Allen L. Clapp, P.E., P.L.S is President of Clapp Research Associates, P.C. Consulting Engineers. The firm serves over 500 utilities and industries. Allen has been involved in the design and evaluation of electric supply and communication facilities for over 45 years. Over 25,000 people have attended Allen’s seminars on the National Electrical Safety Code and OSHA. Mr. Clapp has investigated over 800 accidents. He has testified before courts and commissions for over thirty-five years.
Mr. Clapp is a past Chair (1984-1993) of the National Electrical Safety Code Committee and is presently a member of the following subcommittees: Interpretations (Past Chair); Strengths and Loadings (Past Secretary); Clearances (Past Acting Secretary); and Scope, Application, Definitions and Coordination (Chairman and Past Secretary). He has served continuously on the NESC technical subcommittees since 1971.
Allen Clapp is editor of the NESC Handbook published by the IEEE. He also edits and publishes the DANESC UPDATE™ Newsletter, and is a contributor to McGraw-Hill’s Standard Handbook for Electrical Engineers. Mr. Clapp is an authorized OSHA construction regulations instructor.
John B. Dagenhart, P.E.
(919) 782-7745 ext. 13
jdag@clappresearch.com
John B. Dagenhart, P.E. is the Vice President of Clapp Research Associates, P.C., and is lead engineer for many of CRA's electrical projects. He has investigated over 500 accidents. He is a former Distribution Engineer with Duke Power. John is chair of NESC Subcommittee 2 on Grounding Methods, a Professional Society Member of IEEE Power Engineering Society Working Group on Voltages at Publicly and Privately Accessible Location, and a former Alternate Member of ANSI Z535 Committee on Safety Signs. He serves on the IEEE/NESC Lecture Team and regularly presents DANESC™ Seminars for CRA clients, and is an authorized OSHA construction regulations instructor.
Mr. Dagenhart is a contributor to McGraw-Hill's Standard Handbook for Electrical Engineers, an associate editor of the DANESC UPDATE™ Newsletter; provided research for the NESC Handbook; co-authored and edited Power Systems Disturbances Manual for Duke Power Company; contributed to the upcoming IEEE Emerald Book Powering and Grounding Sensitive Electronic Equipment; and authored or co-authored articles on electrical power quality issues and both the National Electrical Safety Code (NESC) and the National Electrical Code (NEC).
Jeff Giffen, P.E.
Jeff Giffen, P.E. is the Product Manager for Structural Restoration at Osmose Utilities Services and is responsible for their O-Calc™ Pole Loading Software, which is used by over 100 companies across the United States including such notable companies as Wisconsin Public Service, Verizon, SBC and Con Edison.
Mr. Giffen is a registered Professional Engineer with 11 years of experience in structural design and engineering management. He holds degrees in Civil Engineering from Clemson University and Georgia Tech. His experience includes the structural design of multi-story precast concrete commercial and industrial structures and steel, concrete and wood utility structures for water and power utilities. Mr. Giffen has directed the development and implementation of design automation and other engineering software applications. He is a member of the American Society of Civil Engineers (ASCE) and the Structural Engineering Institute of ASCE.
