Sulfur in fuel tends to accumulate in the catalytic converter under moderate operating conditions and interfere with its ability to achieve high conversion levels, particularly for NOx emissions. This is a reversible effect and operating the vehicle at high speeds and loads on low sulfur fuel will elevate the temperature of the catalyst bed and promote desorption of the stored sulfur, which then largely restores the performance of the catalyst.
Silver plated copper is used primarily for RF applications. At RF the electrons move freely on the outer of a cable and if silver is used, the conduction is better than plain copper.
People find it easier to solder and of course it looks nice.
People find it easier to solder and of course it looks nice.
https://www.anixter.com/content/dam...0-Anixter-WW-Conductor-Coatings-W&C-EN-US.pdf
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20100009723.pdf
In military wiring it is used because of temp range
"Corrosion of Silver-Plated Copper Conductors" B.D. Dunn, A. de Rooij & D.S. Collins
We can safely safe both for temperature range, a lot of wiring is not carrying rf signals so here its the temp range that is important... and RF signals will be carried using co-axial cables, where the silver skin reduces losses.
I wouldn't say electrons move freely in any wire, not at a average velocity of maybe 0.25mm/s. What is happening is that at the high frequencies because of skin effect the signal is effectively moving through a solid silver conductor... It would be interesting to put the figures in a calculator or simulation software to compare the differences. If I get chance later I will try and set up my Cadstar SIV for two wires on silver and one copper to see what the differences are. Its something I have never thought of doing so I'm wondering what the results will be. I will have to start with digital signals as I haven't used the high speed analogue (RF) side of the software yet, so will have to study the user manual.
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20100009723.pdf
In military wiring it is used because of temp range
"Corrosion of Silver-Plated Copper Conductors" B.D. Dunn, A. de Rooij & D.S. Collins
We can safely safe both for temperature range, a lot of wiring is not carrying rf signals so here its the temp range that is important... and RF signals will be carried using co-axial cables, where the silver skin reduces losses.
I wouldn't say electrons move freely in any wire, not at a average velocity of maybe 0.25mm/s. What is happening is that at the high frequencies because of skin effect the signal is effectively moving through a solid silver conductor... It would be interesting to put the figures in a calculator or simulation software to compare the differences. If I get chance later I will try and set up my Cadstar SIV for two wires on silver and one copper to see what the differences are. Its something I have never thought of doing so I'm wondering what the results will be. I will have to start with digital signals as I haven't used the high speed analogue (RF) side of the software yet, so will have to study the user manual.
For teflon a heat stripper works very well. Back in the day I rolled my own litz wire out of 100's of feet of #26 wire wrap wire. 4 strands wound tight with a drill counter wound in groups of three.
I would hope they do, let's keep the EM propagation and electron motion separate, Ed might be watching.
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