Forensic Engineering Investigation Of Electrical Power Line Contacts

Abstract

Overhead Electrical Power Lines Are Installed On Almost All Major Roadways And Many Other Public And Private Rights-Of-Way. They Are Not Insulated From Contact (With Few Exceptions). When Installed And Maintained In Accordance With The National Electrical Safety Code (Nesc), They Are Safe As Long As They Are Not Approached (Within Certain Limits) Or Touched By Unskilled Hands. However, Contacts Do Occur And The Result Is Always Serious Injury Or Death. These Incidents Usually Result In Litigation. The Determination Of Why And How The Contact Was Made And Its Preventability Are The Purview Of The Forensic Electrical Engineer. This Paper Will Discuss The Common Methods And Investigative Techniques Employed By Forensic Engineers, Including: 1) Analysis Of Electrical Systems And Evaluation Of Applicable Codes, Standards And Standard Industry Practices. 2) Evaluation Of Actions And Behavior Of The Injured Party(S). 3) Electrical Phenomena And Engineering Analysis. 4) Documentary Evidence And Testing. 5) Presentation Of Findings And Conclusions To Attorneys And To The Court.