2006-06-06 04:13:01 · 3 answers · asked by Parry 3 in Science & Mathematics ➔ Engineering
Attach the earth cable of the welding machine to the ship's hull, and attach the job you are welding also to the ship's hull. The current will flow through the steel structure of the hull.
Otherwise you can attach the earth cable of the welding machine directly to the job you are welding, if they are close together.
2006-06-06 20:36:30 · answer #1 · answered by kash2250 1 · 0⤊ 0⤋
That is a good question. If your welding current passes through a ball beaing on the way to ground, etc., you might "weld" the bearing. Also, many large ships use a floating ground system that you must understand. Good luck.
2006-06-06 15:47:54 · answer #2 · answered by Kes 7 · 0⤊ 0⤋
Water is a superconductor , try welding while standing in a puddle of water and I believe you will get the picture.
2006-06-06 12:08:46 · answer #3 · answered by thinkinoutloud 2 · 0⤊ 0⤋