Preventable Motor Dangers
Does your facility contain any of these unnecessary dangers in its motor installations?
Danger #1 Shock hazard. If there is a difference of potential between the motor case and anything else around it, then a shock hazard exists. How do you eliminate this difference of potential? A common but incorrect answer is to ground the motor case. See the National Electrical Code Art. 100 definition of “ground”. The correct answer is to bond the motor case, base, disconnect, and other metallic objects to each other and/or to the equipment grounding (bonding) conductor.
Danger #2 Slipping hazard. When lubricating the motor, use a catch pan or similar. Wiping up grease after it hits the floor can still leave an oil film.
Danger #3 Tripping hazard. Is it necessary to step over the raceway containing the motor supply conductors just to service the motor? If so, then install new raceway around the obstructed area so there is a clear path for personnel and equipment.
Danger #4 Visual hazard. Ensure there is sufficient light for servicing the motor, even if that means installing a fixture just for that purpose.
About the Author
Mark LamendolaMark 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.