Codes & Standards

istock / fotofrog
Codes & Standards
Posted Mar 2020

Dangerous Waters

Mark Earley
In my first few years at NFPA, I met an electrical inspector who served as an expert witness in legal cases involving shock and electrocutions involving swimming pools. He told...
Shutterstock / The Toidi
Codes & Standards
Posted Mar 2020

Change for the Better

Mark C. Ode
Every National Electrical Code cycle, from the advent of ground-fault circuit-interrupter (GFCI) protection in Section 680-4 in the 1968 NEC , has featured changes in the installation and application of...
NEC code
Codes & Standards
Posted Mar 2020

Origin Story

Michael Johnston
The NEC Correlating Committee is responsible for the NEC and multiple other electrical codes and standards published by the National Fire Protection Association (NFPA). The committee has a critical obligation...

Recent Stories

Jan 2020

We’re All in This Together

Mark Earley
The standards development system for the National Electrical Code is a public, consensus-driven process. The NEC receives thousands of public inputs and comments every cycle. But how can a book be consistent if it has...
Shutterstock/ Lightspring
Jan 2020

Turn and Face the Change

Mark C. Ode
The 2020 edition of the National Electrical Code, issued Aug. 5, 2019, became effective Aug. 25, 2019, and superseded all 54 previous editions beginning in 1897. There were a total of 3,730 public inputs with 1,400 first...
iStock/ Urupong
Dec 2019

Know the Current

Mark C. Ode
Last month’s article covered the technical requirements of power over ethernet (PoE), limited-power (LP) cable, regular Class 2 and 3 cables and the temperature limitations of Class 2 and Class 3 cables and installations. But...
iStock/ Adshooter
Dec 2019

Finding a Solution

Richard P. Bingham
When most power quality problems result in equipment malfunction, there is no shortage of the usual suspects, especially with the proliferation of so many smart devices. While the equipment manufacturer might blame it on...
Shutterstock/ Matt Howard
Web Exclusive
Nov 2019

Grounding and Bonding Requirements in the NEC

Derek Vigstol
The purpose statement of the NEC, section 90.1(A) states, “The purpose of this Code is the practical safeguarding of persons and property from hazards arising from the use of electricity.” In other words, it all comes back to...
Electrical systems planning.
Nov 2019

Prevailing Requirements

Mark Earley
The National Electrical Code is a complete collection of rules for electrical installation requirements suitable for adoption into law. It contains no guidelines or recommendations. It does not contain “best practices,” nor...
Shutterstock/Nagel Photography
Nov 2019

Cable Power

Mark C. Ode
With the addition of new Section 725.144 and the accompanying Table 725.144 in the 2017 NEC covering transmission of power and data to a powered device comes the requirement for a special marking of the cable used for these...
iStock/ CSA-Printstock
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