Registration number (WIID)Project No.TitleStatus
54937LVS HD 614 S1:1992Direct-current resistive volt ratio boxesAtcelts
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
50044LVS HD 613 S1:1992Direct-current potentiometersAtcelts
48395HD 390 S1:1979Inductive voltage dividersAtcelts
52086LVS HD 233 S1:1977Recommendations for direct acting indicating electrical measuring instruments and their accessoriesAtcelts
50536HD 301 S1:1977Indirect acting electrical measuring instrumentsAtcelts
51676LVS EN 61557-4:2007Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bondingAtcelts
52853EN 61557-5:1997Electrical 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 5: Resistance to earthAtcelts
48482EN 60051-1:1989/A2:1995Direct acting indicating analogue electrical measuring instruments and their accessories - Part 1: Definitions and general requirements common to all partsAtcelts
51160EN 61557-9:1999Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systemsAtcelts
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