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各位同学，
9 Z$ c3 @ W% `8 U* } 64.4.2 Each product is to be operated at room temperature for 3-1/2 hours. The product is then to be
5 \7 N, _8 Y+ |# Q7 ode-energized and immediately submerged in at least 304.8 mm (1 foot) of water. The temperature of the, I$ }! ^6 U* O
water before submersion is to be 5°C (41°F) or less. The product is to remain submerged for 4 hours. At
% N" M1 y$ N0 \, u% q' Bthe end of four hours, the product is to be removed from the water and subjected to 2 additional cycles8 C3 v* r) M7 j# M
of operation and immersion. Between each cycle, the product is to be placed in a dry location at room
6 ^/ ]4 d' i" i F7 a$ A5 a. g3 f) M& Qtemperature for approximately 16-1/2 hours. The product is to be inspected immediately after the third
! R' Y% v& ?; `/ v! \0 @2 `: P( }: p5 Nimmersion for evidence of water entry.' \5 s! T" P* N8 q( {: |5 {9 S
" o2 L8 j, S6 A) C7 J9 C" W+ } \* u
3-1/2 hours.是指2.5小时还是3.5小时呢？
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谢谢！
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发表于 2014-8-7 11:22
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