IEC 60477-2:2022
Current
The latest, up-to-date edition.
Laboratory resistors - Part 2: Laboratory AC resistors
Hardcopy , PDF
English - French
30-03-2022
IEC 60477-2:2022 applies to resistors intended as laboratory AC resistors for use over a range of frequencies from DC up to a stated frequency which is not in excess of 1 MHz. Such resistors are hereinafter referred to as "AC resistors".
In addition to satisfying the requirements of IEC 60477-1, resistors satisfying the requirements of this document are designed to have a small variation of resistance and a small phase displacement over the stated frequency range.
IEC 60477-2:2022 cancels and replaces the first edition published in 1979, and Amendment 1:1997. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) extended the AC resistor frequency range to 1 MHz;
b) updated the terms and definitions according to IEC 60050 series;
c) added the definition of AC/DC difference of an AC resistor;
d) added the resistor classification according to the AC resistance or AC/DC difference index;
e) updated the classification according to the AC resistor construction;
f) updated the safety symbols and requirements according to IEC 60477-1;
g) added the three-element equivalent circuits of an AC resistor in Annex C;
h) added the annex on constructions of AC resistors.
| Committee |
TC 85
|
| DocumentType |
Standard
|
| Pages |
54
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| CEI EN IEC 63033-2:2022 | Identical |
| CEI EN IEC 60477-2:2022 | Identical |
| BS EN IEC 60477-2:2022 | Equivalent |
| I.S. EN IEC 60477-2:2022 | Identical |
| UNE-EN IEC 60477-2:2022 | Identical |
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