Re: Creepage on PCB Internal Layers

2002-08-15 Thread JPR3
In a message dated 8/15/2002, Gary McInturff writes: Okay, now don't everyone write to my layout guys, but I never bothered to tell them they could change the constraint files for closer routing on inner layers, so they do apply the spacings. I have try to keep an eye for it causing us

RE: Creepage on PCB Internal Layers

2002-08-15 Thread T.Sato
On Wed, 14 Aug 2002 15:22:21 -0400, John Juhasz john.juh...@ge-interlogix.com wrote: While a different standard was originally referenced in this thread, I'd like to consider for a moment Chris Maxwell's question ...there should be some minimum distance... on an inner layer of the

RE: Creepage on PCB Internal Layers

2002-08-14 Thread John Juhasz
: Rich Nute [mailto:ri...@sdd.hp.com] Sent: Wednesday, August 14, 2002 12:12 PM To: chris.maxw...@nettest.com Cc: richard.pa...@exgate.tek.com; emc-p...@majordomo.ieee.org Subject: Re: Creepage on PCB Internal Layers Hi Chris: To me, it's sort of funny in that it just says that the Creepage

Re: Creepage on PCB Internal Layers

2002-08-14 Thread Rich Nute
g7DK9no01090 for emc-pstc-resent; Tue, 13 Aug 2002 16:09:49 -0400 (EDT) From: j...@aol.com Message-ID: 15f.12358e09.2a8ac...@aol.com Date: Tue, 13 Aug 2002 16:09:32 EDT Subject: Re: Creepage on PCB Internal Layers To: chris.maxw...@nettest.com, richard.pa...@exgate.tek.com

Re: Creepage on PCB Internal Layers

2002-08-14 Thread Rich Nute
Hi Chris: To me, it's sort of funny in that it just says that the Creepage and Clearance distances do not apply on inner layers of void free PCBs. That's nice; but I can't find where a distance is specified. I mean, I would think that there should be some minimum distance between

RE: Creepage on PCB Internal Layers

2002-08-14 Thread richard . payne
'; Payne, Richard; emc-p...@majordomo.ieee.org Subject: RE: Creepage on PCB Internal Layers I have always found the 1010 standard to be very vague.I haven't worked with this standard in a while and I am sure others on the list can offer a more complete interpretation but take a look

(Fwd) RE: Creepage on PCB Internal Layers

2002-08-14 Thread jgriver
on PCB Internal Layers Hi Chris: The 2nd edition of 61010 has the statement in clause 6.7: There are no CLEARANCE or CREEPAGE DISTANCE requirements for the interior of void-free moulded parts, including the inner layers of multi-layer printed circuit boards. UL3111 has the following

Re: Creepage on PCB Internal Layers

2002-08-13 Thread JPR3
In a message dated 8/13/2002, you write: To me, it's sort of funny in that it just says that the Creepage and Clearance distances do not apply on inner layers of void free PCBs. That's nice; but I can't find where a distance is specified. I mean, I would think that there should be some

RE: Creepage on PCB Internal Layers

2002-08-13 Thread Chris Maxwell
Subject: RE: Creepage on PCB Internal Layers Hi Chris: The 2nd edition of 61010 has the statement in clause 6.7: There are no CLEARANCE or CREEPAGE DISTANCE requirements for the interior of void-free moulded parts, including the inner layers of multi-layer printed circuit boards

RE: Creepage on PCB Internal Layers

2002-08-13 Thread richard . payne
13, 2002 11:56 AM To: EMC-PSTC Internet Forum Subject: Creepage on PCB Internal Layers Hi all, I could have sworn that I read somewhere in EN 61010-1 that creepage distances on internal layers of void free PCB boards were reduced from the normal distances. For the life of me, I can't find

Creepage on PCB Internal Layers

2002-08-13 Thread Chris Maxwell
Hi all, I could have sworn that I read somewhere in EN 61010-1 that creepage distances on internal layers of void free PCB boards were reduced from the normal distances. For the life of me, I can't find the statement. I also seem to remember that there was no hard, fast number given. So,