Re: [PSES] IEC 61010-1 og pollution degree

In message , dated Fri, 2 Jul 2010, ralph.mcdiar...@ca.schneider-electric.com writes: >It's generally thought that ceramics do not track. They don't, because they don't contain carbon or any other element that would 'track'. BUT if you get them hot enough (over 1000 C), they melt and the liqu

Re: [PSES] IEC 61010-1 og pollution degree

Avago has ceramic optocouplers. They are for rugged environments where a hermetic package is required, and priced commensurately. Orin On Fri, 2 Jul 2010 10:51:03 -0700 Ralph McDiarmid writes: As I see it, a reduction from PD3 or PD2 to PD1 is possible with this technique. Furtherm

Re: [PSES] IEC 61010-1 og pollution degree

As I see it, a reduction from PD3 or PD2 to PD1 is possible with this technique. Furthermore, if you can show that there are nor voids or bubbles under the potting or coating, then you don't have a creepage distance requirement there since there is no 'surface'. You still have a creepage distanc

OFCOM PLT interference report

http://www.ofcom.org.uk/research/technology/research/emer_tech/PLT/ Regards Charlie Charlie Blackham Sulis Consultants Ltd Tel: +44 (0)7946 624317 Web: www.sulisconsultants.com Registered in England and Wales, number 05466247 - This message is

RE: IEC 61010-1 og pollution degree

Basic answer: Yes, this could provide a solution. Not so basic answer: I agree with Brian. Based on experience it is best to involve the friendliest NRTL engineer to assist in this evaluation as the interpretation varies. Also, the C of A's for the coating usually specs a min and max thickness and