Heat Shrink Tubing Flammability Tests

August 31, 2022 Laura Wishart

As is the case with many components in electrical wiring, one of the most important properties of heat shrink tubing is its resistance to fire. Take a look at several methods used to determine and categorize the flame-resistant properties of heat shrink insulation tubing. Read more

EWIS Yule Log

December 21, 2020 Administrator

With 2020 drawing to a close, we wanted to finish our busiest year in our lab with one more experiment. We hope that you all enjoy Lectromec’s version of the traditional yule log. Read more

Meeting Requirements for EWIS Certification

October 14, 2016 Michael Traskos

There are more than 17 parts to the FAA’s Electrical Wiring Interconnection System (EWIS) regulations enumerated in the 25.1700 series. To show compliance with each of these regulations require a thorough subject area understanding. More so, as the EWIS evolves in design, it becomes clear that achieving EWIS certification requires a lot of data. If […] Read more

Electrical Fault and Fire Prevention and Protection

June 3, 2016 Michael Traskos

The prevention of electrical fires is a common goal for most aircraft systems. Advisory Circular (AC) 25-16, “Electrical fault and Fire Prevention and Protection”, released in 1991, can be considered one of the precursors to the Electrical Wiring Interconnection System (EWIS) regulations. Although the document is now 25 years old as of last month, AC 25-16 provides a wide variety of recommended practices that are commonplace in the EWIS design and installation. Here we review some of the key points addressed in AC 25-16 and considerations with modern EWIS design with respect to electrical fault and fire prevention and protection. Read more