MT 4 - TC 59/SC 59L/MT 4

IEC 60879:2019 specifies the performance-measuring methods of comfort fans and regulators for household and similar purposes, including conventional fans, tower fans and bladeless fans, their rated voltage being not more than 250 V for single-phase fans and 480 V for other fans, and their rated power input being less than 125 W.
According to the testing method, the comfort fans are classified into two groups:
– pedestal fans, table fans, wall fans, louvre fans, tower fans, bladeless fans;
– ceiling fans.
Wherever applicable, the term "fan" used in this document includes its associated regulator, if any.
This document does not apply to:
– safety of electric fans for household and similar purposes (IEC 60335-2-80);
– performance of ventilating fans (IEC 60665);
– electromagnetic compatibility of fans (CISPR 14-1 and CISPR 14-2, IEC 61000-3-2, IEC 61000-3-3).
This second edition cancels and replaces the first edition published in 1986. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the definitions of fans have been revised;
b) the test methods for the different types of fans have been revised to allow modern test instrumentation to be used;
c) acoustic noise measurement and standby power measurement methods have been introduced.

IEC 60665:2018 specifies the performance and the corresponding methods of test of AC ventilating fans for household and similar purposes intended for air forcing and exhaust, driven by single-phase AC motors having a power consumption of less than 125 W (including any associated regulators) for use on single-phase AC circuits not exceeding 250 V.
This document applies to ventilating fans such as partition fans for walls and windows and duct fans.
This document does not apply to:
- the safety of electric fans for household and similar purposes (IEC 60335-2- 80);
- the performance of comfort fans (IEC 60879);
- range hoods and other cooking fume extractors (IEC 61591);
- airborne acoustic noise for fans (IEC 60704-2-7);
- electromagnetic compatibility of fans (CISPR 14-1 and CISPR 14-2, IEC 61000-3-2, IEC 61000-3-3).
This second edition cancels and replaces the first edition published in 1980. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the test chambers have been updated;
b) a test chamber for a type D fan is introduced.