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各位 UL 987 30.3 关于运动部件护罩要求:3 h- ?$ I6 `9 m; {8 M) \
30.3 Some guards provided over moving parts are required to be of the self-restoring type – for example,
. v! C2 F% o& ta guard on a saw and a guard on a jointer. Other features of a guard that shall be considered include:1 |* j/ K8 l- i7 a& R
a) Removability of the guard without the use of a tool; | b) Removability for servicing and the need for replacement;
7 A) C: A* T7 |% J* B' D4 ?. kc) Strength and rigidity;
! d$ | Q, y- q& q; j" _8 Wd) Completeness; and
! M6 g5 ?! S& h" {) A! {e) Creation of a risk of injury to persons, such as pinch points, material hang-ups or jams,
2 X5 z- w0 S* C# J9 s/ Irestricted vision, or other conditions adversely affecting the ease of operation; and the necessity/ R/ p) n9 N3 r8 Y( g5 h: w7 G
for additional handling because of increased need for servicing – such as cleaning, unjamming,
& [7 D% }* D H0 C6 Nand the like.
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4 x8 l: A+ K0 \& Z1 n! N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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