|
|
|  DSH 3743 q" I. F: N5 | d! Q
% d) Z4 e" K) h" _( u) V+ Z
| Normal load conditions) d" y/ F0 f: y( f, `
| 4.11! G$ f- |8 p* C3 t
| 60335-2-40(ed.2) & 60335-2-40(ed.3) & 60335-2-40(ed.4)" r. l$ G: q0 ?
|
% [# j2 f4 a; _% b
Standard: IEC 60335-2-40
' _! L; Z. G. T- z! }# vSub clause: 4.111 }% I% r/ q$ i' p5 [8 ~9 |
Sheet n. 374 Page 1 (1)
+ N+ V) \3 ~9 U* RSubject: Normal load conditions ^% @1 L" f+ Y
Key words: - Worst condition - Manufacturer data
/ |7 P1 Y5 ~! TDecision confirmed at CTL 38th meeting1 N1 x0 k* B) Z
Question:! f$ ]6 V, A+ ^6 M8 v
Air conditioners are required to be tested at the worst conditions within the range advised by the manufacturer.: g( i& W8 B$ h8 V/ X* H9 r
Some laboratories are carrying out extensive testing (up to 50 load tests) to determine the worst condition
7 J- v' h5 e. Z* O7 Swithin the specified environmental range.: C" H; u }$ _' ^- O0 U/ R4 d
Is this degree of testing required? Can the manufacturer advise of the conditions that are most likely to produce5 j2 e8 t) V: f( l6 r
worst conditions (highest compressor current) and the laboratory carry out verification tests over a small
% o% o% l* w+ c% A; v6 Yenvironment range?5 V' P4 F @& a9 u9 U) U
Decision:
, H2 i6 `3 C- _3 RManufacturer’s data and advice may be used to ascertain the worst case for loading within the specified; d# l2 N4 I& h- [4 h: s1 L- G
environmental range. Laboratories must confirm the operating conditions but do not need to conduct extensive
5 t3 w$ h8 v+ ?surveys over the whole operating range.& ~. }3 S$ {: q, s& o* S: ^
3 K. y$ j2 K& C6 a
n$ [4 v, Z) n( o0 d
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有帐号？注册安规
x
|
/2 
|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 2012-9-14 13:10
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