DieselPower
Elite Member
- Joined
- Sep 30, 2006
- Messages
- 2,761
- Location
- Fairfield, PA
- Tractor
- JD 3020, JD 4230, JD 7410, JD 2440, MF 750, NH LS170
AlanB said:OK folks I will bite in here.
If you want to protect an electrical component, you unplug that component. I am not buying into that if you disconnect the battery, your computer will be safe. Your battery will be safe, all other components are still "in the loop, for stray voltages.
Welding wipes out electircal components by sending electricity through places that was not intended, or in amounts not intended. Good clean grounds, close to your work, with straight metal between the two points, will do more to prevent this then anything else in my opinion.
Also, if you are Tigging with HF then there are all sorts of interesting things that have the potential to happen.
I would have to strongly disagree. I have spoken with alot of professional welders and auto/truck engineers over the years and all have told me all you need to do is disconnect the battery.
Think about it, if you disconnect the negative terminal you have opened the "loop" in the electrical system. This is basic electronics 101 stuff here. There is no possible way on earth that electricity can pass "through" the component if it's not in a closed loop. I have seen lot's of heavy truck ECM's and brake ECM's fried over the years because someone "did not" disconnect the battery. I have never seen or for that matter ever heard of any electrical component being damaged as long as the battery was disconnected. Open the circuit and it's physically impossible for the electrons to flow through a component if they have nowhere to go.