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Compliance boundaries for train protection systems.
- Source :
- Radiation Protection Dosimetry; Jan2014, Vol. 158 Issue 1, p68-72, 5p
- Publication Year :
- 2014
-
Abstract
- Occupational exposure to non-ionising electromagnetic radiation emitted by train protection (TP) systems operating at ∼27 MHz is investigated in situ. In total, five TP systems of two different types, i.e. KVB (Contrôle de Vitesse par Balises) and TBL1+ (Transmission Balise-Locomotive), are considered. For each type, the boundaries outside which the field levels are in compliance with the International Commission on Non-Ionizing Radiation Protection guidelines for occupational exposure (‘compliance boundaries’) are determined. Maximal fields of 4.7 A m−1 and 0.2 kV m−1 for KVB, and 51 A m−1 and 1.5 kV m−1 for TBL1+ are measured, at distances between 10 and 25 cm from the respective antennas. Compliance boundaries for occupational exposure are maximally 0.6 m for KVB to 1 m for TBL1+, while no specific compliance boundary is needed for the general public. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01448420
- Volume :
- 158
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Radiation Protection Dosimetry
- Publication Type :
- Academic Journal
- Accession number :
- 93398611
- Full Text :
- https://doi.org/10.1093/rpd/nct183