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22.12 中提到的self-hardening resins究竟是什么胶水啊?问过不少人,但都说不清楚。主要是搞不清楚我们常用的胶水当中有哪些是self-hardening resins。TUV他们可以接受哪些? . U* y$ `) d2 i: A
相关条款如下:
7 a. N1 A; W1 W22.12 Handles, knobs, grips, levers and similar parts shall be fixed in a reliable manner so
5 S0 Y$ `9 y/ Z; U' tthat they will not work loose in normal use if loosening could result in a hazard. If these parts
& s5 c2 Q4 v! e, A! rare used to indicate the position of switches or similar components, it shall not be possible to fix
5 J% r' v: s$ d6 Q, ^/ K+ Wthem incorrectly if this could result in a hazard.8 v- y3 [7 E# C4 j
Compliance is checked by inspection, by manual test and by trying to remove the part by$ B6 k% Z$ h; A, a
applying an axial force of1 d2 M' C. a' I f6 `* {+ ~
– 15 N, if an axial pull is unlikely to be applied in normal use;
& x: j7 o/ O1 o( l1 {" S# m– 30 N, if an axial pull is likely to be applied in normal use.2 v3 n8 N1 v a: N
The force is applied for 1 min.1 D" W' J3 k) z- l J. q/ c! p' D
NOTE Sealing compound and similar materials, other than self-hardening resins, are not considered to be
% Y) A0 M8 |: E1 g6 w) q% Z% j* xadequate to prevent loosening.. |
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