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ČSN - České národní normy
Stránka 3205
ČSN EN 61557-5 (01.10.1998) Neplatné
Electrical safety in low voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Equipment for testing, measuring for monitoring of protective measures - Part 5: Resistance to earth
Dostupné prevedenie: Tlačené
od 7.70 EUR viac informácií
ČSN EN 61557-5-ed.2 (01.12.2007) Neplatné
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 - Part 5: Resistance to earth
Dostupné prevedenie: Tlačené
od 7.70 EUR viac informácií
ČSN EN 61557-6 (01.04.2000) Neplatné
Electrical safety in low voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 6: Residual current devices (RCD) in TT, TN and IT systems
Dostupné prevedenie: Tlačené
od 7.70 EUR viac informácií
ČSN EN 61557-6-ed.2 (01.06.2008) Neplatné
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 - Part 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems
Dostupné prevedenie: Tlačené
od 9.20 EUR viac informácií
ČSN EN 61557-7 (01.10.1998) Neplatné
Electrical safety in low voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence
Dostupné prevedenie: Tlačené
od 7.70 EUR viac informácií
ČSN EN 61557-7-ed.2 (01.12.2007) Neplatné
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 - Part 7: Phase sequence
Dostupné prevedenie: Tlačené
od 7.70 EUR viac informácií
ČSN EN 61557-8 (01.10.1998) Neplatné
Electrical safety in low voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devicese for IT systems
Dostupné prevedenie: Tlačené
od 9.20 EUR viac informácií
ČSN EN 61557-8-ed.2 (01.01.2008) Neplatné
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 - Part 8: Insulation monitoring devices for IT systems
Dostupné prevedenie: Tlačené
od 14.00 EUR viac informácií
ČSN EN 61557-9 (01.11.2000) Neplatné
Electrical safety in low voltage distribution systems up to 1 kV a.c. and 1.5 kV d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems
Dostupné prevedenie: Tlačené
od 9.20 EUR viac informácií
ČSN EN 61557-9-ed.2 (01.01.2010) Neplatné
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 - Part 9: Equipment for insulation fault location in IT systems
Dostupné prevedenie: Tlačené
od 14.00 EUR viac informácií
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