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| Measuring Circuit Terminals (Amd 2)2 b) X4 }# `" {0 j A) |8 q
| 5.1.51 q' ^# q; ~: ~0 `5 g+ k; \9 ^1 _
| 61010-1(ed.1);am1;am2
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Standard:
$ d k; _5 F& I% K9 P* i& V" u. t9 VIEC 61010-1:1990# b( m( n% Y6 u4 N' p
+A1:1992+A2:1995- U) |' K$ C5 j0 s
Sub clause:' f1 A7 F5 L5 W( u. T( U
5.1.5( A* @6 Y" Q, o- p
Sheet n. 297 w- Z9 ^1 g* j6 r+ V) s9 g b
Page 1(1)- O6 [! H' m4 t" S$ A+ E" p
Subject:
. h/ w; E3 \* n( A" }! W8 AMeasuring Circuit Terminals
& i/ w: a2 r5 T3 s' s0 m6 o(Amd. 2), {" Z6 R+ N' X- X1 u* L0 h$ m+ K
Key words:
( G7 m" g' q: M4 h7 y( v m+ x$ Q6 F; cTerminals
2 `" M6 m3 |2 z5 Y& ~0 l. sMarking5 f* K' E. \+ {" ~
Decision taken by
" l1 z( I6 a6 e6 K2 LETF3 and confirmed; x* f" d3 B& O6 ]9 E% ^9 J, O
by CTL at its 38th/ z0 g1 i5 \& `8 ?' c, v2 R
meeting, in Toronto2 [) m8 h/ B F6 d. L2 o
Question:0 [2 @$ o1 s; D8 c* W K; ^
Is it acceptable for a measuring equipment to have its sensing terminals marked:
% R& h. C- r; _“CAT II (600V)) G: [% g; V. g: }$ y
CAT III (300V)”, y4 a" R+ A# K7 v1 n' ]' a Q
Decision:
2 o8 @1 y. X4 `) p5 X" h0 PMarking with both categories with the relevant voltages as shown is acceptable.) I% l9 K5 i$ I% `* y2 N5 Q
Explanation:
8 K# ~. s9 t0 nThe standard allows operation under different categories provided the isolation is suitable for/ c0 G- [, w3 m$ r. r2 [
the voltages concerned. In this case, it is possible to mark both categories since the3 ?: K W, ]7 i9 Q5 {0 t
requirements for Cat II at 600V are the same as those for Cat III at 300V.5 n# _" b" B T6 M8 o6 \; T& w
9 } ` h* K7 s* Q8 U2 I1 {' C
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发表于 2012-9-19 15:11
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