Some Typical Duties & Responsibilities Include: Knowledge of distribution systems with voltages ranging from 120V to 13.8kV, transformers and switchgear. Knowledge of electrical National Codes and Standards such as NFPA 70/70E and I Electrical system protection, coordination curves, load studies, and arc flash analysis. Hands-on electrical design validation and Verification experience. Low and medium voltage experience developing system repair designs, system calibration, and installation plans.