| Abbreviation | Definition |
|---|---|
| RAA | IEEE Robotics and Automation Award |
| RADAR | IEEE International Radar Conference |
| RADECS | European Conference on Radiation and its Effects on Devices and Systems |
| RA-M | IEEE Robotics & Automation Magazine |
| RAMS | Reliability And Maintainability Symposium |
| RAPCON | Conference of Electrical Engineering Problems in the Rubber and Plastics Industries |
| RAV | Robotic Air Vehicle |
| RBJA | IEEE Reynold B. Johnson Information Storage Systems Award |
| RCCB | Residual Current Circuit Breaker |
| RCEMBS | Regional Conference of IEEE Engineering in Medicine and Biology Society |
| RCL | Reduced Corona Loss |
| RCTT | Electrical fault due to loose or corroded connections |
| RD | Rage Day |
| RDSMC | Robust Dynamic Sliding Mode Control System |
| RE2020 | Requirements Engineering (for a Digital World, IEEE Conference) |
| REAL | Real-Time Systems Symposium |
| REDW | IEEE Radiation Effects Data Workshop |
| REG5 | IEEE Region 5 Conference |
| REI | Requirement for Electrical Installation |
| RELDIS | Symposium on Reliability in Distributed Software and Database Systems |