>>Anaconda Sealtite is 12.6mm I/D, 17.8mm O/D;
Mark, thanks for the details, but are you certain about that 17.8mm diam?
Seems like that would really interfere with most holes.
- Robert -
-----Original Message-----
From: Mark <m...@cjbdev.demon.co.uk>
To: emc-p...@ieee.org <emc-p...@ieee.org>
List-Post: emc-pstc@listserv.ieee.org
Date: Wednesday, October 13, 1999 1:28 PM
Subject: Re: Conduit entry dimensions
>
>On 12 Oct 99, at 13:29, Jim Eichner wrote:
>
>> > Aha! Now I understand why EN60950 only tells us about the OD of the
>> > conduit: because that's the same as the OD of that part of the
>> > conduit hub that mates with your enclosure! If (big IF) the methods
>> > explained below for the UK also apply everywhere else in Europe, then
>> > I have part of my answer. We would simply make the knockout slightly
>> > larger than the OD of the conduit.
>> >
>> > There is another question still to be answered though. Is the 16mm OD
>> > in EN60950 truly correct, or is it really 16mm ID as discussed
>> > earlier?!
>
>I hadn't offered any help (?!) on conduits before, as though I use
>them, I don't really know much detail about them - I just specify
>M20 clearance for conduit termination.
>
>So I phoned a British steel conduit manufacturer - after a bit of
>searching, a helpful young lady told me that for their 16mm, the
>inside diameter is 13.2mm with wall thickness of 1.4mm (which
>makes 16mm outside diameter, my mental arithmetic tells me).
>
>I also looked in a couple of catalogues for flexible conduit - here it
>all depends on the construction of the particular maker's conduit,
>but the termination at the end will always fit in an M16 tapped
>hole or through a clearance hole (say 16.5mm). As an example,
>PMA UK Ltd's UL recognized Heavy Duty flexible conduit has an
>I/D of 11.6mm and an O/D of 15.8mm; Anaconda Sealtite is
>12.6mm I/D, 17.8mm O/D; Kopex International Stainless Steel
>I/D 13mm, O/D 16mm.
>
>That's for the UK. Whether Europe is the same....?
>
>Regards,
>
>Mark
>
>
>--
>Mark Hone
>
> Wellman CJB Limited Email: m...@cjbdev.demon.co.uk
> Airport Service Road Tel: +44 (0)2392 629239 (Direct)
> Portsmouth, Hampshire Tel: +44 (0)2392 664911
> PO3 5PG, ENGLAND Fax: +44 (0)2392 697864
>
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