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各位 UL 987 30.3 关于运动部件护罩要求:- T3 S! t7 \/ M
30.3 Some guards provided over moving parts are required to be of the self-restoring type – for example,
3 E1 G+ W9 I4 y8 C6 qa guard on a saw and a guard on a jointer. Other features of a guard that shall be considered include:
" J9 f6 U6 p2 W2 i/ pa) Removability of the guard without the use of a tool; | b) Removability for servicing and the need for replacement;" v3 L: n1 a9 q
c) Strength and rigidity;
8 U. w8 z1 ~8 o' \$ P$ Td) Completeness; and
: W* C/ a F1 q9 U9 Xe) Creation of a risk of injury to persons, such as pinch points, material hang-ups or jams,& c3 ?3 ?9 X9 K
restricted vision, or other conditions adversely affecting the ease of operation; and the necessity
' P% U1 Y- k3 v8 n& i; W. P/ `+ _* ffor additional handling because of increased need for servicing – such as cleaning, unjamming,3 K9 [* x) ?/ y2 [& {& V3 w5 Z
and the like.1 o( o' p" j0 z7 J, P
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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? |
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