Miscellaneous - Mesa Geitonia, Limassol

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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 «951» in close proximity with house under construction at Mesa Geitonia area, Limassol, on the 08/10/2021 from 08:40 until 09:30.

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)

3

0.5 (above ground level)

0.587

resultant magnetic field

50

0.5872

1.0 (above ground level)

0.406

resultant magnetic field

58

0.4712

1.5 (above ground level)

0.317

resultant magnetic field

51

0.3232

-

0.437

three-point average exposure level

 

 

Maximum magnetic field values outside the substation, 0.2 m away from the left 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)

0.012

resultant magnetic field

6

0.0010

2

1.0 (above ground level)

0.004

resultant magnetic field

6

0.0003

3

1.0 (above ground level)

0.003

resultant magnetic field

6

0.0003

4

1.0 (above ground level)

0.007

resultant magnetic field

6

0.0006

5

1.0 (above ground level)

0.015

resultant magnetic field

6

0.0013

6

1.0 (above ground level)

0.015

resultant magnetic field

11

0.0034

7

1.0 (above ground level)

0.004

resultant magnetic field

6

0.0003

8

1.0 (above ground level)

0.004

resultant magnetic field

6

0.0004

9

1.0 (above ground level)

0.004

resultant magnetic field

6

0.0003

10

1.0 (above ground level)

0.003

resultant magnetic field

6

0.0003

11

1.0 (above ground level)

0.004

resultant magnetic field

6

0.0003

12

1.0 (above ground level)

0.003

resultant magnetic field

6

0.0003

Maximum magnetic field values at the area of interest (house under construction at Mesa Geitonia area, Limassol).

 



From the measurements performed it can be concluded that the:

·         Point EMF measurements (including uncertainty intervals) were below the recommended general public reference exposure levels to electromagnetic fields of the National Exposure Limits provided in 1999/519/EC.