電供的編織線脆化是正常的嗎? - 3C

By Edward Lewis
at 2020-05-30T12:52
at 2020-05-30T12:52
Table of Contents
原文不留
看了原討論串留言有不少人說這是劣化,發爐前兆甚至還要換12AWG...
其實沒那麼嚴重啦
用安規來分析吧 先貼一下法規摘要
https://imgur.com/a/nv0skUc
1.內部配線需要耐流耐溫跟適當絕緣
業界通常使用UL AVLV2 的線
上面應該會寫著 EXXXXX XXXX(4位數) 18AWG 105C 300V或80V VW-1 (手邊沒有POWER)
EXXXXX-- UL FILE no 可以藉由這組號碼查到製造商
XXXX -- AVLV2 STYLE NO 不太會解釋 一樣的數字代表一樣的製程跟結構
各廠有被授權都能用 常見1005 1015
18AWG-- 截面積是0.81還84 換算IEC 為0.75 耐流6A還7A
基本上一定符合 不符合安規不會過
105C-- 在測試溫度時會量線皮 不能超過這溫度
300V或80V-- 指的是線內的電壓不能超過這數字
(也不算耐壓 耐壓在安規是專有名詞)
VW-1 耐燃等級 相當V-1耐燃
適當絕緣-內部配線只要基本絕緣 線皮單層就好
看回到那層編織網
不是用來擋溫度更不可能擋耐燃也不是用來補充絕緣
結論那層編織網只是裝飾用
然後建議人家換12AWG那位 你有專業知識知道線徑關係
也知道這樣POWER 本體會先燒
站在安規工程師的角度 以後這種事就別亂建議了
要是人家真的去換了 燒了 怎麼辦? 主機燒了事小 漫延出來就完了
用電安全很重要
--
看了原討論串留言有不少人說這是劣化,發爐前兆甚至還要換12AWG...
其實沒那麼嚴重啦
用安規來分析吧 先貼一下法規摘要
https://imgur.com/a/nv0skUc
1.內部配線需要耐流耐溫跟適當絕緣
業界通常使用UL AVLV2 的線
上面應該會寫著 EXXXXX XXXX(4位數) 18AWG 105C 300V或80V VW-1 (手邊沒有POWER)
EXXXXX-- UL FILE no 可以藉由這組號碼查到製造商
XXXX -- AVLV2 STYLE NO 不太會解釋 一樣的數字代表一樣的製程跟結構
各廠有被授權都能用 常見1005 1015
18AWG-- 截面積是0.81還84 換算IEC 為0.75 耐流6A還7A
基本上一定符合 不符合安規不會過
105C-- 在測試溫度時會量線皮 不能超過這溫度
300V或80V-- 指的是線內的電壓不能超過這數字
(也不算耐壓 耐壓在安規是專有名詞)
VW-1 耐燃等級 相當V-1耐燃
適當絕緣-內部配線只要基本絕緣 線皮單層就好
看回到那層編織網
不是用來擋溫度更不可能擋耐燃也不是用來補充絕緣
結論那層編織網只是裝飾用
然後建議人家換12AWG那位 你有專業知識知道線徑關係
也知道這樣POWER 本體會先燒
站在安規工程師的角度 以後這種事就別亂建議了
要是人家真的去換了 燒了 怎麼辦? 主機燒了事小 漫延出來就完了
用電安全很重要
--
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