Reference Date Title Language EN 61557-7:2007 2007-03-23 Electrical 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 7: Phase sequence     EN 60524:1993/A2:1997 1997-11-14 Direct-current resistive volt ratio boxes     EN 60564:1993 1993-04-19 D.C. bridges for measuring resistance     EN 60477-2:1997 1997-10-31 Laboratory resistors - Part 2: Laboratory a.c. resistors     EN 60618:1997 1997-11-04 Inductive voltage dividers     EN 61143-1:1994 1994-06-17 Electrical measuring instruments - X-t recorders - Part 1: Definitions and requirements     EN 60051-5:1989 1989-11-22 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 5: Special requirements for phase meters, power factor meters and synchroscopes     EN 62008:2005 2005-10-20 Performance characteristics and calibration methods for digital data acquisition systems and relevant software     EN 61557-3:2007 2007-03-23 Electrical 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 3: Loop impedance     EN 60359:2002 2002-03-08 Electrical and electronic measurement equipment - Expression of performance     EN 61557-10:2001 2001-04-03 Electrical 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 10: Combined measuring equipment for testing, measuring or monitoring of protective measures     EN 60477:1997/A1:1997 1997-10-31 Laboratory d.c. resistors     EN 60477-2:1997/A1:1997 1997-10-31 Laboratory resistors - Part 2: Laboratory a.c. resistors     EN 60051-1:1998 1998-12-17 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 1: Definitions and general requirements common to all parts     EN 60564:1993/A2:1997 1997-11-03 D.C. bridges for measuring resistance     EN 60523:1993/A2:1997 1997-11-14 Direct-current potentiometers     EN 60477:1997 1997-10-31 Laboratory d.c. resistors     EN 60688:1992/A1:1999 1999-04-21 Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital signals     EN 60618:1997/A2:1997 1997-11-04 Inductive voltage dividers     EN 61143-1:1994/A1:1997 1997-11-12 Electrical measuring instruments - X-t recorders - Part 1: Definitions and requirements     EN 61028:1993/A2:1997 1997-11-18 Electrical measuring instruments - X-Y recorders     EN 61143-2:1994 1994-06-17 Electrical measuring instruments - X-t recorders - Part 2: Recommended additional test methods     EN 61187:1994 1994-11-21 Electrical and electronic measuring equipment - Documentation     EN 60051-3:1989/A1:1995 1995-01-11 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 3: Special requirements for wattmeters and varmeters     EN 61028:1993/A1:1995 1995-07-25 Electrical measuring instruments - X-Y recorders     EN 60051-9:1989/A2:1995 1995-03-01 Direct acting indicating analogue electrical-measuring instruments and their accessories - Part 9: Recommended test methods     EN 60051-9:1989/A1:1995 1995-06-13 Direct acting indicating analogue electrical-measuring instruments and their accessories - Part 9: Recommended test methods     EN 61028:1993 1993-01-20 Electrical measuring instruments - X-Y recorders     EN 60051-8:1989 1989-11-23 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 8: Special requirements for accessories     EN 60051-9:1989 1989-11-29 Direct acting indicating analogue electrical-measuring instruments and their accessories - Part 9: Recommended test methods     HD 368 S1:1978 1978-06-15 Direct acting recording electrical measuring instruments and their accessories     EN 60688:1992 1992-06-09 Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital signals     EN 60524:1993 1993-04-16 Direct-current resistive volt ratio boxes     EN 60051-2:1989 1989-11-14 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 2: Special requirements for ammeters and voltmeters     EN 60051-3:1989 1989-11-16 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 3: Special requirements for wattmeters and varmeters     EN 60051-4:1989 1989-11-16 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 4: Special requirements for frequency meters     EN 60051-6:1989 1989-11-23 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 6: Special requirements for ohmmeters (impedance meters) and conductance meters     EN 60051-7:1989 1989-11-24 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 7: Special requirements for multi-function instruments     EN 61557-4:2007 2007-03-23 Electrical 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 bonding     EN 60523:1993 1993-04-14 Direct-current potentiometers     EN 61557-1:2007 2007-03-23 Electrical 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 1: General requirements     EN 61557-2:2007 2007-03-23 Electrical 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 2: Insulation resistance     EN 60688:1992/A2:2001 2001-09-20 Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital signals     EN 61557-6:2007 2007-11-07 Electrical 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 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems     EN 61557-12:2008 2008-05-15 Electrical 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 12: Performance measuring and monitoring devices (PMD)     EN 61557-5:2007 2007-03-23 Electrical 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 5: Resistance to earth     EN 61557-8:2007 2007-07-20 Electrical 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 systems     EN 61557-9:2009 2009-03-18 Electrical 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 systems     EN 61557-11:2009 2009-03-18 Electrical 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 11: Effectiveness of residual current monitors (RCMs) type A and type B in TT, TN and IT systems     EN 61557-13:2011 2011-09-23 Electrical 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 13: Hand-held and hand-manipulated current clamps and sensors for measurement of leakage currents in electrical distribution systems     EN 60688:2013 2013-01-11 Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals