|
1.所有保险丝都需要标识分断特性 $ m1 [ ~! _" y |
! M6 ?) l2 u6 d9 Z8 _' Q: g l
F, denoting quick acting;
3 D8 j+ p% s* }; g, V6 O0 CT, denoting time lag;
4 O4 z" v1 o/ f $ R7 Q" l) G. @3 d/ z, ]
分断特性来源于VDE证书和规格书
# S) ?* w" d. v8 x
" K) u j" I+ R! O2.针对于不同尺寸的保险丝标识:; D, X9 I! H8 z" E, [
小型保险丝:(5x20mm和6.3x32mm)需要标识分断能力 0 `3 q6 o+ u6 U3 l
# _/ M6 Z, r# t2 [
T3.15AL250V- J1 E1 `, k' I" D9 S. F
T3.15AH250V
; K- X5 r: n# t* j( I+ XF3.15AH 250V
* N9 E. Z6 }( t6 o5 W# DF3.15AL250V; t! Z" m2 N, k/ s0 G. G: H! U
5 a+ Z8 a9 m# P/ m8 b4 M2 [% t- H超小型保险丝:不需要标识分断能力 & A7 N+ A3 W, @( p0 m7 G
T3.15A 250V% ? Y: t3 ~+ w" G B! f, T3 D( b& J4 k
F3.15A 250V/ Q2 t8 q3 N# T& H
) J5 |/ E; e9 O8 u1 s" _" }+ m, B
不建议两种规格的保险丝一起使用:
8 Y/ j- Y9 I. u, j P3 |% E# @0 v $ w/ }5 n7 Y! A% n1 k/ v4 `# j; C5 i
针对以上的标识不会存在机构之间的相互不接受!
3 I5 ?& K# _, U2 B% O
" C1 i k: k5 ?$ t7 p7 M现在很迷茫3C要求必须要标示分断能力,而CB要求不要!* I5 J+ x8 H/ |' ^& L0 @
14.5.2.2 For fuse-links according to IEC 60127, the following marking shall be located on1 k* J. Y- O( |) {2 M. ]& o$ w8 i5 M
each fuse-holder or close to the fuse-link, in the given order:
) t$ {/ v! c& \: i4 } a symbol denoting the relative prearcing time/current characteristic;
( c* Q% H" P; d2 {7 w5 ~examples are:/ m' n2 p' n* y& K
F, denoting quick acting;
# S1 {/ R- b6 ^$ ~. I3 eT, denoting time lag;
: @8 @/ f ^2 M. j the rated current in milliamperes for rated currents below 1 A, and in amperes for rated
+ K7 c# U; H5 n$ {4 [4 V' l' I) Scurrents of 1 A or more;
3 {6 \' ?$ U i! j3 z! i. [3 f a symbol denoting the breaking capacity of the assigned fuse-link;, f; Q! _4 z7 p9 l/ W0 o/ L
examples are:+ ^3 h+ ]: P& l- d) O
L, denoting low breaking capacity;& M1 H& \7 h: k: J# s
E, denoting enhanced breaking capacity;
7 y; q- z2 n8 F, d5 S1 V" @& uH, denoting high breaking capacity.
+ I6 c+ Y0 @# x- c. L2 kExamples of marking: T 315 L or T 315 mA L7 H7 s7 p, ~: U' y) x- v) i" C, T; S
F 1,25 H or F 1,25 A H
B( d6 ~- r2 O+ C9 n+ g the voltage rating of the fuse, where a fuse with a lower rated voltage could be fitted in error. |
|