CENELEC - EN IEC 60704-2-7
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-7: Particular requirements for fans
|Publication Date:||1 March 2020|
|ICS Code (Ventilators. Fans. Air-conditioners):||23.120|
|ICS Code (Noise emitted by machines and equipment):||17.140.20|
This document applies to electrical fans (including their accessories and their component parts) for household and similar use, designed for AC or DC supply.
The motor, the impeller and their housing, if any, form a single unit.
These particular requirements apply to:
- conventional fans,
- table fans,
- pedestal fans,
- ceiling fans,
- bladeless fans,
- wall bracket fans,
- ceiling bracket fans,
- louver fans,
- tower fans,
- ventilating and partition ventilating fans.
This standard does not apply to:
- fans that are part of a ventilation system,
- fans designed exclusively for industrial purposes,
- fans that are part of an appliance (for example cooling fans),
- fans with additional functions (for example heating, humidifying).
Limitations for the use of this test code are given in the scope of IEC 60704-1.
Type of noise
The methods specified in ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring noise emitted by fans.
Size of source
The method specified in ISO 3744 is applicable to noise sources of any size. When applying ISO 3743-1 and ISO 3743-2, care should be taken to ensure that the maximum size of the appliance under test fulfils the requirements specified in 1.2 of ISO 3743-1:2010 and 1.3 of ISO 3743-2:1994.