Belarus standards PDF
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 - Resistance of earth connection and equipotential bonding. Original standard BS EN 61557-4-2007 in PDF full version. Additional info + preview on request
Document status: Replaced by STB BS EN IEC 61557-4-2021
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 - Resistance to earth. Original standard BS EN 61557-5-2007 in PDF full version. Additional info + preview on request
Document status: Replaced by STB BS EN IEC 61557-5-2021
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 - Effectiveness of residual current devices (RCD) in TT, TN and IT systems. Original standard BS EN 61557-6-2007 in PDF full version. Additional info + preview on request
Document status: Replaced by STB BS EN IEC 61557-6-2021
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 - Phase sequence. Original standard BS EN 61557-7-2007 in PDF full version. Additional info + preview on request
Document status: Replaced by STB BS EN 61557-7-2022 + A1-2023
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 - Equipment for insulation fault location in IT systems. Original standard BS EN 61557-9-2015 in PDF full version. Additional info + preview on request
Document status: Withdrawn
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 - Equipment for insulation fault location in IT systems. Original standard BS EN 61557-9-2015 (2017) in PDF full version. Additional info + preview on request
Document status: Withdrawn