ALS is a type of cable constructed with insulated conductors enclosed in a continuous, closely fitting aluminum tube that serves as both a shield and protective armor.
ALS cables are specifically designed for environments where enhanced protection against physical damage and electromagnetic interference (EMI) is required. The term “ALS” refers to “Aluminum Sheath,” indicating the continuous aluminum tubing that encases the cable’s insulated conductors. This aluminum sheath not only provides mechanical protection but also functions as an effective shield against electrical noise, making ALS cables well-suited for sensitive low-voltage systems in complex commercial and industrial settings.
The aluminum tubing is seamless or longitudinally welded and provides a rigid structure that resists crushing, bending, and environmental hazards. In some constructions, ALS cables may also include additional layers such as a jacket over the sheath or filler materials within the cable core to enhance fire resistance or flexibility, depending on the application. The robust structure of ALS cables contributes to their long service life in high-traffic or high-risk areas.
Because ALS combines shielding and mechanical protection into one layer, it can help streamline the selection of cabling for applications where both are required, without compromising signal integrity or safety.