Hi Sean,
Double fault condition is not part of any design standard (like 60601) or routine test standard like IEC 62353. 1 fault is allowed, 2 is not. IEC 62353 tests in single fault condition only accept for differential method. Providing a double fault condition would mean you require to determine your own pass / fail limits as none of the medical standards provide this.
As for test currents,IEC 62353 is clear in that it states minimum of 200mA and that you are free to use 10A if you want to.
Hope this helps
john
