Hello Paul,

Thanks for your input here.
Yes, the confusion is between Reinforced and Basic insulation.
Creepage is twice what I quoted for basic.
(my reference AS3260 2.9.3 table 6)
Pollution degree 2 - material IIIb,  2.5mm x 2 = 5mm
(still doesn't tally with 8mm creepage from EN 60601-1 though?)
(not my particular expertise, but learning...)

Phil.


At 11:25 13/06/00 +1000, you wrote:
>went through my files Phil;
>
>EN 60601-1:1990 ; issue 2,Oct. 1997, table XVI(p106) :
>
>air clearance 5mm, creepage 8mm , for 250V
>               3.2           6         125V
>               7            12         400V (380)
>
>that is for double insulation (reinforced) , as the 3.2 Roberto listed from
>UL
>is double ins. reference , even if air clearance (6 creepage)
>
>2.5mm creepage for 230 did sound too low
>
>
>Basic insulation (supplementary)as comparing to double is 2.5mm air for 250,
>but 4mm creepage (6mm for 400).
>
>Let me know if we confused ourselves .
>
>
>paul
>
>
>-----Original Message-----
>From: Phil Dutton [mailto:[log in to unmask]]
>Sent: Friday, 9 June 2000 14:08
>To: [log in to unmask]
>Subject: Re: [TN] info about creepage distance

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