View Latest Blog Entries
Close
Categories
Testing & Assessment Certification Aging Wires & Systems Management Standard & Regulation Research Protection & Prevention Conference & Report Arcing Maintenance & Sustainment Miscellaneous
Popular Tags
Visual Inspection MIL-HDBK MIL-HDBK-525 FAR AS50881 FAR 25.1707 Wire System Electromagnetic Interference (EMI) FAR 25.1709 High Voltage Degradation Arcing Damage
All Tags in Alphabetical Order
Accelerated Aging Aging Systems Aircraft Power System Aircraft Service Life Extension Program (SLEP) Arc Fault (AF) Arc Fault Circuit Breaker (AFCB) Arc Track Resistance Arcing Damage AS22759/87 AS4373 AS4373 Method 704 AS50881 AS5692 AS6019 AS85485 AS85485 Wire Standard ASTM F2799 Automated Wire Testing System (AWTS) Bent Pin Analysis Best of Lectromec Best Practice Cable cable testing Carbon Nanotube (CNT) Certification Chafing Chemical Testing Circuit Breaker Circuit Protection Coaxial cable comparative analysis Compliance Component Selection Conductor Connector connectors contacts Corona Corrosion Corrosion Preventing Compound (CPC) Cracking D-sub data cables degradat Degradation Delamination Derating Distributed Power System DO-160 Electrical Aircraft Electrical Component Electrical Testing Electromagnetic Interference (EMI) Electromagnetic Vulnerability (EMV) EMF EN3197 EN3475 EN6059 Energy Storage Environmental Environmental Cycling ethernet EWIS Component EWIS Design EWIS Failure EWIS Thermal Management EZAP FAA AC 25.27 FAA AC 25.981-1C Failure Database Failure Modes and Effects Analysis (FMEA) FAR FAR 25.1703 FAR 25.1707 FAR 25.1709 fault tree Fixturing Flammability fleet reliability Flex Testing Forced Hydrolysis fuel system fuel tank ignition functional testing Fundamental Articles Future Tech Green Taxiing Harness Design Hazard Analysis High Voltage Hot Stamping Humidity Variation Insulation IPC-D-620 ISO 17025 Certified Lab Laser Marking life limited parts life projection Maintenance Maintenance costs Mandrel Mechanical Testing MECSIP MIL-C-38999 MIL-C-85485 MIL-DTL-17 MIL-DTL-3885G MIL-DTL-38999 MIL-E-25499 MIL-HDBK MIL-HDBK-1646 MIL-HDBK-454 MIL-HDBK-516 MIL-HDBK-522 MIL-HDBK-525 MIL-HDBK-683 MIL-STD-1560 MIL-STD-1798 MIL-T-7928 MIL-W-22759/87 MIL-W-5088 Military 5088 modeling MS3320 NASA NEMA27500 No Fault Found off gassing Outgassing Overheating of Wire Harness Parallel Arcing part selection Performance Physical Testing Polyimide-PTFE Power over Ethernet Power systems Probability of Failure Product Quality Radiation Red Plague Corrosion Reduction of Hazardous Substances (RoHS) relays Reliability Research Rewiring Project Risk Assessment SAE Secondary Harness Protection Separation Requirements Series Arcing Service Life Extension Severe Wind and Moisture-Prone (SWAMP) Severity of Failure Shielding Solid State Circuit Breaker Space Certified Wires supportability Sustainment Temperature Rating Temperature Variation Test methods Test Pricing Testing Thermal Circuit Breaker Thermal Endurance Thermal Index Thermal Shock Thermal Testing Tin plated conductors TWA800 UAVs verification Visual Inspection white paper whitelisting Wire Ampacity Wire Certification Wire Comparison Wire System wire testing Wire Verification

Blog

Connector Failure Rates – Part #1

Coming up with failure rates of electrical components is always a difficult task. Historically, when failure modes and effects analyses were created for aircraft systems, the level of detail of EWIS component failures were severely lacking. Some organizations would create a single failure number for an entire circuit, regardless of the wires or connections made […] Read more

What Are You Missing from Your Risk Assessment?

Creating maintenance action plans for vehicle sustainment is a heavily detailed process involving the collaboration between multiple groups. If any group has a less detailed (or flawed) analysis, the potential impact could be felt for years/decades to come. A structured process for assessment is outlined in the mechanical subsystems integrity program (MECSIP) outlined in military […] Read more

Top 5 Articles of 2017

At the end of each year, we look back at the most popular Lectromec articles. This year, Lectromec generated a wide range of content ranging from cable testing to corrosion protection. This range of topics was covered in more than published 31 articles, 2 whitepapers, and presentations on the results of multiple internal research efforts. […] Read more

Happy Holidays from Lectromec

Lectromec’s lab did one last set of tests before the 2017 holidays. We bring you a polyimide Christmas tree powered by 270VDC. Read more

AS50881 and EN3197 Harmonization

Working from a common knowledge base is critical for part interoperability. Take a standard screw; to install it requires a screwdriver (Phillips or Flathead), lining the screw up with the hole, and rotating clockwise to drive the screw. The screw works the same in Europe as it does in America, though the measurements might be […] Read more

Designing for Relays

Power transfer through aircraft or any electrical system requires components that have the capability to turn on and off. These switches, contactors, transistors, and electrical relays that route power through the aircraft are life limited parts. Whether from a design or sustainment view, understanding how these components degrade over time and what to look for […] Read more

Frequency of Wire System Incidents

In July 2017, Lectromec published a white paper on electrical wiring system failures on commercial aircraft. This is a brief video of the finding and what can be done to improve EWIS reliability in commercial aircraft. Read more

Getting the Most Value from Wire System Degradation Assessments

Task four of military handbook MIL-HDBK-525 (also incorporated into the mechanical subsystems integrity program standard MIL-STD-1798) outlines a set of considerations and procedures for the assessment of an aircraft electrical system specifically for the service life extension program (SLEP). The important factor is to ensure that resources are not wasted on this effort and that […] Read more

Streamline Production with Whitelisting Cable Suppliers

Since each wire/cable manufacturer has its own specialization and processes, significant performance variations can be found despite using the exact same product specification. Tests performed by Lectromec on the same wire specification from multiple manufacturers have found a 2:1 performance variation on key electrical and mechanical properties. Clearly, not all parts made to the same […] Read more

Getting the Most from Visual Inspections

Good data is anything that can be turned into actionable information; this is a critical element in nearly every project. For those that regularly perform EWIS inspections, unless the data is gathered in such a way to improve the aircraft reliability, address technical errors, and/or be used as part of trend analysis, the effort is […] Read more