UPS不能防雷擊嗎? - 3C

By Isabella
at 2016-09-05T03:24
at 2016-09-05T03:24
Table of Contents
1. 防雷擊是有上限的
雷擊可能讓你家電壓抖一下
也可能直接幾萬伏特灌進來 (好比打到你家用的電線杆)
前者的話也許防突波排插就OK
後者的話 市面零售產品的防禦基本上什麼都沒屁用
那是幾萬伏特
空氣都電離化、絕緣崩潰了
你想能拿什麼擋呢
2. UPS是 "不斷電系統" でしょ?
他是停電時給你一點時間關機的
不是拿來吸收雜訊、突波、擋雷擊還是幹些什麼五四三的
很多人會去買 on-line 式 UPS
是看上他的 AC 再生設計
的確有顆電池當緩衝, 可以很大程度的吸收掉有的沒的
但 他畢竟不是避雷器、雷擊吸收器
當然 也許他能犧牲自己保護住你的電腦
不過能量太強的狀況還是沒用
至於非 on-line 式
他的突波吸收能力 基本上就是為了符合安規裝上去的VDR
如果沒有在機能上強調 說不定比標榜吸收突波排插還弱
雖然說 over voltage 應該會跳開 (不會跳的也太陽春...)
但跳要時間啊 幾十個ms總要
如果是雷擊 這時間想燒什麼就燒什麼了
麻煩請有這個認知
3. 接地不是萬能
雷打到地面後你想像成池塘的漣漪
是在地面上擴散的
所以甚至有可能反從設計不良的接地竄回來
包括避雷針也是 避雷針就是導引下地
但如果附近剛好也有台電的N線地
很可能會做死
4. 所以要怎麼辦
看你電腦跟資料多重要
不要只有上網發廢文看看A片
卻整天擔心電腦被突波雷擊打壞
也不要有幾百幾千萬資料、甚至更重要的電腦
買個防突波排插了事
有專業需求就去找專業的
不論是資料的同步備份
還是防雷工程
就這樣
--
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