DSH 109/06 Endurance and thermal tests on apliances for purifying water usig an

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IEC60335试验指甲

DSH 109/06 7 h& _  ^' L: o* J, Y3 ~

Endurance and thermal tests on apliances for purifying water usig an UV lamp

11-19 / 12

60335-1(ed.3) & 60335-1(ed.4) & 60598-1(ed.5) & EN 60335-1:1994 & EN 60335-1:2002 & EN 60598-1:2000 6 ]) @0 O7 ?6 J2 \

Standard: IEC 60335-1/1991
IEC 60335-1/2001
EN 60335-1/1994
EN 60335-1/2002
IEC 60598-1/1999
EN 60598-1/2000
4 s) e: e& q$ Z( C0 J6 v6 cSub clause: 11 - 19 12
Sheet N°: 109/06
  {' P) R& t+ ]! R1 _Subject: Endurance and thermal tests on appliances for purifying water using an UV lamp
Key words:
1 K$ s- s8 d1 [. K# |0 U' m& m- Thermal tests
8 T3 n- D; M, @" f' d" s& e- Abnormal conditions
- Temperature of water flowing
Meeting: Decision confirmed at CTL 41st meeting
8 Y  C$ I+ @# z. _& f7 ?Question: The appliance for purifying water is equipped with an UV lamp (with its
  h0 [) V6 `- c) }accessories). The unit can be used with or without a constant water flowing (in
accordance with the manual instructions). What should be the temperature of
the water during the thermal tests?
" H; M$ g0 w5 Y8 @2 |Decision: The applicable standard is IEC/EN 60335-1. The thermal tests have to be
1 W3 D- g% l5 W% o7 I7 c' hcarried out according to clause 11 (heating) and clause 19 (abnormal
2 r: a- v+ U- M8 L2 |9 fconditions) of IEC/EN 60335-1. If according to the manual instructions the
! y6 T9 ]7 e. X2 i; _appliance can be used without water flowing, we have to consider this situation
" G  {7 T) |& Zas worst case: all tests have to be performed without water flowing. At the
  l- w. a1 C# j6 D7 r: Gbeginning of the tests, the water shall be at room temperature (25°C). If the
& i; x0 l5 v1 P# r& V2 mappliance is provided for use with water flowing only, the heating test (clause
3 Z2 T8 s; v/ U* m9 L11) shall be started with water at room temperature (25°C) but flowing. For the
) }/ }; Y7 h5 g- Z# ]8 R$ d% Pabnormal conditions test (clause 19), the water flowing has to be stopped
unless there is a monitoring circuit to switch off the appliance in case of water
# A, O  g- @4 Dflow interruption. At the beginning of the test the water shall be at room
temperature (25°C).
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