VA - 2020 NEC Changes: Backup Power, Grounding & Bonding, Special Equipment (PGM)

This is a three-part course.  Part one covers the changes in Articles 700, 702, 706, 725, 770 and Chapter 8 of the National Electrical Code®. Article 700 contains the requirements for emergency systems. Article 701 covers optional standby systems. Article 706 covers energy storage systems. Article 725 covers Class 1, 2, and 3 remote-control, signaling, and power-limited circuits. Chapter 8 covers communications systems. Notable changes include clarification of the requirements for transfer equipment, reduced requirements for unit equipment used for emergency lighting, several new requirements for energy storage systems, and the consolidation of several rules in Chapter 8.

Part two covers the changes in Articles 242 and 250 of the National Electrical Code®. The new article 242 contains the requirements for overvoltage, or surge, protection. Article 250 covers the grounding and bonding of systems and equipment. Notable changes include the creation of Article 242 and deletion of Article 280 and 285, a new section addressing the bonding of equipment on the line side of the service, specific requirements for aluminum conductors, limiting the role of rebar in the grounding electrode system, fixing an error about the sizing of bonding jumpers, reducing the identification requirements for equipment ground conductors, and providing relief for the sizing of equipment grounding conductors in certain applications

Part three covers the changes in Articles 600 through 695 of the National Electrical Code®, other than Articles 690 and 691 (PV systems). Notable changes include increasing the requirement for selective coordination for elevators; multiple changes addressing electric vehicles used as a power source; further restrictions on underfloor wiring in ITE rooms; listing, inspection, and GFCI protection requirements for pools and bodies of water, and reduced protection requirements for fire pump wiring.

After successfully completing Part 1 of this course, you will be able to:

·       Recall the rules for sizing and emergency generator.

·       Identify the type of transfer switches that are not allowed for emergency systems.

·       Recall the fire rating for a listed fire resistive cable system used in an emergency system.

·       List the requirements of a DC micro grid if it's used as a power source.

·       List the new requirements for transfer equipment.

·       Identify how and whom is to install and maintain energy storage systems.

·       Define cable bundle in Article 725.

·       Recall the requirements for determining the ampacity of class two and class three cables and Recognize the global changes that were made in chapter eight for communication circuits.

After successfully completing Part 2 of this course, you will be able to:

• Explain why Articles 280 and 285 were combined into Article 242
• Describe the evolution of Article 250 since 2008
• Identify some of the system grounding configurations that are allowed in the NEC
• Identify the increased allowances and requirements for aluminum conductors
• Explain the clarifications that were made for grounding separately derived systems
• Explain the use of rebar as a connection point
• Describe the use of metal enclosures as equipment grounding conductors

After successfully completing Part 3 of this course, you will be able to:

• Define host sign, retrofit kit general use, retrofit kit science specific, and subassembly
• Recall the instances in which overcurrent devices for elevators must be selectively coordinated
• Describe the listing, inspection, and GFCI protection requirements for pools and bodies of water
• Recall GFPE settings given various instances Identify the cords, conductors, and cables that are allowed in under floor spaces of IT equipment rooms
• Discuss the reduced protection requirements for fire pump wiring