42 Testing, analysis, and evaluation of electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus to assure compliance with electrical industry standards; consulting services in the fields of energy measurement to improve energy efficiency of electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus; technical writing in the field of electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus; scientific study and research, namely, engineering studies in the field of electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus; consulting services in the fields of forensic science, namely, electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus; data-acquisition and collection for calibration and coordinate-measurement purposes in the field of electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus; inspection of electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus for quality control purposes; scientific research of electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus; technical support services, namely, troubleshooting in the nature of diagnosing computer hardware and software in the field of electrical power systems comprised of apparatus for electrical generation, distribution, supply, control, and rotating electrical apparatus