Original poster: "Godfrey Loudner by way of Terry Fritz <teslalist@qwest.net>" <ggreen@gwtc.net> Do these expulsion fuses have high explosive charges inside to blow out arcs? Was that loud humming sound made by bussing transformer laminations? Godfrey Loudner >I'm going to show at an electrical > safety training class at work, just to illustrate how bad a >high power fault