Impact Resistance

Impact resistance testing evaluates a cable’s ability to withstand mechanical impacts, ensuring it can maintain its structural and electrical integrity in the presence of potential physical shocks. The test measures the impact force necessary to cause contact between the impact tool and the conductor specimen. The evaluation can be conducted with a blunt or a […] Read more

Insulation Percent Overlap

This evaluation ensures that the insulation layers are applied with the required amount of overlap to provide adequate protection and electrical insulation. The test uses a microscope with a magnification of 15 diameters minimum to measure the length of the spiral edge of the wrapped insulation in degrees of freedom. Read more

Magnetic Permeability

Magnetic permeability testing measures a connector’s ability to become magnetized when subjected to a magnetic field. This property is essential in applications where electromagnetic interference or compatibility is a concern. The test involves the use of a permeability meter to determine whether the magnetic permeability of the test material is below a specified value. Read more

Inclined Plane Tracking and Erosion

This test method evaluates an insulating solid’s resistance to surface tracking and erosion caused by contaminants in the presence of electrical stress. In the test, the conducting liquid contaminant is continuously supplied at a specified rate to the surface of the test specimen. This essentially produces continuous electrical surface discharge, which may cause specimen failure […] Read more

Dielectric Breakdown

Dielectric breakdown testing is performed to assess the ability of insulation material to tolerate high-voltage stress without electrical breakdown. The test measures the maximum voltage an insulator can withstand before puncture of the insulation occurs, making the insulation unable to inhibit current flow through the failure region. Parameters that can be adjusted: Method of voltage […] Read more

Terminal Strength

This test is performed to assess the strength of the connection between the wire and its termination to ensure the reliability and integrity of the electrical connection. The design of the terminals and method of their attachment must withstand the applicable mechanical stresses to which they will be subjected to during installation, disassembly, and regular […] Read more

Smoke Density

This standardized test method used to determine the specific optical density of smoke emitted by solid materials and assemblies during exposure to a controlled radiant heat source. The test maybe conducted in both flaming and non-flaming modes to comprehensively assess the smoke generation characteristics of materials. In the flaming mode, the material is subjected to […] Read more

Shield Strand Coating

The shield plating of cables is performed in a similar manner as is performed for wire conductors. Typically, this involves exposing the shielding to one or more chemicals to see if there is a reaction of the underlying copper conductor. For the NEMA27500 cables, this method is applicable to tin, silver, and nickel. Read more

Plating Thickness

The conductor plating thickness may be determined through several methods called out in the EN3475 test method. These include: Optical Chemical Scanning Electron Microscope (SEM) Atom Absorption Spectrometry (AAS) When contacting Lectromec about this test, please identify if there is a preferred method for your application. Read more

Cable and Leadwire Noise

Piezoelectricity refers to the phenomenon where certain materials generate an electric charge when subjected to mechanical stress or pressure. Conducting a piezoelectricity test on a data cable involves evaluating whether the cable exhibits any piezoelectric properties under specific conditions. General Test Procedure Assess the voltage differential on the cable prior to mechanical stress. Apply a […] Read more

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