Arc Flash Calculations and Insulation Resistance Testing - Self Study

Online

Authors: Randy Batchelor, Ryan Mayfield

Subjects: Solar: Megawatt Design

Student Rating

Rating: 9.2/10 (view ratings)
1,066 students have taken this course

Description

In this free lecture, Ryan Mayfield discusses two topics that are critical in the design and installation of large scale commercial installations: DC arc flash and insulation resistance testing.

The lecture includes discussions on the application of NFPA 70E in calculating DC arc faults and the associated hazard risk categories. Sample calculations are provided to illustrate real world examples and applications. The lecture also includes information on insulation resistance testing (IRT) during system commissioning and operations and maintenance activities. Participants will see an IRT procedure applied to help solidify the concepts presented in the lecture.

By the end of the lecture, participants will:

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Flexible Online Training for Industry Professionals

This is a self-study, self-paced online course. You can begin instantly upon enrollment and complete the course materials at your own pace.

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Certificates of Completion Available for Members Only

Certificates of completion are only provided to HeatSpring Membership subscribers. This course has not been approved by any credentialing organizations (NABCEP, AIA, USGBC etc) for Continuing Education Credits (CEUs). This course is for self education purposes only and completion does not indicate a level of professional expertise or credential.

Authors

Ryan Mayfield

Founder & CEO, Mayfield Renewables

Ryan Mayfield has been working in the renewable energy field since 1999 and is the President of Mayfield Renewables (formerly Renewable Energy Associates), a consulting firm providing design, support and educational services for electrical contractors, architectural and engineering firms, manufacturers and government agencies. Ryan served as Photovoltaic Systems...[more]

Randy Batchelor

Principal and Owner, Sol Rebel

Randy Batchelor is a licensed Electrical Engineer in California and is a NABCEP Certified PV Professional. He has experience with projects ranging from small off-grid power systems to utility-scale plants connected at medium Voltage. Randy has been working in the solar industry since 2006 and has been involved in the design and construction of hundreds of PV systems,...[more]

Course Outline

Video Lecture and Conference Call Recording

In this video lecture, Ryan Mayfield discusses two topics that are critical in the design and installation of large scale commercial installations: DC arc flash and insulation resistance testing. The lecture includes discussions on the application of NFPA 70E in calculating dc arc faults and the associated hazard risk categories. Sample calculations are provided to illustrate real world examples and applications. The lecture also includes information on insulation resistance testing (IRT) during system commissioning and operations and maintenance activities. Participants will see an IRT procedure applied to help solidify the concepts presented in the lecture. On the conference call recording, Ryan responds to participant questions and callers share their insights and perspectives.

  • Lecture - Arc Flash and Insulation Resistance Testing (Video - 44:38 minutes)
  • 1-hour conference call recording (.mp3) (Audio .mp3)
  • Resources: SP7.2 Arc Flash (Download .pdf)
  • Resources: SP5.2 QA Standardizing Documentation (Download .pdf)
  • Resources: Arc Flash whitepaper (Download .pdf)

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