DSH 642 Markings

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 642 6 B+ ?* K" p7 }9 [% \. W 1 P: Y5 P2 p: a8 B# ~+ w

Markings

6.1.1 q)

61643-1(ed.2) , y7 C) {3 u. s4 @4 |

* b4 `4 G9 X, s2 W! TStandard(s)-(year and edition):
IEC 61643-1, 2nd edition, 2005-03
Sub clause(s):
6.1.1 q)
" o' Z1 }8 F# w" x* g% c& b8 xDSH 642
Subject:
Markings
Key words:
! L: I3 e! C" {& O" y- marking
- frequency
6 X: {" ^; `& A7 A/ B3 \3 J; sApproved by the 45th CTL plenary meeting 2008
- y/ F. O' R8 \9 jQuestion:
) V0 x+ e2 C8 }5 n' c1 T! C- ]: Q2 WIs it acceptable to mark only the type of current (e.g. a.c. or ~), but without giving the frequency?
9 Z1 Y/ ?# f& g' H! k7 JRationale:
% F  K; S' k8 y4 a4 [* o# PThe standard itself limits to the frequency range of 48-62 Hz a.c.:
2.1.1 Frequency: frequency of the supply mains is between 48 Hz and 62 Hz a.c.
. K# o6 A. _2 s: Y) A. YThe marking requirement in the English IEC version reads:
7 R- K, j, m1 P5 @$ }6.1.1 q) Type of current: a.c. frequency or d.c., or both
0 {, i; p2 }! _/ j( j1 R( KThe marking requirement in the French IEC version reads:
8 r% z# X' {  H. l6.1.1 q) Le type de courant: alternatif, continu ou les deux
4 }$ i+ @5 ?2 k7 IThis means only the English IEC version requires to mark the frequency.
3 ?1 ^3 D+ y- v, f# C' P- wDecision:
  g- N$ y) [/ N3 q3 Y# gYES, it is acceptable to mark only the type of current (e.g. a.c. or ~) without giving the frequency, as the frequency is limited to the range of 48-62 Hz anyway and there is no safety implication.
1 m/ f( R3 p8 Q6 Z0 b

1 ~: Q) \0 C# p) [8 f