Spacing between AC mains traces on pcb?

[Rolavine]

Anyone know the UL limits for space between traces on a pcb that carry 220v 3
phase? Any free spots on the web that have this info?

Rocky

 

[Paul Burridge]

On 03 Jan 2005 20:19:29 GMT, rolavine@aol.com (Rolavine) wrote:

Anyone know the UL limits for space between traces on a pcb that carry 220v 3
phase? Any free spots on the web that have this info?

"Air is a pretty good insulator."
--

"What is now proved was once only imagin'd." - William Blake, 1793.

 

Unfortunately, tracking across the surface of a printed circuit board
is a different problem, and cutting slots is expensive.
----------
Bill Sloman, Nijmegen

 

[Frithiof Andreas Jensen]

"Rolavine" <rolavine@aol.com> wrote in message
news:20050103151929.06537.00002552@mb-m15.aol.com...

Anyone know the UL limits for space between traces on a pcb that carry
220v 3
phase?

The UL standard books relevant to what application this is .. and whether
this is "Safety Insulation" or merely "Insulation" ?? (There are several UL
standards, I have an "Office/Indoor" somewhere on Paper, "Industrial" would
be different, e.t.c.).

Any free spots on the web that have this info?

What did Google say about whatever Standard Institute applicable to your
part of the world?