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IEC 61557-7

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

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Organization: IEC
Publication Date: 1 July 2019
Status: active
Page Count: 32
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
scope:

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 mechanical, visual and/or audible.

This document does not apply to additional measurements for other quantities. It does not apply to monitoring relays.

NOTE Common worldwide three-phase distribution systems are depicted in IEC 610101.

Document History

61557-7
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...
61557-7 AMD 1
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.
IEC 61557-7
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...
IEC 61557-7
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.

References

This document references:
IEC 60050-411 - Amendment 1 International Electrotechnical Vocabulary – Part 411: Rotating machinery
Published by IEC on November 1, 2007
This amendment has been prepared by IEC technical committee 1: Terminology. The committee has decided that the contents of this amendment and the base publication will remain unchanged until the...
This document references:
IEC 61010-031 - Safety requirements for electrical equipment for measurement, control and laboratory use – Part 031: Safety requirements for hand-held and hand-manipulated probe assemblies for electrical test and measurement
Published by IEC on August 1, 2018
A description is not available for this item.
This document references:
IEC 61010-1 - Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 1: General requirements
Published by IEC on January 1, 2017
Equipment included in scope This group safety publication is primarily intended to be used as a product safety standard for the products mentioned in the scope, but shall also be used by technical...
This document references:
IEC 61010-2-030 - Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 2-030: Particular requirements for equipment having testing or measuring circuits
Published by IEC on January 1, 2017
This clause of Part 1 is applicable except as follows: Equipment included in scope Replacement: Replace the text with the following: This group safety publication is primarily intended to be used as...
This document is referenced by:
SNZ AS/NZS 3003 - Electrical installations – Patient areas
Published by SNZ on March 26, 2018
This Standard sets out the requirements for areas in new electrical installations and for alterations and repairs of patient areas in existing electrical installations where the organization/entity...
This document is referenced by:
SNZ AS/NZS 4024.1204 - Safety of machinery — Electrical equipment of machines Part 1204: General requirements
Published by SNZ on July 31, 2019
This part of IEC 60204 applies to electrical, electronic and programmable electronic equipment and systems to machines not portable by hand while working, including a group of machines working...
This document is referenced by:
BS EN IEC 61557-1 - 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 1: General requirements
Published by BSI on February 28, 2022
A description is not available for this item.
This document is referenced by:
293 - DIRECT CURRENT (DC) POWER DISTRIBUTION SYSTEMS FOR MARINE AND OFFSHORE APPLICATIONS
Published by ABS on July 1, 2018
This Guide provides the requirements of specific safety aspects associated with the use of shipboard direct current (DC) power distribution systems. This Guide is to be used in conjunction with and...
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