Warning: Prolonged exposure above 120°C anneals (softens) the aluminium alloy (typically 6063 or 6101), reducing its mechanical strength permanently, even if electrical conductivity remains.
A busbar operating at 120°C in a dusty environment is a fire risk. Dust acts as a thermal blanket, preventing cooling. indal handbook for aluminium busbar hot
rise, which is then derated based on site-specific ambient conditions. Short Circuit Suitability Mastering Heat Dynamics: The Essential INDAL Handbook for
Typically capped at 90°C to 105°C .