Badgers, all due respect, there may be another problem with your installation.
our isolation panel LIMs alarm at 2ma with a second alarm at 5ma +/- 50µa
Whose LIM's can do this?
Read 517.160 (6)(b) "the line monitor shall not alarm for a fault hazzard of less than 3.7 ma"
2ma is an old "flameable anesthetizing location area" alarm level and I think a Canadian standard.
Now as far as $7,000 being a question, this will be paid for in one proceedure
I agree the "normal source" would be for emergency only, but, if we were to use two critical sources how would you distinguish between them?
Now, if we are using an isolated system for it's very nature, to provide non grounded power to the patient, then for some reason connect this patient to a grounded system, even if GFCI protected, what would be the reason for spending $7,000 for the first