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IAEI Magazine | Author: Thomas A. Rorro, P.E., E.I.
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Thomas A. Rorro, P.E., E.I.

Thomas Rorro holds a master’s degree in electrical engineering from the University of Dayton. He is a licensed professional engineer and a licensed electrical inspector in New Jersey. He is currently serving as the secretary of New Jersey Chapter of IAEI and is a member of the Institute of Electrical and Electronic Engineers (IEEE). He is employed as an electrical inspector in New Jersey and as a member of the teaching staff at Bergen County Technical Schools instructing in "Motors, Generators and the NEC” as part of the journeyman electrical course.


Articles

Over Code: The Anatomy of a Code Change Proposal

The purpose of this article is to consider the requirements for bonding in 2011 National Electrical Code (NEC) 250.104, Bonding of Piping Systems and Exposed Structural Steel.1 Consider the simple hot and cold water lines on a 10-gallon ceiling-mounted hot water heater shown in figure 1. The heater serves a single sink in a small lunchroom directly below the heater.
JULY-AUGUST 2011

The Illusion of GFCI Protection

During the required annual pool inspections for commercial indoor pools, the inspector happened upon a ground-fault circuit-interrupter (GFCI) device, with a water cooler connected but without a cover plate. Using his tester it was discovered that the GFCI device protecting the receptacle failed to trip. Expanding the test to all GFCI devices around the pool, it was discovered that the failure rate was 100%. The devices were subsequently removed and sent to Underwriters Laboratory (UL) for evaluation. The end result of this process was disappointing, but it demonstrates a fundamental flaw in the overall system that exists to insure electrical safety.
JANUARY-FEBRUARY 2010