STB PDF

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Resistance of earth connection and equipotential bonding. Original standard UNE-EN IEC 61557-4-2021 in PDF full version. Additional info + preview on request

Document status: Active

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures - Resistance to earth. Original standard UNE-EN IEC 61557-5-2021 in PDF full version. Additional info + preview on request

Document status: Active

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 - Effectiveness of residual current devices (RCD) in TT, TN and IT systems. Original standard UNE-EN IEC 61557-6-2021 in PDF full version. Additional info + preview on request

Document status: Active

Safety of transformers, reactors, power supply units and combinations thereof - Part 1- General requirements and tests. Original standard UNE-EN IEC 61558-1-2021 in PDF full version. Additional info + preview on request

Document status: Active

Radiation protection instrumentation. Equipment for measuring the activity concentration of gamma-emitting radionuclides in foodstuffs. Original standard UNE-EN IEC 61563-2021 in PDF full version. Additional info + preview on request

Document status: Active

Mechanical structures for electrical and electronic equipment. Tests for IEC 60917 and IEC 60297 series - Security aspects for indoor cabinets. Original standard UNE-EN IEC 61587-6-2021 in PDF full version. Additional info + preview on request

Document status: Active