PCB絕緣 Options

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。

依據UL1310下列條文要求,輸出接頭(output connector)不可使用同軸電纜的連接器(coaxial cable connector)。

Partnering with JLCPCB for strong PCB methods that meet up with the demanding environmental technical specs of significant infrastructure projects.

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。

JLCPCB provides a person-halt electronic and mechanical producing remedies to empower hardware innovators globally.

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。

By contrast, any time you click a Microsoft-presented advertisement that appears on DuckDuckGo, Microsoft Promotion would not affiliate your ad-click habits using a PCB絕緣 consumer profile. In addition, it won't retail outlet or share that facts aside from for accounting functions.

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 complete process—from ordering and parts sourcing to PCBA prototyping—you can acquire your finished boards in as rapid as just one 7 days. Enabling you to iterate, boost, and provide promptly and even.

工作電壓會直接影響你需要設計的「間隙距離」和「爬電距離」大小。電壓越高,潛在的絕緣需求和空氣/表面擊穿風險越高,安全距離需求就越大。

不同的絕緣措施(如基本絕緣、雙重絕緣或強化絕緣)對爬電距離的要求有所不同,越高等級的絕緣保護,所需距離越長。

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