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请教各位高手,关于CSA插头插座标准的

本人现在学习该标准,遇到不少问题,还望各位大师不吝赐教.小弟谢过了!
1、Terminal plates through which binding head screws or machine screws are threaded.中的terminal plates是否指螺丝的垫圈?
2、multicontact device是指的哪种装置?
3、To prevent incorrect mating of a 3-wire grounding type of attachment plug with a 2-wire device or a 3-wire device, two obstructions shall be provided on a nongrounding outlet device (1-15R) and a single obstruction shall be provided on a grounding outlet device 5-15R, 5-20R, 6-15R, and 6-20R.其中obstruction指的是什么?
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ycrystal
LV.2
2
2005-12-07 11:47
还有一个问题:Wire Termination Enclosure中extend not less than 0.8 mm above parts of wired terminals该怎么理解?谢谢!
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gushun
LV.2
3
2006-01-14 09:30
@ycrystal
还有一个问题:WireTerminationEnclosure中extendnotlessthan0.8mmabovepartsofwiredterminals该怎么理解?谢谢!
请问那位有CSA C22.2 NO.158 有关terminal blocks的标准,小弟在此急需要此标准,很想了解其中Clause 6.11中的氨水腐蚀试验.希望大侠们能多多指教.
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