We must upsize.
The rating of an electric cable is a critical parameter that determines its safe and efficient operation. The cable rating, also known as the ampacity, is the maximum current that a cable can carry without exceeding its temperature limit. Overloading a cable can lead to overheating, insulation damage, and even a fire. Therefore, it is essential to calculate the cable rating accurately to ensure the reliability and safety of electrical power systems. cable rating calculation
When multiple cables are installed in close proximity—such as in a cable tray or conduit—they act as mutual heat sources. This "grouping effect" reduces each cable's ability to cool, necessitating derating factors (correction factors) to prevent collective overheating. We must upsize