If conductors rated 0 to 2,000 volts are in ambient temperatures that differ from the ampacity tables, what must be done?

When conductors rated from 0 to 2,000 volts are placed in ambient temperatures that are different from those specified in the ampacity tables, it is essential to adjust their ampacity accordingly.

Ampacity tables are designed based on specific conditions, including ambient temperature. If the ambient temperature is higher or lower than what is indicated in the tables, the conductors may not perform as expected, which could lead to overheating or inadequate current-carrying capacity. Hence, to ensure safety and compliance with electrical standards, adjustments must be made to account for the temperature variations.

This process involves following established derating factors or adjustments provided in the National Electrical Code (NEC) or other relevant standards. By properly acknowledging the effect of temperature on the electrical performance of conductors, the risk of electrical failures or hazards can be significantly minimized.