Registration number (WIID)Project No.TitleStatus
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
50153EN 61557-6:1998/AAElectrical safety in low voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 6: Residual current devices (RCD) in TT, TN and IT systemsIzstrādē
47391prEN 50197-7Measuring 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 7: Equipment for indicating phase sequenceIzstrādē
48395HD 390 S1:1979Inductive voltage dividersAtcelts
47443HD 615 S1:1992Direct current bridges for measuring resistanceAtcelts
43631LVS EN 61557-7:2007Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequenceAtcelts
50641EN 61557-1:1997Electrical safety in low voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 1: General requirementsAtcelts
50724LVS EN 61557-5:2007Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 5: Resistance to earthAtcelts
48395LVS HD 390 S1:1979Inductive voltage dividersAtcelts
55518LVS EN 61557-1:2007Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 1: General requirementsAtcelts
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