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 4: Resistance of earth connection and equipotential bonding (Endorsed by Asociación Española de Normalización in April of 2022.)
Edition 2022-04-01

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 5: Resistance to earth (Endorsed by Asociación Española de Normalización in April of 2022.)
Edition 2022-04-01

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 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems (Endorsed by Asociación Española de Normalización in April of 2022.)
Edition 2022-04-01

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 7: Phase sequence (Endorsed by Asociación Española de Normalización in July of 2022.)
Edition 2022-07-01

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 7: Phase sequence (Endorsed by Asociación Española de Normalización in November of 2023.)
Edition 2023-11-01

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 11: Effectiveness of residual current monitors (RCM) in TT, TN and IT systems
Edition 2023-01-18

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 12: Power metering and monitoring devices (PMD)
Edition 2023-11-29

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 12: Power metering and monitoring devices (PMD)
Edition 2023-11-29

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 17: Non-contact AC voltage indicators (Endorsed by Asociación Española de Normalización in February of 2022.)
Edition 2022-02-01

HEAT EXCHANGERS. METHODS OF MEASURING THE PARAMETERS NECESSARY FOR ESTABLISHING THE PERFORMANCE.
Edition 1997-10-21