Electronics Forum | Fri Apr 19 15:52:31 EDT 2002 | davef
So, what is 'high voltage'? anywho? * We sort of use 10 kV as the starting point for 'high voltage'. * National Electrical Code defines a much lower starting point (300 or 600 V?),
Electronics Forum | Thu Apr 18 16:55:39 EDT 2002 | davef
Yes. Ceramic is much better. We use FR4 in fairly high voltage circuits. What are the particulars? * Where are you arcing * How many layers, prepreg, etc
Electronics Forum | Thu Apr 18 11:44:34 EDT 2002 | jsmith01
Does anyone know of a PCB material that is better at preventing arcing than fr4 or g10?
Electronics Forum | Wed Sep 03 20:51:35 EDT 2003 | davef
Dunno about UK suppliers, how about: * Isola P97 / P27 * Polyclad GI-787 If laminates are so bloody expensive in UK, why not them have made in the States?
Electronics Forum | Mon Jun 25 09:59:41 EDT 2007 | slthomas
Plastic of any kind for compressed air is a code violation here. It's not just the pressure, it's the durability. PVC is pretty brittle and if you smack it with a pallet jack it's a lot more likely to shatter and generate high speed shrapnel than cop
Electronics Forum | Tue Jun 26 07:15:06 EDT 2007 | zanolli
I've used PVC, black iron and copper: Forget PVC, too dangerous as joint strength completely reliant on glue, black iron will rust and accumulate debris over time, copper is the best but now because of very high Cu commodity prices could very well be
Electronics Forum | Fri Aug 29 05:48:57 EDT 2003 | russells
Can anyone help? We need a PCB material capable of working at 200 deg C, we are currently using Norplex P95 but we are being stung with huge minimum order quantites as we are in the uk and all the manufacturers have to buy it in on special order. Doe
Electronics Forum | Sat Jun 23 11:35:58 EDT 2007 | grantp
Hi, Yes, we just built a new plant, and used copper again. The stuff we cut out of the old building was copper, and it was fine without any issues. We lay it on an angle so condensation flows to an end, and can be periodically vented, and we take a
Electronics Forum | Tue Jun 22 17:14:41 EDT 1999 | Dennis Fall
I am looking to apply 10-15�m of a conductive material that will withstand 280�C. Our product consists of an alumina substrate sputtered with NiCr (2000�) and Copper (2000�) and 15-60 �m of electroplated copper (all metals patterned on the substrae)
Electronics Forum | Wed May 26 16:36:02 EDT 1999 | John Thorup
| Looking for help in finding suitable high temp gasket for | use in smt assy support application. | | Gasket used to restrain flex on smt module in area prone | to localized heating due to nearby device removal (hot air). | | Current gasket mtl (n
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