DSH 508 Moisture resistance
http://decisions.iecee.org/icons/ecblank.gif DSH 508
Moisture resistance
15.1.2
60335-1(ed.3)
Question:
What are the test conditions for appliances that are normally ceiling mounted ?
Rationale:
See question.
Decision:
Ceiling mounted appliances are mounted in accordance with IEC 60335-1/1991, sub-clause
15.1.2, as for appliances fixed to a wall. Ceiling mounted appliances are mounted in their
operating position. The rear part shall be covered and sealed around the mounting plate.
The requirements for IPX4 are checked in accordance with IEC 60529, sub-clause 14.2.4.
The requirements for IPX3 are checked in accordance with IEC 60529, sub-clause 14.2.3,
but the oscillating tube is oscillated as for IPX4, detailed in IEC 60529, sub-clause 14.2.4.
Alternatively, IPX3 and IPX4 requirements can be made using figure 5 of IEC 60529.
IPX2 requirements are not applicable for ceiling mounted appliances.
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