## Induction Voltage Near Power Lines

Power lines induce voltages on nearby structures
such as de-energized transmission lines, buildings, railroads, pipelines
and communication lines. This induced voltage can create hazards of
electric shocks, arcing and even fire or explosions.

The assessment of the hazards due to
induction is probably one of the misunderstood phenomenon in power
systems. It is often overlooked leading to severe consequences.
Hazardous working environments can be present if workers are not fully
aware of the electromagnetic field effect on induction voltage.

With the full knowledge of the
electromagnetic induction, utilities can acquire acceptable right-of-way
for their power lines, industries and commercial buildings can allocate
their business at sufficient distances from the power lines, housing
projects can determine the height of their buildings, and utilities can
decide on the separation of their pipelines and railroads from power
lines.

The course will provide the technical
information needed to assess the hazards of sharing the right-of-way
with utility lines as well as worksite hazards for power line work. The
course will also deal with mitigation techniques to reduce the hazards
of induction voltage.

This course is intended to provide the
knowledge needed to compute the induced voltages due to the
electromagnetic fields of energized lines. The computation is simplified
without loss in accuracy so it can be implemented by using handheld
calculators.

Who should
attend?

Electric Power Engineers

Non-power Engineers who are working in the power
field

Field engineers

Construction engineers and developers

Managers of utility companies

Engineers in railroads and pipelines
industries

Topics Covers

Electromagnetic Phenomenon

Electric Field

Magnetic field

Definition of induction voltage

Safety codes

Electric field

Charge

Equipotential Surface

Ground effect

Induced voltage due to nearby energized conductor

Step by step calculations

Test cases and examples

Mitigation techniques

Magnetic field

Flux and flux linkage

Ground effect

Induced voltage due to nearby energized conductor

Step by step Calculations

Test cases and examples

Mitigation techniques

Aggregated induced voltage due to electromagnetic
field

Step by step Calculations

Electric field under power lines and within the
right-of-way

Step by step Calculations

Electric field profile

Allowable limits of electric field strength

Standards and Guidelines

Minimum Vertical Clearance, NESC

Measurements of electric field
strength

Test cases and examples

mitigation techniques

Pipelines, Railroads and Communication Cables

Induced voltage due to electric field coupling

Induced voltage due to magnetic field coupling

Induced voltage due to electrical conductance

Insulated versus bare metal

Over versus under ground metals

Test cases and examples

Mitigation techniques