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

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PDSH 551A * A8 [) M$ r( p( ?# e

Ratings(current and/or voltage) exceeding those in the Standard Sheets 3 E% }! Z; K/ g

Standard Sheets

60127-1(ed.1);am1;am2 & 60127-1(ed.2);am1

Standard(s) (incl. year) Subclause(s) No. Year
IEC 60127
Standard Sheets
PDSH 551A
2012 Category
PROT Subject Keywords Developed by To be approved
Ratings(current and/or voltage) exceeding those in the Standard Sheets
: l: _9 F. ^& ?9 FRatings, Specification, Rated current, Rated voltage
, b  N$ ^8 U& ]1 K" iETF 7
* B* J% Z& x" C# O2012 CTL Plenary Meeting Question
( N. u9 \% T! m9 k# u/ {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?
6 @+ t6 Z+ S1 W& r# OExamples:
9 p1 _/ E+ j- u, w8 l1. Cartridge fuse-links of time-lag low-breaking capacity of Standard Sheet 3 of IEC 60127-2, whose rating is 12 A 250 V;
+ }2 c+ |9 Q" S$ \7 _! J+ h2 d9 j2. 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;
3. Cartridge fuse-links of time-lag high-breaking capacity of Standard Sheet 5 of IEC 60127-2, whose rating is 12 A 250 V.
Decision
" i1 k7 H' K) L: h7 ^- {, RIt 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.
Rationale:
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.
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