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首页> 外文期刊>Electric Power Systems Research >Coordinating the einthoven body impedance model for ECG signals with IEC 60479–1:2018 electrocution heart current factors
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Coordinating the einthoven body impedance model for ECG signals with IEC 60479–1:2018 electrocution heart current factors

机译：Coordinating the einthoven body impedance model for ECG signals with IEC 60479–1:2018 electrocution heart current factors

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? 2022The Einthoven electrical circuit for electrocardiogram (ECG) measurement has been modeled as a 2.5 mA impulse current source at the heart, feeding a 13-resistor network. This model can be inverted to establish heart threat currents from electrocution potentials applied at extremities. Using designation of R (right), L (left), H (hand) and L (leg), electrical safety standard IEC 60479–1:2018 defines risk factors for LH-RH and LL-RL paths compared to reference LH-LL path. Heart current reduction factors can be fitted by adjusting some resistor values and by adding a cross-hip resistance to make nodes at each hip. Reciprocity suggests an approach to validate IEC heart current factors by comparing ECG signal magnitudes for different contacts. Hypothetically, the LH-RH ECG signal should be 10x larger than the LL-RL signal if their IEC heart current split factors are correct. In-vivo tests verify some of the electrocution heart current factors using three-lead and two-lead ECG instruments.

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