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) T& x. u6 ?$ n9 m" N' s3 i! a! A( AQuestions:
+ X1 m: [: Z2 S$ o( T1. Does ETF4 agree that the ambient temperature at the switch head (Tmax) and the mounting* D: b3 E. X- W* X
surface temperature (Ts max) shall be declared and specified by the component manufacturer$ n8 G9 B& A( s) {3 Y- _
as a temperature rating?
5 U+ e" p: ^% s0 B \+ E! d4 o: ]' x2. Does the ETF4 agree that the declared value Tmax shall be independent of the mounting6 D' h2 |/ s, D" D: S/ c9 k
temperature (Ts max) of the control?% F) m' B, r: @/ v H/ \! T9 C
3. Does ETF4 agree to add a note to clause 2.3.30 in order to clarify that Tmax shall be
/ z9 l/ x2 o( ?independent from Ts max ?
$ J% [& n1 P' j7 W6 j2 @2 N6 ~4. Does the ETF4 agree that it is the responsibility of the appliance manufacturer to ensure that$ q; ]: s, I6 O% Z5 @) X
the Tmax and Ts max values declared by the component manufacturer are met when
) T) c- G. m$ T4 Y7 Pincorporating the temperature sensing control in the end-user appliances through testing?- I( {4 @! e4 C5 L) ^) [, b' c" j
5. Does the ETF4 agree that the component manufacturer’s declared Tmax value and the
1 T( r, l! b! kmounting surface temperature Ts max shall be independently maintained during the heating test: }7 q9 f+ E9 E# m: f
of clause 14?7 F6 H& c. W' l9 c5 w6 R8 d: I. ]$ h
IEC System for Conformity Testing and Certification
0 b2 V5 f1 a. y9 j& p ?/ ~$ pof Electrotechnical equipment and Components
' S' H( I- y! G8 J9 C7 b% LCTL-OP 106 Ed 9.2 2/5 © IEC – IECEE 2013
2 f8 Y& P6 `! @8 \1 x* {9 M2013-05-24
' D4 _$ o. n0 u6. Does the ETF4 agree that the maximum temperature at the control’s connection tabs (Ttab max)
+ E) |; ]) }5 H" w7 Tshall only be a function of the declared Tmax temperature and the added heat rise under rated
[1 o9 m; T; `5 wload measured at the tabs of the controls at steady state, while independently maintaining the
: U- H* ]- X4 v! ^. O. drated Tmax and Ts max during the heating test?
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发表于 2017-1-6 15:51
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