Transmission Line Project Report

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METHOD STATEMENT FOR CONDUCTOR STRINGING 1. SCOPE AND SPECIFIC WORK ACTIVITY The scope of works for the transmission line projects include design / engineering, manufacture, testing, supply, delivery, installation, erection, commissioning and handing over of OHL’s. This method statement is related to the specific work activity of conductor stringing. 2. TERMINOLOGY Stringing is the activity which will be commenced after tower erection. This activity involves installation of phase conductors in all the spans (between towers) in a section, installation of insulator strings and conductor / earth wire fittings, with the help of TSE machines and other stringing tools. 3. PURPOSE The purpose of this method statement is to establish a consistent routine to be…show more content…
The tension prescribed in the sag-tension chart shall not be exceeded by more than 5% at any time during sagging operation. The length of wire at the tension point shall be marked and compressed with the tension clamp by use of hydraulic compression machine and the same shall be attached to tension assembly string. Load from pull lift will then be released slowly. For compression of dead end clamps, a safe working platform will be required to place the hydraulic compression machine. For this, sagging bridge of suitable length (the length of tension insulator string on both sides and the cross arm edge will be taken into consideration) shall be hoisted and its center will be fixed to the cross arm slightly in the inner side of the tower body to avoid hindrance during insulator hoisting. The other ends of the sagging bridge shall be secured with the help of PP ropes properly to avoid swinging of the bridge and it shall be ensured that the bridge is in balanced position. After removal of all tools, the sag shall be checked again for any mismatch. If found, it shall be adjusted accordingly. 3. 4. 5. 6.
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