All,
600 V is standard in Canada.
--
Doug Nix
d...@mac.com
http://www.dougnix.net
If you pick up a starving dog and make him prosperous, he will not bite you;
that is the principal difference between a dog and a man. - Mark Twain
> On 21-Sep-16, at 15:52, Richard Nute wrote:
>
>
> I woul
also affect dielectric
strength tests and so on so, please still ask the questions, or thereabouts.
John E Allen
W.London, UK
From: Richard Nute [mailto:ri...@ieee.org]
Sent: 21 September 2016 20:52
To: 'john Allen'; EMC-PSTC@LISTSERV.IEEE.ORG
Subject: RE: [PSES] standard for p
I would seriously consider pointing out to your customer that their specified
supply voltage is not a common one
I suspect your customer already knows this. The issue is determining that the
product is safe, given that the mains ratings exceed those in many safety
standards. While stand
very
> unusual and where no-one here on this very experienced forum can provide
> any definitive, or even “educated”, guidance.
>
>
>
> John E Allen
>
> W.London, UK
>
>
>
> *From:* Boštjan Glavič [mailto:bostjan.gla...@siq.si]
> *Sent:* 21 September 2016 05:47
even “educated”, guidance.
John E Allen
W.London, UK
From: Boštjan Glavič [mailto:bostjan.gla...@siq.si]
Sent: 21 September 2016 05:47
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] standard for power suply for server room.
Hi Ken,
UL1012 has the same limitation as 60950-1.
IEC 6
Hi Zhang,
I do not know what technology they use for generating 750VDC. It could be some
new technology.
They do not need to cover ITU or ETSI standards.
Best regards,
Bostjan
From: Zhangguoqing (A) [mailto:zhangguoq...@huawei.com]
Sent: Wednesday, September 21, 2016 11:24 AM
To: Boštjan Glavi
Hi Bostjan,
Why your Customer ask for 750Vdc input power supply? Normally for the DC input
data centre equipments , the input is 400Vdc. Please find the standard ITU
L.1200 and ITU L.1201, or ETSI 300 132-3-1, or ATIS-0600315.01.2015.
Best Regards,
ZHANG Guoqing
Huawei Technologies Duesseldorf
If this is for European approval, one may simply use EN 60950 and make up a
Technical construction
file listing the essential differences. A decent (now mandatory anyway) risk
analysis would cover these differences, showing up as in individual risks. You
may then choose to extrapolate 6950 value
: Wednesday, September 21, 2016 6:36 AM
To: Boštjan Glavič
Cc: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] standard for power suply for server room.
Hi Bostjan!
You might be able to use 60950 or (UL1012?) anyway; I know the scope says
"Mains or Battery powered up to 600V", but I think th
Hi Bostjan!
You might be able to use 60950 or (UL1012?) anyway; I know the scope says
"Mains or Battery powered up to 600V", but I think the focus of that limit
(vs the 1000V limit in the LVD for example) might be on just Mains powered
circuits, because 600V is the delineation point between "Low Vo
Subject: Re: [PSES] standard for power suply for server room.
Can it be that the output is indeed floating and nominally +/- 375V? If you
use this, some sort of fault detection would be required to shut down if either
end point becomes grounded. Sometimes this get tricky if the fault
Can it be that the output is indeed floating and nominally +/- 375V? If you use this, some sort of fault detection would be required to shut down if either end point becomes grounded. Sometimes this get tricky if the fault detection can be shown to fail in an unsafe way. If achieved, you can use
12 matches
Mail list logo
