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哥,请先说出哪边的撒,根据IEC 60335-2-91:2008 如下要求- |8 \& L. B2 t! i. w2 C5 G
20.101.1 Lawn trimmers
4 y. v: y W. d5 zLawn trimmers shall be guarded on the operator’s side, as a minimum, to the extent shown9 L# n, i8 }9 g p0 }6 z$ j& a5 N
in Figure 101.
3 }; t7 u% x( `+ i: M; {The radius X of the guard shall not be smaller than the major swept radius of the cutting
0 |* u; N$ y2 O+ o* mhead and the guard shall extend beyond the plane of the cutting element by at least 3 mm
4 X y: |' f- F! K% E$ Qfor walk-behind lawn trimmers and 10 mm for hand-held lawn trimmers. The guard shall5 {, @5 k* n. d2 G* [3 j
extend at least 45° from the axis of the handle on the side where the cutting element is
1 N3 g0 D, N' S4 ^8 H0 mmoving away from the operator and at least 90° from the axis of the handle on the side where* m4 }% J( P, i
the cutting element is moving towards the operator. The vertices of these angles lie on the6 c+ ?, I# ]# f; m, T: R/ E
axis of the cutting head spindle.. |/ C1 F9 i( k3 D
If the guarding is less than a total of 360°, the direction of rotation of the cutting element(s)
( ~$ k0 q: N9 ]" J# R2 y# T% oshall be marked on the lawn trimmer.1 }2 j4 i5 k6 [* `% E1 X$ R" n/ a
Compliance is checked by inspection and measurement.
; [2 n0 q! }3 U3 M9 {1 {20.101.2 Lawn edge trimmers
# [4 x9 T" P. f4 B0 i3 s- `- g# ALawn edge trimmers shall be guarded, as a minimum, to the extent shown in Figure 102.
- m: z) t" |2 I E7 OThe radius X of the guard shall not be smaller than the major swept radius of the cutting
" R+ b" r/ @- d, {( Ohead. The guard shall extend beyond the plane of the cutting element by at least 10 mm.8 Y3 N7 M5 d2 b# w) J) A
With the lawn edge trimmer in its normal position of use, the guard shall extend a minimum' N# U! |$ ^$ g! Y6 y$ W" J' S
of 90° from the vertical towards the ground on the side where the cutting element is moving
! [ B2 i5 \: k2 Z0 n8 E' E1 lupwards and a minimum of 45° from the vertical towards the ground on the side where the+ A: s' v: x! r) o% [
cutting element is moving downwards. The vertices of these angles lie on the axis of the
; ~. t1 z8 |3 ?8 E: R8 d5 s5 l; }2 kcutting head spindle.* i4 I& m: B9 e; y& s
If the guarding is less than a total of 360°, the direction of rotation of the cutting elements1 a2 |4 b5 D& ]- ?# v3 `
shall be marked on the lawn edge trimmer. |
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