Year 2009
November 10: Updates to main index page.
August 21: Lot's of new circuits and schematics - See and build!
August: Tomi Engdahl's Blog! - Many of new blog postings. Read them.
April 16: Tomi Engdahl's new Blog! - Follow the thoughts and get the latest circuit tricks!
April 2: Usenet post list by Tomi Engdahl. Lot of usefull stuff collected by Tomi during last years.
March 18: Simple LED dimmer circuits web page added.
March 12: New main index launched! Now it's easier to browse ePanorama.net. Old index available here
November 10: Updates to main index page.
August 21: Lot's of new circuits and schematics - See and build!
August: Tomi Engdahl's Blog! - Many of new blog postings. Read them.
April 16: Tomi Engdahl's new Blog! - Follow the thoughts and get the latest circuit tricks!
April 2: Usenet post list by Tomi Engdahl. Lot of usefull stuff collected by Tomi during last years.
March 18: Simple LED dimmer circuits web page added.
March 12: New main index launched! Now it's easier to browse ePanorama.net. Old index available here
ePanorama.net - - Cable Resistance Calculator
Recommendations for maximum current for cables:
| Copper cable diameter | Power distribution | Equipment cables |
| 0.5 mm2 | - | 3A |
| 0.75 mm2 | 7.6A | 6A |
| 1.0 mm2 | 10.4A | 10A |
| 1.5 mm2 | 13.5A | 16A |
| 2.5 mm2 | 18.3A | |
| 4 mm2 | 25A | |
| 6 mm2 | 32A |
Data on different AWG cable sizes:
AWG Feet/Ohm Ohms/100ft Ampacity* mm^2 Meters/Ohm Ohms/100M 10 490.2 .204 30 2.588 149.5 .669 12 308.7 .324 20 2.053 94.1 1.06 14 193.8 .516 15 1.628 59.1 1.69 16 122.3 .818 10 1.291 37.3 2.68 18 76.8 1.30 5 1.024 23.4 4.27 20 48.1 2.08 3.3 0.812 14.7 6.82 22 30.3 3.30 2.1 0.644 9.24 10.8 24 19.1 5.24 1.3 0.511 5.82 17.2 26 12.0 8.32 0.8 0.405 3.66 27.3 28 7.55 13.2 0.5 0.321 2.30 43.4