电流通过人类和家畜的影响.第2部分:特殊方面

[中文适用范围]： IEC 60479-2是一项技术规范，描述了频率范围在100Hz以上的正弦交流电通过时对人体的影响。给出了通过人体的电流对以下各项的影响： – 带直流分量的交变正弦电流， – 带相位控制的交变正弦电流， – 带多周期控制的交变正弦电流，但仅适用于 15 Hz 至 15 Hz 的交流电频率。 100赫兹。注 1：其他波形正在考虑中。该标准还描述了以单个单向矩形脉冲、正弦脉冲和电容器放电产生的脉冲形式流过人体的电流的影响。注 2：脉冲序列的影响正在考虑中。规定的值被认为适用于 0.1 ms 至 10 ms 的脉冲持续时间。对于大于 10 ms 的脉冲持续时间，适用 IEC 60479-1 图 20 中给出的值。该标准仅考虑直接向人体施加电流源产生的传导电流，正如 IEC 60479-1 和 IEC 60479-3 一样。它不考虑因暴露于外部电磁场而在体内产生的感应电流。 [外文原描述]： IEC 60479-2, which is a technical specification, describes the effects on the human body when a sinusoidal alternating current in the frequency range above 100 Hz passes through it. The effects of current passing through the human body for - alternating sinusoidal current with d.c. components, - alternating sinusoidal current with phase control, - alternating sinusoidal current with multicycle control, are given but are only deemed applicable for alternating current frequencies from 15 Hz up to 100 Hz. This standard furthermore describes the effects of current passing through the human body in the form of single unidirectional rectangular impulses, sinusoidal impulses and impulses resulting from capacitor discharges. The values specified are deemed to be applicable for impulse durations from 0,1 ms up to and including 10 ms. For impulse durations greater than 10 ms, the values given in Figure 20 of IEC 60479-1 apply. This standard only considers conducted current resulting from the direct application of a source of current to the body, as does IEC 60479-1 and IEC 60479-3. It does not consider current induced within the body caused by its exposure to an external electromagnetic field. This third edition cancels and replaces the second edition, published in 1987, and constitutes a technical revision. The major changes with regard to the previous edition are as follows: - the report has been completed with additional information on effects of current passing through the human body for alternating sinusoidal current with d.c. components, alternating sinusoidal current with phase control, alternating sinusoidal current with multicycle control in the frequency range from 15 Hz up to 100 Hz. - an estimation of the equivalent current threshold for mixed frequencies. - the effect of repeated pulses (bursts) of current on the threshold of ventricular fibrillation. - effects of electric current through the immersed human body.