Keystone Cable Market Share Analysis for February 2026

What is the purpose of mechanical testing? Power cables, typically installed underground, in ducts, or on overhead structures, are often subject to mechanical stresses such as tension, compression, bending, and twisting. Hence it is important that cables are put through stringent tests to ensure they can withstand the mechanical stresses that they will be subjected to during installation, operation, and maintenance. One of the categories we test for in mechanical testing, is the Tensile Elongation test, which affirm that cables manufactured are equipped with mechanical capabilities including flexibility and load-bearing capabilities. By subjecting the cable’s insulation and sheath to tensile elongation test, we can compare it against predetermined minimum elongation and tensile strength based on standards to identify potential weaknesses in the cable’s design or materials to optimise performance. This is fundamental to providing our customers with reliable cables. As cables are meant to operate over a lifespan of 20 to 30 years under normal use conditions, how can we ensure that cables continue to retain mechanical integrity even after long term use? The Tensile Elongation Test We subject our cables to Tensile Elongation to determine whether they can retain tensile strength and elongation after being exposed to a tension load. This assessment determines the cable’s ability to maintain mechanical integrity at ambient temperatures, and is one of the key mechanical tests our cables need to withstand. In this test, a tubular or dumb-bell control sample is prepared and placed in an electromechanical or universal testing machine with 2 clamps and pulled from each end until its breaking point. The test measures the amount of force (N) applied and elongation when the sample breaks (∆L).  Tensile strength – Amount of force (N):  Strength needed to pull the material of the cable until it breaks. The maximum strength it can tolerate Elongation(∆L):  The length that the materia