Electrical Safety

Robert M. Rioux & Suprita Jharimune, Pennsylvania State University, University Park, PA

Among the many hazards present in the laboratory, electrical hazards are one of the most common we must be cognizant of since most of the laboratory equipment we use requires electricity for operation. Improper handling or operation of electrical devices might lead to electric shock with the potential risk of injury or even death. Electric sparks can lead to fire or explosion (since many flammable chemicals may be stored nearby to electrified instrumentation). Therefore, knowledge regarding electrical safety and what to do in case of emergency is essential for the laboratory personnel. Precautions can be employed when working in the laboratory to avoid electric shock and electrical fire or explosion.

1. Preparation for Electrical Hazards

Be familiar with the location of the laboratory electric control panel and know how to shut down the power in case of emergency. Locate the circuit breaker box in the laboratory and identify the circuit in which the electrified equipment is plugged into. All circuit breakers should be labeled appropriately, identifying the laboratory area or specific equipment it is associated with.
Be familiar with the type and location(s) of fire extinguishers in case of an el

Electrical devices are everywhere in the laboratory. It is essential to follow electrical safety principles to prevent electrical shock, electrical fire, or explosion. Be prepared about what steps should be taken in the case of emergency. Identify and mark the location of fire extinguishers in the laboratory. Be sure to use an extinguisher meant for a Class C fire. Always remember to get to personal safety first and then shut down the power to any malfunctioning electrical devices if it can be done in a safe manner.

Electrical Safety in the Lab, 2009, Lab Manager. at http://www.labmanager.com/lab-health-and-safety/2009/11/electrical-safety-in-the-lab?fw1pk=2#.V7DGYT4rJcw
Electrical Safety in the Laboratory, Environmental Health & Center, the University of Iowa. at https://ehs.research.uiowa.edu/electrical-safety-laboratory
Portable Fire Extinguishers: Fire Extinguisher Use at https://www.osha.gov/SLTC/etools/evacuation/portable_use.html

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