Introduces the regulations governing pole lines, mainly ESA Regulation 22/04 and CSA Guidelines. We survey the components of the overhead system, analyze the forces on poles and talk about grades of construction and load factors, followed by a detailed study of sags, tensions, clearances and the guying of poles. Finally, we cover the software options available for these calculations.

Who should take it: Anyone who is new to power distribution and power systems engineering, or who needs to refresh their understanding of power distribution fundamentals.

Job Positions include: Field Technicians; Distribution Line Workers; Designers; Engineers; Utility Managers; Engineering Managers; System Engineers, Operations Managers; Safety Managers; Communication Line Workers; and Electric Utility Contractors

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Sags and Tensions in an Overhead Distribution System Course (ST3)

$275.00

We discuss sag, how it relates to tension and the factors that influence both. We then introduce formulas to calculate sags and tensions. The module also covers the vertical clearances required between conductors and other circuits, structures and rail lines. Finally, we address the effect of conductor swing on horizontal clearances.

Course Code: ST3

Prerequisite: Introduction to Sags, Tensions, and Guying for Distribution Circuits Course (ST1), and Forces and Loads in Overhead Distribution Systems Course (ST2)

Runtime: 35 minutes

Guying of Overhead Distribution Circuits Course (ST4)

$275.00

After a graphic illustration of the need for proper guying, we review the various components of a guying system including the wire, insulators, anchors, and how soil classification impacts holding strength. We work through detailed guying calculations and look at the how software is used in these calculations.

Course Code: ST4

Prerequisite: Introduction to Sags, Tensions, and Guying for Distribution Circuits Course (ST1)Forces and Loads in Overhead Distribution Systems Course (ST2), and Sags and Tensions in an Overhead Distribution System Course (ST3)

Runtime: 35 minutes