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各位 UL 987 30.3 关于运动部件护罩要求:. V) w3 g$ k" b" K
30.3 Some guards provided over moving parts are required to be of the self-restoring type – for example,
/ i* V# w4 \3 @* n1 |' T4 x6 W$ pa guard on a saw and a guard on a jointer. Other features of a guard that shall be considered include:1 [5 D/ ~0 I+ ~& j
a) Removability of the guard without the use of a tool; | b) Removability for servicing and the need for replacement;
& d5 Z% o. F+ Z2 M: i0 ac) Strength and rigidity;- d" d0 z& B( p- [, V* K
d) Completeness; and3 g- ?7 _9 K4 y7 p4 O
e) Creation of a risk of injury to persons, such as pinch points, material hang-ups or jams,
. D' M: P- E6 S' Mrestricted vision, or other conditions adversely affecting the ease of operation; and the necessity- |9 {! g+ L/ n: h- j( G
for additional handling because of increased need for servicing – such as cleaning, unjamming,
( X! o3 [' z+ }; f% k [and the like.
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# E3 r9 ?5 \' _! M4 u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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