Electric Power Generation, Transmission, and Distribution

maintained and structure loads are acceptable. This process can be done by hand using a sag template, plan-profile drawing, and ...

PULL SITE Guy-WHENREQUIRED TRAVELER GROUNDS BOTH SIDES OF ENERGIZED CROSSING MID-SPANSPLICE SITE GRID-WHENREQUIRED GUY-WHENREQUI ...

Provision for conductor splicing during stringing must be made at tension site or midspan sites to avoid pulling splices through ...

Travelers used in tension stringing must be free rolling and capable of withstanding high running or static loads without damage ...

for sagging conductors. Factors that must be considered when sagging conductors are creep elongation during stringing and prestr ...

conductor should be sagged to the initial stringing sags listed in the sag tables. However, if the conductor tension is excessiv ...

prestress tension. After prestressing, the tension on the conductor is reduced to stringing or design tension limits. At this re ...

the sag of the conductor, can be determined. This stopwatch method (Overend and Smith) has come into wide use even for long span ...

14.6.3.2 Sagging by Transit Methods IEEE Guide Std. 524–1993 lists three methods of sagging conductor with a transit: ‘‘Calculat ...

14.6.3.3 Sagging Accuracy Sagging a conductor during construction of a new line or in the reconductoring of a old line involves ...

conductor is to be sagged in a series of suspension spans where span lengths vary widely or more commonly, where the terrain is ...

14.7 Defining Terms Block—A device designed with one or more single sheaves, a wood or metal shell, and an attachment hook or sh ...

pulling line. The pulling line is payed out from the unit, pulled through the travelers in the sag section and attached to the c ...

the reel mechanically, hydraulically, or through a combination of both. The shaft, in turn, retards the reel. Some of these devi ...

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15 Corona and Noise Giao N. Trinh Retired from Hydro-Que ́bec Institute of Research 15.1 Corona Modes .......................... ...

have been developed for the onset of corona discharge, the most familiar being the streamer criterion. They are all related to t ...

pattern in which the streamer is initiated, is developed, and is suppressed; a short dead time follows before the cycle is repea ...

15.1.1.2 Negative Pulseless Glow The negative pulseless glow mode is characterized by a pulseless discharge current. As indicate ...

These stable discharge conditions may be explained by the greater efficiency of the applied field in removing the ion space char ...