Particular requirements for kitchen machines
IEC 60335-2-14-2019 pdf download.Household and similar electrical appliances — Safety — Part 2-14: Particular requirements for kitchen machines
Appareils électrodomestiques et analogues — Sécurité — Partie 2-14: Exigences particulières pour les machines de cuisine.
The test probe is not applied to feed openings having a throat with the following dimensions:
— a height of at least 100 mm, measured from the upper edge of the cutting blade:
— an average of the maximum and minimum cross-sectional dimensions of the feed opening that does not exceed 65,5 mm;
— a maximum cross-sectional dimension of the feed opening that does not exceed 76 mm.
For blenders, detachable parts. except lids, are not removed. The test is carried out with a test probe similar to that of test probe B of IEC 61032 but having a circular stop face with a diameter of 125 mm instead of the non-circular face, the distance between the tip of the test finger and the stop face being 100 mm.
20.101 Accessories for cream whippers, egg beaters and hand-held food mixers shall not have knife edges. unless a suitable guard prevents accidental contact with their rotating parts.
It shall not be possible to release beaters, kneaders and similar accessories of hand-held food mixers by pressing a button or a similar action while the accessory is rotating at a speed exceeding 1 500 r/min.
Compliance is checked by Inspection, by measurement and by manual test.
If compliance relies on the operation of an electronic circuit the appliance is further tested as follows.
a) The appliance is supplied at rated voltage and operated under normal operation. The electromagnetic phenomena tests of 19.11.4.2 and 19.11.4.5 are then applied.
Beaters. kneaders and similar accessories of hand-held food mixers shall not be released or be capable of being released by a single action during or after, as appropriate, the electromagnetic phenomena application.
b) The appliance is supplied at rated voltage and operated under normal operation.
The fault conditions in a) to g) of 19.11.2 are then applied one at a time to the electronic circuit monitoring the release mechanism.
Beaters. kneaders and similar accessories of hand-held food mixers shall not be released or be capable of being released by a single action during the test.
If the electronic circuit is programmable, the software shall contain measures to control the fault/error conditions specified in Table R. I and is evaluated in accordance with the relevant requirements of Annex R.
20.102 Blades of hand-held blenders shall be completely screened from above and shall not be able to touch a flat surface while rotating.
Compliance is checked by inspection and by applying a cylindrical rod from any position between the vertical and an angle of 450 to the upperside of the blending blade. The rod has a diameter of 8,0 mm ± 0,1 mm and unlimited length.
It shall not be possible to touch the blades with the end of the test rod.
20.103 Hand-held blenders other than hand-held food mixers provided with a blender attachment shall incorporate a biased-off switch, its actuating member being positioned in a recess or otherwise guarded to prevent accidental operation.
Compliance is checked by applying a cylindrical rod, having a diameter of 40 mm and a hemispherical end, to the actuating member of the switch. The test rod is applied with a force not exceeding 5 N. The appliance shall not operate.
20.104 It shall not be possible to inadvertently operate the cutting blades of blenders, other than hand-held blenders, when they are accessible.
Compliance is checked by the following test applied to blenders other than hand-held blenders
With detachable parts removed, if the cutting blades of the blender can be touched with the test probe specified for blenders in 20.2. it shall not be possible to operate the appliance.
Switches, other than biased-off switches, are placed in the on position and two simultaneous or sequential applications of test probe B of IEC 61032 are applied to biased-off switches, including interlock switches, with a force not exceeding 20 N in an attempt to operate the cutting blades.
During the test, it shall not be possible to operate the appliance.
20.105 Centrifugal juicers shall be constructed so that covers do not open due to vibration.
Rotating parts shall be secured so that they are not liable to become loose during operation.
NOTE Fastening of screws and nuts In a direction opposite to the direction of rotation of the rotating parts is considered to be sufficient.
If parts rotate faster than 5 000 r/min, tools for fastening them shall be such that covers can only be closed after the tool has been removed,
Teeth of grating disks shall have a height not exceeding 1,5 mm. Ejectors on filter drums shall not project by more than 4 mm.IEC 60335-2-14-2019 pdf download.