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4.3.2 Handles and manual controls/ M$ o, H7 i( W- b- u
Handles, knobs, grips, levers and the like shall be reliably fixed so that they will not work loose" R8 F) k! D, [0 ^ q* L | M
in normal use, if this might create a hazard. Sealing compounds and the like, other than" X. b$ ~% b; B0 L
self-hardening resins, shall not be used to prevent loosening.
' H, S7 i/ ^; B* C, PIf handles, knobs and the like are used to indicate the position of switches or similar
0 M- }; ~( ?! E: r3 y% I+ Q5 Dcomponents, it shall not be possible to fix them in a wrong position if this might create a hazard.
$ F2 G6 @) P! n: n! W- O/ {Compliance is checked by inspection, by manual test and by trying to remove the handle, knob,) a' j8 k x( P5 n
grip or lever by applying for 1 min an axial force as follows.
% Q* R% L6 Z" ]: kIf the shape of these parts is such that an axial pull is unlikely to be applied in normal use, the; W) h! m' Q/ n9 @ }
force is:4 i+ Q& t/ I. D, ^, Z
– 15 N for the operating means of electrical components; and
; ~7 g# k& G# T6 |8 m: p* _( |0 |– 20 N in other cases.) b4 P( _; O& d) v. [! {
If the shape is such that an axial pull is likely to be applied, the force is:+ T" K, c, C9 {4 j
– 30 N for the operating means of electrical components; and
7 R" t; k% L. S– 50 N in other cases. |
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发表于 2015-4-7 11:29
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