Why doesn ROD-L offer hipot testers that supply both AC and DC voltage in the same box?
None of the regulatory agencies require that a product be tested with both AC and DC voltages. They do, however, generally offer a choice of testing a product with AC at a given voltage or with DC at a different voltage (typically 1.414 times higher than the AC value). The potential problem with using one hipot tester that offers both AC and DC in the same box is operator error. The wrong voltage type (and therefore wrong voltage level) could be inadvertently selected by the operator, and by the time the error is discovered, it may be too late; the products may have already been shipped. Also, the proximity of the different types of transformers and other major components inside one small cabinet that would be necessary would reduce the reliability of the hipot tester.