Registration number (WIID)Project No.TitleStatus
51277LVS HD 390 S2:1992Inductive voltage dividersAtcelts
50507LVS HD 469 S1:2002Expression of the properties of logic analysersAtcelts
45015LVS HD 612 S1:2003Standard cellsAtcelts
50044LVS HD 613 S1:1992Direct-current potentiometersAtcelts
54937LVS HD 614 S1:1992Direct-current resistive volt ratio boxesAtcelts
47443LVS HD 615 S1:1992Direct current bridges for measuring resistanceAtcelts
43238prEN 50197-1Measuring and monitoring equipment for testing the electrical safety in low-voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Part 1: General requirementsIzstrādē
45079prEN 50197-2Measuring and monitoring equipment for testing the electrical safety in low-voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Part 2: Equipment for measuring insulation resistanceIzstrādē
57854prEN 50197-3Measuring and monitoring equipment for testing the electrical safety in low-voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Part 3: Equipment for measuring loop impedanceIzstrādē
50592prEN 50197-4Measuring and monitoring equipment for testing the electrical safety in low-voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Part 4: Equipment for measuring resistanceIzstrādē
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