|
|
本帖最后由 H-RH 于 2013-8-22 13:24 编辑 ! _# u+ j5 ]! B& \5 m& h
# S$ ^( K8 r m
5 Classification of equipment2 `& D0 |* G6 k3 U" j$ P+ a
For the purpose of harmonic current limitation, equipment is classified as follows:
& r; W1 C, K9 P) _; ~8 ^& K+ CClass A:4 V9 v4 ~- A6 S6 H) [5 h/ f7 y
– balanced three-phase equipment;8 V+ l5 i1 i, L& \ q
– household appliances, excluding equipment identified as class D;3 Z& ^, N3 Y& N0 |5 e
– tools, excluding portable tools;: @6 J: V) |* ?6 @5 _" U
– dimmers for incandescent lamps;
) c- ]4 B1 [1 v7 N" u' p, t– audio equipment.
2 v: i( p! q8 b/ O h/ Z* lEquipment not specified in one of the three other classes shall be considered as class A
V5 J) E6 F) d# x9 V5 F; {equipment.6 y4 v, p r8 e/ h) \
NOTE 1 Equipment that can be shown to have a significant effect on the supply system may be reclassified in a
6 q3 q& x: p" u3 afuture edition of the standard. Factors to be taken into account include:* Y7 C7 p, s& F' w
– number of pieces of equipment in use;
4 e0 E* ?- b6 x– duration of use;, K8 B1 L, Y5 q8 y& g/ K
– simultaneity of use;
' [6 A( R) R# C7 U! P– power consumption;
9 _3 W; X) l. N( C– harmonic spectrum, including phase.
8 d& L8 a' @" v5 @: K. P; r# f2 h* E' z8 F- V$ @! I( n1 e$ I! g0 Q; X6 m
Class B:
6 J$ @5 `4 U: C– portable tools;
" K3 f6 W$ g1 U0 V# L: e– arc welding equipment which is not professional equipment.
6 Q5 w# |. u6 Y% k& ~/ n, V" `( X
* w% [: d2 H8 V$ I$ CClass C:
% |, b" @& o* x1 t8 l# F– lighting equipment.
- E9 U0 j% Y' L( l6 J( { e7 u+ R7 ]2 I3 l3 N! [3 g3 J
Class D:
; Q2 w' C( l/ }, A* I9 t+ s6 {Equipment having a specified power according to 6.2.2 less than or equal to 600 W, of the
+ g7 d; y {8 c% h( M( O( }following types:
' ]& V. E5 V, x. g6 J! Z! r– personal computers and personal computer monitors;
0 I B* ~' N7 {+ @) x2 [2 R4 P– television receivers.
( u+ l6 x' n. ^ c4 V% v |
|
/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
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