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1.所有保险丝都需要标识分断特性
1 q- d. g1 B% }. Y9 g$ h1 \( c " A; K' F3 k2 m8 z
F, denoting quick acting;
8 Z; b' `; P9 G, }T, denoting time lag;
6 Q. b; l+ Q9 `( G: F 6 A6 C4 N) A+ e/ b
分断特性来源于VDE证书和规格书
" {* s) j1 z' b) c! \3 W
8 n Q6 _0 I- t% k. T b6 I% b% B2.针对于不同尺寸的保险丝标识：: x# e+ m. l8 |- B% V
小型保险丝：（5x20mm和6.3x32mm）需要标识分断能力
5 C$ ?7 u+ ~, T C% U ( n3 L S# t0 h6 b# Q/ a
T3.15AL250V
+ L$ g" y, @" a5 `) c$ ?* eT3.15AH250V
$ R* ]0 i. }+ q* T, e" aF3.15AH 250V1 @4 ~: C3 I9 \$ K
F3.15AL250V
/ t+ i8 D$ r1 ^ D2 B
; h- _6 O" `' J5 E) L0 a超小型保险丝：不需要标识分断能力 , ?: |, X2 V! `
T3.15A 250V
$ K; A* O3 @, T1 c# wF3.15A 250V
* l5 [+ n' J5 m! o6 l4 M$ S
+ h8 y# t( z# A5 |+ f$ B' w不建议两种规格的保险丝一起使用：
8 T' m4 W# @" Q2 @/ x: P ! ]% i9 V/ A/ a9 n- y
针对以上的标识不会存在机构之间的相互不接受！; g! f" {) g8 R% A' v0 G, w
/ ]- z& a* r( w) Z
现在很迷茫3C要求必须要标示分断能力，而CB要求不要！ F" n5 b* B% y1 m. J( C5 h
14.5.2.2 For fuse-links according to IEC 60127, the following marking shall be located on
: H7 a0 V7 b4 J( f$ O2 Q) Yeach fuse-holder or close to the fuse-link, in the given order:" r$ I4 C/ ^& T& Y0 }$ O( N
– a symbol denoting the relative prearcing time/current characteristic;+ S/ J8 w; B# z: E6 N! e
examples are:
$ r0 ]5 n! W N. M/ WF, denoting quick acting;
6 j M0 p' q6 G; M4 K$ V! yT, denoting time lag;2 }( v- e1 B/ P- i1 [5 ?
– the rated current in milliamperes for rated currents below 1 A, and in amperes for rated
- |7 Y' e% S, e6 @. o1 U. ^, ccurrents of 1 A or more;
5 L; [, I/ h3 j, {6 E0 ?– a symbol denoting the breaking capacity of the assigned fuse-link;" v! F$ o: W' b& k
examples are:" m0 D, Q; |7 z4 ^9 k9 X
L, denoting low breaking capacity;
! x7 w0 Q# T; [/ tE, denoting enhanced breaking capacity;$ { I6 @$ |7 D! s
H, denoting high breaking capacity.
5 W4 Q/ D0 k5 p& ^8 lExamples of marking: T 315 L or T 315 mA L
7 }* I! J; Q& Q5 k/ F$ Z/ mF 1,25 H or F 1,25 A H9 L3 T$ ? f. k @0 L* T, T7 o
– the voltage rating of the fuse, where a fuse with a lower rated voltage could be fitted in error. |
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发表于 2011-5-20 15:09
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