|
|
I think your question can refer to EN60601-1/IEC60601-1 in 4.10.2.& o, q2 x, l0 c$ K. l/ V; H
Please correct me if any.' `' K4 m R: N$ a4 O' @' I8 V
Thanks,
9 Q6 p# S2 w" Q. u
) W5 F. M3 _+ DFor ME EQUIPMENT intended to be connected to SUPPLY MAINS, the following RATED voltages
# T& y: ]5 G5 n/ Ushall not be exceeded:/ W! G; M J% l/ @- k/ S5 ~
– 250 V for HAND-HELD ME EQUIPMENT;1 p9 s" y b, k3 {
– 250 V d.c. or single-phase a.c. or 500 V polyphase a.c. for ME EQUIPMENT and ME SYSTEMS& U: E' _4 x- ^8 B2 {" f
with a RATED input ≤ 4 kVA; or
6 }9 F. l/ Z2 u- u( @– 500 V for all other ME EQUIPMENT and ME SYSTEMS.
X* Y5 W! T: ~( O9 B: bSUPPLY MAINS in this standard shall be assumed to have the following characteristics:
0 g4 s- r1 Q9 O; s m, Q' Y& P/ c– overvoltage category II for mains transients unless a higher category is specified by the5 _. t) n3 w! x4 G
MANUFACTURER;
4 R* q' _- V4 z9 S6 ^– no voltage in excess of 110 % or lower than 90 % of the NOMINAL voltage between any of3 z6 O1 y% w2 }5 A0 G
the conductors of the system or between any of these conductors and earth (see 7.9.3.1);* a+ ~ w6 i9 \0 a
NOTE 1 IEC 60601-1-2 contains requirements and tests for voltage dips, short interruptions and voltage
) m$ M' Y6 w6 j( ]( pvariations on the SUPPLY MAINS. See also 1.3.
; I$ R n8 Z4 c/ i– voltages that are practically sinusoidal and forming a practically symmetrical supply9 C+ [: C. Y: n# G9 e. G9 v
system in case of polyphase supply;
4 Z) ^; ?. d; _+ E2 f* [– a frequency of ≤ 1 kHz;3 _1 `0 K6 ^8 s2 G
– a frequency deviation of ≤ 1 Hz from the NOMINAL frequency up to 100 Hz and ≤ 1 % from
( R m% Z6 Z8 m2 r5 q( U% g' hthe NOMINAL frequency from 100 Hz to 1 kHz;) ~) K5 [; U% P
– the protective measures as described in IEC 60364-4-41;' U, S1 q0 B8 r/ a& }( {
NOTE 2 If ME EQUIPMENT or an ME SYSTEM is intended to be operated from a SUPPLY MAINS with
$ T8 I* M( v' Y' g! K, w* Vcharacteristics different from the SUPPLY MAINS described in this subclause, additional safety measures could
7 {( W. H0 Y' Q' }be necessary.
0 R8 Y+ j, u9 U' m– a d.c. voltage (as measured by a moving coil meter or equivalent method) having a peakto-; d ^, B* d- h9 }
peak ripple not exceeding 10 % of the average value.
5 _, z" x3 g2 ~/ Z+ N9 X) cWhere peak-to-peak ripple exceeds 10 % of the average value, the peak voltage has to be; W. _" s8 s! r
applied. |
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2013-1-31 09:36
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
楼主
