Expert Witness

Marne and Associates, Inc

David J. Marne, P.E., is a registered professional electrical engineer. Mr. Marne is the author of McGraw-Hill's National Electrical Safety Code (NESC) Handbook and is a nationally recognized speaker on the NESC. He serves on NESC Subcommittee 4 Overhead Lines Clearances, Subcommittee 7 Underground Lines, and the Interpretations Subcommittee.

Please note:

I am no longer taking on new Expert Witness cases.  I am focusing on writing McGraw Hill's National Electrical Safety Code (NESC) 2023 Handbook and presenting my NESC classes and OSHA power and communication worker classes.

I am referring all of my new cases to my associate, John A. Palmer, Ph.D., P.E., C.F.E.I. of Palmer Engineering & Forensics, LLC. Visit Dr. Palmer's website at

Areas of Expertise

  • Above-Ground Power Lines
  • National Electric Safety Code (NESC) Accident Investigation
  • Occupational Health & Safety
  • Electrical
  • OSHA
  • Electrical Engineering
  • Power Lines
  • Electrical Power
  • Power Utilities
  • Electrical Shock
  • Underground Power Lines
  • Electricity
  • Utilities
  • Electrocution
  • Utility Company Standard Practices
  • GO95
  • GO128
  • GO165