The Greatest Guide To PCB絕緣

瞬態過電壓是指在極短時間內發生的高電壓脈衝，可能持續幾微秒到幾毫秒。這些過電壓不屬於設備正常運作的工作電壓範圍，但必須被考慮進安全設計，因為它們足以擊穿絕緣或設備損壞。

Our interactive 3D viewer demonstrates your board and part placements, helping you notice any problems ahead of ordering.

Partnering with JLCPCB for strong PCB alternatives that satisfy the demanding environmental specs of vital infrastructure tasks.

不會。海拔高度只會影響空氣的介電強度，因此只會調整「間隙距離」；爬電距離設計不受高度影響。

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衰减原因：高温高湿下，水汽渗透到表面处理层，溶解残留离子（如助焊剂、金属离子）形成 “电解液”，离子在偏压作用下迁移，让绝缘电阻降低 —— 就像橡胶吸水后变潮湿，导电能力变强；

不行。兩者是獨立的安全設計參數，爬電距離用於防止表面漏電，間隙距離則防止空氣放電。缺一不可，需分別依標準查表計算。

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若設計人員未能清楚區分這兩項距離，可能導致誤判風險來源，進而影響產品安全性與安規通過率。

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設備運行環境中的污染狀況會顯著影響絕緣性能。污染等級越高，越容易在絕緣表面形成導電通路，增加漏電或電弧風險，因此需設定更長的爬電距離。

By streamlining the whole course of action—from ordering and areas sourcing to PCBA prototyping—you can get your finished boards in as rapidly as PCB絕緣 one 7 days. Permitting you to definitely iterate, enhance, and produce promptly or perhaps.

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．介質不同：間隙距離依賴空氣的絕緣能力，而爬電距離取決於固體絕緣材料表面的性能。

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