Rich,
This is from a the recently received appendix pages for UL 1950.
1.7 Power Supply Cords -
B. Detachable Power supply cord - A detachable power supply cord as
described in the individual sections of the procedure may or may not be
shipped with the unit. If a cord is provided, it should either:
<<snip>>
If a detachable power supply cord is not provided, no further action is
required.
This at least addresses UL. I don't have a reference for TUV. My
certificates describe it but that's because we do provide one. Don't know
what happens if I didn't ship one.
Gary
-----Original Message-----
From: WOODS, RICHARD [SMTP:[email protected]]
Sent: Friday, December 04, 1998 6:56 AM
To: [email protected]
Subject: RE: Questions on Plug Adapters
Interesting. I checked one of our ITE UL reports from 1997 and the
general
section requires shipping either a UL Listed power cord or an
acceptable
cord when shipping outside the US. What do others have to say about
this?
----------
From: [email protected] [SMTP:[email protected]]
Sent: Thursday, December 03, 1998 4:28 PM
To: [email protected]; WOODS, RICHARD
Subject: RE: Questions on Plug Adapters
Richard,
It has been a few years now that for ITE, NRTLs do not
require a
detachable type power supply cord to be shipped with the
unit. At
some point, they required that for units not provided with
detachable cords, a non-permanent marking be provided by the
power Inlet "See Installation Instructions for Proper
Selection of
Power Cord" or an equivalent marking together with the
relevant
instructions on the proper power cords to be selected in the
field.
However for some time now, this requirement has been dropped
and provision of a Listed and/or Approved cord set is
optional.
Regards,
From: "WOODS, RICHARD"
<[email protected]>
To: [email protected]
Subject: RE: Questions on Plug Adapters
Date sent: Thu, 3 Dec 1998 09:12:34 -0500
Send reply to: "WOODS, RICHARD"
<[email protected]>
> If you have UL Listing, then you must ship a power cord
with each
unit. The
> cord shipped must be acceptable for the target country -
i.e.,
have the
> appropriate safety approval.
>
> ----------
> From: CRAIG HENSLEY [SMTP:[email protected]]
> Sent: Wednesday, December 02, 1998 3:20 PM
> To: [email protected]
> Subject: Questions on Plug Adapters
>
> My company manufacturers external high capacity disk
drive
systems
> (computer peripherals) which are shipped worldwide.
>
> North American shipments include an ac-dc direct
plug-in
power
> supply.
> International shipments include an ac-dc "desk-top"
power
supply
> along
> with the appropriate detachable cord set. All the
power
supplies we
> use
> are UL-Listed, TUV, CSA, and SAA certified.
Cordsets carry
all the
> appropriate certifications/approvals.
>
> There have been some grumblings internally because
of the
many
> international system "configurations" that must be
maintained due to
> the
> number of different cord-sets. Depending on where a
particular
> drive is
> being sent dictates the type of cord set that is
included.
This
> introduces
> additional control, inventory, and warehousing
problems.
>
> One suggestion that has been made is to ship one
style of
cord (or
> power supply) with several different plug adapters.
Then
we
> wouldn't
> have to worry so much about what power cord goes
with what
drive.
> For example, in South America the direct plug-in
power
supply could
> be
> provided along with the Euro and Australian style
plug
adapters.
> In Europe, the "desk-top" power supply and
Euro-style
cord-set could
> be
> provided along with a UK style plug adapter.
>
> I am not comfortable with this at all and am hoping
that
some of you
> out
> there have had some experience with these types of
plug
adapters.
> My
> questions/concerns are:
>
> * How can the connection to the AC mains be ensured
when
using a
> plug adapter?
> * One company claims they have a UL recognized plug
adapter.
> However, I can't find anything more with regards to
safety
> certifications.
> I don't think TUV will even certify this type of
adapter.
What
> about the
> other agencies?
> * Does anyone have any additional recommendations to
help
> accommodate the various worldwide plug styles? I
got to
believe
> others
> have gone through this same "dilemma".
> * How "acceptable" is it to provide a product
without a cord
and
> just
> have the user procure the cord set applicable for
their
particular
> country?
> * Is anyone aware of other manufacturers that
include plug
adapters
> with their products?
> * Which is worse? Providing the direct plug-in
power supply
with
> plug
> adapters, or providing the "desk-top" power supply
and
detachable
> cord
> set with plug adapters.
>
> Any and all information is appreciated as I am once
again in
the
> unenviable position of potentially squashing another
brilliant
> marketing
> idea. Maybe I'm making a big deal out of nothing,
but as
soon as
> someone starts changing the product interfaces with
the
AC-mains I
> get
> a little nervous.
>
> Thanks,
>
> Craig Hensley
> Iomega Corp.
> Roy, UT.
>
>
>
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