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哥,请先说出哪边的撒,根据IEC 60335-2-91:2008 如下要求# w! Z! Y1 q1 m8 v f; B7 x
20.101.1 Lawn trimmers
" `: E# Y& {7 v4 _: y0 u4 @Lawn trimmers shall be guarded on the operator’s side, as a minimum, to the extent shown0 |2 h# D2 d1 p
in Figure 101.- t: L% F! M6 Y0 P3 N" w+ L
The radius X of the guard shall not be smaller than the major swept radius of the cutting+ x' t8 B$ V ?' |: Y
head and the guard shall extend beyond the plane of the cutting element by at least 3 mm5 ?/ q' n" h8 R4 h- [. B' p4 c0 k
for walk-behind lawn trimmers and 10 mm for hand-held lawn trimmers. The guard shall
0 C3 X: B. o$ _7 {* Oextend at least 45° from the axis of the handle on the side where the cutting element is
- z& ^' v/ @$ U+ N' K2 gmoving away from the operator and at least 90° from the axis of the handle on the side where
, Q0 K2 x/ w& ]* ?- r! uthe cutting element is moving towards the operator. The vertices of these angles lie on the- E4 }7 J0 t! ?: g
axis of the cutting head spindle.
! [" ]' M* z: ]" K% CIf the guarding is less than a total of 360°, the direction of rotation of the cutting element(s)2 F+ M1 b5 k V- }# e
shall be marked on the lawn trimmer.0 }' n T: r# x& t/ ?
Compliance is checked by inspection and measurement.; ~/ E+ K5 `) j
20.101.2 Lawn edge trimmers
( G1 P2 w$ S- \Lawn edge trimmers shall be guarded, as a minimum, to the extent shown in Figure 102.
& T- b7 j4 T; @8 g0 ^The radius X of the guard shall not be smaller than the major swept radius of the cutting2 c5 c2 Y+ ]0 ]6 q4 a3 G D y& m
head. The guard shall extend beyond the plane of the cutting element by at least 10 mm.' l9 a3 `8 A( \9 C! ~
With the lawn edge trimmer in its normal position of use, the guard shall extend a minimum6 R! D1 B8 Q" y2 j# @
of 90° from the vertical towards the ground on the side where the cutting element is moving
; t3 l, B! B+ s% |$ i8 |! p! Fupwards and a minimum of 45° from the vertical towards the ground on the side where the
: o$ A6 j# i4 I$ }cutting element is moving downwards. The vertices of these angles lie on the axis of the$ G7 A) f x! X( D
cutting head spindle.. z1 z, Y6 Y( V; v. a, Z
If the guarding is less than a total of 360°, the direction of rotation of the cutting elements
8 j6 K2 v# }* y1 {4 @5 H9 c. lshall be marked on the lawn edge trimmer. |
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