Substation - Substation Kkonas Court, Residence 3 Dimou Yrodotou Street
The measurements were performed on the 11th November 2015 at 10:10 a.m during cloudy weather conditions. The EMF measurements were performed for the Apartment and substation “Kkonas Court” located at 3, Dimou Yrodotou str., Nicosia. The following figures provide pictures of the area where EMF measuremets were recorded.
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Limiting exposure values have been provided by the ICNIRP recommendations and are guidelines to many countries and organisations. The exposure limits at 50 Hz are tabulated in the following table according to the limits given by ICNIRP.
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Reference levels for Occupational exposure ICNIRP |
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Frequency |
Electric Field Strength, E (V/m) |
Magnetic Field Strength, H (A/m) |
Magnetic Flux Density, B (µT) |
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50 Hz |
10000 |
400 |
500 |
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Reference levels for General Public exposure ICNIRP |
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Frequency |
Electric Field Strength, E (V/m) |
Magnetic Field Strength, H (A/m) |
Magnetic Flux Density, B (µT) |
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50 Hz |
5000 |
80 |
100 |
Table 1: ICNIRP exposure limits for Occupational and General public exposure
The substation is rated at a nominal power of 500 KVA. At the time when the measurements were performed the substation load was recorded as:
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Red Phase |
Yellow Phase |
Blue Phase |
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210A |
140A |
130A |
Table 2: Measured load current
From the resultant load of all three phases as shown above we note that the load is only 22.08 % of the nominal load (500 KVA Transformer).It must therefore be noted that during the summer or in periods of peak load this will directly affect and produce an increase to the electric and magnetic fields.
The highest magnetic field measurement is located at the substation front side with value 1.850 μT. More specifically, this measurementis was recored 0 meters away from the substation front side, at 0.3 meters from the ground and 4 meters away from the starting point.
A detailed description of the maximum measured magnetic fields in the area under investigation, is shown in the following table.
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Magnetic Field Measurements |
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Distance from Side /m |
Maximum Magnetic Field (μT) at Z Height (m) |
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0.3m |
ICNIRP % |
1m |
ICNIRP % |
1.75m |
ICNIRP % |
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Substation front side - Mesh - Maximum values per line |
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M.L. 0m away from Substation front side |
0.185 |
0.185% |
0.937 |
0.937% |
0.338 |
0.338% |
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M.L. 1m away from Substation front side |
1.823 |
1.823% |
0.911 |
0.911% |
0.363 |
0.363% |
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M.L. 2m away from Substation front side |
1.561 |
1.561% |
0.881 |
0.881% |
0.364 |
0.364% |
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Substation back side - Mesh - Maximum values per line |
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| M.L. 0m away from Substation back side | 0.829 | 0.829% | 0.582 | 0.582% | 0.227 | 0.227% |
| M.L. 1m away from Substation back side | 0.496 | 0.496% | 0.376 | 0.376% | 0.193 | 0.193% |
| M.L. 2m away from Substation back side | 0.377 | 0.377% | 0.294 | 0.294% | 0.133 | 0.133% |
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Inside Apartment area - Ground Floor |
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| GMF-D | -- | -- | 0.062 | 0.062% | -- | -- |
Table 3: Maximum Magnetic Field Measurements.
The highest electric field measurement was taken inside the Living Room, at point C with value 5.929 V/m. A detailed description of the maximum measured electric fields in the area under investigation, inside the residence and outside substation, is shown in the following table.
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Electric Field Measurements |
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Measurement Point |
Maximum Electric Field (V/m) at Z Height /m - Percentage of ICNIRP General Public Standard /% |
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0.3m |
ICNIRP % |
1m |
ICNIRP % |
1.75m |
ICNIRP % |
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Substation front side - Maximum value |
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Measurement Point A |
-- |
-- |
1.094 |
0.022% |
-- |
-- |
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Substation back side - Maximum value |
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Measurement Point B |
-- |
-- |
0.707 |
0.014% |
-- |
-- |
| Inside Apartment - Ground Floor | ||||||
| Measurement Point C | -- | -- | 5.929 | 0.119% | -- | -- |
Table 4: Electric Field Measurements.