Unsafe Conditions When Running Raceway — Part 3
Your work area may have the working clearances shown in the OSHA and NEC tables but still have inadequate working space. One reason is those table values are minimums. You’re expected to use good judgment when something indicates a need to exceed those clearances.
For example, you need to install a 75kVA transformer overhead. Obviously, you and your workmate Phil are not going to be able to lift it up there by hand. You need equipment (e.g., a lift) and space around that equipment for safe operation.
Working clearances can also be compromised by clutter. Many people seem to assume the clearances apply only to non-electrical factors, such as boxes stacked in your way by production people. Thus, if you have 4 ft of working space but you’ve left scrap (e.g., from cutting strut) all over it, how much safe working clearance do you actually have?
Your work in running raceway typically involves lifting, carrying, and ladder-climbing. Have you ensured your work area doesn’t present hazards of slipping and tripping when doing these things?
About the Author
Mark Lamendola
Mark is an expert in maintenance management, having racked up an impressive track record during his time working in the field. He also has extensive knowledge of, and practical expertise with, the National Electrical Code (NEC). Through his consulting business, he provides articles and training materials on electrical topics, specializing in making difficult subjects easy to understand and focusing on the practical aspects of electrical work.
Prior to starting his own business, Mark served as the Technical Editor on EC&M for six years, worked three years in nuclear maintenance, six years as a contract project engineer/project manager, three years as a systems engineer, and three years in plant maintenance management.
Mark earned an AAS degree from Rock Valley College, a BSEET from Columbia Pacific University, and an MBA from Lake Erie College. He’s also completed several related certifications over the years and even was formerly licensed as a Master Electrician. He is a Senior Member of the IEEE and past Chairman of the Kansas City Chapters of both the IEEE and the IEEE Computer Society. Mark also served as the program director for, a board member of, and webmaster of, the Midwest Chapter of the 7x24 Exchange. He has also held memberships with the following organizations: NETA, NFPA, International Association of Webmasters, and Institute of Certified Professional Managers.