Hassan’s eyes went wide. He grabbed a calculator.
"Do it properly," Vance said, sliding the IEC code back to him. "Move to a larger cross-section. Maybe split the circuits into two separate trays to improve the grouping factor. Or use spaced trays. IEC doesn't just give you rules to make your life hard, Hassan. It gives you rules to stop copper from turning into a heater."
Understanding Cable Derating Factors: IEC 60364-5-52 & IEC 60287
Hassan’s eyes went wide. He grabbed a calculator.
"Do it properly," Vance said, sliding the IEC code back to him. "Move to a larger cross-section. Maybe split the circuits into two separate trays to improve the grouping factor. Or use spaced trays. IEC doesn't just give you rules to make your life hard, Hassan. It gives you rules to stop copper from turning into a heater."
Understanding Cable Derating Factors: IEC 60364-5-52 & IEC 60287