Adhesion of Conductors

The Adhesion of Conductors test measures adhesion of each conductor layer of a cable to the cable’s dielectric core. Testing is performed using a tensile force tester which is used to pull the outer layer under evaluation from the inner layer under evaluation. Two examinations are made in this test: Removal of the outer conductive […] Read more

Accelerated Service

The accelerated service test evaluates the performance of a finished cable at electrical overload conditions. The test sample is placed into a heating chamber in a horizontal loop at 30°C for a period of 7 hours. During this time a defined test current and voltage are continuously applied and the temperature is continuously measured at […] Read more

Abrasion Resistance

The Abrasion Resistance test evaluates an insulation’s ability to endure rotational abrasion. The insulation sample is hung over a rotating cylindrical fixture equipped with two abrading elements separated 180°. The abrading elements are made from square tool bits which have been ground such that only one 90° edge of each abrades the test sample. The […] Read more

Dielectric Constant and Power Factor

The dielectric constant measures the material’s ability to store electrical energy, while the power factor assesses the dissipation of energy. Both parameters are essential for ensuring the reliable performance of the insulation in electrical applications. In general, a low dissipation factor (A/C loss) and an intermediate permittivity are desirable. By using a capacitance bridge to […] Read more

Visual Examination/ Inspection of Product

A visual examination is a common method used in combination with various test methods which allows for the determination of any nonconformities in a cable or wire. In general, a visual inspection can be used to determine any cracks, conductor exposure and wire degradation which are good indicators for determining the electrical integrity of a […] Read more

Torsion

The purpose of this test is to measure the torsion or twisting of a cable. On aircraft, cables can be exposed to straining conditions that cause the cable to loose its electrical integrity and damage to insulation. This test assesses the effects of this longtime exposure to straining conditions. Read more

Rapid Change of Temperature

The Rapid Change of Temperature test evaluates the ability to withstand a series of rapid temperature changes without diminishing its performance. The capacitance and attenuation of specimens are measured before and after the temperature exposure and the dielectric is measured for any expansion or shrinkage. Read more

Solder Contacts

The Solder Contacts test as defined in MIL-DTL-26482 follows the procedure of a Solderability test in accordance with MIL-STD-202 but with a few different requirements: Contacts should conform to specific dimensions provided in MIL-DTL-26482. Solder cups are designed in a manner to prevent damage during usage. Read more

Plating Continuity

Nearly all metals will oxidize and deteriorate over time. Plating copper conductors with a non-reactive metal to environmental factors is an excellent means of increasing the longevity of conductors. It is therefore essential that the plating method is such that when the source is drawn though a die, the plating material remains uniform and continuous. […] Read more

High Pressure/High Temperature Air Impingement (Burst Duct)

The burst duct test simulates conditions in which a high-temperature, high-pressure air line has ruptured near a wire harness. The test objective is to determine how long the wire/cable can be exposed to these harsh conditions without impacting the insulation reliability. Read more

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