IEC 60255-5:2000 pdf download.Electrical relays
1 Scope and object
This part of lEG 60255 gives general requirements for the insulation coordination of measuring relays and protection equipment.
NOTE 1 Unless otherwise stated, the term reIay(s)” is used as an abbreviation for the expression measuring relays and protection equipmenr in this standard.
In particular, this standard, specifies the following:
— definition of terms;
— guidance for the selection of clearances and creepage distances and other aspects related to the insulation of measuring relays and protection equipment;
— requirements for voltage tests and insulation resistance measurement.
This standard is applicable to the installation and use at altitudes up to 2 000 m of equipment having a rated a.c. voltage up to 1 000 V, with a rated frequency up to 65 Hz, or a d.c. voltage uptol 500V.
This standard also applies to associated auxiliary devices such as shunts, series resistors, transformers, etc., used and tested together with measuring relays and protection equipment as mentioned above, except where the devices are covered by other IEC publications, for example communication interfaces.
NOTE 2 Requirements for altitudes exceeding 2 000 m can be derived from table Bi.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of lEG 60255. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 60255 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and lEG maintain registers of currently valid International Standards.
IEC 60050(151 ):1 978, International Electrotechnical Vocabulary (1EV) — Chapter 151: Electrical and magnetic devices
IEC 60050(448):1995, International Electrotechnical Vocabulary — Chapter 448: Power system protection
IEC 60060-1:1989, High-voltage test techniques — Part 1. General definitions and test requirements
IEC 60085:1984, Thermal evaluation and classification of electrical insulation
IEC 60112:1979， Method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
IEC 60255 (all parts), Electrical relays
IEC 60255-21-1:1988, Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 1: Vibration tests (sinusoidal)
IEC 60255-21-2:1 988, Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 2: Shock and bump tests
IEC 60255-21-3:1993, Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 3: Seismic tests
IEC 60664- 1:1992，Insulation coordination for equipment within low-voltage systems - Part 1:Principles, requirements and tests
IEC 61000-4-5:1995, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 5: Surge immunity test
IEC 61180-1:1992，High-voltage test techniques for low-voltage equipment - Part 1:Definitions and test procedure requirements
IEC 61 180-2:1994，High-voltage test techniques for low-voltage equipment 一Part 2: Test equipment.IEC 60255-5 pdf download.