is a crucial task of the insulation monitor. This device measures the insulation resistance between parts carrying voltage and other components connected to the earth potential. The measurement is made possible by direct voltage. The firm of Saveway has developed a system for continual crucible monitoring with- out measuring the insulation of the system. Here, the “thermally” influenced resistance of the compounds is measured between measuring anodes on the “outer wall” of the wear crucible, see Saveway.
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