Altitude Immersion

It is no surprise that aircraft components are expected to withstand rapid and extreme changes in altitude without loss of functionality. The altitude immersion test subjects a sample connector to such changes in altitude pressure and assesses its ability to maintain functionality. The altitude immersion test simulates aircraft conditions of rapid descent, cycling from conditions […] Read more

Adhesion of Nickel Coating

Nickel coating on copper conductors is an effective means of increasing a conductor’s resistance to corrosion and its operating temperature. These properties make it a commonly applied material in conductor coating. The adhesion of Nickel coating test evaluates the adherence of a nickel plating to an underlying copper/ copper alloy material. Two lengths of uninsulated […] Read more

Aging Stability

To test for aging stability, four specimens are cut from the wire sample. For cables whose jacket diameter is less than 0.5 inch (12.7 mm), the specimen is cut to 125 times the cable diameter, and cables that are 0.5 inch (12.7 mm) or larger are cut 95 times the cable diameter. For armored cables, […] Read more

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

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