procurement of emergency restoration system ( ers ) for maintain power supply through transmission line under exigency situation procurement of emergency restoration system ( ers ) for maintain power supply through transmission line under exigency situation , complete ers system including articulated base ( gimbal ) , mast sections, box sections, guy plates / swivels, bolts & nuts, lock washers, foundation / base plate, guy & guy hardwares, anchor assemblies for normal soil, weak soil, marshy soil, rocky soil along with anchor installer kit, all types of composite insulator strings of long rod, line post, for suspension and tension towers, pilot insulators, along with all hardware fittings, guy strain insulators with hardware fittings, conductor and earthwire / opgw hardware and fittings like suspension and tension clamps, vibration dampers etc. with all necessary erection and stringing equipments, tools and tackles, adequate numbers of storage containers etc. all complete as per requirement and above specifications. each set shall comprise of the following type of ers tower structures:- , a ) ers suspension / running angle towers ( 0° - 20° ) -2 nos. , b ) ers tension / dead end towers ( upto 60° ) -4 nos. , c ) ers tension / dead end towers ( upto 90° ) -1 no. , software , i ) plscadd standard software ( including tower spotting ) complete with technical support & update for 5 years. , ii ) pls tower software complete with technical support & update for 5 years. , iii ) pls mast / pole software complete with technical support & update for 5 years. , iv ) software for ers