DSH 279 thermal cut out requirements

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DSH 279 7 q: [8 _3 }4 ?3 O' P1 C

thermal cut out requirements

24.101

60335-2-61(ed.1) 9 q4 s' F2 y& d2 F

Standard: IEC 60335-2-61:Ed. 1.0 Sub clause: 24.101 Sheet n. 279
Page 1 (1)
Subject: Thermal cut out requirements
Key words: - thermal cut-out   - self resetting
" @0 i, n( l6 _% rDecision n.20 taken at 36th meeting/1999
5 x8 d! {0 y: @* e, F3 L+ I6 }5 ZQuestion: sub clause 24.101 reads: “if thermal cut-outs which limit the temperature of the
; p+ A& @  j; Y" u; Dcore are incorporated, at least one shall be of the non-self –resetting type”.
5 g. X& a) M4 _2 H  G% HDoes this mean that:
1.1 It is not necessary to incorporate a thermal cut-out in a thermal storage heater.
: P6 w; k. b7 ~* O1 Y) J" ?. s1.2 There is no obligation to incorporate a thermal cut out of the non self resetting
+ l# X' K7 R, B: k) o4 {type, if, to fulfil all the requirements of the standard, the appliance is equipped with
a second thermostat or temperature limiter.
2. At least one thermal cut out has to be of the non self resetting type, if the appliance
  ]2 x  Q% J& V8 @; Ois equipped with more than one thermal cut-out
Decision:
1.1 Yes
4 m9 o0 f, Q# H1.2 No, at least one of the control devices which operate during clause 19 (when control
devices operating in clause 11 are short-circuited) shall be non self resetting.
2. Yes
6 O9 R; m% _$ a% q  N4 z9 |