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$ {! `0 }% @' x+ {: RStandard(s)- (year and edition):
) Z& [1 u' A& k7 B$ NIEC 60601-1:1988 Ed.2 Am1+Am2/ x0 A+ f+ m5 z! ~. {0 _
Sub clause(s): 57.9 57.9.4
* \0 E: `5 _3 d& X: iSheet n°: DSH-426
7 G7 W' O; u* P! X) n9 _8 N2 e1 mSubject: Triple insulated windings# D7 t- Z+ `; y" d3 K
Key words: Triple, insulated, winding, transformer% e. L1 y$ O2 I) f5 w5 X( W
Confirmed by CTL at its 39th meeting, in Cologne: o5 b/ `% ~- C: M2 J$ ]
Question:
0 Q R) _/ Z$ E. A: T e6 B4 EMany manufacturers are using a triple insulated winding wire on a transformer, where
# W1 p7 Z; T( q+ U! eDOUBLE, or REINFORCED INSULATION is required between the primary and the secondary
( X! t1 k: j1 b' l+ ?windings. Is this permitted?8 ?3 {0 K: K# M0 W
Decision:
$ l7 A$ g0 C8 `, gThis is allowed, but precautions should be taken concerning possible mechanical damages to' ^1 c- L) H* w) |& v
the wires. Other requirements of 57.9 shall be applied.
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发表于 2012-11-5 10:34
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