|
|
各位同学，: A5 q* M5 U; R. Y- b' j3 ~
64.4.2 Each product is to be operated at room temperature for 3-1/2 hours. The product is then to be2 T3 v( U! h) z
de-energized and immediately submerged in at least 304.8 mm (1 foot) of water. The temperature of the
# G& m+ f5 Q( D7 N, ^ [water before submersion is to be 5°C (41°F) or less. The product is to remain submerged for 4 hours. At6 R( P8 w7 t9 V( i
the end of four hours, the product is to be removed from the water and subjected to 2 additional cycles3 V, s' ]/ J* T8 g5 @- J4 H1 |
of operation and immersion. Between each cycle, the product is to be placed in a dry location at room
2 P) u& c+ ^, E! R2 @* P5 dtemperature for approximately 16-1/2 hours. The product is to be inspected immediately after the third$ ~% I" k* [$ {0 }6 [3 q" j! R
immersion for evidence of water entry.! s* k, I1 k; H# \* |* v' V
; g2 }7 m$ [: u3-1/2 hours.是指2.5小时还是3.5小时呢？
; N' c6 m2 I! U+ a7 g/ t/ o
, `6 O- j6 g9 ]( D' Y0 Z谢谢！1 ^6 X" u# v" ?8 W3 _/ Q
|
|
/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 2014-8-7 11:22
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
;P;P
