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 6 Y+ Z" k& L' D, U

Endurance and thermal tests on apliances for purifying water usig an UV lamp # Q- a( w0 a% J0 S" q; Q9 r: d

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60335-1(ed.3) & 60335-1(ed.4) & 60598-1(ed.5) & EN 60335-1:1994 & EN 60335-1:2002 & EN 60598-1:2000 " m/ S' C( G" I

Standard: IEC 60335-1/1991
( ?- J% D; e6 I' K. }IEC 60335-1/2001
- l$ y5 G( z+ E- i  REN 60335-1/1994
EN 60335-1/2002
8 S1 @5 c! v3 f; s4 iIEC 60598-1/1999
" g$ j4 @" d* R; f- P( FEN 60598-1/2000
! U& C; _5 r* h; O* Y* `Sub clause: 11 - 19 12
, v) }. i: Y8 \& K& }Sheet N°: 109/06
Subject: Endurance and thermal tests on appliances for purifying water using an UV lamp
Key words:
- Thermal tests
8 d( v3 N0 `, m$ e- Abnormal conditions
' P# Q6 U# @& A, v+ p- Temperature of water flowing
Meeting: Decision confirmed at CTL 41st meeting
6 h' X! `; R, e. x: M, z) l: OQuestion: 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
3 ^# L. J  m4 ]( `& v- S) [5 f4 Haccordance with the manual instructions). What should be the temperature of
the water during the thermal tests?
9 Z" A7 r3 i( B8 E3 pDecision: The applicable standard is IEC/EN 60335-1. The thermal tests have to be
% s% v  `3 n: H" Ocarried out according to clause 11 (heating) and clause 19 (abnormal
conditions) of IEC/EN 60335-1. If according to the manual instructions the
appliance can be used without water flowing, we have to consider this situation
. z% s* E" Z* F! Gas worst case: all tests have to be performed without water flowing. At the
, [$ Q/ g# C6 @. D* |7 P, P! wbeginning of the tests, the water shall be at room temperature (25°C). If the
, P0 b' J- j! a. ?8 f1 Oappliance is provided for use with water flowing only, the heating test (clause
; B1 q' D: N% H% g3 _# ~* r11) shall be started with water at room temperature (25°C) but flowing. For the
# E. {7 B7 g- Y9 G, qabnormal 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
5 A$ F8 ?: L* Tflow interruption. At the beginning of the test the water shall be at room
' w$ e! i% x! I/ Y: R9 [temperature (25°C).