Indal Handbook For Aluminium Busbar Hot Access

With a density roughly one-third of copper, aluminium eases installation, handling, and reduces structural load on support structures.

Thoroughly wire-brush the contact surface under a layer of petroleum jelly or joint compound to scratch away the oxide layer without letting oxygen reseal the metal. indal handbook for aluminium busbar hot

Belleville washer (coned-disc spring) sets must be used on all bolts. These springs maintain pressure on the joint even when the aluminium expands and contracts, preventing loosening. With a density roughly one-third of copper, aluminium

The INDAL Handbook does not forbid aluminium busbars from running hot, but it imposes strict conditions: These springs maintain pressure on the joint even

Utilizing or channels for very high ampacities.

This allows you to determine the actual temperature of the bar if it is overloaded, or how much you must derate it to keep it cool.

Pre-job planning (mandatory)