|
|
|  DSH 374
8 b' p" K3 u& D. Z+ z+ f1 n% F8 Y: u5 h/ m6 U5 g2 H8 g
| Normal load conditions
7 x8 A: n* \& X0 l2 i, o | 4.11
+ H. q0 ^/ C9 R G5 ] | 60335-2-40(ed.2) & 60335-2-40(ed.3) & 60335-2-40(ed.4)+ O6 R! H- L+ Y) M
|
+ B& [0 Y7 s2 D3 {1 x( XStandard: IEC 60335-2-40
! b6 r" z8 m) eSub clause: 4.11' {. j" q, b5 e L! j! q4 z8 D0 }
Sheet n. 374 Page 1 (1)# l2 ]2 k4 w/ W: E. [* D
Subject: Normal load conditions
! L* d( W% I' j# V- \5 WKey words: - Worst condition - Manufacturer data
% _2 q5 m! _9 T$ }Decision confirmed at CTL 38th meeting
8 j* [1 i" `( q" U7 r( X/ OQuestion:
) |, S9 I4 p" KAir conditioners are required to be tested at the worst conditions within the range advised by the manufacturer.
- M3 a5 \" `9 L3 ]* A' n& qSome laboratories are carrying out extensive testing (up to 50 load tests) to determine the worst condition' |' T+ O4 K0 c; l7 u
within the specified environmental range.
! X* A# d1 ]6 r$ NIs this degree of testing required? Can the manufacturer advise of the conditions that are most likely to produce
: c2 b9 b% g. y3 }worst conditions (highest compressor current) and the laboratory carry out verification tests over a small8 S o1 q6 k: O* N4 \! S
environment range?! k9 x0 n) N l$ [
Decision:+ k" v0 w; [: K
Manufacturer’s data and advice may be used to ascertain the worst case for loading within the specified& ?5 [: S4 | @6 e
environmental range. Laboratories must confirm the operating conditions but do not need to conduct extensive, V# s$ `, o3 E$ W. I3 c$ p
surveys over the whole operating range., }0 g0 ?# }. p; D2 w7 R0 ^
6 n. J1 q+ O: K$ y
+ Y" t; f7 M$ P. x; `; P |
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