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prEN IEC 60704-2-18:2021

Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-18: Particular requirements for electric water heaters

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IEC 60704-2-18:202X; prEN IEC 60704-2-18:2021
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This clause of Part 1 is applicable except as follows: Addition: These particular requirements apply to single unit electric water heaters for household and similar use intended for placing on the floor against a wall, for building-in or placing under a counter, a kitchen worktop or under a sink, for wall-mounting or on a counter. NOTE 1 Conventional electric water heaters with the use of Joule effect in electric resistance heating elements normally do not cause any noise emissions. However, there are products with noise producing components on the markets. Example of such components are motors and pumps. NOTE 2 Noise of control elements are disregarded because of the sporadic character and its normally very low sound level. This standard does not apply to: - combustion water heaters; - water kettles; - heat pump water heaters; - conventional electric storage water heaters as defined in 1 of IEC 60335-2-21 and - instantaneous electric water heaters without any noise producing components such as motors and pumps.
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