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1.所有保险丝都需要标识分断特性
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F, denoting quick acting;! V) O/ d( t0 F' n
T, denoting time lag;
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' h: b6 b5 _5 H7 G分断特性来源于VDE证书和规格书. B$ _8 a2 `$ K( B! Q- B* Q
: n/ P- ~; D: F4 e8 m' |2.针对于不同尺寸的保险丝标识：
5 r( C" X9 d* I2 _4 q) k小型保险丝：（5x20mm和6.3x32mm）需要标识分断能力
! ?( }, l4 m) S% A4 B9 r
4 @" p) V) q% Z/ D9 ^, |% vT3.15AL250V1 E7 T A2 Y& l. s+ \3 W+ h
T3.15AH250V
( C5 p. x. x8 j9 n$ \F3.15AH 250V$ y) u i7 J* Y0 p9 Q- B9 R
F3.15AL250V5 [" U4 K, h( e
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超小型保险丝：不需要标识分断能力 ' l# |9 [, E; u% o
T3.15A 250V- H; ?7 W: G6 a! e3 W) ?
F3.15A 250V
% `6 w* m* q- C# t; N+ Z1 }# ~ / O: W$ h" \% }( J1 I" ?
不建议两种规格的保险丝一起使用：2 m% M% j7 i# F" [2 w6 E
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针对以上的标识不会存在机构之间的相互不接受！& b* X) M" o7 v
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现在很迷茫3C要求必须要标示分断能力，而CB要求不要！: R$ E7 V9 O1 \9 q6 S$ I% r8 F
14.5.2.2 For fuse-links according to IEC 60127, the following marking shall be located on
9 m. [8 |; {4 I6 Reach fuse-holder or close to the fuse-link, in the given order:
1 g6 g. l0 B6 _% h/ R– a symbol denoting the relative prearcing time/current characteristic;
0 M2 ]% _* f9 w3 O% J9 `- Uexamples are:
- s% L( N# L) SF, denoting quick acting;
! z8 e! n, s. L; Z) x" wT, denoting time lag;
- J3 }0 a @4 w: E$ }% `– the rated current in milliamperes for rated currents below 1 A, and in amperes for rated
! B$ _% ]* X. ~* S, v& Y) `+ B7 |$ \currents of 1 A or more;; l- K0 z8 c2 n" @( q% o5 E# J# G
– a symbol denoting the breaking capacity of the assigned fuse-link;
1 @6 p1 h& ^& f2 [( H1 K ]examples are:) w8 [' v; C4 s' C8 D9 p
L, denoting low breaking capacity;
1 z0 p1 ^/ n! W1 B9 |7 V% }E, denoting enhanced breaking capacity;
. }; w/ f+ l3 { n: E OH, denoting high breaking capacity.8 m3 M5 f8 K2 \! Y6 p$ h
Examples of marking: T 315 L or T 315 mA L
8 ~( [( I; K& D& r& I$ I( rF 1,25 H or F 1,25 A H
( ]' N1 o" z2 _4 M$ {– 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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