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Performing the a test on multifunction shower cabinet with a vaporiser according to IEC 60335-2-105 requirements, level sensor of the vaporiser is in a direct contact with water as well as earthed metal enclosure of a vaporiser. According to the requirement of-sub-clause 22.33 conductive liquids which are accessible in normal-use shall not be in direct contact with live parts. Any energized part is considered to be a live part regardless of the voltage. Level sensor is connected to SELV parts over »Black Box«. 1 x: N0 s2 d( RSince the is some doubts that the actual requirement of the sub-clause 22.33 spatially wording "not be in direct contact with live parts including SELV parts" and "energized" in our case over "Black Box" is fulfilled:% R5 G; ]& ?$ t& X2 X" e6 \
- Are the parts separated with protective impedance also energized?$ p0 }5 j% R! O
- Which are the insulation requirements for "Black Box"? # {5 T+ h a9 \) `Decision:2 \8 Q6 C1 n9 ~3 o$ e
This construction is acceptable if only vapour is in contact with the people inside the cabinet. 5 r$ Q) Q+ F" w* X( V, w' H0 ?; p) d: i$ m! m1 D$ k n1 _% S
[attach]75760[/attach]# I6 Y3 _& [( q3 s s2 V' u
DSH 577