I'm confused over ampacity adjustments.
Table 310-16 is based on a continuous load without exceeding the insulation temp. rating -article 100
so why is the 80% corretion factor for a continuous load needed? Is this lower ampacity not built into table 310-16?
Is it necessary to lower the normal ampacity in 310-16 by 20% and then size the wire and overcurrent protection to 125% of that value. -Erik
