On Wednesday, November 29, 2017 at 12:22:46 AM UTC-8, GS wrote:
whit3rd wrote:
On Tuesday, November 28, 2017 at 12:48:01 AM UTC-8, GS wrote:

Commercial isolation transformers get rid of common mode noise, and since
one leg of output is tied to ground, forms a new local neutral.

That's only true of SOME isolation transformers; the ones used for
bench safety when working on live equipment do NOT make the
neutral-ground connection.

All commercial isolation transformers must inform to code. All Tripplite
isolators are grounded.

Commercial isolation transformers are leakage-tested, but the ground-neutral
connection is not always present.

Tripplite also makes smart power strips that won't work if plugged into
an isolation transformer that doesn't strap ground-to-neutral. So, they
work with isolated (hospitals, sometimes) power only if you add a Tripplite isolator.

details are here, in the reviews section:
https://www.tripplite.com/for-patient-care-vicinity-ul-60601-1-medical-grade-ps-4-15a-hospital-grade-outlets-safety-covers-15-ft-cord~PS415HGULTRA/