...step potential difference；resistance reducing agent；deep well earthing；deviated-well resistance reducing [gap=176]关键词：接地电阻；接地装置；土壤电阻率；接触电位差；跨步电位差；降阻剂；深井接地；斜井降阻技术 ..
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接触、跨步电位差都小于允许值。
Both the contact and step potential differences are less than tolerance.
用该方法可以计算接地网的工频电流下的任何参数，如工频接地阻抗、接触电压和跨步电压、网内电位差等。
The methods are able to compute any parameter of grounding grids in power current, such as power ground impedance, touch and step voltage, potential differences within grounding grids and so on.
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