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Standards BS - British national standards - Page 7871
BSi – The company, BSI British Standards, is a national standards body of the United Kingdom (NBS) and it was actually the very first one in the world. It represents national and social interests of Great Britain in all European and international standardization organizations and in the development of business information of British institutions of all sizes and sectors. BSI British Standards cooperates with manufacturing and service industries, various companies, the government and with consumers as well in order to facilitate the production of British, European and international standards. A part of BSI Group, BSI British Standards, works closely with the government of the United Kingdom, especially in the Department for Innovations, Universities and Skills (DIUS).
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BS EN 61557-3:1997
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Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures. Loop impedance.
WITHDRAWN published on 15.7.1997
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BS EN 61557-3:2007
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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. Loop impedance.
WITHDRAWN published on 29.6.2007
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BS EN 61557-4:1997
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Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures. Resistance of earth connection and equipotential bonding.
WITHDRAWN published on 15.7.1997
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BS EN 61557-4:2007
WITHDRAWN
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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.
WITHDRAWN published on 29.6.2007
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BS EN 61557-5:1997
WITHDRAWN
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Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures. Resistance to earth.
WITHDRAWN published on 15.7.1997
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BS EN 61557-5:2007
WITHDRAWN
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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.
WITHDRAWN published on 29.6.2007
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BS EN 61557-6:1998
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Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures. Residual current devices (RCD) in TT, TN and IT systems.
WITHDRAWN published on 15.9.1998
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BS EN 61557-6:2007
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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.
WITHDRAWN published on 31.12.2007
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BS EN 61557-7:1997
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Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures. Phase sequence.
WITHDRAWN published on 15.7.1997
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BS EN 61557-7:2007
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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.
WITHDRAWN published on 29.5.2007
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