Registration number (WIID)Project No.TitleStatus
54984prEN 50197-8Measuring 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 8: Insulation monitoring devices for IT a.c. distribution systems, for IT a.c. distribution systems with galvanically connected d.c. circuits and for IT d.c. systemsIzstrādē
54937LVS HD 614 S1:1992Direct-current resistive volt ratio boxesAtcelts
54937HD 614 S1:1992Direct-current resistive volt ratio boxesAtcelts
54860LVS EN 61557-8:2007Electrical 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 8: Insulation monitoring devices for IT systemsAtcelts
54831prEN 50197-6Measuring 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 6: Measuring equipment for testing the effectiveness of protective measures in TT and TN systems by disconnection with residual current devices (RCD)Izstrādē
54688LVS EN 61557-6:2008Electrical 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 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systemsAtcelts
54347LVS HD 249 S1:1978Laboratory d.c. resistorsAtcelts
54347HD 249 S1:1978Laboratory d.c. resistorsAtcelts
54031LVS EN 60051-3:2002 +A1Direct acting indicating analogue electrical measuring instruments and their accessories - Part 3: Special requirements for wattmeters and varmetersAtcelts
53516prEN 60688-2Electrical measuring transducers for converting a.c. electrical quantities into d.c. electrical quantities - Part 2: Transducers for outdoor use and other severe environmentsIzstrādē
Displaying 31-40 of 118 results.