|
|
本帖最后由 H-RH 于 2013-8-22 13:24 编辑 6 e1 n! Z1 V' Q6 v: ]
0 Q& D% ~6 u7 c. z( Y0 K
5 Classification of equipment m. g" J0 }) T5 [5 g- [) ^
For the purpose of harmonic current limitation, equipment is classified as follows:; g$ K8 L8 P# l1 J6 H
Class A:1 u. e0 U) K" `% m; |. |
– balanced three-phase equipment; C) b" p. p1 l! |$ G
– household appliances, excluding equipment identified as class D;
' q( R0 d4 ?. j5 i0 f– tools, excluding portable tools;, V) r# a8 z/ i% @
– dimmers for incandescent lamps; v4 p3 d2 }+ H" p0 Y
– audio equipment.3 r! a* Y$ M2 x) D# }
Equipment not specified in one of the three other classes shall be considered as class A
, i: c; G% P' d" _2 Q3 Oequipment.
9 v( v, ^4 a' T" `2 rNOTE 1 Equipment that can be shown to have a significant effect on the supply system may be reclassified in a
( a3 a* `) K: m7 S1 |future edition of the standard. Factors to be taken into account include:5 g0 C8 K: |8 Z7 n' @( f
– number of pieces of equipment in use;# j" @+ b( R, @& l& C/ _
– duration of use;% E, @) P% {# J3 Q- E H
– simultaneity of use;
6 k6 O$ r9 s' K3 t* ]' |; B– power consumption;
5 ^9 ^/ G9 r, {+ e– harmonic spectrum, including phase.
( [0 E' ?; X6 g- r# U) q9 B* g6 v5 ~9 k/ U5 C. t# h7 v
Class B:
& J$ X$ {9 F* c+ e$ |, r8 T0 [' S– portable tools;
+ `1 A. V! L2 N4 A/ w# l# r– arc welding equipment which is not professional equipment.
4 k$ ]- @+ t, f) F* B, e. ], [/ V: }' t" [7 J2 X
Class C:
( X" G4 B5 o+ S4 P" w% P– lighting equipment.
0 c) E( l7 ]) ^ }8 {. R
4 b, M# D8 ~: p9 n9 g- k- TClass D:
0 z1 {6 v, N- U9 p8 f" UEquipment having a specified power according to 6.2.2 less than or equal to 600 W, of the8 l' _; d# i& X: o$ C4 E& |
following types:
# M' I! O7 [2 W7 K0 a– personal computers and personal computer monitors;
' Q) p r+ i4 P3 m– television receivers." T8 x7 Z! ]9 q! i1 p
|
|
/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 2013-8-22 10:55
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
发表于 2013-8-22 13:22
，学习了