Oregon 2017 NEC Changes:Overcurrent Protection, Grounding & Bonding, and Enclosure Boxes
This interactive online course is presented in two modules:
Lesson 1: 2017 NEC Changes: Overcurrent Protection and Grounding & Bonding (RV-11107)
Article 240 and 250 of the National Electrical Code (NEC) contain the requirements for overcurrent protection and for grounding and bonding. Several changes were made in Articles 240 and 250. Notable changes include the addition of arc energy reduction requirements for fuses, more options for the grounding of separately derived systems, changes to the allowed and prohibited types of grounding electrodes, recognizing new options for intersystem bonding, clarifying the rules for parallel conductors, and others.
Lesson 2: 2017 NEC Changes: Enclosures and Boxes (RV-11108)Chapter 3 of the 2017 National Electrical Code (NEC) contains requirements for wiring methods, enclosures and boxes. Several changes were made in Articles 312 and 314. In this interactive online course we discuss notable changes that include the addition of a new column in Table 312.6(A), new box fill requirements for barriers in boxes, clarifying the rules for cables entering enclosures, and new rules for separable attachment fittings
At the end of the day, you're going to be able to:
- Describe the new rules for arc energy reduction
- Explain the changes to the grounding of separately derived systems in 250.30.
- Describe the changes to the requirements for intersystem bonding terminations in 250.94.
- Describe the changes to sizing the equipment grounding conductor for conductors installed in parallel in 250.122(F)
- Explain the new column for wire bending space in Table 312.6A and in B
- Describe the changes for power monitoring equipment installed inside of an enclosure
- Describe the requirements for barriers that are installed in boxes in 314.16
- Know all about these new separable attachment fittings in 314.27E
This course can be used for CE or applies to the State Licenses and Professional Organizations listed below.
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He has been involved in writing and editing over 25 books on the National Electrical Code, and has taught the subject in multiple states and for multiple colleges and universities. He is self-employed as an NEC® consultant and inspector.
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