SAFETY NEWS
Providing the latest product safety knowledge and techniques monthly.
2020年1月 (第303期)
一、 插牆式電源供應器(Plug-In Power Adapter)插頭滾筒測試(Tumbling Barrel Test)
歐規認證(如:CE,TUV/SUD,TUV/Rh …)已經公告,以往申請IEC/EN 61558-1:2005時,其中滾筒測試可接受較少次數(25-50次)的要求,取代EN 50075的作法已經不適用。 現今申請IEC/EN 61558-1:2017依條文16.4.2滾筒測試的要求與EN 50075一致(100-1000次)。
二、 台灣BSMI CNS 14336-1:99標準對電源供應器輸出使用USB接頭輸出電壓要求
經濟部標準檢驗局在108年12月份「資訊與影音商品檢測技術一致性研討會」會議中再次說明USB 輸出電壓之規範,需要請製造商確認產品銷售是否隨附USB線材, 鼎安測試實驗室可以協助確認產品的輸出電壓是否符合額定標示電壓正負之範圍(未附USB線材5% or 附USB線材10%)要求。
範例:
a. 假設產品輸出USB 2.0 type A(DC 5 V)
未附USB線材,空載量測5.1 V,滿載量測4.9 V,符合5%範圍(4.75-5.25 V)
有附USB線材,空載量測5.1 V,滿載量測4.9 V,符合10%範圍(4.5-5.5 V)
所以兩種條件都可以
b. 假設產品輸出USB 3.1 type C(DC 9 V)
未附USB線材,空載量測9.1 V,滿載量測8.4 V,不符合5%範圍(8.55-9.45 V)
有附USB線材,空載量測9.1 V,滿載量測8.4 V,符合10%範圍(8.1-9.9 V)
所以一定要附USB線材
(有USB插座之電源供應器)
三、 IEC/UL 62368-1要求電容放電電阻(Capacitor discharge resistor)之規定
依廠商提供放電電阻的CB測試報告,若符合下列條件之一即可免除該放電電阻的Single Fault測試
(a) 依標準IEC 62368-1:2014(Ed. 2.0),條文G.10.2評估測試
(b) 依標準IEC 62368-1:2018(Ed. 3.0),條文G.10.2 & G.10.6評估測試
(出處: IEC 62368-1:2018)
(c) 依標準IEC 60065:2014 / UL 60065 8th, 條文14.2 (b)評估測試
(d) 依標準IEC 60950-1:2005/AMD2:2013 / UL 60950-1 2nd revision 2019, 條文1.5.7.2評估測試
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