Conductive Deposit Test สำหรับน้ำมันหล่อลื่นที่ใช้ในรถไฟฟ้า
SAE J3200: An SAE International information report that discusses new performance requirements and test methods for lubricants used in electric vehicle (EV) drivetrains, such as e-transmissions and e-axles. It recommends tests like the Conductive Deposit Test (CDT) to evaluate the risk of lubricants reacting with copper motor components to form conductive copper-sulfide deposits, which can cause short circuits and equipment failure.
This oil passes corrosion specification requirement ASTM D130 rating of 1B after 3 hours at 150 ºC, but catastrophically failed on the field.
Tannas TanEV CDT® sets the new standard for evaluating EV drivetrain fluid performance, measuring conductive deposit formation on motor windings and electrical components under high-temperature, high-stress conditions. Designed specifically for electric vehicle fluids, it ensures the reliability, safety, and efficiency of next-generation EV systems.
⚙️ Standards & Applications:
✔️ Conforms to ASTM D8544 & SAE J3200 for EV fluid deposit testing
✔️ Assesses both liquid and vapor-phase conductive deposit formation on copper windings and electronic components
Test Configuration for CDT
Conductive Deposit formation
Key Features & Benefits:
⭐ Operates at 150 °C for up to 500 hours with dual 5V DC loops per PCB
⭐ Tests both liquid and vapor deposition using ~20 mL of sample
⭐ Modular 4-port docking station with independent control and wireless iOS data capture
⭐ Compact benchtop footprint ideal for R&D environments
⭐ Engineered for accuracy, repeatability, and long-term durability in EV fluid testing
How It Works:
1.) The circuit board traces are supplied with a voltage and the resistance, in Ohms, is tracked over time.
2.) When conductive deposits or dendrites are forming the resistance value changes drastically.
3.) At this point conductive deposits or dendrites have formed and the test may be terminated or continued until catastrophic failure.
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