In this test, we stretch.
This it the tensile strength and elongation test.
At Interpower’s manufacturing facility in Lamoni, Iowa, they test every wire to the point of failure.
A load cell measures force and how far the wire elongates.
According to spec, the tensile strength has to be 1,500 PSI. Interpower hits 2,400 PSI.
Elongation has to be >100%. Interpower hits 210 percent.
Next, the experts age the wires and see how they perform. To age them, they bake them -- up to 150°C for 7 days simulates 5 years of age.
The wires are tested again.
To pass, tensile strength has to hit 85% of the previous mark.
Elongation has to hit 65%.
All to make sure that the products remain safe and reliable, even after 5 years of abuse.
The Testing Series covers how one American manufacturer is making sure that we stay safe and our products remain powered. It features the Top 6 tests every cord should go through before it finds a mate.
The series includes exclusive footage from Interpower’s state-of-the-art facilities in Iowa, as the tests were being performed.