标题: 请教几个灯具安规问题。 [打印本页] 作者: goumtz 时间: 2012-1-21 00:47 标题: 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.作者: voculy 时间: 2012-1-21 00:47
英文看不明白作者: qinglang 时间: 2012-1-21 00:47
有中文吗？作者: gqt8thk 时间: 2012-1-21 00:47
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；