首先接地，什么叫接地；接地就是把零线（中线）与大地可靠的连接起来． 什么叫电弧，电弧就是高压在某点以此为中心；在某一范围内进行波纹电压扩散．就像水波一样，每一个波圈就称水波弧；电就叫电弧．每两电弧之间就成在跨弧电压，跨度越大，电压越高．当高压电缆断后，人们为了防止触电，就要求两脚并笼，跳着前行． 电弧短路可以理解为，将两电弧之间通过一定的手段短接起来；把电压变为零，来作保护． 接地电弧短路应该是一种保护法，防止地线短接到高压，然而伤害到人．
一次短路电弧熔珠和二次短路电弧熔珠是飞机电气火灾原因鉴别的重要物证。
The primary arc beads and the secondary arc beads are the important evidence for identification of the cause of fire during airplane electrical fire investigation.
简述了短路电弧焊接的物理过程及过程稳定性概念，介绍了有关短路焊接过程稳定性各种评价方法及相应准则，最后对其进行了必要的讨论。
This paper interprets the short-circuit arc welding process and the process stability. The evaluation methods and criteria for the short-circuit arc welding process are introduced and discussed.
电的最后结果发生时，有电线导体短路(有电弧放电的现象)或电线导体开口暴露的现象。
Electrical end results occur with the shorting together of the cord conductors (evidence of an electrical arc discharge exists) or with the opening of either or both of the cord conductors.
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