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各位 UL 987 30.3 关于运动部件护罩要求:
/ j' U1 j: k& _! K. v' f30.3 Some guards provided over moving parts are required to be of the self-restoring type – for example,+ P7 H E5 v: L% N
a guard on a saw and a guard on a jointer. Other features of a guard that shall be considered include:
4 [' \: V: I7 `a) Removability of the guard without the use of a tool; | b) Removability for servicing and the need for replacement;, y$ `9 d* D- C. d* x
c) Strength and rigidity;
5 [, z$ a" x h3 a$ P! Cd) Completeness; and- W' i+ s7 k' ?( O8 }
e) Creation of a risk of injury to persons, such as pinch points, material hang-ups or jams,' h% b# r0 V- m& }5 H
restricted vision, or other conditions adversely affecting the ease of operation; and the necessity6 B' h* q1 a! Q
for additional handling because of increased need for servicing – such as cleaning, unjamming,
- L0 _9 q5 Q( v9 Gand the like.( m) \* m4 x5 T2 r& {
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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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