Fire accident can arise from low-voltage arc fault, and so it is necessary to detect arc fault.

低压故障 电弧有引发火灾的危险，所以检测故障 电弧是必要的。

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But the argon plasma arc voltage, low enthalpy is not high, cutting ability is limited, and cut the air than the thickness of the cut about 25% lower.

但氩气等离子弧的电压较低，焓值不高，切割能力有限，与空气切割相比其切割的厚度大约会降低25%。

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The arc voltage, current, power and resistance of a nitrogen gliding arc in one period were studied.

以氮气滑动弧为例，分析了其在一个周期内电弧电压、电流、电阻和功率的变化特性。

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The carbon is placed next to the steel die form, and very high voltage is sent between the carbon and the steel, creating a powerful arc of heat, which vaporizes the steel in the desired pattern.

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