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4.3.2 Handles and manual controls6 q/ q P% k0 o5 N5 y; w) V
Handles, knobs, grips, levers and the like shall be reliably fixed so that they will not work loose* Z" L( u$ W$ S9 n3 ^. h% v1 ~/ p
in normal use, if this might create a hazard. Sealing compounds and the like, other than. D( A8 B- S- }3 o0 L- k* g4 ]
self-hardening resins, shall not be used to prevent loosening.# L; x4 ^$ x" V l
If handles, knobs and the like are used to indicate the position of switches or similar
& C: h0 R; m1 X/ W1 K: O" n* @components, it shall not be possible to fix them in a wrong position if this might create a hazard.% u2 `" ]' M$ D/ D' N4 T
Compliance is checked by inspection, by manual test and by trying to remove the handle, knob,( S% C6 }. {( |8 W* D" E
grip or lever by applying for 1 min an axial force as follows.( s( @! ]( e% I* T6 Y
If the shape of these parts is such that an axial pull is unlikely to be applied in normal use, the
# _+ @! V/ [, i7 `- m' bforce is:
4 V# S6 X, m8 S, }" D- g# h% O1 l– 15 N for the operating means of electrical components; and6 c; y. B- @1 P% t! W0 T. q- c$ y
– 20 N in other cases.
4 ~* W" ]3 C6 z1 cIf the shape is such that an axial pull is likely to be applied, the force is:" a7 V/ i2 N+ @; ?, U0 G
– 30 N for the operating means of electrical components; and
5 p/ Z! n% T: c) h9 S3 p1 z– 50 N in other cases. |
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