Wet and Dry Arc Track Resistance Testing
Summary of Arc Track Resistance Testing
- Based on accepted industry test methods, wet and dry arc track resistance testing is a necessary assessment for all aircraft wires
- Lectromec’s laboratory is capable of performing both US and international test methods
- Testing can be customized to your particular project requirements
Test Methods
Lectromec offers both Wet and Dry Arc Track Resistance testing conducted in accordance with the test method 3006 of MIL-STD-2223 for the Wet Arc Track Resistance test and method 3007 of MIL-STD-2223 for the Dry Arc Track Resistance test. Additionally, Lectromec’s in-house testing services are performed according to the SAE standards 4.5.9-Method 509 (Wet Arc) and 4.3.1-Method 301 (Dry Arc). Lectromec can also perform tests which meet European standards EN3475 and EN6059 (for protective sleeving).
These tests provide an assessment of the ability of wire insulation to maintain its integrity while under electrical load. In service, electrical arcs may originate from a variety of factors including insulation deterioration, faulty installation, chafing, and trauma. Arcs may further be induced by water or other fluids, which create conductive paths on the wire’s surface. Temperature, humidity, and strain are all environmental factors, which may contribute to the degradation of wire insulation.
Test Performance
Lectromec can perform Wet and Dry Arc Resistance testing on wire bundles supplied by the customer or can prepare test bundles at the customer’s request. For those creating or developing wire harness protection schemes, the arc track testing services provided by Lectromec can prove an excellent means of independent verification of the quality/durability of their product.
During the test, the wire bundle is video recorded and photographs are taken of the test setup and of important events that occur during the test. The electric currents and arc voltages are recorded.
A more in-depth discussion on what the results of arc track resistance testing mean can be found in Lectrome’s What do the results of Arc Track Resistance Testing Mean? article.
Delivered Results
The customer will receive a digital video copy of the wet arc tracking experiments along with a copy of each of the still photographs taken during the day. A final report is provided covering the test conditions, calibrations, and results (explained with photos).
*Testing parameters can be customized per customer based upon specific requirements.