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& D; t$ ?: X$ y9 e8 i | | Overcurrent Protection, Note
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| 61010-1(ed.1);am1;am2
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Standard:
+ N" o$ i; x; n: ~) ]- U7 g" |IEC 61010
% d/ C. S; J7 \2 P+ A7 M! ?Sub clause:6 I- g7 C$ b+ \7 C) @1 ]
9.6
! i. X9 c s5 b4 v- WSheet n. 309
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- @+ i w4 k [. P3 V8 [Subject:" F: I4 u& l$ Y7 p8 Q& t9 P F
Overcurrent Protection, Note' z! C4 t" R4 o
Key words:
6 f$ f/ `6 x: A3 H x; t$ I- Mains. P" z& W" J k- T
- Fuse: z. ~" v. |7 v ~
Provisional decision taken by ETF3 and confirmed by CTL at its 38th meeting, in Toronto
" c* W, @- ]7 K: E& hQuestion:, |) q" _$ B1 }1 N9 O$ r9 v0 |4 ^
The note recommends that both supply conductors are fused. How is this recommendation applied? }7 z- z; B1 p: L! @9 V
Decision:
; \# y `/ R) B' |The standard allows the use of a single fuse and therefore, under CB rules this is accepted.4 W% }$ O% q5 k& X' P
Explanation:: _' s$ N* {; N
Where a supply is not polarised then equipment employing earthing for protection should be provided with a fuse in both mains conductors.
% f3 k% q. Y, s- o& O6 h* }" WEvaluators are requested to draw the attention of submittors to this situation and make an informative note in the report as appropriate.0 M+ K1 M( [ Z( Z1 I% D
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发表于 2012-9-19 14:49
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