About 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。

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 robust PCB solutions that meet the demanding environmental technical specs of significant infrastructure jobs.

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。

板裝-插孔式包裝 板裝-表面貼裝式包裝 基座型包裝 導軌型包裝 應用產業

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;

JLCPCB satisfies the stringent high-quality prerequisites of Siemens' industrial automation goods as a result of disciplined production and approach Command.

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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。

梳狀圖案,梳狀電路是一種“多指”交錯密集電路圖案,可用於電路板清潔度和綠色油漆絕緣的高壓測試。

爬電距離的選擇以日常運行時的額定工作電壓為依據,工作電壓越高,對絕緣的需求越大,所需爬電距離也越長。

By streamlining your entire method—from buying and elements sourcing to PCBA prototyping—you could get your finished boards in as fast as one particular week. Allowing for you to iterate, enhance, and deliver punctually and even.

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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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