Using FR4 with 240V AC Mains

[Pooh Bear]

Yes the caps have been previously covered.

Basic insulation for 230V mains is a minimum 2.5mm creepage, 2.0mm
clearance but you must fully understand what is meant by 'basic
insulation' .
'Basic insulation' here does not mean the 'minimum acceptable
insulation'

Best to start with EN60950

IEC 60950 actually has some charts for track separation distances btw.

One of those cases where re-reading the standard is the best idea to be sure.

Graham

 

[Mike Warren]

IEC 60950 actually has some charts for track separation distances btw.

One of those cases where re-reading the standard is the best idea to
be sure.

Graham,

Do you know anywhere I can purchase IEC 60950 on-line?
I would like to read through it on the weekend if possible.

-Mike

 

[Pooh Bear]

Graham,

Do you know anywhere I can purchase IEC 60950 on-line?
I would like to read through it on the weekend if possible.

Google gives
http://www.google.com/search?hs=uTc&hl=en&lr=&client=opera&rls=en&q=IEC+standards+online&btnG=Search

It's quite pricey.

I assume it's IT gear then ?

Graham

 

[Mike Warren]

Google gives
http://www.google.com/search?hs=uTc&hl=en&lr=&client=opera&rls=en&q=IEC+standards+online&btnG=Search

It's quite pricey.

Ah. The same place I purchased various Australian standards has them.
I didn't notice that before.

I assume it's IT gear then ?

That is a bit of a grey area. Since it contains a hard drive, DVDROM
and SBC, I think so.

-Mike

 

[Pooh Bear]

Ah. The same place I purchased various Australian standards has them.
I didn't notice that before.


That is a bit of a grey area. Since it contains a hard drive, DVDROM
and SBC, I think so.

The standards can't keep up with modern product developments. You see that could be a DVD recorder in
which case I guess it would be IEC 60065 ( I don't think there's a huge difference though ).

FCC regulations apply in the US for EMC issues btw. Not vastly different in concept to IEC but the
frequencies and levels aren't the same.

Graham