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Standard(s)- (year and edition):0 z3 `# e+ {: y, `+ |0 S1 X
IEC 60601-1:1988 Ed.2 Am1+Am2 ' i8 q! Q4 V$ |6 y. mSub clause(s): 57.9 57.9.4 * h* ^8 m6 D" ]8 PSheet n°: DSH-4266 i4 \5 S2 p, S G8 l; @/ \
Subject: Triple insulated windings ) ?4 b3 N7 e( SKey words: Triple, insulated, winding, transformer 8 q$ s0 h2 |" w+ [' j7 t2 R3 ^Confirmed by CTL at its 39th meeting, in Cologne* \1 @5 ?& A2 F: Y! Y0 r
Question: & F k. o+ o- {3 |. ], O' D! G' |Many manufacturers are using a triple insulated winding wire on a transformer, where" ]( k8 `7 J1 y7 m
DOUBLE, or REINFORCED INSULATION is required between the primary and the secondary " `- U$ @% H/ V* _windings. Is this permitted?# i6 ?$ ?! b% ]+ C6 U0 b% a1 x+ x
Decision: ) Z2 ^5 Q7 T$ I& }2 U/ pThis is allowed, but precautions should be taken concerning possible mechanical damages to & M+ s7 p# y& b: _; ythe wires. Other requirements of 57.9 shall be applied.+ O( d( {& b2 g% O2 \! C* I9 R
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[attach]77081[/attach]! }) e) g2 D1 R9 y
DSH 426/ I# j1 b% P/ {4 N8 T