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： & z3 ]7 D. n; c+ g' I30.3 Some guards provided over moving parts are required to be of the self-restoring type – for example, # `. T2 c0 T! t9 j! g, P5 P \a guard on a saw and a guard on a jointer. Other features of a guard that shall be considered include:- {& b; z' C+ \& R/ \' W' l
a) Removability of the guard without the use of a tool;
b) Removability for servicing and the need for replacement;1 ~& o" U4 ^5 E2 ? q3 ]4 E Q
c) Strength and rigidity;8 B/ {& r: ~- S1 s. @0 [
d) Completeness; and/ ], |+ w+ C$ ^0 h7 c; A$ i
e) Creation of a risk of injury to persons, such as pinch points, material hang-ups or jams, # m+ T" N2 v/ I. q; o- J) H9 Wrestricted vision, or other conditions adversely affecting the ease of operation; and the necessity! f: T- ~8 [" j7 q0 o) U9 o
for additional handling because of increased need for servicing – such as cleaning, unjamming, ' d% R: }6 N3 l- v0 \2 qand the like.8 R4 p- Z# u; J
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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。9 ^# P! o/ S0 i/ V. m* V6 h
UL的这个系列标准有很多东西在判断上有很多主观的东西。