Korniewicz H R
Department of Acoustic and Electromagnetic Hazards, Central Institute for Labour Protection, Warsaw, Poland.
Pol J Occup Med Environ Health. 1993;6(4):417-24.
The most known result of the influence of the VLF and LF electric fields on a human being is pain due to stimulation of the skin nerves. The threshold of nerve stimulation is related to a value of electric current flowing across a small area of the skin being in contact with the surface of a metallic object. It is shown in this paper that the following set of important parameters corresponds to fingertip threshold perception of the current which from the value of 0.5 mA at 1 kHz increases linearly up to the value of 50 mA at 100 kHz: charge transported across the skin during one duty cycle (0.225 microC), product of the voltage drop on the skin and the surface of the contact electrode (1 mVm2), product of the power dissipated in the skin under the contact electrode and the surface of the contact electrode (0.5 microW m2), electric field intensity of vertical polarization (1.6 kV/m).
极低频（VLF）和低频（LF）电场对人体影响最广为人知的结果是因皮肤神经受刺激而产生疼痛。神经刺激阈值与流经接触金属物体表面的一小片皮肤区域的电流值相关。本文表明，以下一组重要参数对应于电流的指尖阈值感知，该电流从1 kHz时的0.5 mA值线性增加至100 kHz时的50 mA值：一个工作周期内通过皮肤传输的电荷（0.225微库仑）、皮肤与接触电极表面上的电压降乘积（1毫伏·平方米）、接触电极下方皮肤中耗散的功率与接触电极表面的乘积（0.5微瓦·平方米）、垂直极化电场强度（1.6 kV/m）。
