- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
:thumbsup:They don't use MI cable in residential. Unlikely a plumber would chop it in a hospital or some place like that where it is used.
The typical use for MI is where code requires fire survival for some specified period of time that cannot easily be achieved by putting a fireproof chase around other Chapter 3 methods.
Since the insulation is a mineral oxide powder it does not degrade with heat at the anticipated temperatures. So the wiring will survive any temperature that does not melt the copper itself.