DIN EN 61557-10:2014-03

This part of IEC 61557 specifies particular requirements for combined measuring equipment which can combine several measuring functions or methods of testing, measuring or monitoring into one piece of apparatus, as described in the respective parts of the standard series IEC 61557. The user shall not be subjected to danger when the highest extraneous overvoltage according to the respective parts of this standard series is accidentally applied to each combination of all test/measurement terminals in every possible combination of functions and ranges of a combined measuring equipment. This applies in any combination of function and range setting, even though some of these functions are not themselves covered by parts of series of IEC 61557. Terminals which are obviously no test/measurement terminals and which can also not accommodate terminals of the specified probes or equipment shall not be tested. The duration time shall be the longest possible indicated in the respective parts of IEC 61557. The responsible committee is Subcommittee DKE/UK 964.1 "Messgeräte zum Prüfen von Schutzmaßnahmen" ("Equipment for testing of protective measures") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.