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An overhead transmission line conductor consists of hard drawn copper conductor of diameter 15 mm, having a dead weight of 1120 kg/km and spanning 150 metres. The supporting structures are at equal levels. The conductor has an ultimate tensile stress of 43.2 kg/mm and allowable tension is not to exceed 1/4th of ultimate strength. Find the vertical component of the sag under the following conditions: still air, (i) (ii) an ice coating of 12 mm. Assume density of ice as 0.925 g/cm.

An overhead transmission line conductor consists of hard drawn copper conductor of diameter 15 mm, having a dead weight of 1120 kg/km and spanning 150 metres. The supporting structures are at equal levels. The conductor has an ultimate tensile stress of 43.2 kg/mm and allowable tension is not to exceed 1/4th of ultimate strength. Find the vertical component of the sag under the following conditions: still air, (i) (ii) an ice coating of 12 mm. Assume density of ice as 0.925 g/cm.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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An overhead transmission line conductor consists of hard drawn copper conductor of diameter 15 mm, having a dead weight of 1120 kg/km and spanning 150 metres. The supporting structures are at equal levels. The conductor has an ultimate tensile stress of 43.2 kg/mm and allowable tension is not to exceed 1/4th of ultimate strength. Find the vertical component of the sag under the following conditions: still air, (i) (ii) an ice coating of 12 mm. Assume density of ice as 0.925 g/cm.
Transcribed Image Text:An overhead transmission line conductor consists of hard drawn copper conductor of diameter 15 mm, having a dead weight of 1120 kg/km and spanning 150 metres. The supporting structures are at equal levels. The conductor has an ultimate tensile stress of 43.2 kg/mm and allowable tension is not to exceed 1/4th of ultimate strength. Find the vertical component of the sag under the following conditions: still air, (i) (ii) an ice coating of 12 mm. Assume density of ice as 0.925 g/cm.
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