LED Lamp

aillafeng

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

有的LED lamp 要满足environmental pollution degree
0 E, P6 [) b3 h( \但是我只知道有IP code
) l2 I2 D( o: b/ q请问environmental pollution degree   有何标准验证

依然

environmental pollution degree  是在UL840里对PCB板上电气间距要求的一个分级，LED 灯泡可以参考UL1993中的这段条款：
% N  t! j) T1 Q- k" ~# W% \9.8 When applying the requirements specified in UL 840 to determine environmental pollution, the device
2 `0 c# t3 a3 K8 p( dcan be evaluated with different environmental pollution degrees. The following conditions apply:
+ H; ]# c: w, C; S# X! @; l5 h/ ma) A device marked for damp or wet use shall be exposed to environmental pollution degree 3.
b) A device intended for dry locations shall be exposed to environmental pollution degree 2.
c) The portion of a printed wiring board covered with a potting compound or a conformal
: ~6 q& e- _8 ~9 P- [- C# l1 M7 g( Kcoating that complies with the requirements in Conformal-Coating Tests, Section 32, shall be
+ \8 k4 M5 Q( l( [4 ]9 I5 `4 D% Aexposed to environmental pollution degree 1.

Nezof

是不是光污染？