David W. Powell, Principal Consultant, has experience working on the following types of fire artifacts and forensic matters:
Lighting systems including fluorescent fixtures, magnetic and electronic ballasts, neon lighting, neon transformers, high intensity discharge fixtures and ballasts, metal halide lamp failures, illuminated signs, incandescent lighting fixtures and lamps.
Electric motors, motorized equipment, pumps, compressors, fan assemblies, and refrigeration equipment.
Lighting and motor thermal protectors and thermal cutoffs.
Electric motor, fluorescent ballast and high intensity discharge ballast capacitors.
Arcing events and its resulting damage including the identification of arcing, melting and alloying of electrical conductors.
Equipment and systems suspected of causing electric shock or electrocution.
MEMBERSHIP IN THESE PROFESSIONAL ASSOCIATIONS:
American Society for Testing and Materials American Society for Metals-ASM International Evidence Photographers International Council Illuminating Engineering Society of North America Institute of Electrical and Electronics Engineers International Association of Electrical Inspectors Microbeam Analysis Society Microscopy Society of America National Fire Protection Association National Association of Fire Investigators International Association of Arson Investigators New York State Fire Investigators