The leakage current must be returned to the source, it will flow through any available thermocouple conductor, line pipe, pipeline, water or earth went to the source.
漏泄电流必需前往至源极，它将流经任何热电偶可用的导体、线管、管道、水或大地前往到源极。
3
Assimilating the filling pipe to a grounded conductor at the axis of the vessel, the electrostatic boundary problem is solved analytically.