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IEC 60255-20

Electrical Relays Part 20: Protection (Protective) Systems

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Organization: IEC
Publication Date: 1 January 1984
Status: inactive
Page Count: 60

Document History

IEC 60255-20
January 1, 1984
Electrical Relays Part 20: Protection (Protective) Systems
A description is not available for this item.

References

This document is referenced by:
EN IEC 61936-1 - Power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC
Published by CENELEC on August 1, 2021
This part of IEC 61936 provides requirements for the design and the erection of electrical power installations in systems with nominal voltages exceeding 1 kV AC and nominal frequency up to and...
This document is referenced by:
IEC 60947-5-1 - Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices and switching elements – Electromechanical control circuit devices
Published by IEC on May 1, 2016
Scope and object This part of IEC 60947 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear. It applies...
This document is referenced by:
SNZ AS/NZS IEC 60947.4.2 - Low-voltage switchgear and controlgear Part 4.2: Contactors and motor-starters-AC semiconductor motor controllers and starters
Published by SNZ on June 29, 2015
This standard applies to a.c. semiconductor motor controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which...
This document is referenced by:
SNZ AS/NZS IEC 60947.5.1 - Low-voltage switchgear and controlgear Part 5.1: Control circuit devices and switching elements-Electromechanical control circuit devices
Published by SNZ on June 29, 2015
Scope and object This part of IEC 60947 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear. It applies...
This document is referenced by:
IEC 60947-5-1 REDLINE - Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices and switching elements – Electromechanical control circuit devices
Published by IEC on May 1, 2016
Scope and object This part of IEC 60947 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear. It applies...
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