首页 > 装修问答 > 装潢 > 靠近发电厂的居民小区,用户电压经常偏高,最高时比正常电压高22伏.(1)某户居民家庭装潢时,将“220V?

靠近发电厂的居民小区,用户电压经常偏高,最高时比正常电压高22伏.(1)某户居民家庭装潢时,将“220V?

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2024-04-23糖糖和胖秘
font-size;vertical-align:middle" cellpadding="-1" cellspacing="-1"> U 额 U 灯 =
U 2额
P 额 =
(220V) 5
11
A .
R = 2
100W
=484Ω .
P 额
= font-size:90%"> 2 484Ω =121W .
答;line-height;" cellpadding="0" cellspacing="0"> U 实2 R (220V+22V) (1)R =
实 =
=
I
P 5
11
A
=48:inline-table:1px solid black"> 100W 220V =P =U I =22V×
5
11
A=10W
答;font-size:1px:inline-table;font-size;padding-bottom:normal:inline-table:1px solid black"> 22V
20