335-1中 28章螺钉和连接的松紧测试部分讨论
标准中对于用于某些作用的螺钉要进行10或5次松紧测试,但是对于这些位置在公司内部有歧义。
比如,一款Y连接的电磁炉的合盖螺钉;
个人认为不属于标准中提到的3个位置,但是内部同事觉得“合盖螺钉”属于用户维护保养、安装期间。
Compliance is checked by inspection and by the following test.
Screws and nuts are tested if they are
– used for electrical connections;
– used for connections providing earthing continuity, unless at least two screws or nuts are
used;
– likely to be tightened
• during user maintenance;
• when replacing a supply cord having a type X attachment;
• during installation.
The screws or nuts are tightened and loosened without jerking:
– 10 times for screws in engagement with a thread of insulating material;
– 5 times for nuts and other screws.
我个人认为假如①需要拆开电磁炉合盖螺钉,这个已经不属于用户维护保养的范围。
②安装期间是指一些购买后需要按照到位使用的器具,一般便携式器具肯定不包含在内。
我倾向于赞同楼主意见 user maintenance
any maintenance operation stated in the instructions for use, or marked on the appliance, that
the user is intended to perform
从定义上看,再结合你的产品,user maintenance 和 installation 都不会涉及到你所说的部件的螺丝, 所以不用考虑此测试 我同意你的观点。 支持楼主观点:):) 必须适用,28章第一句就已经说明了:
28.1 Fixings, the failure of which may impair compliance with this standard, electrical
connections and connections providing earthing continuity shall withstand the mechanical
stresses occurring in normal use. tzsn 发表于 2015-8-10 22:35 static/image/common/back.gif
必须适用,28章第一句就已经说明了:
28.1 Fixings, the failure of which may impair compliance with th ...
28.1第一句话仅仅只是说紧固装置、电气连接、接地连接应该能够承受正常只有中出现的机械应力,这仅仅是个范围结构要求,而且也是说明在“正常使用过程中”【shall withstand the mechanical stresses occurring in normal use.】
28.1第5、6句话才是测试具体实施的前提。
Compliance is checked by inspection and by the following test.
Screws and nuts are tested if they are【假如,他们下述情况,则螺钉和螺母进行测试】
这个测试的前提就是螺钉或螺母是我提问时说的那些。
我个人觉得不能仅仅因为概述阶段有Fixings就说所有位置的螺钉、螺母都需要进行扭力测试。 不用考虑此测试,这个没什么争议的。或者看下你产品LVD报告。 ylgc123 发表于 2015-8-11 08:47 static/image/common/back.gif
28.1第一句话仅仅只是说紧固装置、电气连接、接地连接应该能够承受正常只有中出现的机械应力,这仅仅是个 ...
那我想问,如果你家的电饭锅外壳的螺丝松了,会发生什么事? 这个章节是针对电气连接和接地连接的螺丝的。其他合盖螺丝,根本扯不上!!
而且电磁炉本来设计就是类似一次性产品,还维修什么!!一般顶多清洁而已,说明书没有指示——要拆机的!!