Results 241 to 250 of about 615,383 (291)

Power frequency magnetic fields and computer monitor instability

Displays, 1998
Owing to the increased use of electronic loads, the harmonic content of the magnetic field in buildings has increased and it is therefore of interest to study how the harmonics (i.e.
Monica Sandströma, Kjell Hansson Mild, Eugene Lyskova, Jonna Wilén   +3 more
openaire   +1 more source

Simple variable power frequency magnetic field measurement

2016 International Conference on Signal Processing, Communication, Power and Embedded System (SCOPES), 2016
Electromagnetic compatibility and electromagnetic interference are important factors of Power engineering and have direct effect on sensitive equipment performance. Therefore, sensitive devices must have field protection against surrounding magnetic fields.
openaire   +1 more source

Power frequency magnetic fields around busbar trunking risers

2002 3rd International Symposium on Electromagnetic Compatibility, 2003
Busbar systems are often employed as a riser for power distribution in large buildings. The magnetic fields around typical busbar trunking systems are evaluated in this paper via numerical and experimental investigation. Galvanized iron enclosure of the busbar trunking system is approximately modeled as a linear enclosure with a constant equivalent ...
null Fu Zhengcai, null Xu Lin, null Du Yaping   +2 more
openaire   +1 more source

Do Power Frequency Magnetic Fields Cause Leukemia in Children?

American Journal of Preventive Medicine, 1995
The possibility of a causal relationship between exposure to electromagnetic fields and childhood leukemia has been studied for more than 10 years. This review evaluates the epidemiologic findings relevant to a possible causal association between exposure to power frequency magnetic fields during childhood and leukemia.
openaire   +2 more sources

Side effects of the power frequency magnetic field mitigation

2017 10th International Symposium on Advanced Topics in Electrical Engineering (ATEE), 2017
The paper aims to assess side effects which occur as a result of measures adopted to reduce the electromagnetic field in the vicinity of overhead power lines, respectively using the phases' transposition for double circuit transmission lines. Practical considerations about the accuracy of magnetic field calculation were discussed considering the real ...
Marian Costea, Ileana Baran
openaire   +1 more source

Measurement of power frequency magnetic fields in different environments

2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099), 2005
The power companies as well as the public are becoming increasingly interested in the possible link between exposure to power frequency magnetic fields and human health. Therefore, special attention is given to measurements of the magnetic field level and their comparison to the established or recommended limits according to national standards in ...
R. Sekerinska, V. Dimcev
openaire   +1 more source

Exposures to power-frequency magnetic fields in the home

Journal of Radiological Protection, 1994
Power-frequency magnetic fields in homes come from a variety of sources, internal (appliances and domestic wiring) and external (electricity distribution and transmission circuits). The authors present results from a survey of the fields encountered at home by 258 adults over one week each.
C J Merchant, D C Renew, J Swanson
openaire   +1 more source

Magnetic field environments at power frequency inside modern buildings

2013 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC), 2013
This paper presents the results of indoor ELF magnetic field environments measured for three kinds of place (home, office, and school) using various electrical devices. Both the fields emitted by devices in isolation and in composite environments were measured.
Mingli Chen, Yaping Du
openaire   +1 more source

Power frequency magnetic fields and computer VDU interference phenomena

Proceedings of the 2nd International Conference on Bioelectromagnetism (Cat. No.98TH8269), 2002
The interference by ambient 50 Hz magnetic fields on computer monitors or VDUs is an issue which has become prominent in recent times due to the widespread use of personal computers. Various options exist to resolve the interference problem by dealing either with the VDU or with the magnetic field sources including the selection of suitable locations ...
T. Dovan, R. Owen
openaire   +1 more source

The indoor magnetic field environments at the power frequency

First IEE International Conference on Building Electrical Technology (BETNET), 2004
With more and more electrical appliances come into the offices and homes, the indoor magnetic field at 50/60 Hz have been significantly increased due to the use of electricity. Long time exposure of human to strong magnetic fields is definitely harmful to the health.
null Ming-li Chen, null Tsz Ho Ng
openaire   +1 more source