Thanks Rich,
Paper looks very useful in any case.
~Doug
Douglas E Powell
Laporte, Colorado USA
doug...@gmail.com
http://www.linkedin.com/in/dougp01
On Tue, Feb 4, 2020 at 11:46 AM Richard Nute wrote:
>
>
>
>
> Hi Mark and Doug:
>
>
>
> A specific instrument to measure capacitive discharge
Hi Mark:
Both IEC 60204-1 and IEC 60335-1 require measuring the voltage at 1 second
after disconnection from the supply. Presumably, the disconnection is at
the peak of the supply.
Ignoring disconnection at the peak, disconnect at any time and measure the
voltage at the instant of
Ian
Are these harnesses and connectors:
1. within the part of the enclosure that needs to be a Fire Enclosure due to
presence of PS3 circuits,
2. or are they in other parts of the enclosure that doesn't need to be a
Fire Enclosure, as all circuits are PS1, but it just happens that the
There are a lot of exemptions later in 6.4.4, the most significant
perhaps being:
/These requirements do not apply to: – parts with a size of less than 1
750 mm3;
/
But you really need to study the standard yourself, to see the other
exemptions.
On 2020-02-04 13:55, McBurney, Ian wrote:
Dear colleagues.
I have a question regarding the flammability rating of components located
within a fire enclosure.
We have been told by a safety approval engineer that under clause 6.4.6 of
62368-1:2014 that all combustible material within a fire enclosure and not part
of a PS2 or PS3 circuit
Common Mode choke is not exactly optimal for Differential Mode noise, to
express me in that way.
But to suppress DM noise, is it possible to use a CM choke by connecting one
wire on the opposite choke terminal? Would the DM flux in the core add and not
cancel as regular use of CM choke?
I
6 matches
Mail list logo
