Hi,
I'm developing a project that switches mains voltage via SSR's. Normally I tend to have one board for the SSR's, fuses and connectors, and a seperate main board for the logic / micro etc, but this project needs to have both on one PCB.
I normally copper pour my boards top and bottom, with the pour attached to the ground net. However with mains potential on the same board there is a potential problem having zero volats DC close to 240v AC. I can set the area up for the copper pour to cover just the area for LV components, but have been unable to find any guidelines as to the min legal clearances etc required (not that this will be a commercial product, but there is a chance that one or two mates might want one). I've included cut outs to prevent possible cross over where possible, but would welcome any constructive comments.
Here's a screen capture of the board layout
I'm developing a project that switches mains voltage via SSR's. Normally I tend to have one board for the SSR's, fuses and connectors, and a seperate main board for the logic / micro etc, but this project needs to have both on one PCB.
I normally copper pour my boards top and bottom, with the pour attached to the ground net. However with mains potential on the same board there is a potential problem having zero volats DC close to 240v AC. I can set the area up for the copper pour to cover just the area for LV components, but have been unable to find any guidelines as to the min legal clearances etc required (not that this will be a commercial product, but there is a chance that one or two mates might want one). I've included cut outs to prevent possible cross over where possible, but would welcome any constructive comments.
Here's a screen capture of the board layout