|
|
楼主 |
发表于 2010-8-13 10:28
|
显示全部楼层
8.2 Flammability9 A' k i) T) \) l& e
8.2.1 A polymeric material used for electrical insulation or enclosure of live parts shall have a flame class
2 y) S- n" ]. I) |rating of HB, V-2, V-1, V-0, VTM-2, VTM-1, or VTM-0 in accordance with the requirements of the Standard
% ]9 b0 V4 V4 u5 jfor Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94. The flame class
& i% U5 h4 W- D9 P Q% Lrating of the material shall be judged at the minimum thickness employed at the walls and barriers in the1 N/ j3 p" D4 j' \% Q: F0 L, `
device which are critical to the functioning of the insulation or enclosure of the device.9 U/ N3 x1 `, }
Exception No. 1: Insulating materials employed in a self-contained receptacle shall instead comply with- Y2 ~4 n9 z1 F( _, S/ V
40.1.
6 K, h/ K/ ]: q8 t( j) n$ CException No. 2: A polymeric material that complies with either the 12 mm or 20 mm (3/4-inch) flame
3 E) k" Z% x/ |2 F8 `' Z9 }1 k! S$ Iflammability test described in UL 746C, need not have a flammability class rating.
9 `$ l/ _3 T7 z' c1 [) h8.2.1 revised April 6, 2010 |
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2010-8-13 09:45
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
