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

Insulation Tensile Strength and Elongation

This test provides tensile property data on extruded electrical wire insulation removed from the wire/cable specimen. Identifying the insulation’s tensile properties are useful to determine the ability to withstand mechanical stresses the wire/cable may experience in service conditions. Using a power driven tensile test machine, the insulation is stretched until breakage. At the end of […] Read more

Cross-talk

Cross-talk occurs when a signal traveling through one cable interferes with another generally in a twisted pair cable. The cross-talk test quantifies the interference due to cross talk among twisted conductors of a cable. Read more

Durability

Electrical connectors are expected to connect and disconnect regularly without degradation for routine activities such as maintenance, replacement, and troubleshooting. The durability test evaluates the ability of an electrical connector to withstand mating and de-mating for a large number of repetitions. The number of mating/ de-mating cycles and the acceptable results parameters are determined by […] Read more

Dimensional Stability

A 5-foot minimum specimen is cut from a sample unit, and the ends of the specimen are cut squarely and carefully deburred. The specimens are placed in a heat chamber and conditioned for 6 hours minimum at the applicable test temperature. Heated air is circulated to maintain a uniform test temperature, and after the conditioning […] Read more

Dimensions

Also referred to as Dimensional Inspection or Dimensional Measurement. The purpose of this test is to measure the dimensions such as gauge and diameter of a cable. The dimensions of a cable determine the amount of electric current or wire rating a wire can carry. Read more

Deformation Resistance (Installation with Plastic Cable Ties)

This purpose of this test is to evaluate the performance of a cable after installation of plastic cable ties. On aircraft, improper installation of cable ties can cause deterioration to the cable over time. Pairs of cables bundled together with plastic cable ties (at a specified force) undergo a heat exposure. The impedance of each […] Read more

Crush Resistance

The crush resistance test method measures the capability of wire insulation to withstand an applied load, simulating the damage that may occur when insulated wire is crushed between two flat surfaces. During the test, a tensile strength test machine is used with additional components, such as mandrels, plates, and a support anvil oriented perpendicular to […] Read more

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