|
|
|  DSH 3747 @( X4 Z6 Z' v
9 t/ g1 G ?. C; f* M8 Q
| Normal load conditions
* {0 e& h$ t' S! y5 [) ?* k | 4.11
% y( {) [5 |( L) u B | 60335-2-40(ed.2) & 60335-2-40(ed.3) & 60335-2-40(ed.4)& ]' L4 _; }0 J8 B
|
- d8 z( T! A7 s' _% L7 C) l
Standard: IEC 60335-2-40
. L# O1 a. Y5 t, X* X0 ^4 D* p& CSub clause: 4.11
. O+ S9 R" c/ d9 g. hSheet n. 374 Page 1 (1)! K- b# q- j" ]; [: W
Subject: Normal load conditions
! l4 u6 o. l9 IKey words: - Worst condition - Manufacturer data6 F# N5 B; \0 X! o# O T
Decision confirmed at CTL 38th meeting/ @, Z8 \0 f* \1 R" A
Question:
+ @, U9 W: d# `8 P) V) j7 mAir conditioners are required to be tested at the worst conditions within the range advised by the manufacturer.
' h" [* m% F" O% F8 ySome laboratories are carrying out extensive testing (up to 50 load tests) to determine the worst condition
8 r0 \1 \4 G0 s7 Rwithin the specified environmental range.6 ]0 r- l3 S2 [' r6 m/ W8 E
Is this degree of testing required? Can the manufacturer advise of the conditions that are most likely to produce
: Y9 G9 R, L; |; _& {* Aworst conditions (highest compressor current) and the laboratory carry out verification tests over a small7 X$ W; y/ K! Z6 i0 u
environment range?% `, g' G! x# V# l$ m- u$ E# x6 I: O
Decision:
7 e% i4 D5 w. f3 e) h$ g+ UManufacturer’s data and advice may be used to ascertain the worst case for loading within the specified6 x* C7 M9 w- t2 Z/ @
environmental range. Laboratories must confirm the operating conditions but do not need to conduct extensive' y$ F, |0 y$ f( `2 q/ E# d* t# c+ k4 U1 o
surveys over the whole operating range.+ l- q6 v$ G3 T* k7 l9 t% ~
: P. M3 O' a6 y
# {. j. r1 {) C2 \- }% \
|
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