引用第3楼guochengsx于2010-10-22 10:12发表的 : 2 ? `7 n. c* r) x充电产品,是否一定要有保险丝?
就IEC60950而言,我个人认为根据3.1.1下面的这段话,应该是要有overcurrent protection的,当然不一定是保险丝3 f) L* [8 U# k- i
All internal wiring (including busbars) and INTERCONNECTING CABLES used in the distribution of % [. \) W1 ]0 s) m. APRIMARY CIRCUIT power shall be protected against overcurrent and short-circuit by suitably / I+ u0 K! X: ^8 L6 O9 Prated protective devices. # C! |; @7 K3 T6 F* d4 c但是下面还有一段6 @6 |8 i6 X4 y& a3 b( }
Wiring not directly involved in the distribution path does not require protection if it can be 4 f7 m: B# m$ z6 {shown that creation of hazards is unlikely (for example, indicating circuits)./ u; U& V; E# `( i' r* q" e
也就是说,如果你的充电器不合电网直接连接,而且是不可能产生危险,应该就是可以不用了。 & x! r+ a8 ?6 X* B/ f " O6 Y/ u9 i2 p% p9 X6 A以上纯属个人理解。作者: langzhiwen 时间: 2010-10-22 11:09
保护装置必须是要有的,保险丝或者其他元件(如PTC)均可作者: guochengsx 时间: 2010-10-22 11:17
产品不直接与电网连接,供电电压只是低压12V以下,要求有PTC,这是哪个标准要求的呢?作者: Liu 时间: 2010-10-22 11:20