Look at the package and the AC input looks to be 100 to 240AC. The PSU input jack does not change with country so use your other cable.
http://media.bestofmicro.com/ext/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS9LL1ovNDk0NTMxL29yaWdpbmFsL0ZpZ3VyZS1PdXQtNC1ib3hfc2lkZTEuanBn/r_600x450.jpg
READ YOUR BOX TO CONFIRM THE AC VOLTAGE.
I recently bought a new PSU and i ended up getting it with a US power cord. I live in Sweden and it isn't usable for me. How would i do to solve this. I thought about using my old power cord but i don't know if that's a good idea(can it handle the voltage/amps?). The PSU is Fractal designs Integra M 750W.
Should i get a new power cord for it? In that case what sort of cable should i get?(voltage, amps etc)

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