|
各位 UL 987 30.3 关于运动部件护罩要求:
- @9 D; k* }# \8 \. @8 Y4 ~30.3 Some guards provided over moving parts are required to be of the self-restoring type – for example,- g1 M. }) n8 G/ \6 c$ g) |
a guard on a saw and a guard on a jointer. Other features of a guard that shall be considered include:
0 G' J" W# U# y/ x, ]a) Removability of the guard without the use of a tool; | b) Removability for servicing and the need for replacement; \/ t: ^' i( l6 [$ u
c) Strength and rigidity;- m% r, B% T* y( o
d) Completeness; and* z3 `3 x, I. E/ B1 u
e) Creation of a risk of injury to persons, such as pinch points, material hang-ups or jams,2 T, o, C0 d) B. f- F f8 L! T
restricted vision, or other conditions adversely affecting the ease of operation; and the necessity G+ D5 e9 ]2 q% c0 \
for additional handling because of increased need for servicing – such as cleaning, unjamming,4 r. B* _+ D0 A5 {! F( \
and the like., X: r9 T% j4 {4 h
v* e3 F" A6 {! ~% [. s8 U: _& q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? |
|