Accelerated Aging

The test determines if the insulation of a wire has been converted to a thermoset material by polymer crosslinking. The test is performed for a short time period at a temperature much greater than the temperature rating of the insulation. To pass this test, the wire must withstand the bend and wet dielectric tests after […] Read more

Altitude-Low Temperature

Wired, mated, and assembled connectors are tested inside a pressurized chamber with the temperature reduced to simulate an altitude of 100,000 feet. The chamber’s internal temperature is reduced to -65 °C and is maintained until the connector temperature stabilizes. An insulation resistance test is performed at the reduced temperature, with the pass/fail criteria identified in […] Read more

Accelerating Aging

Conductor Strand Blocking

Upon completion of a fabricated wire, it is crucial to ensure that each of the wire’s components are suitable for use. Conductor Strand Blocking provides a method to determine if conductor strands of 7-19 count will adhere to each other in the finished wire. This test was developed as a process control test for silver […] Read more

Voltage Drop

DC resistance measurements and voltage drop calculations are conducted on insulated wires to determine the voltage drop across crimp joints and on re-terminated insulated wires. This evaluation is an effective means of determining the electrical efficacy of a crimp. Testing is performed on insulated, wires with crimp terminals attached. A current is applied to the […] Read more

Determination of Temperature Coefficients

A conductor’s resistance varies with temperature and is dependent on the conductor material’s properties. In this test, a wire is submerged in a oil bath with a temperature accuracy of 0.2C. The bath is progressively heated to the target temperature and the change is conductor resistance is captured at multiple temperature during the test. Read more

DelTest

The Lectromec DelTest™ is a patented technology that has been used by commercial and military organizations to support their maintenance efforts and maximize the service life of their investments. The DelTest™ identifies breaches in wires that often go undiagnosed until an event happens. These events, common to active aircraft, can lead to spurious signals, noise, […] Read more

Wet Arc Propagation Resistance (European Method)

The wet arc-resistance test for wire insulation provides an assessment of the ability of an insulation to prevent damage in an electrical arc environment. In service, electrical arcs may originate from a variety of factors including insulation deterioration, faulty installation, and chafing. It has been documented that results of an arc-propagation test may vary slightly […] Read more

Conductor Stranding

The lay of conductor stands in a wire conductor has a significant impact on a wire’s performance. In particular, wires with stranded conductors tend to have greater flexibility than those with single core conductors. The conductor stranding test it is a quality check to evaluate the conductor stranding. The individual strands of the conductor are […] Read more

Electrolytic Erosion

Whether through contamination during maintenance actions, ingress from degraded seals, or other degradation, the fluid ingress into a connector can cause degradation and impact reliability. To assess this, the electrolytic erosion test measures the propensity of connectors to erode when contaminants are present and the connector is in use. The test consists of introducing a […] Read more

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