NFB 跳脫條件 - 居家修繕

By Steve
at 2019-11-16T21:41
at 2019-11-16T21:41
Table of Contents
最近發現原來儲熱式的電熱水爐那麼吃電
看了一下要用掉18A
於是看了一下樓層的NFB
所在樓層是3F,由2F接上來的是NFB上面是寫T20
T20 應該是等於 20AT 的意思吧!?
詳細規格:BH 2P 100AF(50AF) IC:5kA
後來拿勾表量了一下
熱水爐的確就是吃了18A(用三樓的NFB)
變頻冷氣大概在1~3A
其他電器約2A
算一算只要電爐啟用+吹冷氣
應該都超過20A
加上洗完澡時熱水爐通常是熱水不夠會加熱的時間
這時再用吹風機一分鐘後該會再加個10A 就會變30A
所以是時間不夠沒跳?
我的NFB壞了?
或我對這規格認知有誤,T20不是20AT
以上請益
謝謝
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居家修繕
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