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|  DSH 614
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| Abnormal operation
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| 60335-2-69(ed.3)8 b3 O( [5 n! s+ L: F% q9 n/ i) B9 o
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Question:
2 X" X, U1 s4 l7 i9 nIn sub clause 19 of EN 60335-2-69 the overflow test of sub cl 15.2 has to be made again with the shut-off device made inoperative. This should be done for a period of 5 min, after the container is filled completely.* s b8 w; g. I% ~( |/ y7 l0 I) s: E7 W
In the past the same test was mentioned in the EN 60335-2-2. Because there were a lot of problems with the temperature rise of the windings of the motor, sometimes the motor was burnt, a proposal was made to reduce the time to 30 s. (see EN 60335-2-2:2003 sub cl 19.101 household water suction appliances). It was accepted because the meaning of the test was to look if the overflow of the water, should give a hazard situation.
, C2 {; {: ^& ZBecause the same situation is present in commercial water suction cleaners, is it possible to apply the same during test stated in 19.101 of EN 60335-2-2 (30 sec) for commercial water suction cleaners?- p; Z2 U. ^' e+ C
Rationale: see question
( \1 J: i$ z# z5 n& [2 CProposal (if any):: j' e6 s: g# Z2 t& G" _! }2 L9 s
The standard is clear. The test should be performed for the time stated in the current standard (5 min) avoiding the burning of the motor.' [! |& n I, R4 M$ @, T& f
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发表于 2012-9-8 18:02
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