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The 2023 National Electric Code Has Arrived!

The 2023 National Electrical Code (NEC) is here! This article covers NEC history, the update process, and a chapter breakdown! Stay tuned in the months ahead for more updates.

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2020 NEC, Section 800.44 | Installing Overhead Communications Wiring

In the past, Chapter 8 of the NEC has not gotten the attention it deserves. Article 800, General Requirements for Communications Systems, sets the ground rules for the installation of specific types of systems, such as broadband communications systems.

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2020 NEC, Section 712.2 DC | Microgrids and System Directories

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Short-Circuit Current-Rating (SCCR) VS. Available Fault Current: Understanding the Maze and What’s New for 2020

Section 408.6: A Brand-New Addition to the 2020 NEC
NEC section 408.6 states: Switchboards, Switchgear, and Panelboards shall have a short-circuit current rating (SCCR) not less than the available fault current.  In other than one- and two-family dwelling units, the available fault current and the date the calculation was performed shall be field marked on the enclosure at the point of supply. The marking shall comply with 110.21(B)(3).

Making NEC 408.6 Simple
This new Code Section simply means that electrical panels including main-breaker and main-lug type panels and switchboards & switchgear equipment must be rated (in amps) to withstand the high levels of current that will flow should a short-to-ground or other fault occur at the equipment. In ALL locations other than dwelling units, that anticipated fault current must be marked on the equipment enclosure near where the supply conductors enter in, along with the date that the calculation producing that number was performed. The new Code Section also says the markings on the equipment must comply with 110.21(B)(3). Section 110.21(B)(3) tells us that markings must be sufficiently durable to withstand the environment.

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The 2023 National Electric Code Has Arrived!

Most Recent

From Here to There – Insights on Alarm Monitoring Communications

Robots, the Cloud, and Perimeter Hardening – Reflections on GSX 2022

2020 NEC, Section 800.44 | Installing Overhead Communications Wiring

2020 NEC, Section 712.2 DC | Microgrids and System Directories

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Short-Circuit Current-Rating (SCCR) VS. Available Fault Current: Understanding the Maze and What’s New for 2020

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2020 NEC, Section 800.44 | Installing Overhead Communications Wiring

2020 NEC, Section 712.2 DC | Microgrids and System Directories