The Indal Handbook emphasizes the specific engineering adjustments required when switching from copper to aluminium.

The handbook provides extensive charts for Current Rating Tables. It does not rely on a single "rule of thumb." Instead, it provides ratings based on:

It introduces derating factors for grouping multiple bars in parallel. For example, a busbar system with two strips in parallel per phase has a higher rating than a single strip, but the current-carrying capacity per square mm decreases due to mutual heating.

The Indal Handbook begins not with calculations, but with a fundamental material science question: Why replace copper with aluminium?

Indal Handbook For Aluminium Busbar May 2026

The Indal Handbook emphasizes the specific engineering adjustments required when switching from copper to aluminium.

The handbook provides extensive charts for Current Rating Tables. It does not rely on a single "rule of thumb." Instead, it provides ratings based on: Indal Handbook For Aluminium Busbar

It introduces derating factors for grouping multiple bars in parallel. For example, a busbar system with two strips in parallel per phase has a higher rating than a single strip, but the current-carrying capacity per square mm decreases due to mutual heating. It introduces derating factors for grouping multiple bars

The Indal Handbook begins not with calculations, but with a fundamental material science question: Why replace copper with aluminium? it provides ratings based on: