|
4.3.2 Handles and manual controls
1 ~; X) C. h" `Handles, knobs, grips, levers and the like shall be reliably fixed so that they will not work loose5 H) I4 J6 B% O4 e
in normal use, if this might create a hazard. Sealing compounds and the like, other than6 V% M. m9 ]. R. R
self-hardening resins, shall not be used to prevent loosening.
' K( \) Q# _" z( OIf handles, knobs and the like are used to indicate the position of switches or similar0 J8 O& g* v7 g; ?( W
components, it shall not be possible to fix them in a wrong position if this might create a hazard.
0 q- B& \, k: p! @Compliance is checked by inspection, by manual test and by trying to remove the handle, knob, ~% I. H9 o) O6 D Z
grip or lever by applying for 1 min an axial force as follows.
- f5 P% t* }/ b9 ^If the shape of these parts is such that an axial pull is unlikely to be applied in normal use, the
, x0 y6 [* Y6 ]force is:
4 l) H7 x" Z4 i– 15 N for the operating means of electrical components; and
5 V, p. Z) w3 ]& b* T) \– 20 N in other cases.& q- u. D, t2 y- {8 }: n
If the shape is such that an axial pull is likely to be applied, the force is:, ~* s3 u2 e' w* p3 r7 o6 U, b
– 30 N for the operating means of electrical components; and
8 Q; C+ Z+ ^0 a– 50 N in other cases. |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册安规
x
|