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[PROT] PDSH 551A Ratings(current and/or voltage) exceeding those in the Standard Sheets

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发表于 2012-11-7 19:42 | 只看该作者 回帖奖励 |正序浏览 |阅读模式
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PDSH 551A5 z1 x4 o. {. N
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Ratings(current and/or voltage) exceeding those in the Standard Sheets
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Standard Sheets
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60127-1(ed.1);am1;am2 & 60127-1(ed.2);am1! S' E+ b* [/ e& D3 G
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Standard(s) (incl. year) Subclause(s) No. Year( E* s0 r" Y! z. ]" R0 H; R
IEC 60127; d9 o% r- n1 r8 J7 C( Z
Standard Sheets: u9 {! {  X$ U
PDSH 551A
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PROT Subject Keywords Developed by To be approved3 W# l7 }" W; x
Ratings(current and/or voltage) exceeding those in the Standard Sheets
5 N" t1 a' O' g! B6 i4 X4 E- W& b0 u+ S) \Ratings, Specification, Rated current, Rated voltage
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2012 CTL Plenary Meeting Question- u1 C, j3 ?8 s5 T. S9 e& b8 V) y
Is it acceptable to issue CB Test Certificate for miniature fuse-links with ratings (current and/or voltage) exceeding the ratings specified in the standard?7 ?1 u. J6 i( {% f! c$ {+ b
Examples:- x5 K' u  e4 h7 V, N
1. Cartridge fuse-links of time-lag low-breaking capacity of Standard Sheet 3 of IEC 60127-2, whose rating is 12 A 250 V;
- K# u# T6 _" n  d2. Cartridge fuse-links of quick-acting low-breaking capacity of Standard Sheet 2 of IEC 60127-2, whose rating is 10 A or 12 A 250 V;
& U7 G4 o  B6 B, T1 |& u6 T8 v3. Cartridge fuse-links of time-lag high-breaking capacity of Standard Sheet 5 of IEC 60127-2, whose rating is 12 A 250 V.1 }0 P# ^0 }" h& F+ f2 K
Decision1 M# H5 l  m3 o9 C0 o. g
It is not allowed to issue a CB Test Certificate for miniature fuse-links whose ratings exceed the ratings specified in the standard, even though the shape and dimensions are as specified in the standard.5 k8 P8 w$ ^% E& s
Rationale:" ^# E+ V3 b0 h; a. \
It is not appropriate to accept non-standardized specifications to issue a CB Test Certificate, which is to confirm compliance with internationally validated IEC standards.) s( b, s) L! C/ }) H1 Y8 ?, \
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