Registration number (WIID)Project No.TitleStatus
50507HD 469 S1:1987Expression of the properties of logic analyzersAtcelts
50536HD 301 S1:1977Indirect acting electrical measuring instrumentsAtcelts
50044HD 613 S1:1992Direct-current potentiometersAtcelts
45015HD 612 S1:1992Standard cellsAtcelts
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
56738EN 60051-1:1989/A1:1995Direct acting indicating analogue electrical measuring instruments and their accessories - Part 1: Definitions and general requirements common to all partsAtcelts
54347HD 249 S1:1978Laboratory d.c. resistorsAtcelts
57006EN 61557-4:1997Electrical 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 4: Resistance of earth connection and equipotential bondingAtcelts
46539EN 61557-6:1998Electrical 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 systemsAtcelts
43243EN 61557-8:1997Electrical 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 8: Insulation monitoring devices for IT systemsAtcelts
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