ljh809809 发表于 2009-10-29 15:39

请教几个灯具安规问题。

1    if it is impossible to place foil in position on linings or barriers , the tests shall be made on three pieces of the lining or barrier which have been taken out and placed between tow metal balls having a diameter of 20 mm, which shall be pressed together with a force of 2N.
这个是对三片各做一次吗？

2    NOTE For luminaries incorporating a.c. supplied electronic ballasts, the leakage current may be greatly dependent upon the spacing between the lamp and the earthed starting aid, due to the high frequency operation of the lamp.
这句怎么理解？

3.    cl 12.4.1
d) – Filament lamp luminaries: that voltage which produces 1,05 times the rated wattage of the test lamp (see annex B) except that heat test source (HTS) lamps are always operated at the voltage marked on the lamp.
test lamp与HTS有什么区别？何时用test lamp何时用HTS?
   
4.    Where a screw has a hexagonal head with means for tightening with a screwdriver and the values in columns III and IV are different, the test is made twice, first applying to the hexagonal head he torque given in column IV, and then on another set of samples, applying the torque given in column III by means of a screwdriver. If the values in columns III and IV are the same, only the test with the screwdriver is made.
这句怎么理解？

5.    The voltage drop for each joint or contact is considered separately, for example, the junction of conductor to receptacle is considered separately from the junction of receptacle to pin.

g53663103 发表于 2010-4-2 21:55

英文看不明白

leely02 发表于 2010-5-26 19:48

有中文吗？

EasonY 发表于 2010-5-27 17:50

下次问问题记得把标准号写清楚，我查了才知道是60598-1的。以上问题我参杂个人理解，有不对之处请指正。
1，是三片各做一次；
2，忘记了在哪里看过，泄漏电流大小和频率有关，具体的有个计算公式，找到了再来回贴；
3，你再看一下ANNEX B，说得很清楚；“Testing these conditions requires Heat Test Source (HTS) lamps manufactured in accordance with IEC 60634.”
4，不太理解Table 14.4，等高人指点；
5，就是spring-type terminal每个接线端子分别计算电压，L,N,G分别计算；

chenhualiu 发表于 2010-6-1 15:44

英文看不明白

bub01 发表于 2010-6-2 10:03

我查了标准是 60598-1 2003版
我的理解如下，可能与三楼的理解有出入
1、不是对三片各做一次，而是三片衬垫叠加放置在两个直径为20mm的金属球之间，施加2N的力。前提是金属箔没法固定在衬垫上。
2、对交流供电的电子镇流器，由于灯管工作在高频情况下，泄漏电流可能主要取决于灯管和接地启动辅助之间间距。
3、test lamp 试验灯泡是统称，HTS 热试验源灯泡是其中一种，附录B 有说明，如果灯具使灯泡以灯头在上的位置工作，灯座及其连接线还受到来自灯泡外表面的对流热。则要使用HTS 热试验源灯泡。
4、可用旋凿拧紧的带六角行头的螺钉，并且第III栏和第Ⅳ栏中的数值不同时，试验要进行2次，先用Ⅳ栏中的扭矩施加六角行头，然后再在另一组样品上涌旋凿施加第III栏中的扭矩。如果第III栏和第Ⅳ的数值相同，仅用旋凿做试验。
5、每一连接或接触的电压降应分别考虑。例如：导体到插孔的接点与插孔到插销的接点应分别考虑。
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