IEC 61557-7
Electrical Safety in Low Voltage Distribution Systems up to 1000 V a.c. and 1500 V d.c. - Equipment for Testiong, Measuring or Monitoring of Protective Measures - Part 7: Phase Sequence
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| Organization: | IEC |
| Publication Date: | 1 February 1997 |
| Status: | inactive |
| Page Count: | 20 |
| ICS Code (Power transmission and distribution networks in general): | 29.240.01 |
| ICS Code (Measurement of electrical and magnetic quantities): | 17.220.20 |
| ICS Code (Electrical insulation in general): | 29.080.01 |
Document History
August 1, 2023
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 – Part 7: Phase sequence
This part of IEC 61557 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems. Indication of the phase sequence can be...
August 1, 2023
AMENDMENT 1 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 – Part 7: Phase sequence
A description is not available for this item.
July 1, 2019
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
This part of IEC 61557 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems. Indication of the phase sequence can be...
January 1, 2007
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
This part of IEC 61557 specifies the requirements for measuring equipment applied to testing the phase sequence in three-phase distribution systems. Indication of the phase sequence may be...
IEC 61557-7
February 1, 1997
Electrical Safety in Low Voltage Distribution Systems up to 1000 V a.c. and 1500 V d.c. - Equipment for Testiong, Measuring or Monitoring of Protective Measures - Part 7: Phase Sequence
A description is not available for this item.