What are the advantages of the inward flanged side rail profile in a cable ladder system?

The inward 90° flanged side rail profile creates a closed structural channel that significantly increases beam strength and torsional rigidity compared to open-rail designs. This configuration helps retain cables within the ladder path during thermal expansion and short-circuit events, while the smooth inward edges reduce abrasion risk to cable jackets. It is especially suited for heavy-duty industrial and substation applications where structural integrity under dynamic loads is critical, and it simplifies the attachment of covers and accessories without additional clamping hardware.