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| | Overcurrent Protection, Note
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| 61010-1(ed.1);am1;am2" p3 T o, a2 ~8 g0 }, R8 C
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Standard:2 n; v! d( z) L
IEC 61010
; B1 e' I8 s: K/ ?" zSub clause:, F. r, J( L% }
9.6$ z4 r6 W* \+ V; F- v
Sheet n. 309
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Subject:
# ]: `# d# R+ |$ H8 C; OOvercurrent Protection, Note3 i$ p+ ]# c$ B. k* ?6 i7 J
Key words:. B8 s/ ?" ?& Y4 F
- Mains
& l) O7 ?# v4 U, Z. \- Fuse
* t- `! { p5 v: Q. DProvisional decision taken by ETF3 and confirmed by CTL at its 38th meeting, in Toronto
$ U0 r, u! b2 V. w [1 l# d1 u- t/ vQuestion:7 {8 a) M) a! Y/ X/ p8 x
The note recommends that both supply conductors are fused. How is this recommendation applied?& {6 l3 [1 \; r. o$ y! X& a' }+ D
Decision:
, Z2 B& ?( B* |% x4 u! M& @% _: WThe standard allows the use of a single fuse and therefore, under CB rules this is accepted.4 G' E" s. R- X
Explanation:1 U& }% T" ~, a' E; V1 t# ~
Where a supply is not polarised then equipment employing earthing for protection should be provided with a fuse in both mains conductors.- M! S L& z/ i( G
Evaluators are requested to draw the attention of submittors to this situation and make an informative note in the report as appropriate.3 Z4 O4 [1 U" C6 N2 z
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发表于 2012-9-19 14:49
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