Eva,
Forgive me if this question has already been answered elsewhere, but what is the application that requires 15V at 120A?
That appliance has to have a 0.1 ohm total internal resistence, including connecting cables and connectors.
Heck, I short my ohmmeter probes together, and get a 0.2 ohm reading. It's not easy to guarantee sound connections under 0.1 ohm.
The slightest layer of oxide between contacts could cause heating, causing more oxide build-up, increased resistence, more heating, etc, and contact thermal runaway.
Any contact point that measures 0.01 ohm will dissipate 180W...
Gaaaa!! (Run!, Run!)
I'm sure you've taken all precautions, otherwise your project would not have come this far, but this trancends electronics now. This is power plant engineering.
Forgive me if this question has already been answered elsewhere, but what is the application that requires 15V at 120A?
That appliance has to have a 0.1 ohm total internal resistence, including connecting cables and connectors.
Heck, I short my ohmmeter probes together, and get a 0.2 ohm reading. It's not easy to guarantee sound connections under 0.1 ohm.
The slightest layer of oxide between contacts could cause heating, causing more oxide build-up, increased resistence, more heating, etc, and contact thermal runaway.
Any contact point that measures 0.01 ohm will dissipate 180W...
Gaaaa!! (Run!, Run!)
I'm sure you've taken all precautions, otherwise your project would not have come this far, but this trancends electronics now. This is power plant engineering.