- What are electromagnetic fields?
- Static and low-frequency fields
- What are static and low-frequency electric and magnetic fields?
- Direct and alternating voltage
- Effects of static and low-frequency fields
- Reports & Evaluations
- Radiation protection relating to the expansion of the national grid
- Basics transfer of electrical power
- High-frequency fields
- What are high-frequency fields?
- Applications high-frequency fields
- Radiation protection in mobile communication
- What is mobile communication?
- Reports and evaluations
- What is optical radiation?
- UV radiation
- What is UV radiation?
- Sun but safe!
- Effects of UV radiation
- Protection against UV radiation
- UV index
- Infrared radiation
- What is ionising radiation?
- Radioactivity in the environment
- Where does radioactivity occur in the environment?
- What is the level of natural radiation exposure in Germany?
- Air, soil and water
- Building materials
- Industrial residues (NORM)
- BfS laboratories
- Applications in medicine
- Radiation protection in medicine: international activities
- Applications in daily life and in technology
- Radioactive radiation sources in Germany
- Register high-level radioactive radiation sources
- Type approval procedure pursuant to RöV and StrlSchV
- Cabin luggage security checks
- Radioactive materials in watches
- Ionisation smoke detectors (ISM)
- What are the effects of radiation?
- Effects of selected radioactive materials
- Consequences of a radiation accident
- Cancer and leukaemia
- Genetic radiation effects
- Individual radiosensitivity
- Epidemiology of radiation-induced diseases
- Ionising radiation: positive effects?
- Risk estimation and assessment
- Radiation protection
- Basic information
- Occupational radiation protection
- Nuclear accident management
- What is an emergency?
- What happens in an emergency?
- Federal and state tasks
- In the event of an emergency
- Measuring networks
- Exercises for emergency situations
- Defence against nuclear hazards
- Service offers
- Radon measurements
- Incorporation monitoring
- Biological dosimetry
- Online library
- About us
- Science and research
- Research concept
- Scientific collaborations
- EU research framework programme
- BfS research programme
- Third-party funded research
- Departmental research
- Selected research projects
- Selected research results
- Professional opinions
- Science Council
- Laws and regulations
- BfS Topics in the Bundestag
Limit values for static and low frequency fields
The 26th Ordinance Implementing the Federal Immission Control Act (Ordinance on electromagnetic fields – Verordnung über elektromagnetische Felder zum Bundes-Immissionsschutzgesetz – 26 BImSchV) sets limits to protect the public against health hazards due to electric and magnetic fields from direct current and low frequency systems.
The Twenty-sixth Ordinance Implementing the Federal Immission Control Act
The Ordinance has been in force since 1997 and was amended in August 2013. It is based on recommendations of the German Commission on Radiological Protection (Deutsche Strahlenschutzkommission, SSK) and the International Commission on Non-Ionizing Radiation Protection (ICNIRP).
The recommendations of the above commissions rest on scientific evidence of health relevant biological effects that may be produced by electric and magnetic fields.
The 26th BImSchV applies to all stationary low frequency and direct current installations
The 26th BImSchV applies to all stationary low frequency and direct current installations for electric power transformation and distribution operated at voltages exceeding 1000 or 2000 Volts. This includes high-voltage lines, traction current lines, electrical substations, transformer stations and power conversion systems (for high-voltage direct-current transmission, HVDC transmission).
The 26th BImSchV does not apply to domestic electric appliances and power lines. However, the limit values set by the Ordinance may be used to evaluate the risk with regard to potential effects of static and low frequency fields from domestic electric appliances and power lines.
Low frequency installations shall not exceed the limits in places intended for non-temporary presence of humans when operated at maximum capacity. The same is required for direct current installations in places intended for long-term, or temporary presence of humans.
Since its amendment, the 26th BlmSchV contains limits covering both the whole low frequency range and static magnetic fields for the first time. The previous ordinance only covered fields from the traction power lines and overhead lines as well as fields from the 50-Hz-power supply grid.
|Electric field strength E |
(kilovolt per metre)
|Magnetic flux density B |
|1 - 8||5||40.000/f2|
|8 - 25||52)||5.000/f|
|25 - 50||5||2003)|
|50 - 400||250/f||200|
|400 - 3.000||250/f||80.000/f|
|3.000 - 10.000.000||0,083||27|
Limit values help safeguard public health
According to the present state of knowledge, compliance with these limits will ensure health protection of the public even under permanent exposure.
State of 2018.11.07