Name:
IEC 61557-7 Ed. 3.0 b:2019 PDF

Published Date:
07/26/2019

Status:
Active

Description:

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

Publisher:
International Electrotechnical Commission

Document status:

Active

Format:

Electronic (PDF)

Delivery time:

10 minutes

Delivery time (for Russian version):

200 business days

SKU:

IEC 61557-7 specifies the requirements for measuring equipment applied to testing the phase sequence in three-phase distribution systems. Indication of the phase sequence may be mechanical, visual and/or audible. This part of IEC 61557 does not apply to ancillary measuring equipment for other quantities, for example voltage testers comprising an additional phase sequence indicator. It does not apply to monitoring relays.

Edition :	3.0
File Size :	1 file , 1.2 MB
Note :	This product is unavailable in Ukraine, Russia, Belarus
Number of Pages :	28
Published :	07/26/2019

History

IEC 61557-7 Ed. 3.1 b:2023

Published Date: 08/01/2023

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 - Part 7: Phase sequence CONSOLIDATED EDITION

$47.4

IEC 61557-7 Ed. 3.0 b:2019

Published Date: 07/26/2019

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

$28.5

IEC 61557-7 Ed. 1.0 b:1997

Published Date: 02/28/1997

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

$9.6

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