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| Flammability rating of internal wiring! A$ L1 @" t9 y' t5 ^
| 9.2.1 a)2 ^5 z. x6 y# o
| 61010-1(ed.2)$ h2 W* z* _3 U5 i
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. H/ X( z8 H5 f% z K dStandard(s)- (year and edition):
7 z" i2 A% _" qIEC 61010-1, ed. 2, 2001
2 l# Q- k7 Q& O2 p, l! ZSub clause(s):
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Sheet n°: DSH 618
* j" _" o& ?2 H* s rSubject:# O7 v) b7 p5 j1 u: ]6 M* e
Flammability rating of internal wiring
* H/ R0 Z0 h( n" A) mKey words:* s4 }1 j3 y# g, P4 f- d4 S5 j) `
Wires, flammability,
$ z0 G5 x! c9 L6 r' zDecision approved by the CTL Plenary meeting 2007. q% O# C9 E1 J* A7 h
Question:
( B! a, p# e% ?$ \; S1 q& |Insulated wires shall be equivalent FV-1 or better. Wires are not generally tested and rated according to FV-1. It is not easy to establish equivalence between different test classifications/methods if you are not involved directly in such testing procedures.
9 k' k; Y9 ^8 F, B4 C S% |Wires typically are rated VW-1 or FT-1. It is unclear if these flammability ratings are equivalent and thus acceptable (Same problem exists with IEC 60601-1 ed. 3)
4 |0 m4 u- \( T! v2 fDecision:* G% k ?0 W# K: M$ t6 X, E
Wires rated e.g. VW-1 or FT-1 or according to IEC 60332-1-2 are deemed equivalent and can be accepted./ m! C: P. N; p
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发表于 2012-9-18 11:38
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