The routine voltage test on mains is mandatory, but the method has options.
This is how I read the standard.
--
Thanks, -doug
Douglas E Powell
doug...@gmail.com
http://www.linkedin.com/in/dougp01
On Thu, May 10, 2012 at 2:04 PM, John Woodgate wrote:
> In message
> <**64D32EE8B9CBDD44963AC
Yes, but in this case, disconnection is not an option.
Thanks, -doug
Douglas E Powell
doug...@gmail.com
http://www.linkedin.com/in/dougp01
On Thu, May 10, 2012 at 1:52 PM, Kunde, Brian wrote:
> F.3.2 says, “…test of F.3.1 *can* be carried out…..”. Because it says
> “can” and not “shall” doe
In message
<64D32EE8B9CBDD44963ACB076A5F6ABB0261DE06@Mailbox-Tech.lecotech.local>,
dated Thu, 10 May 2012, "Kunde, Brian" writes:
F.3.2 says, "...test of F.3.1 can be carried out.". Because it says
"can" and not "shall" does this make this test optional?
It seems, from the limited conte
F.3.2 says, "...test of F.3.1 can be carried out.". Because it says "can"
and not "shall" does this make this test optional?
Doesn't the previous version of this standard allow you to disconnect surge
suppressors during the HiPot test?
The Other Brian
From: emc-p...@ieee.org [mailto:emc-p.
Doug,
I wouldn't credit the TC 66 has having MOV component
knowledge, just perceptions.
Since my last message I have sent messages to the Chair
and Secretary of TC 66 wearing my IEC SC 37B chair hat.
I was restrained for a change, merely stating they were
breaking the laws of phys
In message
,
dated Thu, 10 May 2012, Doug Powell writes:
I would put a graphical clip of the curves in this email with areas of
concern highlighted except I remember this is prohibited on the
listserv.
You could put them on a web site and tell us where.
--
OOO - Own Opinions Only. Try www.
Mick,
Sorry I didn't review this email before I just sent my last. Clearly you
see the same problem as I. I have to wonder if the committee in reviewing
this clause only used data sheets and did not validate in the lab. Or is
it possibly the committee members just missed this?
I would like to
Ah,
This is the problem, if you look at Current/Voltage curves of the MOV
device, 0.9 of the Vc for the 8/20 uS point still has a significant amount
of current passing through the device to earth. Too much for a hipot
running 50/60 Hz or DC. It is an impossible test.
I would put a graphical cl
Doug,
My previous message gave the IEC rulings - terms
clamping voltage and nominal varistor voltage - for two
specific points on the MOV clamping (clipping) characteristic.
For completeness IEC 61010-1, ed. 3.0 (2010-06) defines the
following:
*working voltage *
highest r.m.s. value o
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