The following is an overview of the applicable limit values for low-frequency electric and magnetic fields.

Limit values Frequency (f) Flux density (B) Field strength (E) Application / Validity
Immission limit values

IGW according to 26. BImSchV

 

 50 Hz
16.7 Hz		 100 µT
300 µT		 5’000 V/m
10’000 V/m		 Germany: Everywhere people could be present
Immission limit values

IGW according to NISV

 0 Hz
16.7 Hz
400 Hz
statisch		 100 µT
300 µT
12.5 µT
40’000 µT		 5’000 V/m
10’000 V/m
625 V/m
—		 Switzerland: Everywhere people could be present
Plant limit value

AGW according to NISV

 50 Hz 1 µT — Switzerland: In places with sensitive use
Occupational health and safety,

BGV B11 Exposure area 1

BGV B11 Exposure area 2

 50 Hz
16.7 Hz50 Hz
16.7 Hz		 1’358 µT
4’073 µT424 µT
1’270 µT		 21’320 V/m
30’000 V/m6’666 V/m
20’000 V/m		 Germany: The regulation applies if insured persons are exposed to electric, magnetic or electromagnetic fields, unless the 26th BImSchV applies.
Occupational hygiene limit values

AHG according to

SUVA

 50 Hz
16.7 Hz
400 Hz
statisch		 500 µT
1500 µT
62.5 µT
200’000 µT		 10’000 V/m
20’000 V/m
1’250 V/m
40’000 V/m		 Switzerland: At company-owned workplaces with occupational exposure
Interference immunity according to EN 61000-4-8

 

 50 Hz 3.75 µT — EU: Immunity to magnetic fields with energy-related frequencies for devices
Interference threshold limits

according to IRPA 1990

 50 Hz 16 µT 2’500 V/m Int.: For wearers of implants such as pacemakers, hearing aids
Power installations in hospitals and medically used rooms outside hospitals ÖNORM E8007 50 Hz EMG / 0.1 µT
EEG / 0.2 µT
EKG / 0.4 µT		 — Austria: For rooms used for medical purposes, also with EMG / EEG / EKG
Rooms used for medical purposes, patient rooms, in accordance with DIN/VDE 0100-710 50 Hz 0.2 µT
0.4 µT		 — Germany: For medically used rooms with EEG / EKG equipment
Reference values for public exposure to alternating electric and magnetic fields.

Public Health  (ICNIRP)

 25 Hz – 50 Hz
50 Hz – 400Hz
400 Hz – 3000 Hz		 200 µT
200 µT
8 x 10-2/f T		 5’000 V/m
2.5 x 102/f kV/m
2.5 x 102/f kV/m		 Int.: ICNIRP Directive
Reference values for exposure to alternating electric and magnetic fields at the workplace. Occupational exposure (ICNIRP) 25 Hz – 300 Hz
300 Hz – 3000 Hz		 1 mT
0.3/f T		 5 x 102/f kV/m
5 x 102/f kV/m		 Int.: ICNIRP Directive

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