PC电源侧面网状风孔要求

八戒

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

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，
* o, x, R- b; P) {: n. Z
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

Nezof

垂直有尺寸要求的吧

qiclaire

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

xcc2014

是不是PC电源是内装的，开孔的问题应该有外部外壳保证

45550629

垂直的开孔尺寸符合标准要求也是可以接受的

zuo

Compliance is checked by inspection and measurement. Except for that portion of the side of
a FIRE ENCLOSURE that is subject to the requirements of 4.6.2 (see above paragraph), any one
6 @1 U# M' P6 o2 S+ \5 Lof the following is considered to satisfy the requirements (other constructions are not
* A: K2 I* o( J& y2 ^excluded):
− openings that do not exceed 5 mm in any dimension;
2 P2 e3 [' c4 f/ G" W6 v: i" E− openings that do not exceed 1 mm in width regardless of length;
− top openings in which vertical entry is prevented (see Figure 4B for examples);
- Z9 R0 A' @+ _" ?* L: B0 S2 z− side openings provided with louvres that are shaped to deflect outwards an external
vertically falling object (see Figure 4C for examples);
− top or side openings, as shown in Figure 4D, that are not located vertically, or within a
8 z/ A2 \: c8 |% }& Evolume V bounded by a 5° vertical projection up to the size of opening L, above bare
( W5 @3 j; k. zconductive parts:
• at HAZARDOUS VOLTAGE, or
5 L9 x  V) t! o( u• that present an energy hazard within the meaning of 2.1.1.5.

% i3 O. F% |" E  ]$ ]画重点：
any one
of the following is considered to satisfy the requirements (other constructions are not
- ]1 U. I3 W! z1 uexcluded)