Substation - 85 Vasiliko Street, Pyrgos, 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:

·         Distribution Substation Pyrgos Limassol and residence at 85 Vasiliko Street, Pyrgos Limassol on the 08/07/2019 from 10:00 am until 11:00 am.

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 and 2.0 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 and electric 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)

0

0.5 (above ground level)

0.197

resultant magnetic field

50

0.197

1.0 (above ground level)

0.735

resultant magnetic field

51

0.750

1.5 (above ground level)

1.074

resultant magnetic field

51

1.096

-

0.669

three-point average exposure level

 

0.681

Starting Point

Measurement height (m)

Electric field level (V/m)

Field quantity

Frequency (Hz)

ICNIRP

General Public (%)

Distance from

starting point (m)

0

1.0 (above ground level)

53.919

resultant magnetic field

51

1.100

Maximum magnetic and electric field values for the investigated distribution substation

 

 

Starting Point

Measurement height (m)

Magnetic field level (µT)

Field quantity

Frequency (Hz)

ICNIRP

General Public (%)

Measuring point

1

(outside residence)

0.5 (above ground level)

0.010

resultant magnetic field

26

0.0053

1.0 (above ground level)

0.013

resultant magnetic field

31

0.0082

1.5 (above ground level)

0.026

resultant magnetic field

45

0.0236

-

0.017

three-point average

exposure level

 

0.0124

Starting Point

Measurement height (m)

Electric field level (V/m)

Field quantity

Frequency (Hz)

ICNIRP

General Public (%)

Distance from

starting point (m)

0

1.0 (above ground level)

0.752

resultant magnetic field

48

0.014

Maximum magnetic field values at the point of interest (residence).


From the measurements performed it can be concluded that the:

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