By Andrew P. McCoy and Fred Sargent
Published On December 15, 2022
Inside a bright red cover—in keeping with this gift-giving season—is a beautiful present from the National Fire Protection Association for every electrical contractor engaged in service and maintenance business.
It’s the thoroughly revamped NFPA publication devoted to electrical equipment maintenance, better known as 70B.
Up to now, NFPA 70B has been all about recommended practices, that is, nonmandatory suggestions. Starting in 2023, however, 70B will become a standard. Its provisions will become mandatory. As a standard, NFPA 70B will drive new service and maintenance opportunities!
Many have been guilty of saying “codes and standards” without giving much thought to their distinction. In NFPA parlance, there are important differences.
To understand this best, we visited Kiley Taylor, an expert on electrical systems maintenance who worked on recasting NFPA 70B.
Taylor began his career as an IBEW electrician. Today, he is an electrical engineer with the National Renewable Energy Laboratory (NREL), overseeing and managing the electrical maintenance program at NREL’s expansive campuses in Golden, Colo. We started with a leading question for him about the history of NFPA 70B.
Although it’s been less well-known than NFPA 70E, the NFPA 70B, Standard for Electrical Safety in the Workplace, is not a newborn addition to the family.
That’s correct. The first edition of 70B came out in 1975. It’s been revised 15 times since then. The most recent edition—as a recommended practice—was published in 2019.
Take us through the differences in levels of these publications.
The NFPA recognizes four distinct writing styles, starting with a guide. A guide has advisory or informative language on a particular subject. A recommended practice is the next level up. It will have a mix of explanatory language and suggested recommendations using verbs like “should” or “should not.” The next level is a standard. Its dictates are 100% mandatory, using verbs like “shall” or “shall not.” The main body of a standard contains only strictly prescriptive language, but it may have an annex in its back pages containing common language explanations of certain issues. The top-most level is a code. Its language is even more prescriptive than a standard.