this is the cord that will be on the exadata machine http://t.co/cHiFaJPLKE. note that there are two pdus each needing 3 phases hence 6 cords that you need to buy 6 corresponding sockets for. As always the best practise is that pdu a and pdu b should be hooked up to two independant power sources... Ther is another three phase option that only requires 2 power connections. You need to choose which connector is best for you depending on your datacentre setup.
Picture are in the orifginal exadata site plannig guide. I expect that the owner's mguide should also have them ... I'll check in a little while and let you know.