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|  DSH 5450 R0 P7 R2 C- s$ Z1 G$ m' } o1 f1 e
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| Application of Clause 22.102 for appliances with defrost heaters of glass tube construction3 B8 Z) R; Z5 i5 O" n% f
| 22.102: H; Z. S" O. a1 U8 F
| 60335-2-24(ed.4) & 60335-2-24(ed.5) & 60335-2-24(ed.6)
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3 P' o/ c8 Q' R# U: I/ t; tQuestion:
" q% u P" ~# |2 q, ?8 fThe requirement of Clause 22.102 reads: “Insulated wire heaters and their joints located in, and in' F# o% O' v- r$ o7 k; y
integral contact with, thermal insulation shall be protected against entry of water”.
, @( Y9 Q0 U7 j/ w2 b1 E1 PThe refrigerator/freezer is of the indirect cooling type with the evaporator located outside the food1 W$ T, k: y+ ]+ Q
storage compartment. The heater is protected against water by a metal “roof”. See the photographs of9 P9 q0 @+ ~2 I( q: E9 K4 `% Q
the construction on page 2. Must a defrost heater with an un-insulated heating wire, mounted in a glass
$ P7 m" T* `$ J9 btube and located below the evaporator comply with the above requirement?
1 u* k) o0 r: \; K& Q* g# D- mDecision:
* W7 e/ J, E& ^/ g+ xThe construction of the defrost heater complies with 22.102. No amendment of the requirement is' b4 J$ k- W% T! f2 j q
needed.! Z$ _' z% [. t, \0 y& M
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发表于 2012-9-9 16:08
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