Shielding efficiency of conductive clothing in magnetic field

Nowadays the different live-line maintenance methods are one of the most common working techniques to maintain, repair or check high voltage power lines. Shielding of extra low frequency (ELF) electric fields is relatively easy: the conductive clothing worn by the workers act as a Faraday-cage. During live-line maintenance workers are near the conductors, or often on them. On high voltage power lines high currents flows as well, which results relevant magnetic fields around the conductors. The worker in these fields is especially endangered by the unknown effects of these fields.