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|  DSH 474
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| General conditions for the tests0 I' h# p% V( v6 R' n8 u
| 4.12
0 H0 Q; C/ S* K( N7 o& o0 U | 60335-1(ed.3)
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Standard: IEC 60335-1:1991, 3rd Ed.- C6 ]) h4 A" G; [0 s
Sub clause: 4.12
# ]0 J2 L: j$ N" {& nSheet No. DSH-474
5 ^# `' \$ q$ W1 t5 OSubject: General conditions for the tests H; _7 {0 |8 D1 \
Key words: - supply voltage$ |* V8 Y" V) L+ V7 w* p9 Z2 ]2 t7 ]9 u
Decision taken at the 40th CTL meeting 2003
0 r) j# ?1 N4 M5 O4 H+ eQuestion:
, Q* r. W. m& Z" r. z/ |In the case of heating elements without appreciable positive temperature coefficient of
# x9 M, ]/ A. h9 c5 O& ?6 Z+ ]: Xresistance, should the supply voltage be adjusted during performance of the test?( C: f2 u% h$ ]0 J! g1 p
Rationale:
: q7 w+ k& Y! L/ R; XSee question.) o3 G0 v, ^+ c
Decision:( L, \6 ^' M+ q, o
The voltage shall be continuously adjusted to obtain the intended input.
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