David Sterling, PE
Senior Power Systems Engineer • Industrial Code Consultant
Biography & Professional Background
David Sterling is a Senior Power Systems Engineer and technical consultant at WireSizerPro. With 18+ years of experience leading medium- and low-voltage industrial distribution projects, David oversees WireSizerPro’s 3-phase calculation engines, transformer secondary protection guides, and master NEC ampacity reference tables[cite: 1, 2].
Holding a Master of Science in Electrical Engineering from Georgia Tech, David has engineered power infrastructure for manufacturing plants, data centers, and multi-tenant commercial facilities. His technical work focuses on fault-current calculations, conductor short-circuit withstand ratings (ICEA P-32-382), and thermal modeling in densely filled raceways and cable trays.
Primary Focus Areas
- 208V, 240V, and 480V 3-Phase Conductor Sizing
- NEC Table 310.16 Ampacity Deratings & Adjustments
- Motor Branch Circuit Conductors & OCPD (NEC 430)
- Conduit Fill Limits (NEC Chapter 9, Table 1 & 4)
Engineering Standards
- NFPA 70: National Electrical Code (NEC)
- IEEE 141: Red Book – Industrial Power Systems
- IEEE 242: Buff Book – Industrial Protection Coordination
- NEMA WC 70 / ICEA S-95-658: Power Cable Standards