BS EN IEC 61557-9. Electrical 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 9. Equipment for insulation fault location in IT systems
Edition 2021-05-07

BS EN IEC 61557-13. Electrical 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 13. Hand-held and hand-manipulated current clamps and sensors for measurement of leakage currents in electrical distribution systems
Edition 2021-06-04

BS EN IEC 61557-16. Electrical 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 16. Equipment for testing the effectiveness of the protective measures of electrical equipment and/or medical electrical equipment
Edition 2021-06-04

BS EN IEC 61557-10 . Electrical safety in low voltage distribution systems up to 1000 V AC and 1500 V DC. Equipment for testing, measuring or monitoring of protective measures. Part 10. Combined measuring equipment
Edition 2023-09-01

BS EN IEC 61557-1/AMD1 Amendment 1 - Electrical safety in low voltage distribution systems up to 1000 V AC and 1500 V DC - Equipment for testing, measuring or monitoring of protective measures. Part 1: General requirements
Edition 2023-12-22

BS EN IEC 61557-18 Electrical safety in low voltage distribution systems up to 1000 V AC and 1500 V DC - equipment for testing, measuring or monitoring of protective measures. Part 18: DC EV supply equipment monitoring device
Edition 2024-03-29

Mechanical vibration. Rotor balancing. Enclosures and other protective measures for the measuring station of balancing machines
Edition 2012-06-30

Electrical safety in low voltage distribution systems up to 1000 V AC and 1500 V DC. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance
Edition 2022-07-08

INSPECTION OF TOLERANCES OF PLAIN WORKPIECES. INDICATING MEASURING INSTRUMENTS.
Edition 1979-12-15

CLASSICAL AND NARROW V BELTS. LENGTHS. PART 2: CONDITIONS FOR MEASURING THE DATA LENGHTS.
Edition 1991-02-01