The technical report (part 5 of IEC 60479) provides touch voltage-duration combination thresholds based on analysis of information concerning body impedances and current thresholds of physiological effects, as given in IEC 60479-1. Such threshold combinations relate to specific environmental and contact conditions that determine body impedance for particular current pathways. A methodology is provided for estimating voltage thresholds which are intended to give guidance to IEC technical committees on the selection and application of voltage limits with regard to protection against electric shock.
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