8/16/2019 Course on Stringing Material

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COURSE GOALS

The tasks that are covered included planning the job, pulling wire, sagging wire, and clipping-in, which isthe process of permanently attaching a conductor to a string of insulators. SUBJECTS AND OBJECTIVES

Job Planning

•

Eplain some of the basic considerations forplanning a transmission line installation job.

• !escribe or demonstrate how to determine the

length of wire needed for stringing, how tocalculate the average span length, and how tocalculate a ruling span.

• Eplain what guard structures are and when

they are used.

Job Preparation

• Eplain the basic preparation necessary for

stringing wire.• !escribe some of the basic e"uipment that

must be assembled in preparation for stringingwire.

• Eplain where the e"uipment necessary for

stringing wire is generally placed on the sectionof line being strung.

• Eplain why it is important to pull wire under

tension.

Pulling #onductor 

•

!escribe or demonstrate how a pilot line ispulled into position.

• !escribe or demonstrate how a bull line is

pulled into position.

• !escribe or demonstrate how a conductor is

pulled into position.

• Eplain the basic concerns associated with the

pulling process.

$agging, Part %

• Eplain the purpose of sagging wire and basic

considerations that must be taken into accountwhen sagging wire.

• Eplain the preparations that must be made in

order to sag wire.

• !escribe or demonstrate how a dynamometer

can be used for sagging wire.

$agging, Part &

8/16/2019 Course on Stringing Material

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• !escribe or demonstrate how a transit or a

sagging scope can be used for sagging wire.

• !escribe or demonstrate the stopwatch method

of sagging.

#lipping-'n

• !emonstrate and eplain the basic process of

clipping-in.

• 'dentify some additional items that may be

installed on transmission lines.

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