Superseded
Standard
Historical
IEC 61557-7:1997
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 - Part 7: Phase sequence
Preview
Summary
Specifies requirements for measuring equipment applied to testing th
e phase sequence in three-phase distribution systems. Indication of
the phase sequence may be mechanical, visual and/or audible.
e phase sequence in three-phase distribution systems. Indication of
the phase sequence may be mechanical, visual and/or audible.
Technical characteristics
| Publisher | International Electrotechnical Commission (IEC) |
| Publication Date | 02/28/1997 |
| Release Date | 02/28/1997 |
| Cancellation Date | 01/29/2007 |
| Edition | 1 |
| Page Count | 15 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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