When we carry out projects on adjacent electrical installations and define the feeders, sub-feeders and control cables, we can make technical-economic evaluations to compare an armored cable against a conduit pipe.
Armored cables have a metal jacket that makes it possible to install them directly without using rigid or flexible pipes for mechanical protection. Let’s look at an example to understand the benefits of using armored cables vs. conduit pipes.
If we consider the installation of a three-phase 50 A load at a distance of 150 m with a voltage of 440 volts, with a moderate number of curves, and also the average freight and labor costs and the fact that the products considered are UL-certified, we will get the following comparative chart that reflects the cost/benefit of using armored cables:
- Alternative A: Traditional installation with conduit pipes
- Alternative B: Installation with TECK or DURALOX armored cable
Note: All the accessories that are used to install a conduit pipe were considered, such as cables, fixing system, labor, freight, paint, etc.
Therefore, we see that the percentage savings are 21.60% and 37.89% respectively, obtaining important savings in the execution of projects where we can use armored cables. The basic standards for armored cables are CSA and UL.