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IEC 60335-2-84(Household and similar electrical appliances – Safety –Part 2-84: Particular requirements for toilets)也允许用电极加热的:
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Liquids may be in direct contact with live parts of bare heating elements and may be heated using electrodes.
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27.1 Addition:
$ L1 D% m; F" ~ g/ u* I% R) |For class I appliances incorporating water heaters having bare heating elements, the water
/ D( j/ ]. m% L$ Z5 ?& R. J) P* M' |6 Eshall enter and leave through metal pipes that are permanently and reliably connected to the
5 P9 k9 c8 X7 a! p' V2 {6 Xearthing terminal or flow over metal parts that are similarly earthed.
: I9 d' D* |/ B0 M9 J$ l# V: eNOTE 101 Examples of such metal parts are grids or rings.
1 v2 w" A$ b7 UNOTE 102 Parts that are liable to be in contact with excrement are considered to be accessible. |
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