标题: UL 987 30.3 运动部件护罩 [打印本页] 作者: xuxl1234 时间: 2011-2-21 15:07 标题: UL 987 30.3 运动部件护罩 各位 UL 987 30.3 关于运动部件护罩要求： " V: s; a6 G" E- z$ f& w! C1 C30.3 Some guards provided over moving parts are required to be of the self-restoring type – for example, - e4 N# c# @6 }. a' i: T( _a guard on a saw and a guard on a jointer. Other features of a guard that shall be considered include:6 u2 t2 t* y& I+ |- w6 w/ p, {
a) Removability of the guard without the use of a tool;
b) Removability for servicing and the need for replacement;; E1 o- K3 f. h, I3 `
c) Strength and rigidity;5 F6 Z+ N; a8 ?* ~
d) Completeness; and! A7 f6 t& |2 o- `: y' y- n1 L; T
e) Creation of a risk of injury to persons, such as pinch points, material hang-ups or jams, " K+ t" Q5 |8 b+ [9 e7 \$ Rrestricted vision, or other conditions adversely affecting the ease of operation; and the necessity 7 g+ b4 K! Z5 N5 {# Cfor additional handling because of increased need for servicing – such as cleaning, unjamming, / g. D2 H {* K( ~8 q1 cand the like. ; s! f+ H8 b1 F* b3 r7 r% m% Q! i' r! g3 }; I" E/ z8 ^
其中的a 怎么理解？不用工具就可以拆掉的运动部件护罩可以接受吗？作者: milighost 时间: 2011-2-25 12:18
这个要具体情况具体分析，针对不同产品类型，在专门章节还有描述。 ' r' _9 T) E9 S& f" BUL的这个系列标准有很多东西在判断上有很多主观的东西。