Where would insulation with high-temperature rating be needed and why?

Question

Quizplus · Accepted Answer

The Answer is Boiler rooms, attics, and outside installations in the hot sun are examples of where the high-temperature rating might be needed. The big advantage of high-temperature insulations is they permit the use of the ampacity found in the 90 degrees C column of NEC Table 310.16 for applying adjustment and correction (derating)factors. In addition, some equipment may require conductor insulation rated higher than required for ampacity issues to safely withstand the temperature internal to the equipment.

Where Would Insulation with High-Temperature Rating Be Needed and Why