendation of 12th July 1999 on the limitation of exposure of the general public to electromagnetic fields (0 Hz to 300 GHz), 1999/519/EC. Respect to the recommended reference levels will ensure respect to the basic restrictions. The reference levels of exposure provided in 1999/519/EC are in accordance to the Cypriot Legislation.

The maximum magnetic field values measured at the area of interest are summarized in the following Tables.

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Starting Point

Measurement height (m)

Magnetic field level (µT)

Field quantity

Frequency (Hz)

ICNIRP General Public (%)

   Distance from starting point (m)

4

0.5 (above ground level)

0.107

resultant magnetic field

42

0.090

1.0 (above ground level)

0.089

resultant magnetic field

51

0.091

1.5 (above ground level)

0.060

resultant magnetic field

24

0.029

-

0.085

three-point average exposure level

 

 

Maximum magnetic field values outside the substation, 0.2 m away from the front side boundary wall.

 

Starting Point

Measurement height (m)

Magnetic field level (µT)

Field quantity

Frequency (Hz)

ICNIRP General Public (%)

Measuring point

1

1.0 (above ground level)

0.008

resultant magnetic field

5

0.001

2

1.0 (above ground level)

0.009

resultant magnetic field

5

0.001

3

1.0 (above ground level)

0.008

resultant magnetic field

5

0.001

4

1.0 (above ground level)

0.008

resultant magnetic field

5

0.001

5

1.0 (above ground level)

0.007

resultant magnetic field

5

0.001

6

1.0 (above ground level)

0.008

resultant magnetic field

7

0.001

7

1.0 (above ground level)

0.007

resultant magnetic field

5

0.001

8

1.0 (above ground level)

0.007

resultant magnetic field

7

0.001

Maximum magnetic field values at the area of interest (plot).

From the measurements performed it can be concluded that the:

·         Magnetic field measurements performed at the area of interest were below the recommended General Public reference levels of the National Exposure Limits provided in 1999/519/EC.