: d e( _" K( n* G/ b据IEC60950 4.6.1对侧面开孔的要求，说是需要设计成百叶窗之类的结构，来防止外来物的进入， * J; B$ L! u; U* I6 H5 H a; X, o& C9 Y' u
但现在的PC电源网状出风散热孔都垂直的，为什么也可以符合要求呢？求各位大神指点3 x# v, b* d& M, \, d 作者: Nezof 时间: 2017-5-6 16:30
垂直有尺寸要求的吧作者: qiclaire 时间: 2017-5-9 10:10
4.6.1顶部与侧面开孔有5条要求是或的关系，如果不满足百叶窗，可以按照5mm开孔或者5°投影来判定作者: xcc2014 时间: 2017-5-10 11:40
是不是PC电源是内装的，开孔的问题应该有外部外壳保证作者: 45550629 时间: 2017-9-21 17:59
垂直的开孔尺寸符合标准要求也是可以接受的作者: zuo 时间: 2017-9-22 09:29
Compliance is checked by inspection and measurement. Except for that portion of the side of + f4 v8 y" o o( Q1 z- w8 ~$ v% l' |a FIRE ENCLOSURE that is subject to the requirements of 4.6.2 (see above paragraph), any one 4 L; k' z; ~) \3 o" u+ {5 Kof the following is considered to satisfy the requirements (other constructions are not7 v& |3 y' p" b+ W
excluded):: F. `: w) z" s) e; t5 U
− openings that do not exceed 5 mm in any dimension; $ ]0 }( s2 J8 F& p' E* ^! O− openings that do not exceed 1 mm in width regardless of length;& Q. T( u5 Q4 R
− top openings in which vertical entry is prevented (see Figure 4B for examples);0 B& I9 {- z! H/ y: g8 }' Z; `
− side openings provided with louvres that are shaped to deflect outwards an external : @9 z6 z4 }' A, y1 Qvertically falling object (see Figure 4C for examples);7 i9 B& H2 T( P
− top or side openings, as shown in Figure 4D, that are not located vertically, or within a3 U$ Y# S" `0 `) r4 m
volume V bounded by a 5° vertical projection up to the size of opening L, above bare. E- }, T5 t8 @0 Y' Z1 K
conductive parts:- A$ n. M9 j# j x
• at HAZARDOUS VOLTAGE, or ( S* V5 K/ h$ C( r* m• that present an energy hazard within the meaning of 2.1.1.5. 0 G6 U. N8 d9 l: G2 n4 z, o$ R0 e4 q! L# E6 e/ ^; J. z) d, d' i
画重点： - q' j i1 l9 K) L$ ~9 t5 t) Jany one / e& u* s% g6 \3 W) a: s( zof the following is considered to satisfy the requirements (other constructions are not " H% f! g3 s! o8 _excluded)