Stray Voltage
Electric utilities place high priorities on the design of effective
grounding system to achieve the level of electric safety demanded by the
society. The National Electrical Safety Code (NESC) and the National
Electric Code (NEC) have specific regulations to achieve the safety of
the public from electric shocks.
Stray voltage is one of the most annoying problems associated with
customers’ services. It is hard to predict and detect and the solution
can be illusive. Stray voltage can cause substantial losses in farms and
can lead to unsafe conditions for the public. This course covers the
foundations of grounding and stray voltage analysis. It also identifies
sources of stray voltages and methods to alleviate the
problems. Applicable standards and codes are discussed and engineering
analyses of the problems are given.
Several real-world cases are presented, studied and analyzed in this
course. In addition, some of the tools used to analyze the hazards and
to test the proposed solutions of the stray voltage problems are
presented.
Who should attend
Utility engineers
Supervisors and workers of distribution line installations and
maintenance
Developers and builders of customers’ electric service
Builders of swimming poles, outdoor water activities, outdoor metal
structures and hospitals
Personnel in manufacturing companies of electric safety equipment
Attorneys involved in electric safety issues
Topics covered
Fundamentals
Electricity and Biology
Grounds and grounding
Hazards of Electricity
Stray Voltage in Swimming Pools
Stray Voltage in Outdoor Showers
Stray Voltage in Farms
Stray Voltage in Fences and Gates
Stray Voltage in Hospitals
Contact Voltage, street lights, manhole, railway, etc.
Simulation tools
General discussions