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首页> 外文期刊>International journal of electrical and power engineering >Electric Shock and Human Body
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Electric Shock and Human Body

机译：电击与人体

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People often assume that any grounded object can be safely touched. A low substation ground resistance is not in itself a guarantee of safety. There is no simple relation between the resistance of the ground system as a whole and the maximum shock current to which a person might be exposed. Therefore, a substation of relatively low ground resistance may be dangerous while another substation with very high resistance may be safe or can be made safe by careful design. The severity of electric shock to humans from low voltage (60 Hz) low source impedance systems is dependent on many variables. These factors include the body impedance, current magnitude and duration, voltage and frequency of the circuit and the current path traversed in the body. Several researchers have investigated safe voltage and current limits that humans can withstand. As a result, thresholds have been established of the body's response to 60 Hz alternating current of a few milliamperes in low voltage systems. This study will briefly explain the causes of electric shock and their effects on human body.
机译：人们通常认为可以安全触摸任何接地物体。变电站的低接地电阻本身并不能保证安全。整个接地系统的电阻与人员可能承受的最大冲击电流之间没有简单的关系。因此，接地电阻较低的变电站可能是危险的，而另一电阻很高的变电站可能是安全的，也可以通过精心设计使其变安全。低压（60 Hz）低源阻抗系统对人的电击严重性取决于许多变量。这些因素包括人体阻抗，电流幅度和持续时间，电路的电压和频率以及在人体中经过的电流路径。一些研究人员研究了人类可以承受的安全电压和电流极限。结果，已经建立了人体对低压系统中几毫安的60 Hz交流电的响应阈值。这项研究将简要解释电击的原因及其对人体的影响。

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