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

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DSH 109/06 + W7 k9 Q! f. s6 m$ O: l4 X- D 5 o7 z; m$ K) x- L( ]8 [

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

11-19 / 12 5 _0 Y6 M$ X1 U. ^( G) Y" n* \, J: a* a

60335-1(ed.3) & 60335-1(ed.4) & 60598-1(ed.5) & EN 60335-1:1994 & EN 60335-1:2002 & EN 60598-1:2000 - N" ~4 {& r6 P0 l; D

( m, c+ [. R9 K. K4 {$ OStandard: IEC 60335-1/1991
IEC 60335-1/2001
- @3 i1 b5 t; J0 I+ V4 REN 60335-1/1994
EN 60335-1/2002
4 P" `, n7 c+ b% B$ G) j  k9 J- T) lIEC 60598-1/1999
1 Y  j3 |: u- }EN 60598-1/2000
Sub clause: 11 - 19 12
Sheet N°: 109/06
Subject: Endurance and thermal tests on appliances for purifying water using an UV lamp
$ T$ @. U1 m' h: g: U+ cKey words:
9 V; V- m0 ^- {3 C+ g1 O7 h5 b- Thermal tests
- Abnormal conditions
- Temperature of water flowing
8 S& O8 X" l1 P8 \6 `: f( ?! [Meeting: Decision confirmed at CTL 41st meeting
+ h1 @0 t! H: ~. ^* C! YQuestion: The appliance for purifying water is equipped with an UV lamp (with its
accessories). The unit can be used with or without a constant water flowing (in
; u* W, y5 x8 I' _8 Waccordance with the manual instructions). What should be the temperature of
the water during the thermal tests?
Decision: The applicable standard is IEC/EN 60335-1. The thermal tests have to be
( q8 z" t$ D. ucarried out according to clause 11 (heating) and clause 19 (abnormal
) i1 n0 r6 K: L9 k" |7 W1 wconditions) of IEC/EN 60335-1. If according to the manual instructions the
6 Z2 i% j) K+ ~3 e# mappliance can be used without water flowing, we have to consider this situation
- d. Z3 S$ W5 p4 R' Nas worst case: all tests have to be performed without water flowing. At the
beginning of the tests, the water shall be at room temperature (25°C). If the
appliance is provided for use with water flowing only, the heating test (clause
11) shall be started with water at room temperature (25°C) but flowing. For the
abnormal 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
flow interruption. At the beginning of the test the water shall be at room
: b* K# e, J& @# G+ ^temperature (25°C).
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