Electronics > Projects, Designs, and Technical Stuff
Isolation in AC lines on PCB
<< < (3/3)
ChrisGreece52:
All measurements you see on the pins are from the center of each pin.
Also despite of the answer being simple i had not though of it despite busting my head for a solution. Thank you.
Heartbreaker:

--- Quote from: ChrisGreece52 on April 09, 2020, 10:26:12 am ---Due to some changes in components i changed the layout of the board once again.

I have a question about the soldermask insulation. The bottom N trace is 2.9 mm away from a relay contact. That is the NC contact that would be live during most of the time.
Edit : I read the conversation above and got my answer.

--- End quote ---

There is also an issue with the distance between NO on one relay to NC on the other. When one relay is engaged and the other is not the full line voltage spans this distance through the load(s) connected at the connectors.
ChrisGreece52:
Did not see that till now ... Even with the cutout i added there is a 4.5mm gap from the center of each pin. (NO and NC)
Edit : Made some adjustments. The gap from the relay pins increased to 5.5mm.
Edit 2 : Attached a screenshot of the new layout. The measurements are taken from the edge of the pad this time around.
free_electron:
Those kind of board cutouts won't work ... they are not millable ( the corners cannot be created, you need rounded corners .

non-plated cutouts are milled using either a 1mm or a 2 mm edge router bit. draw those as a line with 1mm or 2mm width and then convert the line into a board cutout.
ChrisGreece52:
Oh ok got it ... i would prefer it as well since the polygon shapes did not come out pretty  :P
Navigation
Message Index
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod